摘要
与再生骨料生产公司合作,按照50%再生骨料掺入量配制PVA纤维再生混凝土,从骨料级配、水灰比及用水量探究其配合比,制备标准试块测试其材料强度可达C40。对掺入不同长度以及掺入量的PVA纤维再生混凝土进行抗冻性能试验,结果表明,PVA纤维的加入可以适当提高再生混凝土的抗冻性能,能够有效降低抗冻性能下降率,以6 mm长、掺量为2%的PVA纤维效果为最佳。
This paper studies the mix design and frost resistance of PVA fiber recycled concrete.PVA fiber recycled concrete is prepared with 50%recycled aggregate content and the mix proportion is explored from aggregate gradation,water cement ratio and water consumption.Standard test blocks are prepared to test the strength and the frost resistance of PVA fiber recycled concrete with different lengths and dosages is tested.The results show that the addition of PVA fiber can properly improve the frost resistance,and effectively reduce the decline rate of frost resistance.The effect of PVA fiber with 6 mm length and 2%content is the best.
作者
高立
朱方之
左工
李泽良
GAO Li;ZHU Fang-zhi;ZUO Gong;LI Ze-liang(School of Civil Engineering and Architecture,Suqian College,Suqian,Jiangsu,223800,China)
出处
《建材技术与应用》
2019年第4期18-21,共4页
Research and Application of Building Materials
基金
宿迁市指导性科技计划项目(Z2018101)
宿迁市指导性科技计划项目(Z2018103)
关键词
PVA纤维
再生骨料
再生混凝土
配合比
抗冻性
动弹性模量
PVA fiber
recycled aggregate
recycled concrete
mix ratio
frost resistance
dynamic elastic modulus
作者简介
高立(1990-),男,山东菏泽人,助理实验师,硕士,2016年6月硕士研究生毕业于河海大学结构工程专业,现从事土木工程实验教学工作。
