Wall blocks based on the aggregates from plant wastes

Abstract

The article considers the possibility of using agricultural waste in the development of new building materials in the form of wall blocks. When selecting the compositions, the ideal fractions and ratios of straw to flax were determined, providing the forming of the densest frame of coarse and fine aggregates. Cement and lime were used as a binder. The effect of humidity on the durability and thermal conductivity of straw wall blocks and straw flax boon blocks were investigated. The conditions for the possible occurrence of mold on the block surface of aggregates were studied. According to the results of full-scale tests, the obtained dependencies of the temperature distribution during the coldest period of the winter season were analyzed and the high insulating ability of wall blocks was confirmed. The dependencies of the distribution of humidity over the thickness of the wall blocks after the end of the winter season testing operations were revealed. As a result of the research, a solution for the rational use of plant waste building wall blocks was proposed. The blocks can be applied to the construction of load-bearing and nonload-bearing walls in one-story buildings and multi-story frame construction when filling exterior wall openings.