Refractory reinforcement of gas-based non-autoclave concrete

The article presents the main results of research of influence of mineral and polymer reinforcing additives on the structure and properties of cement binder.The experiment revealed that the introduction of fibers into the composition of non-autoclave aerated concrete contributes to the improvement of physical and technical parameters. Introduction of 1 % polymer fibers from the mass of cement binder leads to decrease in average density by 28 %, while the samples are characterized by increased resistance to deformation shrinkage. Addition of chrysotile suspension in amount of 1% leads to increase in the compressive strength of material by 53 % due to formation of a dispersed-reinforced mineral frame, which provides increased shrinkage resistance and increase in mechanical properties. Application of chrysotile fibers as a disperse additive contributes to improvement of structure formation of cement matrix and growth of new calcium hydrosilicate crystals.