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A platform for research: civil engineering, architecture and urbanism
Fast-Hardening Slag-Alkaline Heat-Resistant Aerated Concrete of Increased Heat Resistance with Additives of Fly Ash of Novocherkassk SDPP
https://orcid.org/http://orcid.org/0000-0002-3012-0383
https://orcid.org/http://orcid.org/0000-0003-4261-9840
https://orcid.org/http://orcid.org/0000-0001-7157-2143
https://orcid.org/http://orcid.org/0000-0003-3138-7722
https://orcid.org/http://orcid.org/0000-0001-9397-0687
https://orcid.org/http://orcid.org/0000-0003-4967-7226
https://orcid.org/http://orcid.org/0000-0003-2846-2437
One suggests technology for the production of quick-hardening, heat-resistant aerated concrete with an application temperature of up to 600 °C. To improve the strength and heat resistance of aerated concrete, liquid glass was used as a binder and—Cherepovets granulated blast-furnace slag as a filler hardener. Increasing the reactivity of liquid glass and its plasticity was carried out by reducing the silicate modulus of liquid glass and introducing sodium hydroxide. The addition of fly ash up to 50% of the mass of the slag in the composition of aerated concrete allowed to reduce the cost of concrete and reduce its density while maintaining sufficient strength. To simplify the technological process, hydrogen peroxide was used as a gasifier instead of aluminum powder. As a result of the thermal reaction of the interaction of liquid glass, granulated blast-furnace slag, and hydrogen peroxide the aerated concrete is self-heating, bulking, and hardening. Such concrete allows not only to obtain casings and monolithic areas comparable in strength to autoclaved concrete but also to carry out repair and reconstruction work with thermal insulation. Aerated concrete can be made in a low-mechanized section and retain its properties in a humid environment when the furnace is not in operation.
Fast-Hardening Slag-Alkaline Heat-Resistant Aerated Concrete of Increased Heat Resistance with Additives of Fly Ash of Novocherkassk SDPP
https://orcid.org/http://orcid.org/0000-0002-3012-0383
https://orcid.org/http://orcid.org/0000-0003-4261-9840
https://orcid.org/http://orcid.org/0000-0001-7157-2143
https://orcid.org/http://orcid.org/0000-0003-3138-7722
https://orcid.org/http://orcid.org/0000-0001-9397-0687
https://orcid.org/http://orcid.org/0000-0003-4967-7226
https://orcid.org/http://orcid.org/0000-0003-2846-2437
One suggests technology for the production of quick-hardening, heat-resistant aerated concrete with an application temperature of up to 600 °C. To improve the strength and heat resistance of aerated concrete, liquid glass was used as a binder and—Cherepovets granulated blast-furnace slag as a filler hardener. Increasing the reactivity of liquid glass and its plasticity was carried out by reducing the silicate modulus of liquid glass and introducing sodium hydroxide. The addition of fly ash up to 50% of the mass of the slag in the composition of aerated concrete allowed to reduce the cost of concrete and reduce its density while maintaining sufficient strength. To simplify the technological process, hydrogen peroxide was used as a gasifier instead of aluminum powder. As a result of the thermal reaction of the interaction of liquid glass, granulated blast-furnace slag, and hydrogen peroxide the aerated concrete is self-heating, bulking, and hardening. Such concrete allows not only to obtain casings and monolithic areas comparable in strength to autoclaved concrete but also to carry out repair and reconstruction work with thermal insulation. Aerated concrete can be made in a low-mechanized section and retain its properties in a humid environment when the furnace is not in operation.
Fast-Hardening Slag-Alkaline Heat-Resistant Aerated Concrete of Increased Heat Resistance with Additives of Fly Ash of Novocherkassk SDPP
https://orcid.org/http://orcid.org/0000-0002-3012-0383
https://orcid.org/http://orcid.org/0000-0003-4261-9840
https://orcid.org/http://orcid.org/0000-0001-7157-2143
https://orcid.org/http://orcid.org/0000-0003-3138-7722
https://orcid.org/http://orcid.org/0000-0001-9397-0687
https://orcid.org/http://orcid.org/0000-0003-4967-7226
https://orcid.org/http://orcid.org/0000-0003-2846-2437
One suggests technology for the production of quick-hardening, heat-resistant aerated concrete with an application temperature of up to 600 °C. To improve the strength and heat resistance of aerated concrete, liquid glass was used as a binder and—Cherepovets granulated blast-furnace slag as a filler hardener. Increasing the reactivity of liquid glass and its plasticity was carried out by reducing the silicate modulus of liquid glass and introducing sodium hydroxide. The addition of fly ash up to 50% of the mass of the slag in the composition of aerated concrete allowed to reduce the cost of concrete and reduce its density while maintaining sufficient strength. To simplify the technological process, hydrogen peroxide was used as a gasifier instead of aluminum powder. As a result of the thermal reaction of the interaction of liquid glass, granulated blast-furnace slag, and hydrogen peroxide the aerated concrete is self-heating, bulking, and hardening. Such concrete allows not only to obtain casings and monolithic areas comparable in strength to autoclaved concrete but also to carry out repair and reconstruction work with thermal insulation. Aerated concrete can be made in a low-mechanized section and retain its properties in a humid environment when the furnace is not in operation.
Fast-Hardening Slag-Alkaline Heat-Resistant Aerated Concrete of Increased Heat Resistance with Additives of Fly Ash of Novocherkassk SDPP
Lecture Notes in Civil Engineering
Vatin, Nikolai (editor) / Pakhomova, Ekaterina Gennadyevna (editor) / Kukaras, Danijel (editor) / Emelianov, Sergey (author) / Bulgakov, Alexey (author) / Otto, Jens (author) / Avakyan, Arsen (author) / Protsenko, Kirill (author) / Skibin, Gennadiy (author) / Mikheev, Alexander (author)
2022-10-14
16 pages
Article/Chapter (Book)
Electronic Resource
English
Manufacture technology for heat-resistant mineral-slag aerated concrete brick
| European Patent Office | 2015