Effect of alternative fibre‐like secondary raw materials utilization by the preparation of the aerated autoclaved concrete

Abstract

AbstractThis article is dedicated to the possibilities of using new alternative raw materials in the structure of aerated autoclaved concrete. Primary sources of raw materials are exhaustible and their price is increasing. According to the ecological requirements of the European Union, it is necessary to find many more ecological ways how to produce building materials. Production of aerated autoclaved concrete is for such utilization potentially suitable. It is well known, that the partial replacement of siliceous constituents is possible. This article is focused on the use of dispersed siliceous waste material with fiber‐like grains (e.g., waste fibers from the production of reinforcement fabrics and glass). The input raw materials are standard aerated autoclaved concrete based (cement, lime, silica sand). As an aerating agent was the aluminum powder. This article is dedicated to the determination of basic physical‐mechanical properties and a suitable amount of filler determination. The amount was determined on the basis of the constructive quality coefficient. It seems that partial replacement of the siliceous constituent by fiber‐like materials leads to improvement of properties.