NON-AUTOCLAVE DRY MIX GAS CONCRETE

Abstract

Saving fuel and energy resources, rapid construction of new housing and reconstruction of damaged ones, increasing the efficiency of thermal insulation of buildings and structures, and introducing energy-efficient materials are priority areas in the development of the construction industry. One of the effective building materials is structural and heat-insulating gas concrete. In practice, products made of structural and heat-insulating gas concrete of autoclave hardening have found wide application, the production of which is characterized by high energy consumption, metal consumption, and a large production area. The relevance of this work is that the preparation of non-autoclave gas concrete can be carried out from pre-prepared dry mixes. The advantages of dry building mixes for aerated concrete are high dosing accuracy and a high degree of homogenization of components, which ensure the stability of technological and operational-technical properties of the material. The use of dry building mixtures for the production of structural and heat-insulating gas concrete can be promising in low-rise monolithic construction. Monolithic housing construction is most appropriate in rural areas. Dry building mixtures for gas concrete include a binder, a gas former and regulators of the structure formation of gas concrete. Most often, the following are used to obtain gas concrete: binder - Portland cement grade 500; gas former - aluminium powder PAP 1, 2, PAK-3. Based on the conducted research, non-autoclaved gas concrete D 600 with stable density and strength indicators was obtained