Fly Ash-based Geopolymer Binders: Perspective Materials for Sustainable Building

4th International Conference on Safety Problems of Civil Engineering Critical Infrastructures

土木建筑工程

Domanskaya, I.K.^1 ; Yekimovskaya, A.^1

Department of Building Materials, Ural Federal University, Mira Street 19, Ekaterinburg

620002, Russia^1

关键词: Alkaline activators;    Conditions of hardening;    Fine-grained concretes;    Geopolymer binders;    strength;    Water-resistances;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/481/1/012049/pdf
DOI  :  10.1088/1757-899X/481/1/012049

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The possibility of obtaining a geopolymer binder on the basis of fly ash of the Reft thermal power station and fine-grained concrete on its basis is investigated. It is shown that the chemical-mineral composition and properties of this fly ash allow it to be used as an aluminosilicate component without additional grinding and introduction of mineral additives. In this case, the alkaline activator is an industrial sodium liquid glass diluted to a density of 1200 kg/m3. The dependences of the strength of geopolymer binder and fine-grained concrete on its basis on the conditions of hardening, aggregate consumption and the sequence of mixing of components are established. Based on the fly-ash geopolimer and the screenings crushing granite dropout picked up the fine-grained concrete class B35.