Open AccessIntegrated approach to the man-made waste use in the building materials production
Author(s) -
Olga Smirnova,
A. V. Krasova
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/937/4/042051
Subject(s) - incineration , waste management , aeration , raw material , autoclaved aerated concrete , environmental science , building material , sewage sludge , aggregate (composite) , incinerator bottom ash , bottom ash , materials science , sewage treatment , fly ash , engineering , composite material , chemistry , organic chemistry
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.