CONSTRUCTION and ARCHITECTURE IN AZERBAIJAN

Summary

In this article, referring to the standards for concrete fillers, it is shown that when determining the frost resistance grade of the same material both by the freeze-thaw method and by the accelerated hardening method, the same results are obtained. However, studies have shown that the frost resistance indicators of fillers for concrete made of intrusive, sedimentary and metamorphic rocks when determined by both methods provided for by the standard and when assessed give the same result for grade F100. Determining the frost resistance grade of fillers from effusive rocks by both methods gives different results. When obtaining the frost resistance grade F100 by the freeze-thaw method for a filler made of effusive rocks, the accelerated method yields the frost resistance grade F50. It is shown that this discrepancy may be due to the presence of glass phase and amorphous silicon tetroxide in fillers from effusive rocks.