Fire protection systems using clay-gypsum plaster in agriculture

Abstract

The article substantiates using a modified binder based on clay-gypsum as the main component of dispersed reinforced and plasters mixtures. The rheological properties of such mixtures and the performance characteristics of plaster coatings have been studied. It is proved that the use of clay-gypsum as part of a modified dispersed reinforced binder contributes to the creation of favorable environmental conditions and the formation of a comfortable climate inside the agricultural premises, as well as increases the degree of protection of structures in fire conditions. It is established that the technological properties of dispersed reinforced plaster mixtures depend primarily on the composition of the modified clay-gypsum binder and the consumption of mineral fiber and its length. The fiber diameter within 3.2-3.4 microns does not significantly affect the properties of mixtures. Dispersed reinforcement in the range from 1 to 5% slightly affects the average density of clay-gypsum mixtures and plaster coatings based on them. Dispersed reinforcement has the greatest effect on the mobility of the mortar plaster mixture and, to a lesser extent, on its thixotropy. The introduction of mineral fibers has a significant impact on the strength characteristics of plaster coatings, and, to the greatest extent, on the strength of bending, the compressive strength is most affected by the content of semi-aqueous gypsum in the composite binder. An increase in bending strength by 20% determines the greater resistance of plaster coatings to temperature influence and this allows us to state an increase in the duration of the functioning of clay plaster barriers when protecting load-bearing structures and insulation systems from the effects of high temperatures.