RESEARCH OF BUILDING MATERIALS

Influence of wollastonite on the mechanical strength of the cement stonemade of portland cement clinker

Vestnik MGSU 3/2013
  • Berdov Gennadiy Il’ich - Sibstrin Novosibirsk State University of Architecture and Civil Engineering (NGASU Sibstrin) Doctor of Technical Sciences, Professor, Department of Construction Materials and Specialized Technologies; +7 (913) 769-18-59, Sibstrin Novosibirsk State University of Architecture and Civil Engineering (NGASU Sibstrin), 113 Leningradskaya St., Novosibirsk, 630008, Russian Federation.
  • Il’ina Liliya Vladimirovna - Sibstrin Novosibirsk State University of Architecture and Civil Engineering (NGASU Sibstrin) Doctor of Technical Sciences, Professor, Department of Construction Materials and Specialized Technologies, Sibstrin Novosibirsk State University of Architecture and Civil Engineering (NGASU Sibstrin), 113 Leningradskaya St., Novosibirsk, 630008, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Rakov Mikhail Andreevich - Sibstrin Novosibirsk State University of Architecture and Civil Engineering (NGASU Sibstrin) postgraduate student, Department of Construction Materials and Specialized Technologies, Sibstrin Novosibirsk State University of Architecture and Civil Engineering (NGASU Sibstrin), 113 Leningradskaya St., Novosibirsk, 630008, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Oreshkin Dmitriy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Chair, Department of Construction Materials; +7 (499) 183-32-29., 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 .

Pages 120-126

The authors have completed a research into the influence of wollastonite onto the strength of the cement stone, if the latter is freshly made or stored in the humid environment for four months. The authors believe that the optimal share of the wollastonite admixture is equal to 5…9 %.The strength of wollastonite-free clinker samples is not reduced, if the clinker is stored in the humid environment and exposed to heat and moisture treatment. Upon the expiry of the 28-days’ curing period, the strength of samples is down by 4 % in the regular environment. In this case, the wollastonite admixture (7 %) improves the strength of samples upon the expiry of the 28 days’ curing period and their strength goes up by28 %, while the strength of samples goes up by 17 % upon their exposure to heat and moisture treatment.The authors believe that the influence produced by wollastonite may be explained by the following reasons. In the event that freshly milled powder (clinker) is added, wollastonite produces its influence on the hydration process, as formation of new compounds (hydrates) is influenced by a strong adsorption field of wollastonite particles.If clinker is stored in the humid environment, its substantial share is subject to hydration and carbonization.

DOI: 10.22227/1997-0935.2013.3.120-126

References
  1. Ramachandran V.S., editor. Dobavki v beton [Concrete Admixtures]. Moscow, Stroyizdat Publ., 1988, 575 p.
  2. Kuznetsova T.V., Kuryashov I.V., Timashev V.V. Fizicheskaya khimiya vyazhushchikh materialov [Physical Chemistry of Binders]. Moscow, Vyssh. shk. publ., 1989, 384 p.
  3. Tsimermanis. L.–Kh.B. Termodinamika vlazhnostnogo sostoyaniya tverdeniya stroitel’nykh materialov [Thermodynamics of the Humid Condition in the Course of Curing of Construction Materials]. Riga, ZINATNE Publ., 1989, 247 p.
  4. Vest A. Khimiya tverdogo tela. Teoriya i prilozheniya. Ch. 1 [Solid Body Chemistry. Theory and Applications. Part 1.] Moscow, Mir Publ., 1988, 558 p.
  5. Volzhenskiy A.V., Burov Yu.S., Kolokol’nikov V.S. Mineral’nye vyazhushchie veshchestva [Mineral Binders]. Moscow, Stroyizdat Publ., 1979, 476 p.
  6. Kolbasov V.M., Leonov I.I., Sulimenko L.M. Tekhnologiya vyazhushchikh materialov [Technology of Binders]. Moscow, Stroyizdat Publ., 1987, 432 p.
  7. Il’ina L.V. Povyshenie ekspluatatsionnykh kharakteristik stroitel’nykh materialov na osnove tsementa dlitel’nogo khraneniya [Improvement of Performance Characteristics of Construction Materials Made of Long-storage Cement]. Novosibirsk, 2011, 351 p.
  8. Gorchakov G.I., Bazhenov Yu.M. Stroitel’nye materialy [Construction Materials]. Moscow, Stroyizdat Publ., 1986, 688 p.
  9. Berdov G.I., Il’ina L.V. Aktivatsiya tsementov deystviem mineral’nykh dobavok [Activation of Cements by Mineral Admixtures]. Mezhdunarodnyy zhurnal prikladnykh i fundamental’nykh issledovaniy [International Journal of Applied and Fundamental Research]. 2010, no. 9, pp. 55—58.

Download

INTERACTION OF MECHANICALLY ACTIVATED WATER WITH THE CEMENT BINDING AGENT

Vestnik MGSU 2/2012
  • Gujumdzhjan Perch Pogosovich - Ivanovо State University of Architecture and Civil Engineering Doctor of Technical Sciences, Professor, Department of Production of Building Materials, Ivanovо State University of Architecture and Civil Engineering, 20 March 8 St., Ivanovo, 153037, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Vetrenko Tat'jana Grigor'evna - Ivanovо State University of Architecture and Civil Engineering Candidate of Technical Sciences, Associated Professor, Department of Hydraulics, Water Supply and Sanitation 8 (4932) 32-85-40, Ivanovо State University of Architecture and Civil Engineering, 20 March 8 St., Ivanovo, 153037, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ladaev Nikolaj Mihajlovich - Ivanovо State University of Architecture and Civil Engineering Candidate of Technical Sciences, Associated Professor, Department of Production of Building Materials 8 (4932) 41-39-06 8 (4932) 38-40-20, Ivanovо State University of Architecture and Civil Engineering, 20 March 8 St., Ivanovo, 153037, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zinov'eva Ekaterina Vital'evna - Ivanovо State University of Architecture and Civil Engineering Senior Lecturer, Department of Heat, Gas Supply and Ventilation, Ivanovо State University of Architecture and Civil Engineering, 20 March 8 St., Ivanovo, 153037, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 117 - 120

The article presents the procedure of interaction between the water and the particles of the cement binding agent, if subjected to high-speed processing inside an intensive mixing device that represents a hydrodynamic stirrer composed of a rotor and variable section turbines. The proposed method of modification (mechanical activation) of the cement and water suspension makes it possible to reduce the cost of concrete due to reduction of the cement consumption rate. The research of strength-related properties of the cement stone has proven that high-speed mechanical processing of the binding agent, if mixed with the water, may improve mechanical properties of concrete by 25 to 30 %.

DOI: 10.22227/1997-0935.2012.2.117 - 120

References
  1. Zacepina G.N. Fizicheskie svojstva i struktura vody [Physical Properties and Structure of Water], 2nd edition. Moscow, Himija, 1987.
  2. Usmanov S.M. Radiacija: spravochnye materialy [Radiation: Reference Materials]. Moscow, VLADOS, 2001.
  3. Haritonov A.M. Strukturno imitacionnoe modelirovanie v issledovanijah svojstv cementnyh kompozitov [Structural Simulation as Part of Research of Properties of Cement Composites]. Author’s abstract of the dissertation for the title of the doctor of technical sciences, St.Petersburg, PGASU, 2009.
  4. Gujumdzhjan P.P., Rascvetova E.A., Vetrenko T.G., Vaganov F.A. Vlijanie vysokoskorostnoj obrabotki vody v vodno-cementnoj suspenzii na svojstva betona [Impact of High-Speed Processing of Water and Cement Suspension onto Concrete Properties], Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering], 2009, Issue # 2, pp. 146—152.

Download

CHEMICAL COMPOSITION OF THE CEMENT STONE MODIFIED BY BARIUM HYDROSILICATES

Vestnik MGSU 10/2015
  • Grishina Anna Nikolaevna - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, senior research worker, Research and Educational Center “Nanomaterials and Nanotechnologies”, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Korolev Evgeniy Valer’evich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Department of Construction Materials and Materials Science, Director, SEC “Nanomaterials and nanotechnology”, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 66-74

The article is devoted to the investigation of chemical composition of cement stone modified by micro- and nanoscale barium hydrosilicates. It is shown that introduction of a nanomodifier leads to increased amount of various calcium hydrosilicates, lowers the amount of portlandite and calcium hydrosulfoaluminates. The specifics of influence of various barium hydrosilicates on the chemical composition of cement stone is revealed. It is shown that sol made of precursor with the content of С(Fe(OH)3) = 0.7 %, α = 1.0 (that was stored for 28 days) is the most effective among all other examined nanomodifiers. This can be due to the specific values of silicic acid concentration in the modifier and also by pH value of the medium; other factors may also affect the efficiency. Because of different content of silicic acid the modification of the portland cement by micro-sized barium hydrosilicates decreasesthe amount of portlandite (about two times). The sequential modification with nano- and micro-scale modifiers allows reducing the amount of portlandite by 3.67…60.5 times. Thus, nanomodification of the previously optimized (at the micro scale) cement composite (cement stone) is the most effective. High efficiency of the sol that was made of precursor with the content of С(Fe(OH)3) = 0.5 %, α = 1.5 is also observed. During our experiments we have also revealed the distinctive feature of the nanomodification of cement stone. This feature consists in content growth for specific type of calcium hydrosilicates. In particular, by means of using the sol that was made of precursor with the content of С(Fe(OH)3) = 0.5-0.7 %, α = 1.0, the amount of silicon-oxygen tetrahedrons can be magnified; the relative amount of silicon-oxygen ν(SiO) chains can also be increased in case of α = 1.5.

DOI: 10.22227/1997-0935.2015.10.66-74

References
  1. Sharapov R.R., Shaptala V.G., Alfimova N.I. Prognozirovanie dispersnykh kharakteristik vysokodispersnykh tsementov [Forecasting Disperse Characteristics of Finely-Dispersed Concretes]. Stroitel’nye materialy [Construction Materials]. 2007, no. 8, pp. 24—25. (In Russian)
  2. Mardanova E.I., Senerina N.V., Rakhimov R.Z. Vysokodispersnye napolnennye tsementy s ispol’zovaniem glinistykh peskov [Finely-Dispersed Filled Cements with the Use of Clay Sands]. Stroitel’nye materialy i izdeliya : sbornik [Construction Materials and Products :Collection]. 2000. Available at: http://sbcmi.ru/vysokodispersnye-napolnennye-tsementi-s-ispolzovaniem-glinistih-peskov. Date of access: 26.08.2015. (In Russian)
  3. UHPC Ultra High Performance Concrete with Nanodur Compound 5941. Available at: http://www.dyckerhoff.com/online/download.jsp?idDocument=110&instance=1. Date of access: 08.09.2015.
  4. Rastvor dlya in”ektsiy na osnove mikrotsementa [Solution for Injections Based on Micro Cement]. Available at: http://www.sika-yug.ru/Solutions_Products/Construction/Structural_bonding_and_strengthening_of_structures/Injectable_formulations_for_repair/Sika_Injectocem-190. Date of access: 25.08.2015. (In Russian)
  5. Strokova V.V., Nelyubova V.V., Altynnik N.I., Zhernovskiy I.V., Osadchiy E.G. Fazoobrazovanie v sisteme tsement — izvest’ — kremnezem v gidrotermal’nykh usloviyakh s ispol’zovaniem nanostrukturirovannogo modifikatora [Phase Formation in the System Cement — Lime — Silica in Hydrothermal Conditions with the Use of Nanostructured Modifier]. Stroitel’nye materialy [Construction Materials]. 2013, no. 9, pp. 30—33. (In Russian)
  6. Rakhimov R.Z., Khaliullin M.I., Gayfullin A.R., Stroyanov O.V. Keramzitovaya pyl’ kak aktivnaya dobavka v mineral’nye vyazhushchie — sostav i putstsolanovye svoystva [Ceramsite Dust as Active Agent in Cementing Materials — Composition and Pozzolanic Properties]. Vestnik Kazanskogo tekhnologicheskogo universiteta [Herald of Kazan Technological University]. 2013, vol. 16, no. 19, pp. 57—61. (In Russian)
  7. Inozemtsev A.S. Metody IK- i KR-spektroskopii dlya issledovaniya protsessov strukturoobrazovaniya nanomodifitsirovannykh vysokoprochnykh legkikh betonov [Methods of Infrared and Raman Spectroscopy for Investigation of Structure Formation Processes of Nanomodified High-Strength Light Concretes]. Nauka i tekhnologiya: shag v budushchee — 2014 : materialy X Mezhdunarodnoy nauchno-prakticheskoy konferentsii, Praga [Science and Technology: Step into Future — 2014 : Materials of the 10th International Science and Practice Conference, Prague]. Obrazovanie i nauka Publ., 2014, vol. 31, pp. 26—30. (In Russian)
  8. Korolev E.V., Inocemcev A.S. Preparation and Research of the High-Strength Lightweight Concrete Based on Hollow Microspheres. Advanced Materials Research. 2013, vol. 746, pp. 285—288. DOI: http://dx.doi.org/10.4028/www.scientific.net/AMR.746.285.
  9. Grishina A.N., Korolev E.V. Effektivnost’ modifitsirovaniya tsementnykh kompozitov nanorazmernymi gidrosilikatami bariya [Efficiency of Modifying Cement Composites with Nanoscale Barium Hydrosilicate]. Stroitel’nye materialy [Construction Materials]. 2015, no. 2, pp. 72—76. (In Russian)
  10. Korolev E.V., Grishina A.N. Sintez i issledovanie nanorazmernoy dobavki dlya povysheniya ustoychivosti pen na sinteticheskikh penoobrazovatelyakh dlya penobetonov [Synthesis and Investigation of Nanoscale Additive for Raising the Stability of Foams on Synthetic Foam Agents for Foam Concretes]. Stroitel’nye materialy [Construction Materials]. 2013, no. 2, pp. 30—33. (In Russian)
  11. Shishelova T.I., Sozinova T.V., Konovalova A.N. Praktikum po spektroskopii [Practicum on Spectroscopy]. Voda v mineralakh [Water in Minerals]. Moscow, Akademiya Estestvoznaniya Publ., 2010, 88 p. (In Russian)
  12. Makridin N.I., Vernigorova V.N., Maksimova I.N. O mikrostrukture i sinteze prochnosti tsementnogo kamnya s dobavkami GSK [On Microstructure and Synthesis of Cement Stone Reliability with Hydrated Calcium Silicate Additives]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2003, no. 8, pp. 37—42. (In Russian)
  13. Chukin G.D. Khimiya poverkhnosti i stroenie dispersnogo kremnezema [Chemistry of Surface and Composition of Disperse Silica]. Moscow, Tipografiya Paladin Publ., OOO «Printa» Publ., 2008, 172 p. (In Russian)
  14. Korovkin M.V. Fizicheskie metody izucheniya mineralov (Ch. II) [Physical Methods of Investigating Minerals]. Available at: https://www.google.ru/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CBwQFjAAahUKEwiQ5fiovefHAhWHg3IKHWFWCWs&url=http%3A%2F%2Fportal.tpu.ru%2FSHARED%2Fm%2FMVK%2Ftraining%2FTab1%2FLecture_IKS(part_2).ppt&usg=AFQjCNFx47tVkQ_xsXsuhlI1ZKS79pWPqQ&bvm=bv.102022582,d.bGQ. Date of access: 27.08.2015. (In Russian)
  15. Chukin G.D., Malevich V.I. Infrared Spectra of Silica. Journal of Applied Spectroscopy. February 1977, vol. 26, no. 2, pp. 223—229. DOI: http://dx.doi.org/10.1007/BF00615613.
  16. Chukin G.D., Apretova A.I. Silica Gel and Aerosil IR Spectra and Structure. Journal of Applied Spectroscopy. April 1989, vol. 50, no. 4, pp. 418—422. DOI: http://dx.doi.org/10.1007/BF00659489.
  17. Innocenzi Plino. Infrared Spectroscopy of Sol-Gel Derived Silica-Based Films: A Spectra-Microstructure Overview. Journal of Non-Crystalline Solids. February 2003, vol. 319, issues 2-3, pp. 309—319. DOI: http://dx.doi.org/10.1016/S0022-3093(02)01637-X.
  18. El Rassy H., Pierre A.C. NMR and IR Spectroscopy of Silica Aerogel with Different Hydrophobic Characteristics. Journal of Non-Crystalline Solids. 2005, vol. 351, pp. 1603—1610. DOI: http://dx.doi.org/10.1016/j.jnoncrysol.2005.03.048.
  19. Chiyoe Koike, Yuta Imai, Ryo Noguchi, Hiroki Chihara, Akira Tsuchiyama, Osamu Ohtaka. IR Spectra of Silica (SiO2) Polymorphs. Available at: www.cps-jp.org/~mosir/pub/2011/2011-11-09/03_koike/pub-web/20111109_koike.pdf. Date of access: 28.08.2015.
  20. Dubrovin V.K., Zaslavskaya O.M., Chesnokov A.A. Mekhanizm gidratatsii kristallogidratnykh formovochnykh smesey na osnove silikatov kal’tsiya [Hydration Mechanism of Crystallohydrated Calcium Silicate Based Investments]. Vestnik Yuzhno-Ural’skogo gosudarstvennogo universiteta. Seriya: Metallurgiya [Bulletin of the South Ural State University. Series: Metallurgy]. 2010, no. 13 (189), pp. 59—63. (In Russian)
  21. Korolev E.V., Grishina A.N., Satyukov A.B. Khimicheskiy sostav nanomodifitsirovannogo kompozitsionnogo vyazhushchego s primeneniem nano- i mikrorazmernykh gidrosilikatov bariya [Chemical Composition of Nanomodified Composite Binder with Nano- and Microsized Barium Silicate]. Nanotekhnologii v stroitel’stve: nauchnyy internet zhurnal [Nanotechnologies in Construction: Scientific Internet Journal]. 2014, vol. 6, no. 4, рр. 90—103. (In Russian)

Download

DESIGN OF CEMENT COMPOSITES WITH INCREASED IMPERMEABILITY

Vestnik MGSU 5/2016
  • Fedyuk Roman Sergeevich - Far Eastern Federal University (FEFU) Senior Lecturer, Department of Hydrotechnology, Theory of Buildings and Structures, Far Eastern Federal University (FEFU), 8 Sukhanova str., Vladivostok, 690000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 72-81

The paper deals with the development of composite binders for producing concrete with improved characteristics of gas, water and vapor permeability. The authors investigate the processes of composite materials formation in order of decreasing scale levels from macro to nanostructures. The criteria for optimization of the volume of dispersed additives in concrete are offered. The authors theoretically studied the technological features of the formation of hydrated cement stone structure. A positive effect of nanodispersed additives on the structure and physico-mechanical properties of cement composite materials are predicted. Thanks to its improved features, such as good ratio of strength and body density, high density and lifetime, the modified concrete may be used when solving various practical tasks of the construction branch.

DOI: 10.22227/1997-0935.2016.5.72-81

References
  1. Aleksashin S.V. Povyshenie morozostoykosti i vodonepronitsaemosti melkozernistykh betonov dlya rechnykh gidrosooruzheniy : dissertatsiya … kandidata tekhicheskikh nauk [Increasing Frost Resistance and Water Impermeability of Fine-grained Concretes for River Hydraulic Structures : dissertation of the Candidate of Technical Sciences]. Moscow, 2014, 114 p. (In Russian)
  2. Kucherenko A.A. Poroshkovaya tekhnologiya betona. Chast’ 2 [Powder Concrete Technology. Part 2]. Tekhnologii betonov [Concrete Technologies]. 2009, no. 1 (30), pp. 58—60. (In Russian)
  3. Chernyshov E.M. Strukturnaya neodnorodnost’ stroitel’nykh kompozitov: voprosy materialovedcheskogo obobshcheniya i razvitiya teorii (chast’ 2) [Structural Inhomogeneity of Structural Composites: Issues of Material Science Generalization and Theory Development (Part 2)]. Rossiyskaya akademiya arkhitektury i stroitel’nykh nauk. Vestnik otdeleniya stroitel’nykh nauk. Nauchnoe izdanie [Proceedings of Construction Sciences Department of the Russian Academy of Architecture and Construction Sciences. Scientific issue]. Moscow-Orel-Kursk, 2011, no. 15, pp. 223—239. (In Russian)
  4. Obraztsov I.V. Optimizatsiya zernovykh sostavov tsementno-mineral’nykh smesey dlya proizvodstva stroitel’nykh kompozitov metodami komp’yuternogo modelirovaniya : dissertatsiya … kandidata tekhicheskikh nauk [Optimization of Grain Distribution of Cement and Mineral Aggregates for the Production of Construction Composites by Computer Modelling Methods : dissertation of the Candidate of Technical Sciences]. Tver, 2014, 131 p. (In Russian)
  5. Milyaev I.V. Optimizatsiya svoystv modifitsirovannogo tsementnogo kamnya [Optimization of the Properties of Modified Cement Stone]. Nauchnyy Vestnik VGASU [Scientific Proceedings of Voronezh State University of Architecture and Civil Engineering]. 2009, no. 5, pp. 102—104. (In Russian)
  6. Laurent P. Granger, Zdeněk P. Bažant. Effect of Composition on Basic Creep of Concrete and Cement Paste. Journal of Engineering Mechanics. November 1995, vol. 121 (11), pp. 1261—1270. DOI: https://dx.doi.org/10.1061/(ASCE)0733-9399(1995)121:11(1261).
  7. Shumkov A.I. Formirovanie i optimizatsiya makrostruktury tyazhelogo betona [Formation and Optimization of the Macrostructure of Heavy Concrete]. Tekhnologii betonov [Concrete Technologies]. 2008, no. 7, pp. 52—53. (In Russian)
  8. Kharkhardin A.N. Modeli potentsialov i sil parnogo vzaimodeystviya mikro- i nanochastits v dispersnykh sistemakh [Models of the Potentials and Forces of the Interaction of Micro and Nanoparticles in Disperse Systems]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2011, no. 2, pp. 117—126. (In Russian)
  9. Kharkhardin A.N. Strukturnaya topologiya dispersnykh sistem vzaimodeystvuyu-shchikh mikro- i nanochastits [Structural Topology of the Disperse Systems of Interacting Micro- and Nanoparticles]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2011, no. 5, pp. 119—125. (In Russian)
  10. Kharkhardin A.N., Topchiev A.I. Tyazhelyy beton s plotnym strukturnym karkasom zapolnitelya [Heavy Concrete with Dense Structural Framework of the Filliing Matter]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2001, no. 4, p. 54. (In Russian)
  11. Shurcliff William A. Super Solar Houses — Saunders’s 100% Solar, Low-Cost Designs. Brick House Publishing Company, 1983, 118 p.
  12. Falikman V.R. Nanomaterialy i nanotekhnologii v sovremennykh betonakh [Nanomaterials and Nanotechnologies in Modern Concretes]. ALITinform: Tsement. Beton. Sukhie smesi [ALITinform: Cement. Concrete. Dry Mixtures]. 2011, no. 5—6, pp. 34—48. (In Russian)
  13. Bogusevich V.A. Melkozernistyy beton na osnove tekhnogennykh peskov KMA dlya zimnego betonirovaniya: dissertatsiya … kandidata tekhicheskikh nauk [Fine-Grained Concrete Based on Technogenic Sands of Kursk Magnetic Anomaly for Winter Concreting: dissertation of the Candidate of Technical Sciences]. Belgorod, 2014, 172 p. (In Russian)
  14. Kozhukhova N.I., Bondarenko A.I., Strokova V.V. Zavisimost’ mekhanizma strukturoobrazovaniya ot khimicheskogo sostava kak klyuchevogo faktora vyazhushchey sistemy [Dependence of Structure Formation Mechanism from the Chemical Composition as a Key Factor of a Binding System]. Stroitel’nyy kompleks Rossii. Nauka. Obrazovanie. Praktika : materialy mezhdunarodnoy nauchno-prakticheskoy konferentsii, posvyashchennoy 50-letiyu Vostochno-Sibirskogo gosudarstvennogo universiteta tekhnologiy i upravleniya i stroitel’nogo fakul’teta (g. Ulan-Ude, 11—14 iyulya 2012 g.) [Construction Complex of Russia. Science. Education. Practice : Materials of the International Science and Practice Conference Dedicated to the 50th Anniversary of the Department (Ulan-Ude, July 11—14, 2012]. Ulan-Ude, VSGUTU Publ., 2012, pp. 162—164. (In Russian)
  15. Korolev S.A. O novom podkhode v matematicheskom prognozirovanii vodonepronitsaemosti tsementnykh kompozitov [On the New Approach to Mathematical Forecasting of Water Impermeability of Cement Composites]. Vestnik Yuzhno-Ural’skogo gosudarstvenno-go universiteta. Seriya: Stroitel’stvo i arkhitektura [Bulletin of the South Ural State University. Series: Construction and Architecture]. 2008, no. 25 (125), pp. 31—36. (In Russian)
  16. Betekktin V.I., Bakhtibaev A.N., Egorov E.A. Kontsentratsiya mikropor v tsementnom kamne i ikh raspredelenie po razmeram [Concentration of Micropores in Cement Stone and Their Distribution According to Size]. Tsement [Cement]. 1989, no. 10, pp. 8—10. (In Russian)
  17. Lyakhevich G.D., Zvonnik S.A., Lyakhevich G.A., Al’azzavi A.B.A. Teoreticheskie aspekty, eksperimental’nye issledovaniya i effektivnost’ ispol’zovaniya vysokoprochnykh betonov dlya mostovykh konstruktsiy [Theoretical Aspects, Experimental Investigations and Efficiency of the Use of High-Strength Concretes for Bridge Constructions]. Nauka i tekhnika [Science and Technology]. 2014, no. 5, pp. 48—54. (In Russian)
  18. Vlasov V.K. Mekhanizm povysheniya prochnosti betona pri vvedenii mikronapolnitelya [Mechanism of Increasing the Strength of Concrete when Introducing Microfiller]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1988, no. 10, pp. 9—11. (In Russian)
  19. Krasnyy I.M. O mekhanizme povysheniya prochnosti betona pri vvedenii mikronapolniteley [On the Mechanism of Increasing the Strength of Concrete when Introducing Microfiller]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 1987, no. 5, pp. 10—11. (In Russian)

Download

Results 1 - 4 of 4