Study on Mechanical Properties of Polypropylene Fiber Mixed Recycled Aggregate Concrete

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Study on Mechanical Properties of Polypropylene Fiber Mixed Recycled Aggregate Concrete

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[1]Yuan Chengfang,Wei Yiran,Li Shuang,et al.Study on Mechanical Properties of Polypropylene Fiber Mixed Recycled Aggregate Concrete[J].Journal of Zhengzhou University (Engineering Science),2021,42(02):50-54.[doi:10.13705/j.issn.1671-6833.2021.02.001]

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 42 Number of periods: 2021 02 Page number: 50-54 Column: Public date: 2021-04-12

Title:: Study on Mechanical Properties of Polypropylene Fiber Mixed Recycled Aggregate Concrete

Author(s):: Yuan Chengfang; Wei Yiran; Li Shuang;; School of Civil Engineering at Zhengzhou University; Key Laboratory of Durability of Binhai Civil Engineering at Shenzhen University;

Keywords:: construction waste; mixed aggregate; recycled aggregate concrete; polypropylene fibers; mechanical properties; X-ray computed tomography

CLC:: -

DOI:: 10.13705/j.issn.1671-6833.2021.02.001

Abstract:: The resource utilization of mixed waste concrete and sintered bricks is an important way to solve the problems of urban construction waste stacking and pollution. Based on the mechanical properties test and X-ray computed tomography (XCT) test of polypropylene fiber mixed recycled aggregate concrete, the influence law and mechanism of fiber on the compression and tensile properties of recycled aggregate concrete were studied in depth. The result showed that when the fiber content is 0.6 kg/m3, the compressive strength of recycled aggregate concrete was slightly increased, and when the fiber content was higher, the compressive strength of recycled aggregate concrete was reduced. Polypropylene fiber improved the tensile properties of recycled aggregate concrete. When the fiber content was 1.2 kg/m3, the fiber had the best improvement effect on the splitting tensile performance and bending tensile properties of recycled aggregate concrete. Polypropylene fiber had both positive and negative effects on the mechanical properties of recycled aggregate concrete. It was necessary to consider the reasonable amount of fiber when using it to obtain more excellent performance.

References:: [1] 孙跃东，肖建庄.再生混凝土骨料[J].混凝土，2004(6)：33-36.
[2] 李云霞,李秋义,赵铁军.再生骨料与再生混凝土的研究进展[J].青岛理工大学学报,2005,26(5):16-19,44.
[3] 朋改非，沈大钦，朱海英，等. 同配合比条件下再生骨料混凝土与基准混凝土的力学性能比较研究[J]. 混凝土，2006(2)：34-38.
[4] 朱慈勉,李坛.废弃混凝土掺合型再生混凝土的力学性能[J].华南理工大学学报(自然科学版),2014,42(2):50-56.
[5] 李佳彬，肖建庄，孙振平. 再生粗骨料特性及其对再生混凝土性能的影响[J]. 建筑材料学报，2004(4)：390-395.
[6] 王兴国，程飞，王一新，等.纤维改性再生混凝土材料性能研究进展[J].玻璃钢/复合材料，2019(12)：106-113.
[7] 吴建华,马石城,唐昭青,等.聚丙烯纤维和硅粉对再生混凝土的强化试验研究[J].混凝土,2006(11):36-38.
[8] 杨永生,王军.纤维再生混凝土基本力学性能试验[J].辽宁工程技术大学学报(自然科学版),2013,32(12):1669-1672.
[9] 朱红兵,姚晨,赵本露,等.聚丙烯纤维掺量对再生混凝土抗折疲劳性能影响的试验研究[J].四川建筑科学研究,2017,43(5):104-107.
[10] 秦荷成.聚丙烯纤维对再生混凝土中长期抗裂性能的影响[J].混凝土与水泥制品,2013(4):40-42.
[11] 邵昀泓，庞亚凤，郑元勋，等. 再生混凝土破坏机理及力学增强策略研究综述[J]. 郑州大学学报(工学版)，2020，41(4)：17-22.
[12] 中国工程建设标准化协会.纤维混凝土试验方法标准：CECS 13—2009[S].北京:中国计划出版社,2010.
[13] 中华人民共和国建设部.普通混凝土力学性能试验方法标准：GB/T 50081—2002[S].北京:中国建筑工业出版社,2003.

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