纳米矿物纤维对砂浆早期收缩影响的研究

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英文篇名：Experimental study on early shrinkage effect of mortar with red powder 作者：刘锦程 ; 唐国峰 ; 崔志刚 ; 鲁恩龙 ; 巴恒静 英文作者：LIU Jincheng;TANG Guofeng;CUI Zhigang;LU Enlong;BA Hengjing;Heilongjiang Mudanjiang Pumped Storage Co.,Ltd.;Harbin Institute of Technology School of Civil Engineering; 关键词：收缩 ; 纳米矿物纤维 ; 强度 ; 孔结构 ; 显微结构 英文关键词：shrinkage;;nano mineral fiber;;strength;;pore structure;;microstructure 中文刊名：HLTF 英文刊名：Concrete 机构：黑龙江牡丹江抽水蓄能有限公司;哈尔滨工业大学土木工程学院; 出版日期：2017-03-27 出版单位：混凝土 年：2017 期：No.329 基金：牡丹江公司寒冷地区抽水蓄能电站混凝土面板阻裂技术研究与应用(MDJ-JSFW【2015】8号);; 水利部948项目资助(201418) 语种：中文; 页：HLTF201703028 页数：4 CN：03 ISSN：21-1259/TU 分类号：119-122

摘要

试验研究了不同砂浆配合比情况下纳米矿物纤维对砂浆性能的影响,包括对砂浆的早期自生收缩、干燥收缩和基本力学性能试验以及砂浆孔结构、显微结构的研究。试验结果表明:砂浆掺入纳米矿物纤维后能够提高砂浆的抗压强度;降低砂浆的收缩,在一定程度上补偿了收缩;细化砂浆的孔结构。因此,该研究为砂浆在水工混凝土工程的应用提供有力的理论指导。
        The effects of different mortar mix proportion on the performance of mortar with nano mineral fiber were studied,including the basic mechanics performance test,shrinkage test and the pore structure and microstructure of the mortar.The results show that nano mineral fiber can increase the compressive strength of mortar,reduce the shrinkage of mortar,compensate the shrinkage to a certain extent,and refine the pore structure of mortar.Through the analysis of pore structure and microstructure mechanism,it provides powerful theoretical guidance for the application of mortar in hydraulic concrete engineering.

引文

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