Identification of principles for calculating composition of heavy magnesia concrete

International Conference on Construction, Architecture and Technosphere Safety 2018

土木建筑工程

Averina, G.F.^1 ; Lazarevich, E.V.^1 ; Skopina, E.S.^1

Department of Building Materials and Products, South Ural State University, Lenin Avenue, 76, Chelyabinsk

454080, Russia^1

关键词: Alternative materials;    Binder components;    Correction factors;    Deep processing;    Heavy concrete;    Magnesium oxychloride cement;    Refractory industry;    Technical regulation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/451/1/012033/pdf
DOI  :  10.1088/1757-899X/451/1/012033

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The article suggests a method for obtaining heavy magnesium concrete on alternative materials, which are magnesium wastes of the mining and refractory industries. The advantages of using a magnesium oxychloride cement as a binder component of a concrete mixture are described. The suitability of the existing methodology for calculating the composition of heavy magnesium concrete has been analyzed and the need for its deep processing has been established. It is established that on the basis of magnesium oxychloride cement and aggregates from dolomite it is possible to obtain heavy concrete in terms of density and strength corresponding to the requirements of the current technical regulations. The need to correct a known method for calculating the composition of heavy concrete, namely the introduction of special correction factors, taking into account the specific features of the materials used, was identified. Based on the calculated formulation, a concrete mixture was obtained and its characteristics were studied.