English
Русский 19-34 p.
One of the urgent tasks in the field of building materials science is to provide the construction complex with various types of environmentally friendly, reliable and energy-saving materials, the production and use of which will contribute to solving the problem of anthropogenic impact on the environment through the use of little-used technogenic raw materials. In the current conditions of import substitution, it is necessary to use the existing technological base to increase the volume of production of affordable, highly efficient, environmentally friendly traditional building materials, including using the existing raw materials base of the regions. In the market of building materials, structural wall materials of hydration hardening obtained using Portland cement as a binder are widely represented. However, silicate materials occupy not a small market share. It is known that pressed silicate materials of dense structure have fairly good strength indicators, but their thermophysical characteristics are low. A decrease in the average density of dense silicate products can be achieved by introducing various pore-forming components, such as hollow microspheres, into the raw material mass. The paper shows that the use of hollow aluminosilicate microspheres in the technology of obtaining silicate materials of dense structure based on unconventional aluminosilicate raw materials with energy-saving parameters of autoclave synthesis (water vapor pressure 0.4 MPa) and under conditions of heat and humidity treatment at atmospheric pressure allows to obtain a building composite with improved thermophysical and acoustic properties. Introduction to the raw mixture of aluminosilicate microspheres in the amount of 10-60 wt. % allows you to reduce the value of the average density index to 45%. The value of the compressive strength index of such samples, depending on the composition and hardening conditions, is 7-21.5 MPa at their average density of 920-1610 kg /m3, respectively.
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[2] Alfimova N.I., Pirieva S.Yu., Titenko A.A. Utilization of gypsum-bearing wastes in materials of the construction industry and other areas. Construction Materials and Products. 2021. 4 (1). P. 5 – 17. doi: 10.34031/2618-7183-2021-4-1-5-17
[3] Lesovik V., Tolstoy A., Fediuk R., Amran M., Azevedo A., Ali M., Ali Mosaberpanah M., Asaad M.A. Four-component high-strength polymineral binders. Construction and Building Materials. 2022. 316. P. 125934. DOI: https://doi.org/10.1016/j.conbuildmat.2021.125934
[4] Sheremet A.A., Elistratkin M.Yu., Sheremet E.O., Lesovik V.S., Shatalova S.V. Investigation of physico-mechanical properties of coarse-porous expanded clay concrete for three-layer 3D additive construction. Bulletin of the Belgorod State Technological University named after V.G. Shukhov. 2022. 11. P. 30 – 39. DOI: 10.34031/2071-7318-2022-7-11-30-39 (rus.)
[5] Volodchenko A.N., Strokova V.V. Development of scientific bases for the production of silicate autoclave materials using clay raw materials. Construction materials. 2018. 9. P. 25 – 31. DOI: https://doi.org/10.31659/0585 430H-2018-763-9-25-31 (rus.)
[6] Nelyubova V.V., Strokova V.V. Technology of silicate pressed materials. Overview of innovations for the development of production. Construction materials. 2019. 8. P. 6 – 13. doi: 10.31659/0585-430X-2019-773-8-6-13 (rus.)
[7] Volodchenko A.A. Influence of the hydrothermal treatment regime on the properties of silicate materials. Fundamental research. 2013. 6-6. P. 1333 – 1337. (rus.)
[8] Lesovik V., Volodchenko A., Fediuk R., Timokhin R., Mugahed Amran Y.H. Enhancing performances of clay masonry materials based on nanosize mine waste. Construction and Building Materials. 2021. 269. P. 121333. DOI:10.1016/j.conbuildmat.2020.121333
[9] Davidyuk A.N. Lightweight and ultralight concretes on vitreous aggregates for building enclosing structures .ALITinform: Cement. Concrete. Dry mixes. 2020. 1 (58). P. 16 – 21. (rus.)
[10] Sapelin N.A., Sapelin A.N. Influence of the structure of voids on the strength of heat-insulating silicate building materials. Construction materials. 2011. 5. P. 44 – 48. (rus.)
[11] Sagdaryan A.A., Zimakova G.A. Studying the properties of heavy concrete modified with an organomineral additive including ash microspheres. Proceedings of universities. Construction. 2012. 4. P. 26 – 31. (rus.)
[12] Sapelin A.N. Sorption properties of wall materials using microspheres. Academia. Architecture and construction. 2013. 3. P. 101 – 103. (rus.)
[13] Inozemtsev A.C., Korolev E.V. Features of rheological properties of high-strength lightweight concretes on hollow microspheres. Bulletin of MSUCE. 2013. 6. P. 100 – 108. (rus.)
[14] Oreshkin D.V. Lightweight and ultralight cement mortars for construction. Construction materials. 2010. 6. P. 34 – 37. (rus.)
[15] Semenov V.S., Oreshkin D.V., Rozovskaya T.A. Properties of lightweight masonry mortars with hollow glass microspheres and antifreeze additives. Industrial and civil construction. 2013. 3. P. 9 – 11. (rus.)
[16] Shahiron Shahidan, Eeydzah Aminuddin, Khairiyah Mohd Noor, Nurul Izzati Raihan Ramzi Hannan and Nur Amira Saiful Bahari. Potential of Hollow Glass Microsphere as Cement Replacement for Lightweight Foam Concrete on Thermal Insulation Performance. MATEC Web of Conferences. 2017. 103. P. 01014. DOI: 10.1051/matecconf/201710301014
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[19] Farhad Aslani, Ayoub Dehghani, Lining Wang. The effect of hollow glass microspheres, carbon nanofibers and activated carbon powder on mechanical and dry shrinkage performance of ultra-lightweight engineered cementitious composites. Construction and Building Materials. 2021. 280. P. 122415. DOI: https://doi.org/10.1016/j.conbuildmat.2021.122415
[20] Al-Gemeel A.N., Zhuge Y., Youssf O. Use of hollow glass microspheres and hybrid fibres to improve the mechanical properties of engineered cementitious composite. Construction and Building Materials. 2018. 171. P. 858 – 870. DOI: https://doi.org/10.1016/j.conbuildmat.2018.03.172
[21] Kumar N., Mireja S., Khandelwal V., Arun B., Manik G. Light-weight high-strength hollow glass microspheres and bamboo fiber based hybrid polypropylene composite: A strength analysis and morphological study. Composites Part B: Engineering. 2017. 109. P. 277 – 285. DOI: 10.1016/j.compositesb.2016.10.052
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[24] Kotlyar V.D., Kozlov A.V., Zhivotikov O.I., Kozlov G.A. Silicate brick based on ash microspheres and lime. Construction materials. 2018. 9. P. 17 – 21. DOI: https://doi.org/10.31659/0585-430X-2018-763-9-17-21 (rus.)
[25] Nihat Kabay, Nausad Miyan, Hakan Özkan. Utilization of pumice powder and glass microspheres in cement mortar using paste replacement methodology. Construction and Building Materials. 2021. 282. P. 122691. DOI: https://doi.org/10.1016/j.conbuildmat.2021.122691
[26] Nicholas R. Scott, Damian L. Stoddard, Matthew D. Nelms, Zachary Wallace, Ivy Turner, Lena Turner, Megan Croom, Katelyn Franklin, Samantha Sandifer, Mohammed S. Ali Al-fahdi, Tyler Butler, A.M. Rajendran. Experimental and computational characterization of glass microsphere-cementitious composites. Cement and Concrete Research. 2022. 152. P. 106671. DOI: https://doi.org/10.1016/j.cemconres.2021.106671
Volodchenko A.A. Efficient Silicate Composites of Dense Structure using hollow microspheres and Unconventional Aluminosilicate Raw Materials. Construction Materials and Products. 2023. 6 (2). P. 19 – 34. https://doi.org/10.58224/2618-7183-2023-6-2-19-34