摘要
针对冻融循环后水泥基材料力学性能劣化问题,拟选取水胶比、玄武岩纤维掺量作为试验变量,对玄武岩纤维水泥基复合材料(BFCC)进行基本力学性能试验和快速冻融试验。结果表明:BFCC抗压强度和抗折强度随水胶比的增加而呈现降低的趋势,随纤维掺量的增加而呈现先增加后降低的变化规律;冻融循环后,BFCC质量损失率变化不大,相对动弹性模量逐渐降低;其抗冻性随着水胶比的增加而逐渐降低,随纤维掺量的增加而呈现先提高后下降的规律。
In this paper,the basic mechanical properties and rapid freezing and thawing tests of basalt fiber cement-based composites(BFCC)were carried out by selecting water-binder ratio and basalt fiber content as test variables.The results show that the compressive strength and flexural strength of BFCC decrease with increase of water-binder ratio,or increase first and then decrease with the increase of fiber content.After cycle of freezing and thawing,the mass loss rate of BFCC has little change,and the relative dynamic modulus of BFCC decreases gradually.The frost resistance decreases with the increase of water-binder ratio and increases first,then decreases with the increase of fiber content.
作者
张淑艳
雒祥虎
张如一
闫佳琦
Zhang Shuyan;Luo Xianghu;Zhang Rui;Yan Jiaqi(School of Civil Engineering,Inner Mongolia University of Technology,Hohhot,Inner Mongolia 010051,China)
出处
《黑龙江工业学院学报（综合版）》
2021年第2期93-97,共5页
Journal of Heilongjiang University of Technology(Comprehensive Edition)
基金
内蒙古工业大学大学生创新实验计划项目“冻融条件下BFCC力学性能及微观特征研究”(项目编号:2019063006)。
关键词
玄武岩水泥基复合材料
力学性能
冻融循环
basalt cement-based composite materials
mechanical properties
cycle of freezing and thawing
