[1] Guo Liping, Chen Bo, Wu Yue, et al. Effect of fiber type on the bending and uniaxial tensile propertiesof high-strength high-ductility cementitious composites [J]. Journal of Southeast University (English Edition), 2018, 34 (4): 495-499. [doi:10.3969/j.issn.1003-7985.2018.04.012]

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Effect of fiber type on the bending and uniaxial tensile propertiesof high-strength high-ductility cementitious composites()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

34

Issue:

2018 4

Page:

495-499

Research Field:

Materials Sciences and Engineering

Publishing date:

2018-12-20

Info

Title:

Effect of fiber type on the bending and uniaxial tensile propertiesof high-strength high-ductility cementitious composites

Author(s):

Guo Liping¹;  2;  Chen Bo³;  Wu Yue¹;  2;  Lei Dongyi¹;  2

¹ School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
² Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing 211189, China
³ State Key Laboratory of H

Keywords:

fiber;  high ductility;  toughness;  uniaxial tensile

PACS:

TU528

DOI:

10.3969/j.issn.1003-7985.2018.04.012

Abstract:

To investigate the effect of fiber types on bending and tensile properties of high-strength, high-ductility cementitious composites(HS-HDCCs), ultra-high-molecular-weight polyethylene(PE)fibers, polyvinyl alcohol(PVA)fibers, and copper-plated micro steel fibers were selected as the reinforcement materials. The bending and tensile properties of HS-HDCCs with different fibers with a volume fraction of 2% were studied. The results indicate that PE, PVA, micro steel, and PVA-PE hybrid fibers impart varying degrees of toughening and improve the tensile strength. During the tensile and bending processes, HS-HDCCs with micro steel fibers exhibit a strain-softening phenomenon. HS-HDCCs with PVA fibers or with PVA-PE hybrid fibers can achieve multiple cracking behaviors and strain hardening phenomenon to a certain extent and show slight high-ductility characteristics. HS-HDCCs with PE fibers exhibit multiple cracking behavior and strain hardening phenomenon and show significant high-ductility characteristics. The test results can provide a basis for selecting fibers suitable for HS-HDCCs reinforcement.

References:

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Memo

Memo:

Biography: Guo Liping(1979—), female, doctor, associate professor, guoliping691@163.com.
Foundation items: The National Key Research and Development Program of China(No.2016YFC0401610), the National Natural Science Foundation of China(No.51778133, 51739008, 51438003).
Citation: Guo Liping, Chen Bo, Wu Yue, et al. Effect of fiber type on the bending and uniaxial tensile properties of high-strength high-ductility cementitious composites[J].Journal of Southeast University(English Edition), 2018, 34(4):495-499.DOI:10.3969/j.issn.1003-7985.2018.04.012.

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