Structure formation of aerated concrete containing waste coal combustion products generated in the thermal vortex power units

International Scientific and Research Conference on Knowledge-based Technologies in Development and Utilization of Mineral Resources

地球科学;矿业工程

Ivanov, A.I.^1 ; Stolboushkin, A. Yu^1 ; Temlyanstev, M.V.^1 ; Syromyasov, V.A.^1 ; Fomina, O.A.^1

Siberian State Industrial University, 42 Kirova Street, Novokuznetsk

654007, Russia^1

关键词: Acicular crystals;    Aerated concrete;    Ettringites;    Fly ash aggregates;    Operational properties;    Power units;    Structure formations;    Waste coal;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/45/1/012019/pdf
DOI  :  10.1088/1755-1315/45/1/012019

来源: IOP

【 摘 要 】

The results of fly ash research, generated in the process of waste coal combustion in the thermal vortex power units and used as an aggregate in aerated concrete, are provided. It is established that fly ash can be used in the production of cement or concrete with low loss on ignition (LOI). The permitted value of LOI in fly ash, affecting the structure formation and operational properties of aerated concrete, are defined. During non-autoclaved hardening of aerated concrete with fly ash aggregate and LOI not higher than 2%, the formation of acicular crystals of ettringite, reinforcing interporous partitions, takes place.