会员注册 会员登录  国资委专项基金建设平台  咨询热线:010-65761182 主办:建筑材料工业技术情报研究所 国家建材技术图书馆   借阅卡 联系我们
微信关注
2528bmi001_1T
1314web_logo
首页 新闻资讯 会议会展 视频培训 图书 期刊 外文期刊 报纸 标准 专利 成果 产品 企业 知识进厂
您所在的位置:首页>>论文报告
The effect of shape memory alloy, steel, and carbon fibres on fresh, mechanical, and electrical properties of self-compacting cementitious composites
【文件类型】 【文章页数】16 【会员操作】  
【文章作者】Dehghani, Ayoub;Aslani, Farhad
【文章摘要】      This paper presents the initial results of a two-phase research project for developing re-centring self-sensing cementitious composites. The focus here is on fresh, mechanical, and electrical properties of the developed cementitious composites. Nickel-titanium (NiTi) superelastic shape memory alloy (SMA) fibres and carbon fibres were used in this study. The performance of composites was studied based on the slump test, four-point bending test, flexural toughness, compression test, direct tensile test, and electrical conductivity test. The performance of SMA fibre-reinforced self-compacting cementitious composites was also compared with their steel fibre-reinforced counterparts. The addition of SMA and steel fibres slightly decreased the relative slump while carbon fibres reduced the flowability of mixture significantly. The increase in SMA and steel fibre content enhanced the flexural and tensile post-peak performance of composite, especially for specimens containing 1%-1.5% fibres by volume. Compressive strength was observed to decrease slightly by using SMA and steel fibres up to 1%, after which a reverse trend was detected. Adding SMA and steel fibres up to 1.5% did not affect the conductivity of composite considerably. On the contrast, carbon fibres even at low content (i.e., 0.1%) increased the conductivity of the composite substantially. The percolation transition zone detected for carbon fibre-reinforced cementitious composites showed an optimum carbon fibre dosage of 0.3% in terms of electrical conductivity.
【关 键 字】
【卷】112【ISSUE】【ISSUEID】815C0071    【文章期份】2020    【发布日期】2021/3/3 11:16:58    点击率:2    打印    关闭
首页 新闻资讯 会议会展 视频培训 图书 期刊 外文期刊 报纸 标准 专利 成果 产品 企业 知识进厂
网络市场部:010-65761182 网络技术部:010-51164639  传真:010-65761182 Email:service@chinabmi.com
在线服务 QQ:  
建筑材料工业技术情报研究所 国家建材技术图书馆
京ICP备06011358号-7
Copyright © 2004 chinabmi.com All rights reserved. 中国建材智网版权所有