EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF SLEEVE SPLICING GROUTED WITH PVA FIBER-REINFORCED CEMENTITIOUS COMPOSITES

ZHU Fangzhi; MA Zhiming; ZUO Gong; GAO Li

doi:10.13204/j.gyjzG19102204

Volume 51 Issue 1

Apr. 2021

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(1): 152-156,178

ZHU Fangzhi, MA Zhiming, ZUO Gong, GAO Li. EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF SLEEVE SPLICING GROUTED WITH PVA FIBER-REINFORCED CEMENTITIOUS COMPOSITES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(1): 152-156,178. doi: 10.13204/j.gyjzG19102204

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ZHU Fangzhi, MA Zhiming, ZUO Gong, GAO Li. EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF SLEEVE SPLICING GROUTED WITH PVA FIBER-REINFORCED CEMENTITIOUS COMPOSITES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(1): 152-156,178. doi: 10.13204/j.gyjzG19102204

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EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF SLEEVE SPLICING GROUTED WITH PVA FIBER-REINFORCED CEMENTITIOUS COMPOSITES

doi: 10.13204/j.gyjzG19102204

1. School of Civil Engineering and Architecture, Suqian College, Suqian 223800, China;
2. College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China

Received Date: 2020-07-02
Available Online: 2021-04-30

Abstract

Abstract

According to test results of pull-out tests for 6 specimens and uniaxial tensile tests for 27 grouted sleeve-splicing specimens,the influences of PVA fiber, anchorage length of rebars and with or without confines of grouted sleeves on splicing were analyzed. The results showed that the addition of PVA fiber could improve the bonding strength between the unconfined rebars and grouting materials, but had not obvious impact on the properties of grouted sleeve splicing. The rigidity of grouted sleeve splicing increased with the increase of anchorage length and the load-displacement curves was also more smoother. When the strength of the grouting materials was up to 85 to 90 MPa, the anchorage length of six times diameter of rebars could well meet the strength requirement of the grouted sleeve splicing. The constraint of sleeves could improve the bonding strength of the sleeves, grouting materials and rebars.
- sleeve splicing of being grouted,
- PVA fiber,
- steel anchorage length,
- precast concrete structure

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References(11)

References

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沈阳化工大学材料科学与工程学院沈阳 110142

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