DRY ADHESIVE MIXES USING GRANITE ASPIRATION DUST

Abstract

In this study, the results of experimental research on adhesive mortars based on dry mixtures with the use of granite aspiration dust are givent and shown the possibility of the irindustrial release. In the conditions of shortage of energy resources, gradual exhaustion of natural raw materials, aggravation of environmental problems, an important direction in the production of building mixtures is the development of mixes with waste materials from various industries. Dry building mixtures are filled with industrial waste (granulated blast-furnace slag, fly ash, granite aspiration dust, etc.), have a number of positive features. They are characterized by low cost, their production is less energy-intensive, allows us to dispose of accumulated waste, to reduce harmful emissions into the atmosphere. Research on building mortars is carried out in the system of "portland cement - granite aspiration dust - sand - chemical additives". Based on the obtained data, experimental and statistical models of physical and mechanical properties of fresh and hardened mortar are constructed and analyzed, ways of optimizing their compositions and improving the properties of mortars are given. According to research results, rational compositions dry building mixtures for adhesive mortars are offered. It is established that the use of aspiration dust and named additives provide high standardised parameters dry building mixtures for adhesive  mixtures and mortars, including plasticity, adhesion strength, compressive strength and others at the low lewel of cement consumption. Fresh mortar mixtures have anprolongred workable life.