Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ELECTROMAGNETIC ACTIVATION OF WATER-CEMENT PASTES AND FOAM CONCRETES
The authors argue that the experts believe that further development of production and use of non-autoclaved foam concretes can be implemented through introduction of methods and technologies that provide for the strength characteristics of foam concretes similar to or exceeding those of autoclaved aerocretes. There are many methods and compositions that enhance the strength of non-autoclaved foam concretes. The results of activation of raw materials and the foam mixture in electromagnetic devices demonstrate that an increase in the treatment time of water-cement pastes from 10 to 100 seconds leads to a shift of distribution curves toward a bigger number of small fractions of cement. The authors have discovered that the activation can increase the surface area of solid components of the foam concrete mix by 25 - 30 %, the binding activity - to 35 %, and the reactivity of the filler is also increased. Their interaction involves formation of a more durable material. It also improves the quality of macro- and microstructures of foam concretes due to more intensive homogenization of components. This phenomenon is evidenced by the 5 - 8 % foam concrete density reduction and increase in the value of the structural quality coefficient of foam concretes by 40 - 60 %. It is very important to improve the quality of products and to meet the growing demand in the market of construction materials.
ELECTROMAGNETIC ACTIVATION OF WATER-CEMENT PASTES AND FOAM CONCRETES
The authors argue that the experts believe that further development of production and use of non-autoclaved foam concretes can be implemented through introduction of methods and technologies that provide for the strength characteristics of foam concretes similar to or exceeding those of autoclaved aerocretes. There are many methods and compositions that enhance the strength of non-autoclaved foam concretes. The results of activation of raw materials and the foam mixture in electromagnetic devices demonstrate that an increase in the treatment time of water-cement pastes from 10 to 100 seconds leads to a shift of distribution curves toward a bigger number of small fractions of cement. The authors have discovered that the activation can increase the surface area of solid components of the foam concrete mix by 25 - 30 %, the binding activity - to 35 %, and the reactivity of the filler is also increased. Their interaction involves formation of a more durable material. It also improves the quality of macro- and microstructures of foam concretes due to more intensive homogenization of components. This phenomenon is evidenced by the 5 - 8 % foam concrete density reduction and increase in the value of the structural quality coefficient of foam concretes by 40 - 60 %. It is very important to improve the quality of products and to meet the growing demand in the market of construction materials.
ELECTROMAGNETIC ACTIVATION OF WATER-CEMENT PASTES AND FOAM CONCRETES
Torlina Elena Anatol'evna (Autor:in) / Shuyskiy Anatoliy Ivanovich (Autor:in) / Tkachenko Gennadiy Alekseevich (Autor:in) / Yavruyan Khungianos Stepanovich (Autor:in) / Filonov Igor' Aleksandrovich (Autor:in) / Fesenko Dmitriy Aleksandrovich (Autor:in)
2012
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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