Integrated approach to the man-made waste use in the building materials production

Abstract

The article deals with the issues of the man-made waste use effectively in the building materials production, particular in non-autoclaved aerated concrete and granular aggregate. The basic properties of organic waste of flax bonfires and inorganic waste - ash from incineration of sewage sludge are determined. The optimal ratio selection of aggregates in non-autoclave aerated concrete is made. It is established that the use of flax bonfires makes it possible to partially or completely replace quartz sand in raw mixtures composition for producing aerated concrete. The dependence of the porous structure process on the temperature of aerated concrete mixture during the swelling period is investigated. Depending on a binder type and a technology, two methods of granulating materials, based on crushed flax and ash from wastewater sludge incineration are proposed.