纤维自密实轻骨料混凝土抗渗性试验研究

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英文篇名：Experimental study on impermeability of fiber self-compacting lightw eight aggregate concrete 作者：董健苗 ; 殷玲 ; 马发林 ; 王亚东 ; 杜亚聪 ; 陆明飞 英文作者：DONG Jianmiao;YIN Ling;MA Falin;WANG Yadong;DU Yacong;LU Mingfei;Guangxi University of Science and Technology; 关键词：自密实轻骨料混凝土 ; 剑麻纤维 ; 聚丙烯纤维 ; 抗渗性 英文关键词：self-compacting lightweight aggregate concrete;;sisal fiber;;polypropylene fiber;;impermeability 中文刊名：HLTF 英文刊名：Concrete 机构：广西科技大学; 出版日期：2019-02-27 出版单位：混凝土 年：2019 期：No.352 基金：广西教育厅科学基金项目(YB2014199);; 广西高校中青年骨干教师培养计划项目 语种：中文; 页：HLTF201902014 页数：4 CN：02 ISSN：21-1259/TU 分类号：73-75+79

摘要

将长度为10 mm,掺量为2 kg/m~3的剑麻纤维、0.8 kg/m~3的聚丙烯纤维分别掺加到强度等级为C40的自密实轻骨料混凝土进行抗渗试验研究,测定其渗水高度及抗渗等级,并进行扫描电镜微观试验。试验结果表明,掺加剑麻纤维的自密实轻骨料混凝土抗渗等级为P10,掺加聚丙烯纤维的自密实轻骨料混凝土抗渗等级为P12,均达到抗渗混凝土要求。与空白样对比,掺加剑麻纤维的自密实轻骨料混凝土渗水高度增加45.6%,掺加聚丙烯纤维的自密实轻骨料混凝土渗水高度减小26%。
        Sisal fiber or polypropylene fiberwith a length of 10 mm and content of 2.0 kg/m~3 or 0.8 kg/m~3 were added to self-compacting lightweight aggregate concrete with strength grade C40 for impermeability test study,the seepage height and impermeability grade were measured and subjected to scanning electron microscopy.The results showed that the impermeability grade of self-compacting lightweight aggregate concrete with sisal fiber was P10,the impermeability grade of self-compacting lightweight aggregate concrete with polypropylene fiber was P12,they all meet the requirements of anti-seepage concrete.Compared with the blank sample,the height of the self-compacting lightweight aggregate concrete with sisal fiber increased by 45.6%,the height of the self-compacting lightweight aggregate concrete with polypropylene fiber reduced by 26%.

引文

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