ЗОЛА-УНОСА ПРИ ПРОИЗВОДСТВЕ БЕТОНОВ РАЗЛИЧНОГО НАЗНАЧЕНИЯ И СУХИХ СТРОИТЕЛЬНЫХ СМЕСЕЙ

Abstract

In recent years, the search for and use of alternative binder building materials has become the subject of many studies both in Russia and abroad. This is due to the trend to reduce the harmful effects of the production of building materials and to more rational use of available raw materials. Fly ash, being a waste of the energy industry, accumulated in large volumes in ash dumps throughout Russia, is a promising material for use in the production of cement-containing building materials and products. The article provides a review of scientific literature and patents on the use of fly ash in various types of concrete, as well as in the production of dry building mixtures. On the basis of the review, positive and negative effects from the introduction of fly ash additives on the properties of concrete, ways to increase the efficiency of using the considered waste in the production of building materials were identified. The experimental part of the work presents the results of determining the strength and water resistance of heavy concrete samples with partial replacement of cement with fly ash obtained by burning coal at a new thermal power plant in the Kaliningrad region.