相变微胶囊对砂浆物理力学性能的影响  

Influence of Phase Change Micro-Capsule on the Physical Mechanical Properties of Mortar

作　　者：欧志华[1,2] 肖毅 曹晖[1] 蓝凡媛 OU Zhihua;XIAO Yi;CAO Hui;LAN Fanyuan(College of Civil Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China;College of Civil Engineering,Hunan University of Science and Technology,Xiangtan Hunan 411201,China)

机构地区：[1]湖南工业大学土木工程学院,湖南株洲412007 [2]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《湖南工业大学学报》2018年第3期37-41,共5页Journal of Hunan University of Technology

基　　金：湖南省建设厅科技计划基金资助项目(C10108);湖南省建筑节能与环境控制关键技术协同创新中心资助项目

摘　　要：相变储能砂浆有利于房屋建筑室内环境的温度稳定,对建筑节能具有重要意义。对相变微胶囊掺量变化与砂浆的流动度、表观密度、抗折强度和抗压强度变化的关系进行了研究。研究结果表明,随着相变微胶囊掺量的增加,砂浆的流动度减小,表观密度、抗折强度和抗压强度均呈现出先增大后减小的变化趋势。相变微胶囊取代石英砂的最佳质量分数为10%,此时,砂浆的抗压强度较不掺相变微胶囊的砂浆增加了37.1%。Phase change energy storage mortar helps to stabilize the temperature of the indoor environment, which is of great signiflcance to the realization of building energy conservation. A study has been made of the relationship between the content of phase change micro-capsules and the fluidity, apparent density, flexural strength and compressive strength of the mortar. The results show that with the increase of phase change micro-capsule dosage, the fluidity of the mortar decreases, and the apparent density, flexural strength and compressive strength all undergo an initial increase and a subsequent decrease. The optimum mass fraction of the phase change micro-capsule to replace the quartz sand is 10%, at which point, the compressive strength of the mortar increases by 37.1%, compared with that of the mortar without the phase change micro-capsule.

关 键 词：相变微胶囊 砂浆 流动度 表观密度 抗折强度 抗压强度 

分 类 号：TU599[建筑科学—建筑技术科学]