Use of wastes of rubble crushing in self-compacting concrete

Инженерно-строительный журнал

关键词: self-compacting concrete;    waste of rubble crushing;    superplasticizer;    filler;    strength;   

DOI  :  10.5862/MCE.42.4

来源: DOAJ

【 摘 要 】

Use of wastes of rubble crushing in the concrete structure allows improving physical and mechanical properties and resolving the issue of recycling. Their use as fillers in self- compacting concrete will reduce costs and improve the economic attractiveness of this material. In the course of the research the compounds of self-compacting concrete with the use of waste powder of rubble crushing were obtained.For such concretes the optimal superplasticizer, featuring additional stabilizing effect that allows obtaining a homogeneous concrete mix, was selected. The results of the study show the relation between cement consumption and viscosity of concrete mix; the dependence of the superplasticizer consumption on the cement type. Application of waste powder can reduce the consumption of silica fume in the composition of self-compacting concrete and achieve strength 58,5 MPa at a rate of 400 kg /m3.

【 授权许可】

Unknown