Deformability of dispersed reinforced expanded clay concrete under load

The article is devoted to the study of the deformation and destruction characteristics of expanded clay concrete dispersively reinforced with fibers. The article presents the test results of expanded clay concrete samples reinforced with high-modulus basalt fiber, as well as low-modulus synthetic micro- and macrofiber. The article considers the experimental data on the strength and energy characteristics of crack resistance of fiber expanded clay concrete samples, obtained experimentally in accordance with the provisions of GOST 29167-2021 «Concrete. Methods for determining crack resistance characteristics (fracture toughness) under static loading». It was found that reinforcement with low-modulus synthetic macrofibers can lead to an increase in the strength of expanded clay concrete, and a more significant one even in comparison with reinforcement with high-modulus basalt fibers. However, achieving this strength will be accompanied by significant deflections.