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
Chemical stabilization of rammed earth using calcium carbide residue and fly ash
【文件类型】 【消费金额】2.4 【文章页数】8 【会员操作】  
【文章作者】Sumi Siddiqua;Priscila N.M. Barreto
【文章摘要】      Rammed earth has been considered as a sustainable construction technique that uses local soil to build structural walls. However, some natural soil do not have adequate strength and must be treated in order to improve their engineering properties. Chemical stabilization is a recent technique for this purpose and Portland cement is the most commonly used binder material. In the current study, industrial by products such as calcium carbide residue (CCR) and fly ash (FA) are investigated as binders instead of hauling them to landfills. Two different ratios of binders (CCR:FA ? 40:60 & CCR:FA = 60:40) at five different binder contents (3%, 6%, 9%, 12% & 15%) were utilized to investigate strength properties of a model soil. Based on the CCR and FA ratios, soil specimens were grouped as A and B. The unconfmed compressive strength (UCS) for both groups was tested after four different curing times (3,7,28 & 60 days). The UCS values of Group A specimens showed better performance at 12% binder content, whereas, Group B specimens showed an improved strength behavior at 15% binder content for all curing conditions. Also, results of SEM images for Group A specimens at 12% binder content indicated formation of a more integrated soil matrix with reduced soil voids and therefore, significant improvement of the soil strength.
【关 键 字】
【卷】169【ISSUE】Apr.30【ISSUEID】861C0056    【文章期份】2018    【发布日期】2018/8/28 16:26:09    点击率:0    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06002939号 京ICP备000046
Copyright © 2004 chinabmi.com All rights reserved. 中国建材智网版权所有