Lightweight Concretes on Hollow and Porous Aggregates


Дәйексөз келтіру

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Аннотация

One of the directions of development of concrete science is the combination of positive qualities of heavy and lightweight concretes. The problem of optimizing the structural properties of heavy concrete and the thermal properties of lightweight concrete is solved in a large number of scientific papers. In Russia, the most popular structural lightweight concretes are those based on expanded clay aggregate. Recently, there has been experience in reconstructing bridges made of lightweight concrete on hollow microspheres. Over the past 10 years, the possibilities for producing lightweight concrete with increased strength have improved significantly. The paper presents models demonstrating the features of the formation of the structure of lightweight concrete on hollow and porous aggregates. The advantages and limitations are described for each of the aggregates for obtaining lightweight concrete with a given average density and strength. The described models show that it is advisable to use porous filler to obtain high-strength lightweight concrete with an average density of more than 1600 kg/m3, and hollow filler at ρlb<1600 kg/m3. The thickness of the filler shell becomes the determining factor in achieving the required specific strength of lightweight concrete.

Толық мәтін

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Авторлар туралы

A. Inozemtsev

National Research Moscow State University of Civil Engineering

Хат алмасуға жауапты Автор.
Email: InozemcevAS@mgsu.ru

Candidate of Sciences (Engineering)

Ресей, Moscow

E. Korolev

Saint Petersburg State University of Architecture and Civil Engineering

Email: korolev@nocnt.ru

Doctor of Sciences (Engineering)

Ресей, Saint Petersburg

Әдебиет тізімі

  1. Popov N.A. Proektirovanie legkobetonnykh monolitnykh sten [Design of lightweight concrete monolithic walls]. Moscow: Gosstroyizdat. 1933. 210 p.
  2. Popov N.A. Novye vidy legkikh betonov [New types of lightweight concrete]. Moscow: Gosstroyizdat.1939. 196 p.
  3. Simonov M.Z. Beton i zhelezobeton na poristykh zapolnitelyakh [Concrete and reinforced concrete on porous aggregates]. Moscow: GILSIA. 1955. 256 p.
  4. Strongin N.S., Baulin D.K. Legkobetonnye konstruktsii krupnopanel’nykh zhilykh domov [Lightweight concrete structures of large-panel residential buildings]. Moscow: Stroyizdat. 1984. 184 p.
  5. Yakubovich M.A. Avtodorozhnye mosty iz legkogo zhelezobetona [Lightweight reinforced concrete road bridges]. Moscow: Autotransizdat. 1956. 68 p.
  6. Meshkauskas Yu.I. Konstruktivnyi keramzitobeton [Structural expanded clay concrete]. Moscow: Stroyizdat. 1977. 87 p.
  7. Baulin D.K. Mezhduetazhnye perekrytiya iz legkikh betonov [Interfloor slabs made of lightweight concrete]. Moscow: Stroyizdat. 1974. 216 p.
  8. Gorin V.M., Shiyanov L.P. Expanded clay and expanded clay concrete in housing construction and public utilities. Stroitel’nye Materialy [Construction Materials]. 2007. No. 10, pp. 98–100. (In Russian).
  9. Rossignolo J.A., Agnesini M.V.C., Morais J.A. Properties of high-performance LWAC for precast structures with Brazilian lightweight aggregates. Cement and Concrete Composites. 2003. Vol. 25. Iss. 1, pp. 77–82. https://doi.org/10.1016/S0958-9465(01)00046-4
  10. Patent RF 2355656. Betonnaya smes’ [Concrete mix]. Ponomarev A.N., Yudovich M.I. Declared 10.05.2007. Published 20.05.2009. (In Russian).
  11. Figovsky O.L., Beilin D.A., Ponomarev A.N. Successes in the application of nanotechnology in construction. Nanotechnology v stroitel’stve [Nanotechnology in construction]. 2012. Vol. 4. No. 3, pp. 6–22. (In Russian).
  12. Bazhenov Yu.M. Tekhnologiya betona [Concrete technology]. Moscow: ASV. 2015. 528 p.
  13. Zhang M.H., Gjorv O.E. Permeability of high-strength lightweight concrete. ACI Materials Journal. 1991. Vol. 88 (5), pp. 463–469. doi: 10.14359/2108
  14. Falikman V.R., Sorokin Yu.V., Goryachev O.M. High-strength lightweight concrete: technology and properties. Beton i zhelezobeton. 2005. No. 2, pp. 8–11. (In Russian).
  15. Nadesan Manu S., Dinakar P. Mechanical properties of sintered fly ash light weight aggregate concrete. 14th NCB International Seminar on Cement and Building Materials. 2015. https://doi.org/10.1016/j.matpr.2023.05.511
  16. Nadesan M.S., Dinakar P. Structural concrete using sintered flyash lightweight aggregate: A review. Construction and Building Materials. 2017. Vol. 154, pp. 928–944. https://doi.org/10.1016/j.conbuildmat.2017.08.005
  17. Cerny V., Kocianova M., Drochytka R. Possibilities of lightweight high strength concrete production from sintered fly ash aggregate. Proccedia Engineering. 2017. Vol. 195, pp. 9–16. https://doi.org/10.1016/j.proeng.2017.04.517
  18. Mehta P.K., Monteiro P.J.M. Concrete: microstructure, properties, and materials. New York: McGraw-Hill. 2006. pp. 1–7.
  19. Inozemtsev A.S., Korolev E.V. High-strength lightweight concretes [Vysokoprochnye legkie betony]. Saint Petersburg: SPbGASU. 2022. 192 p.
  20. Makridin N.I., Maksimova I.N. Artificial porous fillers and lightweight concrete [Iskusstvennye poristye zapolniteli i legkie betony]. Penza: PSUAS. 2013. 324 p.
  21. Petrov V.P., Makridin N.I., Yarmakovsky V.N. Poristye zapolniteli i legkie betony. Materialovedenie. Tekhnologiya proizvodstva [Porous fillers and lightweight concrete. Materials Science. Production technology]. Samara: SGASU, ASV. 2009. 436 p.
  22. Birger I.A., Shorr B.F., Iosilevich G.B. Raschet na prochnost’ detalei mashin [Strength calculation of machine parts]. Moscow: Mechanical engineering. 1993. 640 p.
  23. Bobryshev A.N., Erofeev V.T., Zharin D.E. Osnovy formirovaniya struktury kompozitsionnykh materialov [Fundamentals of formation of the structure of composite materials]. Saransk: Moscow State University named after N.P. Ogarev. 2012. 120 p.

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2. Fig. 1. Examples of the use of structural lightweight concrete in the USSR [5]: a – monolithic arched pipe bridge expanded made of spongolite concrete (1952); b – precast slab bridge made of pumice-reinforced concrete (1953)

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3. Fig. 2. Current achievements in the development of lightweight concrete with increased strength [19]

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4. Fig. 3. General scheme of the grain of lightweight hollow (left) and porous (right) aggregate

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5. Fig. 4. Theoretical density of lightweight concrete on hollow (solid line) and porous aggregate (dashed line) with varying

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6. Fig. 5. Theoretical strength of lightweight concrete on hollow (solid line) and porous aggregate (dashed line) with varying  

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7. Fig. 6. Dependences of the strength and density of lightweight concrete on the aggregate content at t/Rf =0,01 (a) and t/Rf =0,1 (b)

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8. Fig. 7. Specific strength of lightweight concrete on hollow (solid line) and porous aggregate (dashed line) with varying t/Rf

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