Influence of aggregate type on thermal resistance and 4 % load stress temperature of heat-resistant lime-slag concrete

International Conference on Construction, Architecture and Technosphere Safety 2018

土木建筑工程

Akhtyamov, R.R.^1,2 ; Trofimov, B.Ya.^1 ; Bogusevich, D.V.^1,2

Institute of Architecture and Construction, Building Materials and Products, South Ural State University, Lenin Avenue, 76, Chelyabinsk

454080, Russia^1

UralNIIstrom, 5/2, Stalevarov street, Chelyabinsk

454047, Russia^2

关键词: Aggregate type;    Aluminothermic;    Aluminous slags;    Development directions;    Ferrotitanium;    Heat resistant;    Operating temperature;    Slag concrete;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/451/1/012016/pdf
DOI  :  10.1088/1757-899X/451/1/012016

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

A most promising development direction of heat-resistant concrete is the development of heat-resistant concretes based on lime-slag binder with highly-aluminous slag aggregates. One of the main process development directions of heat-resistant concrete for products with increased heat resistance is the lowering of the contents of expensive components: aggregates, binders, hardeners and powdered additives by various industrial wastes. Such replacement could significantly reduce the prime cost of heat-resistant concretes, and in some cases increase their operating temperature and durability. Based on experimental studies, efficient compositions of heat-resistant lime-slag concrete has been developed, based on chamotte, slag from aluminothermic ferrochromium and ferrotitanium process, with 1100-1300°C operating temperature.