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[1]梁 靖,刘胜兵*,郑宇航.聚乙烯纤维对再生混凝土性能的影响[J].武汉工程大学学报,2022,44(03):346-349.[doi:10.19843/j.cnki.CN42-1779/TQ.202109008]
 LIANG Jing,LIU Shengbing*,ZHENG Yuhang.Effect of Polyethylene Fiber on Properties of Recycled Concrete[J].Journal of Wuhan Institute of Technology,2022,44(03):346-349.[doi:10.19843/j.cnki.CN42-1779/TQ.202109008]
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聚乙烯纤维对再生混凝土性能的影响(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
44
期数:
2022年03期
页码:
346-349
栏目:
资源与土木工程
出版日期:
2022-06-30

文章信息/Info

Title:
Effect of Polyethylene Fiber on Properties of Recycled Concrete
文章编号:
1674 - 2869(2022)03 - 0346 - 04
作者:
梁 靖刘胜兵*郑宇航
武汉工程大学土木工程与建筑学院,湖北 武汉 430074
Author(s):
LIANG JingLIU Shengbing*ZHENG Yuhang
School of Civil Engineering and Architecture,Wuhan Institute of Technology,Wuhan 430074,China
关键词:
聚乙烯纤维再生混凝土坍落度抗压强度劈裂抗拉强度
Keywords:
polyethylene fiber recycled concrete slump compressive strength splitting tensile strength
分类号:
TU528.57
DOI:
10.19843/j.cnki.CN42-1779/TQ.202109008
文献标志码:
A
摘要:
为改善再生混凝土脆性大、易开裂的缺陷,掺入3种不同体积分数(0.1%,0.2%,0.3%)的聚乙烯纤维得到纤维增强再生混凝土,开展了坍落度、立方体抗压强度和劈裂抗拉强度试验。结果表明:掺入体积分数为0.2%的聚乙烯纤维时,再生混凝土的立方体抗压强度提升幅度最大(10.3%)。纤维的掺入降低了再生混凝土的坍落度,当聚乙烯纤维体积分数为0.3%时,坍落度降低幅度最大(18.2%)。再生混凝土的劈裂抗拉强度和拉压比随纤维体积分数的增加而提高,聚乙烯纤维体积分数为0.3%时,劈裂抗拉强度和拉压比分别提高了22.5%、16.9%,纤维的掺入改善了再生混凝土的脆性。
Abstract:
To improve the defects of recycled concrete which is brittle and prone to cracking, the fiber-reinforced recycled concrete was obtained by mixing three different volume fractions(0.1%, 0.2%, 0.3%) of polyethylene fibers. Their slump, cubic compressive and splitting tensile were investigated. The results show that the cubic compressive strength of the recycled concrete increases by a maximum of 10.3% when polyethylene fibers with a volume fraction of 0.2% are incorporated. The incorporation of fibers reduces the slump of the recycled concrete, and the maximum slump reduction is 18.2% when the polyethylene fiber volume fraction is 0.3%. The splitting tensile strength and the tensile to compressive ratio of recycled concrete increase with the increase of fiber volume fraction, and they increase by 22.5% and 16.9% respectively when the volume fraction of polyethylene fiber is 0.3%, demonstrating the incorporation of fiber improves the brittleness of recycled concrete.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-09-09
基金项目:湖北省教育厅科学研究计划项目(B2015313); 武汉工程大学第十二届研究生教育创新基金(CX2020110)
作者简介:梁 靖,硕士研究生。E-mail:[email protected]
*通讯作者:刘胜兵,博士,副教授。E-mail:[email protected]
引文格式:梁靖,刘胜兵,郑宇航. 聚乙烯纤维对再生混凝土性能的影响[J]. 武汉工程大学学报,2022,44(3):346-349.

更新日期/Last Update: 2022-06-29