欢迎访问《实验力学》编辑部网站！

首页 | 期刊简介 | 编委会 | 投稿须知 | 出版道德规范 | 下载专区 | English

夏叶飞,郑业勇,张为民,潘勇,杨才千*,孟春麟.橡胶粉对PVA-ECC力学性能影响研究[J].实验力学,2018,33(6):987~993

橡胶粉对PVA-ECC力学性能影响研究

Study on the effect of rubber powder on mechanical properties of PVA-ECC

投稿时间：2018-01-19 修订日期：2018-04-01

中文关键词: 聚乙烯醇纤维增强工程水泥基复合材料(PVA-ECC) 力学性能复合材料橡胶粉

英文关键词:Polyvinyl alcohol fiber reinforced engineered cementitious composite (PVA-ECC) mechanical properties composite materials rubber powder

基金项目:湖南省重点研发计划(2018WK2111), 湖南省创投项目(2018GK5028), 国家自然科学基金青年项目(51708476), 湖南省自然科学基金项目(2017JJ3302)资助

作者	单位
夏叶飞	江苏华通工程检测有限公司，江苏南京 210000
郑业勇	湘潭大学土木工程与力学学院，湖南湘潭 411105
张为民	湘潭大学土木工程与力学学院，湖南湘潭 411105
潘勇	江苏汾灌高速公路管理有限公司，江苏连云港 222000
杨才千*	1.湘潭大学土木工程与力学学院，湖南湘潭 411105 2.东南大学土木工程学院，江苏南京 210018
孟春麟	江苏汾灌高速公路管理有限公司，江苏连云港 222000

摘要点击次数: 771

全文下载次数: 192

中文摘要:

为研究橡胶粉对聚乙烯醇纤维增强水泥基复合材料(PVA-ECC)力学性能的影响，以掺入了橡胶粉的PVA-ECC为研究对象，对其强度和压缩韧性进行试验研究，并采用扫描电镜对橡胶粉表面微观形貌进行分析。研究参数包括橡胶粉掺量、改性方式及粒径。试验结果表明：相对于基准试件，橡胶粉掺量为5%时，试件抗压强度提高了6%；掺量为10%时，试件抗压强度基本相等，压缩韧性指标有所提高；橡胶粉掺量较低时，试件呈现多裂缝失效模式，延性相对于基准试件有一定提高；橡胶粉粒径及处理方式对试件力学性能影响不大。因此，采用掺量低于10%的水洗橡胶粉制备PVA-ECC能提高其抗压强度、压缩韧性及延性，且更易制备。

英文摘要:

In order to study the effect of rubber powder on the mechanical properties of polyvinyl alcohol fiber reinforced engineered cementitious composites (PVA-ECC), the strength and compression toughness of PVA-ECC with rubber powder were investigated experimentally. The microscopic surface morphology of rubber powder was analyzed by scanning electron microscope (SEM). The studied parameters include the amount of rubber powder, modification method and particle size. Experimental results show that compared with the reference specimen, the compressive strength of specimen increases by 6%, when the rubber powder is added to the sample with a content of 5%. When the rubber powder content is 10%, the compressive strength of the specimen is basically equal. Compression toughness index has been improved. When the content of rubber powder is low, the specimen presents multi-crack failure mode, and its ductility is improved compared with the reference specimen. The effect of rubber particle size and modification method on composite mechanical properties can be negligible. Therefore, a small amount of the rubber powder mixed with PVA-ECC can improve its mechanical properties.

查看全文下载PDF阅读器

关闭