Browse

The work is devoted to the study of fuel ash as components of composite cements and building mixtures based on them. The use of bottom ash as raw material is an urgent problem. On the one hand, their use in production solves the issue of creating resource and energy saving technologies and increasing the efficiency of cements and concretes. The use of ash makes it possible to improve the properties of cements, bricks, products from aerated and heavy concrete, light aggregates, and the quality of road construction....

As a result of the operation of thermal power plants used solid hydrocarbon fuel, ash and slag waste (ASW) is formed. ASW is a finely dispersed mineral material remaining as a result of burning brown and hard coal. The involvement of ASW in industrial turnover is one of the most effective ways to solve the issue of energy and resource conservation. The share of involvement of these types of waste in economic turnover in the European Union is about 98%, in China about 80%, and in Russia this indicator does not exce...

Solutions to the environmental problems associated with the burning of coal in power plants are in poor condition. One of the main problems is the continuous growth and accumulation of ash and slag waste (ASW). Ash and slag waste is a major source of raw materials for various industries. However, the degree of use of ash and slag waste at Russian thermal power plants does not exceed 2 million tons / year, with an annual output of 25-28 million tons. Modern methods of enrichment and processing allow the use of ash ...

In the article synthesis of structures of disperse systems on the basis of gypsum is considered. Such systems are necessary for receiving materials which exclude burning of raw materials on the basis of gypsum waste for the receiving binders. For them use a certain composition of raw mix. Selection of structure of compositions allows to increase properties of materials. Such materials are characterized by high strength. The process of formation of structure of a gypsum which is received by hyper pressing is studie...