Preparation of low-cost reactive powder concrete using waste steel fibres recycled from scrap tires

被引：1
|
作者：
Xu, Xun [1 ,2 ,3 ]
Chen, Qianwa [1 ]
Yu, Bo [2 ,3 ,4 ]
Liu, Qian [1 ]
Zhang, Ronghua [1 ]
Liu, Yinghu [1 ]
机构：
[1] Southwest Univ Sci & Technol, Sch Civil Engn & Architecture, Mianyang, Sichuan, Peoples R China
[2] Guangxi Univ, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning, Peoples R China
[3] Guangxi Univ, Guangxi Key Lab Disaster Prevent & Engn Safety, Nanning, Peoples R China
[4] Guangxi Univ, Sch Civil Engn & Architecture, Nanning, Peoples R China
来源：
ROAD MATERIALS AND PAVEMENT DESIGN | 2023年 / 24卷 / 05期
关键词：
Reactive powder concrete; waste steel fibres; fluidity; strength; low cost; HIGH-PERFORMANCE CONCRETE; MECHANICAL-PROPERTIES; MIX DESIGN; BEHAVIOR; REINFORCEMENT; STRENGTH; DURABILITY; PARAMETERS;
D O I：
10.1080/14680629.2022.2067073
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The application of reactive powder concrete (RPC) was not wide. One of the main problems was that copper-coated steel fibres (CSF) were expensive. In order to prepare low-cost RPC and resource utilisation of waste steel fibres recycled from scrap tires (WSF), this paper investigated the fluidity and strength of RPC containing WSF. The results indicated that the fluidity of RPC containing WSF was worse than that of RPC containing CSF. But there was not much difference in the strength of two kinds of RPC. In order to optimise performance of RPC containing WSF, the influence of mineral admixtures on the fluidity and strength of RPC was discussed. The results indicated that the optimum silica fume dosage was 20%, and the optimum fly ash and limestone powder dosages were 5%, respectively. Through this study, it was completely feasible to prepare RPC containing WSF. The use of WSF can reduce the cost of RPC.
引用
收藏
页码：1254 / 1272
页数：19
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