Investigations of the influence of organic aggregate on physical mechanical and adhesion properties of sulfur-containing arbolite

Abstract

The main issue of this study is to investigate the effect of the porous structure of organic aggregate on cement stone and on the nature of the contact zone. As it is known, porous aggregate draws away some of the moisture from the adjacent cement stone layers, which promotes their compaction. In turn, the contact layers of the sulfur-containing binder also undergo changes. Also in the work, sulfur and its derivatives are used as an additive for chemical treatment. It is known that sulfur itself is a strong reducing agent, so it can affect the morphology and chemical composition of the surface of the organic aggregate of sulfur-containing arbolites. It was found that the highest index of efficiency coefficient equal to 1.02 and 1.01 have samples of sulfur-containing arbolite based on shredded cane and cotton stalks.  The study of the structure of contact zones of sulfur-containing binder with shredded mercerized cane on samples from the binder dough with inclusion of shredded cane fiber showed that it has a dense and strong binder shell with a width of 35-60 μm. The results confirm that mercerization of cellulosic organic aggregates of sulfur-containing arbolites increases its adhesion ability. The obtained results of the study can be used for the manufacture of wall materials for low-rise construction.