MATHEMATICAL MODELING OF THE IMPACT OF RAW MATERIAL COMPOSITION ON COMPRESSIVE STRENGTH OF HIGH PERFORMANCE FINE-GRAINED CONCRETE

Vestnik MGSU 9/2017 Volume 12
  • Tang Van Lam - Moscow State University of Civil Engineering (National Research University) (MGSU) Postgraduate Student, Department Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Bulgakov Boris Igorevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Department of the Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Aleksandrova Olga Vladimirovna - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Department Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 999-1009

Subject of Study: the creation and analysis of mathematical models adequately describing the effect of the input variable factors - the proportions of raw components of the concrete mix - on the compressive strength of high performance fine-grained concrete at the age of 28 days of normal hardening, which are considered as output objective functions. Objectives: to determine the optimum ratios of ingredients of fine-grained concrete mixture, which allow us to achieve the maximum strength of concrete in compression. Materials: for obtaining fine-grained concrete mix, a finely distributed binder was used consisting of Portland cement of the type CEM II 42,5 N produced by the “Hoang Thach” factory, fly ash, rice husk ash (all - Vietnam) with addition of superplasticizer Ace 388 BASF (Germany) and polypropylene fine fibers Mega Mesh (Malaysia). As for the fine filler, quartz sand from the Lo river (Vietnam) was used. Methods: the compressive strength of high performance fine-grained concrete was determined in accordance with the requirements of GOST 10180-2012 “Concretes. Methods of strength determination by control samples”; the initial composition of the concrete mix was calculated using the absolute volume method. Results: the paper presents results of mathematical modeling of the effect of raw materials on the compressive strength of high performance fine-grained concrete at 28 days of normal hardening. First and second order regression equations for the dependence of the compressive strength on the ratio of raw materials x2 () and x3 () and also the image of the surface expression and the contour of the objective function for these regression equations were obtained. Conclusions: The maximum value of compressive strength of high performance fine-grained concrete at 28 days of age, evaluated by using the computer program Maple 13 in the regression equation of the second order, is R = 75.85 MPa at = 0.854 and = 0.324.

DOI: 10.22227/1997-0935.2017.9.999-1009

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HIGH-QUALITY SELF-COMPACTING CONCRETE WITH COAL BURNING WASTE

Vestnik MGSU 12/2017 Volume 12
  • Bazhenov Yuriy Mikhaylovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Head of the Department of Technologies of Cohesive Materials and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation.
  • Voronin Viktor Valerianovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Department of Technologies of Cohesive Materials and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation.
  • Alimov Lev Alekseevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Department of Technologies of Cohesive Materials and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation.
  • Bakhrakh Anton Mikhaylovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Professor of the Department of construction of thermal and nuclear power facilities, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation.
  • Larsen Oksana Aleksandrovna - Moscow State University of Civil Engineering (National Research University) (MGSU) Bachelor, Department of Technologies of Cohesive Materials and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation.
  • Solov'ev Vitaliy Nikolaevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Professor of the Department of Construction of Thermal and Nuclear Power Facilities, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Nguen Dyk Vin Kuang - Moscow State University of Civil Engineering (National Research University) (MGSU) Postgraduate student, Department of Technologies of Cohesive Materials and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation.

Pages 1385-1391

Subject: nowadays self-compacting concretes (SCC), the use of which requires no additional compaction, have become widespread for use in densely-reinforced structures and hard-to-reach places. In self-compacting concretes, finely-ground admixtures-microfillers are widely used for controlling technological properties. Their introduction into the concrete mix allows us to obtain more dense structure of concrete. The influence of micro-fillers on water consumption and plasticity of concrete mix, on kinetics of strength gain rate, heat release and corrosion resistance is also noticeable. Research objectives: the work focuses on the development of composition of self-compacting concrete with assigned properties with the use of fly ash based on coal burning waste, optimized with the help of experimental design method in order to clarify the influence of ash and cement quantity, sand size on strength properties. Materials and methods: pure Portland cement CEM I 42.5 N was used as a binder. Crushed granite of fraction 5…20 mm was used as coarse aggregate, coarse quartz sand with the fineness modulus of 2.6 and fine sand with the fineness modulus of 1.4 were used as fillers. A superplasticizer BASF-Master Glenium 115 was used as a plasticizing admixture. The fly ash from Cherepetskaya thermal power plant was used as a filler. The study of strength and technological properties of self-compacting concrete was performed by using standard methods. Results: we obtained three-factor quadratic dependence of strength properties on the content of ash, cement and fraction of fine filler in the mix of fine fillers. Conclusions: introduction of micro-filler admixture based on the fly ash allowed us to obtain a concrete mix with high mobility, fluidity and self-compaction property. The obtained concrete has high strength characteristics, delayed strength gain rate due to replacement of part of the binder with ash. Introduction of the fly ash increases degree of hydration of Portland cement due to the greater water retention capacity, and also contributes to reduction in total capillary porosity of SCC structure.

DOI: 10.22227/1997-0935.2017.12.1385-1391

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Thermogravimetric analysis of phase transitions in cement compositions mixed by sodium silicate solution

Vestnik MGSU 1/2014
  • Fedosov Sergey Viktorovich - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Scienc- es, Professor, member, Russian Academy of Architectural and Building Sciences (RAASN), President, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Akulova Marina Vladimirovna - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, Professor, counselor, Russian Academy of Architectural and Building Sciences (RAASN), head, Department of Con- struction Materials Science, Special Technologies and Technological Facilities department, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Slizneva Tatyana Evgenyevna - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, Associate Professor, Department of Higher and Applied Mathematics, Statistics and Information Technologies, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Potemkina O.V. - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, doctoral student, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 111-118

This paper presents a study of the capability to modify cement by mechanical activation of sodium silicate water solution. Admixtures or blends of binding agents were employed for modifying concrete properties. The liquid glass is applied to protect from chemically or physically unfavorable environmental impacts, such as acidic medium and high temperature. The sodium silicate is a high-capacity setting accelerator. The increasing of the liquid glass proportion in the mix leads to the degradation of the cement paste plasticity and for this reason it is necessary to reduce the amount of liquid glass in the cement paste. The activation of dilute water solution of sodium silicate into rotary pulsating apparatus directly before tempering of the cement paste is an effective way to decrease mass fraction of liquid glass in the cement paste. The results of the combined influence of liquid glass and mechanical activation on physicochemical processes taking place in cement stone are represented in this research. Thermogravimetric analysis was used in order to study cement blends. Thermogravimetric analysis of modified cement stone assays was performed by thermo analyzer SETARAM TGA 92-24. The results of the analysis of phase transition taking place under high-temperature heating of cement stone modified by the mechanical activation of the water solution of the sodium silicate were introduced. Thermograms of cement stone assays were obtained at different hardening age. The comparison of these thermograms allows us to come to a conclusion on the formation and the retention during long time of a more dense structure of the composite matrix mixed by the mechanical activation of sodium silicate water solution. The relation between the concrete composition and its strength properties was stated. Perhaps, the capability of modified concrete to keep calcium ions in sparingly soluble hydrosilicates leads to the increase in its durability and corrosion resistance.

DOI: 10.22227/1997-0935.2014.1.111-118

References
  1. Amjad Tariq, Ernest K. Yanful. A Review of Binders Used in Cemented Paste Tailings for Underground and Surface Disposal Practices // Jour. of Environmental Management. 2013, vol. 131, no. 12, pp. 138—149.
  2. Korneev V.I., Danilov V.V. Rastvorimoe i zhidkoe steklo [The Soluble and Liquid Glass]. Sankt-Petersburg, Stroyizdat Publ., 1996, 216 p.
  3. Brykov A.S. Aqueous Jellies in the K2O-SiO2-H2O System and their Use in Technology of Fire-resistant Glass. Glass Processing Days 2007: Conference Proceedings Book. Tampere, pp. 350—351.
  4. Mikhaylenko N.Yu., Klimenko N.N., Sarkisov P.D. Stroitel'nye materialy na zhidkostekol'nom svyazuyushchem. Chast' 1. Zhidkoe steklo kak svyazuyushchee v proizvodstve stroitel'nykh materialov [Construction Materials on Liquid Glass Binder. Part 1. Liquid Glass as a Binder in Construction Materials Production]. Tekhnika i tekhnologiya silikatov [Technologies of Silicates]. 2012, vol. 19, no. 2, pp. 25—28.
  5. Shestakov S. Study the Possibility of Non-parametric Amplification Multibubble Cavitation. Applied Physics. Vol. 6, pp. 18—24.
  6. Promtov M.A. Perspektivy primeneniya kavitatsionnykh tekhnologiy dlya intensifikatsii khimiko-tekhnologicheskikh protsessov [Prospects of Using Cavitating Technologies in order to Intensify Chemical and Technological Processes]. Vestnik TGTU [Proceedings of Tver State Technical University]. 2008, vol. 14, no. 4, pp. 861—869.
  7. Vorob'ev Yu.V. Osnovy teorii mekhanoaktivatsii zhidkikh sred [Fundamentals of the Theory of Mechanical Activation of Liquid Medium]. Vestnik TGTU [Proceedings of Tver State Technical University]. 2013, vol. 19, no. 3, pp. 608—613.
  8. Akulova M.V., Strel'nikov A.N., Slizneva T.E., Padokhin V.A., Bazanov A.V. Mekhanoimpul'snaya aktivatsiya zhidkofaznykh funktsional'nykh dobavok v tsementy i betony [Mechanic and Impulsive Activation of Liquid-phase Functional Additives in Cements and Concretes]. Aktual'nye problemy sovremennogo stroitel'stva: materialy Mezhdunarodnoy nauchno-prakticheskoy konferentsii [Current Problems of Contemporary Construction: Materials of International Scientific and Practical Conference]. Penza, PGUAS Publ., 2011, pp. 5—8.
  9. Topor N.D., Ogorodova L.P., Mel'chakova L.V. Termicheskiy analiz mineralov i neorganicheskikh soedineniy [Thermal Analysis of Minerals and Inorganic Compounds]. Moscow, MGU Publ., 1987, 190 p.
  10. Ramachandran V.S., Paroli R.M., Beaudoin J.J., Delgado A.H. Handbook of Thermal Analysis of Construction Materials. Noyes Publications William Andrew Publishing, 2002, 692 p.
  11. Brown M.E. Introduction to Thermal Analysis. Techniques and Applications. 2-nd ed., Kluwer Academic Publishers, Dordrecht, 2001, 264 p.
  12. Fedosov S.V., Akulova M.V., Slizneva T.E., Akhmadulina Yu.S., Padokhin V.A., Bazanov A.V. Svoystva tsementnykh kompozitov na mekhanoaktivirovannom rastvore silikata natriya [Properties of Cement Composites by the Mechanoactivation of Solution of the Sodium Silicate]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 1, pp. 57—62.

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FINE-GRAINEDCONCRETE MODIFIED BY INTEGRATED MICRO-DISPERSIVE ADDITIVE

Vestnik MGSU 2/2013
  • Bazhenov Yuriy Mikhaylovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Technology of Binders and Concretes; +7 (495) 781-80-07, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Lukuttsova Natal’ya Petrovna - Federal State Educational Institution of Higher Education Bryansk State Technological University of Engineering Doctor of Technical Sciences, Professor, chair, Department of Building Structures Production, Federal State Educational Institution of Higher Education Bryansk State Technological University of Engineering, prospekt Stanke Dimitrova str., Bryansk, 241037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Karpikov Evgeniy Gennadievich - Bryansk State Academy of Engineering and Technology (BGITA) +7 (953) 282-82-48, Bryansk State Academy of Engineering and Technology (BGITA), 3 prospekt Stanke Dimitrova, Bryansk, 241037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 94-100

The purpose of the research consists in development of integrated micro dispersive additives designated for effective fine-grained concretes of the new generation and based on the inferior grade quartz sand.The academic novelty of the research consists in substantiation of feasibility of generation of effective fine-grained concretes that demonstrate improved physical and mechanical properties due to the adjustment of the structure of the integrated micro additive developed by the authors.The integrated additive comprises quartz sand milled in the ball mill together with C-3 plasticizer, the content of which is equal to 1 % of the mass of the material, and the milling time is 60 min. Another objective of the research is the study of the effect of micro-additives produced onto physical-mechanical properties of samples of fine-grained concretes (dimen-sions 4×4×16 cm) made of cement M 500 D20 and quartz sand with Mhardened according to the regular procedure.= 0,9 andThus, the authors have discovered that the integrated micro-additive improves the compressive strength of the concrete to 50 MPA, flexural strength — up to 8,3 MPA, water absorption — to 1,4 % and frost resistance — to F75, while its content reaches 5—10% of the cement mass.

DOI: 10.22227/1997-0935.2013.2.94-100

References
  1. Lukuttsova N.P., Pykin A.A., Chudakova O.A. Modifitsirovanie melkozernistogo betona mikro- i nanorazmernymi chastitsami shungita i dioksida titana [Modification of Fine-grained Concrete Using Micro- and Nano-sized Particles of Schungite and Titanium Dioxide]. Vestnik BGTU im. V.G. Shukhova [Proceedings of Bryansk State Technical University named after Shukhov]. 2010, no. 2, pp. 66—70.
  2. Bazhenov Yu.M., Lukuttsova N.P., Matveeva E.G. Issledovanie vliyaniya nanomodifitsiruyushchey dobavki na prochnostnye i strukturnye parametry melkozernistogo betona [Research into the Influence of the Nano-modifying Additive on the Strength and Structural Parameters of the Fine-grained Concrete]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 2, pp. 215—219.
  3. Bazhenov Yu.M., Lukuttsova N.P., Matveeva E.G. Issledovanie nanomodifitsirovannogo melkozernistogo betona [Study of Nano-modified Fine-grained Concrete]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 4, vol. 2, pp. 415—421.
  4. Lukuttsova N.P., Matveeva E.G. Nanomodifitsirovannnyy melkozernistyy beton [Nanomodified Fine-grained Concrete]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, special issue no. 4, pp. 84—90.
  5. Lukuttsova N.P., Matveeva E.G., Fokin D.E. Issledovanie melkozernistogo betona, modifitsirovannogo nanostrukturnoy dobavkoy [Study of Fine-grained Concrete Modified by the Nano-structured Additive]. Vestnik BGTU im. V.G. Shukhova [Proceedings of Bryansk State Technical University named after Shukhov]. 2010, no. 4, pp. 6—11.
  6. Chan Min’ Dyk, Sakharov G.P. Usadka i polzuchest’ melkozernistogo betona iz ekstrudirovannykh smesey [Shrinkage and Creep of the Fine-grained Concrete That Contains Extruded Mixtures]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, special issue no. 1, pp. 384—390.
  7. Karpikov, E.G., Petrov R.O., Kirienko D.A. Kompleksnye dobavki dlya betonov, kak faktor resheniya problem urbaniirovannykh territoriy [Integrated Additives for Concretes as a Factor of Resolution of Problems of Urbanized Territories]. Biosfernosovmestimye goroda i poseleniya: materialy mezhdunar. nauchn.-prakt. konf. [Biosphere-compatible Cities and Settlements. Works of the International Scientific and Practical Conference]. Bryansk, 11—13 December, 2012, pp. 78—82.
  8. Bazhenova S.I., Alimov L.A. Vysokokachestvennye betony s ispol’zovaniem otkhodov promyshlennosti [High-quality Concretes That Contain Industrial Waste]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 1, pp. 226—231.
  9. Tolypina N.M., Rakhimbaev Sh.M., Karpacheva E.N. Ob effektivnosti deystviya superplastifikatorov v melkozernistykh betonakh v zavisimosti ot vida melkogo zapolnitelya [On the Effectiveness of Super-plasticizers in Fine-grained Concretes Depending on the Type of the Fine Aggregate]. Vestnik BGTU im. V.G. Shukhova [Proceedings of Bryansk State Technical University named after Shukhov]. 2010, no. 3, pp. 66—74.
  10. Pykin A.A., Lukuttsova N.P., Kostyuchenko G.V. K voprosu o povyshenii svoystv melkozernistogo betona mikro- i nanodispersnymi dobavkami na osnove shungita [On the Issue of Improvement of the Properties of Fine-grained Concrete Using Micro- and Nano-dispersive Additives That Contain Schungite]. Vestnik BGTU im. V.G. Shukhova [Proceedings of Bryansk State Technical University named after Shukhov]. 2011, no. 2, pp. 22—27.

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FINE CONCRETE CONTAINING WATER, EXPOSED TO MECHANIC AND MAGNETIC TREATMENT, AND FLUIDIFIER

Vestnik MGSU 5/2012
  • Fedosov Sergey Viktorovich - Ivanovo State Architecturally-building University Acad. of RAASN, Doctor tech. Sciences, Professor, rector of +7-(4932)-32-85-40, Ivanovo State Architecturally-building University, 20, 8-th March, Ivanovo, Russia, 153037; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Akulova Marina Vladimirovna - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, Professor, counselor, Russian Academy of Architectural and Building Sciences (RAASN), head, Department of Con- struction Materials Science, Special Technologies and Technological Facilities department, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Slizneva Tat'yana Evgen'evna - Ivanovo State University of Architecture and Civil Engineering (ISUACE) Candidate of Technical Sciences, Associated Professor, Department of Higher and Applied Mathematics, Ivanovo State University of Architecture and Civil Engineering (ISUACE), 20 8ogo Marta St., Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Padokhin Valeriy Alekseevich - Institute of Machine Science named after A.A. Blagonravov of the Russian Academy of Sciences (IMASH RAN) Doctor of Technical Sciences, Professor, Principal Researcher, Institute of Machine Science named after A.A. Blagonravov of the Russian Academy of Sciences (IMASH RAN), 4 Malyy Khariton'evskiy per., Moscow, 101990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 120 - 127

The subject of research is the effect of mechanic and magnetic treatment of different concentrations of the aqueous solution of fluidifier S-3 produced onto the concrete mix rheology, compressive strength and structure formation. Mechanic and magnetic treatment was performed by the pulsed rotor machine equipped with a permanent magnet. It is identified that mechanic and magnetic treatment of the water added into the fluidifier improves the flowability of the concrete mix in comparison with the flowability of the concrete mix prepared absent of treated water, although the amount of the fluidifier meets technical specifications. S-3 fluidifier content in the mix that has treated water is smaller than the same content in a standard mix by several hundreds of times. The concrete mix that has treated water demonstrates highest flowability. The water-to-cement ratio was fixed at 0.4 for all specimens under consideration. In addition, the concrete that has treated water and a minimal amount of S-3 fluidifier (5% of the cement mass) demonstrates that its compressive strength is by far higher than the one of the concrete prepared through the application of the conventional approach that contemplates a standard fluidifier consumption rate. Following a thermal analysis, a thermogravimetric analysis and an X-ray diffractometry, it was discovered that the application of treated water accompanied by the minimal consumption of S-3 fluidifier caused the structure of the concrete cement stone to be more compact, while it demonstrated higher crystallization and stronger interphase interaction. Therefore, considerable reduction in the consumption of S-3 fluidifier, coupled with mechanic and magnetic treatment of the water improves concrete strength properties while concrete flowability does not deteriorate.

DOI: 10.22227/1997-0935.2012.5.120 - 127

References
  1. Khigerovich M.I., Bayer V.E. Gidrofobno-plastifitsiruyushchie dobavki dlya tsementov, rastvorov i betonov [Water-repellent Fluidifiers Designated for Cements, Mortars and Concretes]. Moscow, Stroyizdat Publ., 1979, 126 p.
  2. Batrakov V.G. Modifitsirovannye betony. Teoriya i praktika [Modified Concretes. Theory and Practice]. Moscow, 1998, 768 p.
  3. Rebinder P.A. Poverkhnostnye yavleniya v dispersnykh sistemakh [Surface Phenomena Demonstrated by Disperse Systems]. Moscow, Kolloidnaya Khimiya [Colloid Chemistry], 1978, 368 p.
  4. Bessonova A.P., Stas’ I.E. Vliyanie vysokochastotnogo elektromagnitnogo polya na fizikokhimicheskie svoystva vody i ee spektral’nye kharakteristiki [Influence of High-Frequency Electromagnetic Field onto Physical and Chemical Properties of Water and Its Spectral Characteristics]. Polzunovskiy Vestnik [Polzunov Herald]. 2008, no. 3, pp. 305—309.
  5. Naberukhin Ju.N. Strukturnye modeli zhidkosti [Structural Liquid Models]. Moscow, Nauka Publ., 1981, 185 p.
  6. Fedosov S.V., Akulova M.V., Slizneva T.E., Strel’nikov A.N., Padokhin V.A. Izuchenie vliyaniya rezhimov mekhanomagnitnoy aktivatsii vodnogo rastvora tiosul’fata natriya razlichnykh kontsentratsiy na svoystva tsementnykh kompozitov [Study of Influence of Modes of Mechanic and Magnetic Treatment of Various Concentrations of the Aqueous Solution of Sodium Thiosulfate onto the Properties of Cement Composites]. Vestnik BGTU im. V.G. Shukhova [Herald of Shuchov BSTU]. 2010, no. 4, pp. 21—25.
  7. Fedosov S.V., Akulova M.V., Slizneva T.E., Kasatkina V.I. Opredelenie tekhnologicheskikh parametrov mekhanomagnitnoy aktivatsii vodnykh sistem s plastifitsiruyushchey dobavkoy [Identification of Process Parameters of Mechanic and Magnetic Treatment of Aqueous Systems that Contain Fluidifier]. Stroitel’nye Materialy [Building Materials]. 2010, no.3, pp.49—51.
  8. Vasil’ev E.K., Nakhmanson M.M. Kachestvennyy rentgenofazovyy analiz [Qualitative X-Ray Diffractometry Analysis]. Novosibirsk, Nauka Publ., 1986, 200 p.
  9. Klassen V.I. Omagnichivanie vodnykh sistem [Treatment of Aquatic Systems by a Magnet]. Moscow, Khimiya Publ., 1982, 296 p.

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Investigation of the effect of additives on the basis of pickling solutions containing iron salts on the structure and strength of fine concrete

Vestnik MGSU 1/2016
  • Lukuttsova Natal’ya Petrovna - Federal State Educational Institution of Higher Education Bryansk State Technological University of Engineering Doctor of Technical Sciences, Professor, chair, Department of Building Structures Production, Federal State Educational Institution of Higher Education Bryansk State Technological University of Engineering, prospekt Stanke Dimitrova str., Bryansk, 241037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pashayan Ararat Aleksandrovich - Federal State Educational Institution of Higher Education Bryansk State Technological University of Engineering Doctor of Chemical Sciences, Professor, chair, Department of Chemistry, Federal State Educational Institution of Higher Education Bryansk State Technological University of Engineering, prospekt Stanke Dimitrova str., Bryansk, 241037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Khomyakova Ekaterina Nikolaevna - Federal State Educational Institution of Higher Education Bryansk State Technological University of Engineering postgraduate student, Department of Building Structures Production, Federal State Educational Institution of Higher Education Bryansk State Technological University of Engineering, prospekt Stanke Dimitrova str., Bryansk, 241037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 94-104

The modern tendencies of construction industry development are connected with the use of new high-efficient materials with the application of resource- and energy-saving technologies of their generation. The use of industrial man-made products as the components improving the characteristics of construction products is now a promising field of research. The article presents the results of the use of waste pickling solutions of steel rolling factories, containing salts of iron as nanomodified additives for the products based on cement binder. The effectiveness of the influence of the considered additives on the structure and strength of fine-grained concrete is shown. If using this additive in the amount of 0.32 % from the mass of cement for 28 days of natural hardening, the fine concrete strength is growing by 1.8 times due to additional formation of hydrosilicates, densification of structure and reduction of the total porosity of the cement system by 2 times.

DOI: 10.22227/1997-0935.2016.1.94-104

References
  1. Volodchenko A.A., Zagorodnyuk L.Kh., Prasolova E.O., Akhmed A.A., Kulik N.V., Kolomatskiy A.S. Problema ratsional’nogo prirodopol’zovaniya [Problems of Sustainable Nature Management]. Vestnik Belgorodskogo gosudarstvennogo tekhnicheskogo universiteta im. V.G. Shukhova [Bulletin of BSTU named after V.G. Shukhov]. 2014, no. 6, pp. 7—10. (In Russian)
  2. Bazhenov S.I., Alimov L.A. Vysokokachestvennye betony s ispol’zovaniem otkhodov promyshlennosti [High-quality Concretes with the Use Industrial Wastes]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 1, pp. 226—230. (In Russian)
  3. Ramesh M., Karthic K.S., Karthikeyan T., Kumaravel A. Construction Materials from Industrial Wastes — A Review of Current Practices. International Journal of Environmental Research and Development. 2014, no. 4, pp. 317—324.
  4. Pati D.J., Iki K., Homma R. Solid Waste as a Potential Construction Material for Cost-Efficient Housing in India. 3rd World Conference on Applied Sciences, Engineering & Technology. Kathmandu, 2014, pp. 240—245.
  5. Oreshkin D.V. Problemy stroitel’nogo materialovedeniya i proizvodstva stroitel’nykh materialov [Problems of Building Material Science and Building Materials Production]. Stroitel’nye materialy [Construction Materials]. 2010, no. 11, pp. 6—9. (In Russian)
  6. Alfimova N.I., Cherkasov V.S. Perspektivy ispol’zovaniya otkhodov proizvodstva keramzita v stroitel’nom materialovedenii [Prospects for the Use of Claydite Production Waste in Building Material Science]. Vestnik Belgorodskogo gosudarstvennogo tekhnicheskogo universiteta im. V.G. Shukhova [Bulletin of BSTU named after V.G. Shukhov]. 2010, no. 3, pp. 21—24. (In Russian)
  7. Buldyzhov A.A., Alimov L.A. Samouplotnyayushchiesya betony s nanomodifikatorami na osnove tekhnogennykh otkhodov [Self-Compacting Concretes with Nanomodifiers on the Basis of Industrial Waste]. Promyshlennoe i grazhdanskoe stroitel’stvo [Industrial and Civil Engineering]. 2014, no. 8, pp. 86—88. (In Russian)
  8. Alfimova N.I., Sheychenko M.S., Karatsupa S.V., Yakovlev E.A., Kolomatskiy A.S., Shapovalov N.N. Features of Application of High-Mg Technogenic Raw Materials as a Component of Composite Binders. Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2014, no. 5, vol. 5, pp. 1586—1591.
  9. Shapovalov N.N., Kalatozi V.V., Yurakova T.G., Yakovlev O.A. Kompozitsionnye vyazhushchie s ispol’zovaniem tekhnogenogo alyumosilikatnogo syr’ya [Composite Binders with the Use Technogenic Aluminosilicate Raw Material]. Vestnik Belgorodskogo gosudarstvennogo tekhnicheskogo universiteta im. V.G. Shukhova [Bulletin of BSTU named after V.G. Shukhov]. 2015, no. 3, pp. 44—48. (In Russian)
  10. Tukhareli V.D., Akchurin T.K., Cherednichenko T.F. Effektivnyy modifitsirovannyy beton s ispol’zovaniem otkhodov neftepererabotki dlya monolitnogo stroitel’stva [Effective Modified Concrete for Monolithic Construction with the Use of Refinery Wastes]. Vestnik Volgogradskogo arkhitekturno-stroitel’nogo universiteta. Stroitel’stvo i arkhitektura [Bulletin of Volgograd State University of Architecture and Civil Engineering. Series: Construction and Architecture]. 2014, no. 37 (56), pp. 112—120. (In Russian)
  11. Lesovik V.S., Strokova V.V. O razvitii nauchnogo napravleniya «nanosistemy v stroitel’nom materialovedenii» [On the Development of Scientific Direction “Nanosystems in Building Material Science”]. Stroitel’nye materialy [Construction Materials]. 2006, no. 9, pp. 93—101. (In Russian)
  12. Figovskiy O.L., Beylin D.A., Ponomarev A.N. Uspekhi primeneniya nanotekhnologiy v stroitel’nykh materialakh [Success of Applying Nanotechnologies in Construction Materials]. Nanotekhnologii v stroitel’stve: nauchnyy Internet-zhurnal [Nanotechnologies in the Construction : Scientific Online Magazine]. 2012, vol. 4, no. 3, pp. 6—21. Available at: http://nanobuild.ru/ru_RU/journal/Nanobuild_3_2012_RUS.pdf. Date of access: 15.10.2015. (In Russian)
  13. Yakovlev G.I., Polyanskikh M.S., Machyulaytis R., Kerene Ya., Malayshkene Yu., Kizinevich O., Shaybadullina A.V., Gordina A.F. Nanomodifitsirovanie keramicheskikh materialov stroitel’nogo naznacheniya [Nanomodification of Ceramic Materials for Construction Application]. Stroitel’nye materialy [Construction Materials]. 2013, no. 4, pp. 62—64. (In Russian)
  14. Lukuttsova N.P., Pykin A.A. Stability of Nanodisperse Additives Based on Metakaolin. Glass and Ceramics. 2015, vol. 71, no. 11, pp. 383—386. DOI: http://dx.doi.org/10.1007/s10717-015-9693-7.
  15. Lukuttsova N.P., Lesovik V.S., Postnikova O.A., Gornostaeva E.Y., Vasunina S.V., Suglobov A.V. Nano-Disperse Additive Based on Titanium Dioxide. International Journal of Applied Engineering Research. 2014, no. 22, vol. 9, pp. 16803—16811.
  16. Lukuttsova N., Pykin A. Application of Nanodispersed Schungite as Functional Concrete Admixture. Scientific Israel. Technological Advantages. 2010, vol. 12, no. 3, pp. 40—43.
  17. Pykin A.A. Svoystva i struktura betona s dobavkoy nanodispersnogo shungita [Properties and Structure of Concrete with Addition of Nanosized Shungite]. Tekhnologiya betonov [Concrete Technologies]. 2011, no. 3, pp. 52—54. (In Russian)
  18. Khomyakova E.N., Pashayan A.A., Lukuttsova N.P. Issledovanie svoystv tsementnogo kamnya, nanomodifitsirovannogo dobavkami na osnove soley zheleza [Research of the Properties of Cement Stone Nanomodified by the Additive Based on Iron Salts]. Mezhdunarodnyy nauchno-issledovatel’skiy zhurnal [International Research Journal]. 2015, no. 5—2 (36), pp. 111—113. (In Russian)
  19. Vinnikova O.S., Lukashov S.V. Potentsiometrirovanie otrabotannykh zhelezosoderzhashchikh travil’nykh rastvorov [Potentiometric Titration of Spent Pickling Solutions Containing Iron]. Vestnik Mezhdunarodnoy akademii nauk ekologii i bezopasnosti zhiznedeyatel’nosti [Bulletin of the International Academy of Sciences of Ecology and Life Safety]. 2010, no. 5, pp. 112—116. (In Russian)
  20. Ovcharenko G.I., Gil’miyarov D.I. Fazovyy sostav avtoklavnykh izvestkovo-zol’nykh materialov [The Phase Composition of Autoclaved Lime-Ash Materials]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2013, no. 9 (657), pp. 28—33. (In Russian)
  21. Tarakanov O.V., Belyakova E.A. Vliyanie tonkodispersnykh aktivnykh dobavok na svoystva napolnennykh tsementnykh kompozitsiy [Influence of Fine Active Additives on the Properties of Filled Cement Compositions]. Rosnauka. Stroitel’stvo [Russian Science. Construction]. 2013, no. 4. Available at: http://www.rusnauka.com/12_KPSN_2013/Stroitelstvo/4_135868.doc.htm. Date of access: 11.11.2015. (In Russian)

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EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF POROUS AGGREGATES FOR LIGHTWEIGHT CONCRETE

Vestnik MGSU 2/2018 Volume 13
  • Semeynykh Natal’ya Sergeevna - - Perm National Research Polytechnic University (PNRPU) Candidate of Technical Science, Associate Professor, Department of Construction Engineering and Material Science, Perm National Research Polytechnic University (PNRPU), 29 Komsomol`skiy prospekt, Perm, 614990, Russian Federation.
  • Sopegin Georgiy Vladimirovich - Perm National Research Polytechnic University (PNRPU) Master Student, Department of Construction Engineering and Material Science, Perm National Research Polytechnic University (PNRPU), 29 Komsomol`skiy prospekt, Perm, 614990, Russian Federation.
  • Fedoseev Aleksey Viktorovich - Perm National Research Polytechnic University (PNRPU) Undergraduate Student, Department of Construction Engineering and Material Science, Perm National Research Polytechnic University (PNRPU), 29 Komsomol`skiy prospekt, Perm, 614990, Russian Federation.

Pages 203-212

Subject: among the modern heat-insulating materials lightweight concrete on porous aggregates is widely used. Currently, porous aggregates are mainly represented by expanded clay gravel, which has some drawbacks in its physical and mechanical properties: high content of split grains and significant grain shape factor. The presence of split grains in expanded clay gravel leads to an increase in consumption of cement paste. Significant grain shape factor limits the use of expanded clay gravel in lightweight concrete of higher strength. Granulated foam glass is an alternative porous aggregate for lightweight concrete. It is characterized by high physical and mechanical properties and low values of thermal conductivity. Research objectives: in this article, the results of studies of physical and mechanical properties of expanded clay gravel and granulated foam glass are presented, the differences between these materials are revealed and the possibility of using granulated foam glass as a porous aggregate in lightweight concrete is studied. Materials and methods: properties of granulated foam glass and expanded clay gravel are determined according to the standards. Conclusions: according to the test results, it was found that granulated foam glass has higher values for a complex of physical and mechanical properties in comparison with expanded clay gravel, produced traditionally. However, the compressive strength test in the cylinder showed that the granulated foam glass has a significantly lower strength than the expanded clay gravel with the same value of their apparent density. Also during the tests, the possibility of using granulated foam glass to obtain a lightweight concrete corresponding to the grade class B5 and density class D1000 was established. In this case, there is a need to adjust the grain-size composition of the aggregate and component composition of concrete mixture.

DOI: 10.22227/1997-0935.2018.2.203-212

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Effect of quartz powder and mineral admixtures on the properties of high-performance concrete

Vestnik MGSU 1/2019 Volume 14
  • Nguyen Duc Vinh Quang - Moscow State University of Civil Engineering (National Research University) (MGSU) Postgraduate student of Department of Technologies of Cohesive Materials and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bazhenov Yuriy M. - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Head of the Department of Technologies of Cohesive Materials and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Aleksandrova Olga V. - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Associate Professor of Department of Technologies of Cohesive Materials and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 102-117

Introduction. This study focuses on the use of silica fume partially replacing cement with 0, 5, 7.5, 10, 12.5 and 30 % constant replacement of fly ash by weight of cement in concrete. Concrete is probably the most extensively used construction material in the world. But the conventional concrete is losing its uses with time and high-performance concrete (HPC) is taking that place. HPC has superior mechanical properties and durability to normal strength concrete. Because of, the microstructure of HPC is more homogeneous than that of normal concrete (NC) due to the physical and chemical contribution of the mineral admixtures as well as it is less porous due to reduced w/c ratio with the addition of a superplasticizer. The inclusion of additives helped in improving the properties of concrete mixes due to the additional reduction in porosity of cement paste and improving the particle packing in the interfacial transition zone (between cement paste and the aggregates).In this experimental investigation the behavior of HPC with silica fume and fly ash with and without quartz powder were studied. The water-binder ratio was kept 0.3 and 20 % quartz flour as partial replacement of fine aggregate for all cases. Materials and methods. Used materials in Vietnam, as follow, Sulfate-resisting Portland cement - PCSR40 (type V) of company Luks Cement (Vietnam) Limited was used in the work. Crushed granite of fraction 9.5…20 mm - as coarse aggregate, Natural sand from Huong river of 0.15…2.5 mm fraction with the fineness modulus of about 3.0 and quartz powder with an average particle size of 5…10 μm were used as fillers; Sika® Viscocrete®-151 is a superplasticizer based on a blend of 3rd generation PCE polymers was used as a plasticizing admixture. The flg ash from Pha Lai thermal power plant and Sika silica Sikacrete® PP1 (particle size < 0.1 μm) was used as a mineral active admixture. The study of strength and technological properties of high-performance concrete was performed by using standard methods. Results. Established by icate that, the workability and strength increase at a certain level and after that, they decline with further increase in the replacement level of silica fume is 12.5 %, on the basis of 30 % FA replacement, the incorporation of 10 % SF showed equivalent or higher mechanical properties and durability compared to the reference samples. Conclusions. HPC consists of mineral admixtures such as silica fume and fly ash use combine quartz powder and superplasticizer helped in improving the strength and durability of concrete mixes due to the additional reduction in porosity of cement paste and an improved interface between it and the aggregate. With 30 % fly ash is optimum dosage used to replacement of cement, incorporation 10 % SF (by weight) and combine of partial replacement of fine aggregate by 20 % quartz powder. On the other hand, a few mathematical equations can be used to derive the durability properties of concrete based on its compressive strength.

DOI: 10.22227/1997-0935.2019.1.102-117

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EFFECT OF RICE HUSK ASH ON THE PROPERTIES OF HYDROTECHNICAL CONCRETE

Vestnik MGSU 6/2018 Volume 13
  • Ngo Xuan Hung - Moscow State University of Civil Engineering (National Research University) (MGSU) Postgraduate Student, Department Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Tang Van Lam - Moscow State University of Civil Engineering (National Research University) (MGSU) Postgraduate Student, Department Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Bulgakov Boris Igorevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Department of the Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Aleksandrova Ol’ga Vladimirovna - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Department of the Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Larsen Oksana Alexandrovna - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Ha Hoa Ky - Moscow State University of Civil Engineering (National Research University) (MGSU) Student, Department of the Construction of Unique Buildings and Structures, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Melnikova Anastasiya Igorevna - Moscow State University of Civil Engineering (National Research University) (MGSU) Student, Institute of Construction and Architecture, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 768-777

Subject: operation of concrete and reinforced concrete hydraulic structures on river systems and in the extended coastal zone of Vietnam takes place under the influence of aggressive environments, which significantly limits their service life. Therefore, the search for ways to solve the problem of increasing the durability and terms of maintenance-free operation of such facilities is very important. Previous studies have established the possibility of increasing the operational performance of hydraulic concrete (HC) by modifying their structure with complex additives that combine the water-reducing and densification effects. The possibility of increasing the quality of hydraulic concretes by using rice husk ash (RHA) as a finely dispersed mineral additive with high pozzolanic activity was also established. Research objectives: modification of the structure of hydraulic concrete; determination of the effect of an organo-mineral modifier consisting of RHA in combination with a superplasticizer on water resistance, chloride-ion permeability and strength of hydraulic concrete. Materials and methods: portland cement of type CEM II 42.5 N was used with the addition of rice husk ashes and a superplasticizer ACE 388 “Sure Tec” BASF. Quartz sand and limestone crushed stone were used as aggregates. Composition of the concrete mixture, compressive strength of concretes, water resistance and permeability of the concrete structure for chloride ions was calculated based on methods of Russian and international standards. Results: the use of an organo-mineral modifier consisting of a water-reducing superplasticizer ACE 388 and finely dispersed rice husk ash leads to a densification of the HC structure, which increases their water resistance and decreases the permeability for chloride ions. Conclusions: it was found that the introduction of the developed organo-mineral additive into the concrete mixture leads to densification of the concrete structure, contributes not only to the growth of compression strength at the age of 28 days by 32 % for HC-10, 23 % for HC-20 and 9 % for HC-30, but also to the increase of its water resistance by one or two marks. In addition, there is a significant decrease in the permeability for chloride ions of HC samples containing 10, 20 and 30 % RHA by mass of the binder, since the average value of electric charge that have passed through the samples made of HC-10, HC-20 and HC-30 were 305, 367.5 and 382.7 K respectively against 2562 K for control samples made of non-modified concrete without RHA. (The experimental results of measuring permeability for chloride ions were obtained according to standard ASTM C1202-12). Our study has confirmed the assumption that the introduction into the concrete mix of organo-mineral modifier consisting of a polycarboxylate superplasticiser and fine ash of rice husk, up to 90 % consisting of amorphous silica, will increase the density of hydraulic concrete structure, which will increase their strength, water resistance and reduce permeability for chloride ions.

DOI: 10.22227/1997-0935.2018.6.768-777

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