Author:
Rybakov Vladimir,Seliverstov Anatoly,Petrov Denis,Smirnov Andrei,Volkova Anna
Abstract
The article presents the results of researched moisture indicators and strength characteristics of foam concrete with the various additives using. Foam concrete is produced both in a factory and on a construction site, has a density of 200 kg/m3 and is used in the innovative building structures type lightweight steel concrete structures (LSCS). Diatomite, microsilica, granite, perlite and vermiculite were used in sample production. As a part of the research, tests were carried out under the P-20 pressure to determine the ultimate limit load that the samples withstood. Then they were placed in a drying oven to determine the moisture mass removed from the samples during drying to a completely dry state, after which the moisture content values were set. The dependence between the moisture index and the strength characteristics of foam concrete is shown. It is established that samples of foam concrete with the perlite addition are the most durable. In addition, it is shown that the foam concrete with the vermiculite addition has the lowest moisture. It was determined that only for samples with the vermiculite addition, the correction coefficient depending on the moisture index differs in its value from the coefficients for the other samples, and, therefore, it had the greatest influence on the strength characteristics value of this series.
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