Load-bearing capacity and deformability of expanded clay concrete elements and structures on multicomponent binder

Abstract

The main materials and experimental samples used in the studies and the results of their analysis are presented in the article. In the manufacture of samples, elements and structures, the developed technology of low-cement lime-containing concretes was used. This technology is based on the use of a four-component binder, which, in addition to portland cement and ground quicklime, also includes an active mineral additive (fly ash) and gypsum. The main compositions of expanded clay concrete on multicomponent binder according to design strength for manufacture of experimental batch of bent elements, wall blocks in full size and fragments of wall panels are presented. Results of experimental studies of bearing capacity, deformability and crack resistance of bent elements with dimensions 100x150x2000 mm made of expanded clay concrete on multicomponent binder and quartz sand with reinforcement with diameter of 10 and 12 mm were obtained.

The results of experimental studies of bearing capacity and deformability of fragments of wall panels made of expanded clay concrete on multicomponent binder and quartz sand with grid reinforcement with diameter of 6 mm were obtained. The results of investigation of bearing capacity, deformability and crack resistance of wall blocks in natural value of corresponding series 87 of expanded clay concrete on multicomponent binding and quartz sand are given. Comparative analysis of experimental data with theoretical data when considering issues of strength and deformability of the examined elements and structures made of expanded clay concrete on a multicomponent binder is shown. The possibility of using expanded clay concrete with a multicomponent binder in elements and structures of reduced material capacity and required durability has been proved with the simultaneous development of resource-saving technologies for their manufacture.