聚丙烯纤维对干硬性再生混凝土性能影响试验研究  

Experimental Study on the Effect of Polypropylene Fiber on Properties of Stiff Recycled Concrete

作　　者：许飞[1] 王兵[1] 宋鲁光 XU Fei;WANG Bing;SONG Lu-guang(Yangzhou Polytechnic College,Yangzhou 225009,China;Changzhou Institute of Technology,Changzhou 213002,China)

机构地区：[1]扬州职业大学,江苏扬州225009 [2]常州工学院,江苏常州213002

出　　处：《扬州职业大学学报》2018年第3期27-29,37,共4页Journal of Yangzhou Polytechnic College

基　　金：住房和城乡建设部科学技术计划项目(2017-K4-005);江苏省高校自然科学研究项目(16KJB560025);扬州市科技计划项目(YZ2018145)

摘　　要：为研究不同聚丙烯纤维掺量对干硬性再生混凝土性能的影响,利用专用加压成型装置设计制作4类干硬性再生混凝土试件,对混凝土拌合物的维勃稠度、混凝土的抗压强度和劈拉强度进行了测试。结果表明,掺加聚丙烯纤维会增大干硬性再生混凝土拌合物的维勃稠度,减小拌合物的流动性;同时聚丙烯纤维可提高干硬性再生混凝土的抗压强度和劈拉强度。To study the effects of different polypropylene fiber content on the properties of stiff recycled con- crete, four types of stiff recycled concrete specimens are fabricated by special pressure molding device in this article. And the VB consistency of a concrete mixture, the compressive strength, and splitting tensile strength of concrete specimens are tested. The experimental result indicates that the addition of polypropylene fiber can increase the VB consistency of stiff recycled concrete mixture with the decrease of fluidity, and meanwhile, polypropylene fiber can also increase the compressive strength and splitting tensile strength of stiff recycled concrete, and the enhancement effect on the splitting tensile strength is much more obvious.

关 键 词：干硬性再生混凝土 聚丙烯纤维 维勃稠度 抗压强度 劈拉强度 

分 类 号：TU528[建筑科学—建筑技术科学]