孙守吉,王旻,李新宇,麻瑶,王信波,李磊
SUN Shou-ji,WANG Min,LI Xin-yu,MA Yao,WANG Xin-bo,LI Lei

• 1:中国建筑第八工程局有限公司西北分公司

摘要(Abstract)：

开展了再生混凝土试样单轴抗压强度试验，分析了聚丙烯纤维长度、直径以及质量分数对再生混凝土单轴抗压强度的影响。研究表明：在龄期7 d的情况下，影响再生混凝土单轴抗压强度的主次因素为：聚丙烯纤维长度>聚丙烯纤维质量分数>聚丙烯纤维直径；在龄期28 d的情况下，影响再生混凝土单轴抗压强度的主次因素为：聚丙烯纤维质量分数>聚丙烯纤维长度>聚丙烯纤维直径；随着养护时间的延长，再生混凝土试样的密度是降低的，而单轴抗压强度是增大的。
The uniaxial compressive strength test of recycled concrete samples was carried out, and the effects of polypropylene fiber length, diameter and mass fraction on the uniaxial compressive strength of recycled concrete were analyzed. The research shows that at the case of age 7 days, the main and secondary factors affecting the uniaxial compressive strength of recycled concrete are: the length of polypropylene fiber >the mass fraction of polypropylene fiber > the diameter of polypropylene fiber. At the case of age 28 days,the main and secondary factors affecting the uniaxial compressive strength of recycled concrete are: the mass fraction of polypropylene fiber > the length of polypropylene fiber > the diameter of polypropylene fiber. The density of recycled concrete samples decreases with the curing time, while the uniaxial compressive strength of recycled concrete increases.

关键词(KeyWords)： 聚丙烯纤维;再生混凝土;单轴抗压强度
polypropylene fiber;recycled concrete;uniaxial compressive strength

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 孙守吉,王旻,李新宇,麻瑶,王信波,李磊
SUN Shou-ji,WANG Min,LI Xin-yu,MA Yao,WANG Xin-bo,LI Lei

DOI: 10.16090/j.cnki.hcxw.2022.10.013

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