聚丙烯纤维掺量对混凝土抗裂性能的影响  

Effect of Polypropylene Fiber Content on Crack Resistance of Concrete

作　　者：景广涛 陈海强 张婷[2] JING Guang-tao;CHEN Hai-qiang;ZHANG Ting(Zhongjiao Green Water Source Construction Group Co.,LTD,Beijing,100094,China;College of Construction Engineering,Jilin University,Changchun,Jilin,130026,China)

机构地区：[1]中交碧水源建设集团有限公司,北京100094 [2]吉林大学建设工程学院,吉林长春130026

出　　处：《建材技术与应用》2025年第1期1-4,共4页Research and Application of Building Materials

摘　　要：通过试验对比分析不同掺量聚丙烯(PP)纤维混凝土的抗压强度及其早期抗裂性能的表现差异。试验结果表明:掺加PP纤维后,混凝土的抗压强度得到提高,初始开裂时间延后,裂缝的最大宽度有所降低,且裂缝的总面积大幅减小;研究进一步验证了PP纤维的加入能显著改善混凝土的早期抗裂性能。The difference of compressive strength and early cracking resistance of polypropylene(PP)fiber reinforced concrete was analyzed by experiments.The test results showed that the compressive strength of concrete was increased,the initial cracking time was delayed,the maximum width of cracks was reduced,and the total area of cracks was greatly reduced after PP fiber was added.It was further verified that the addition of PP fiber can significantly improve the early crack resistance of concrete.

关 键 词：聚丙烯纤维 混凝土 抗裂性能 

分 类 号：TU528.57[建筑科学—建筑技术科学]