Experimental Research on Shear Performance of V-Notched PE-ECC Beams

XU Mingwen; SU Yanli; WANG Xinru; JIN Chenhua; WU Chang; ZHOU Zhen

doi:10.13204/j.gyjzG23072614

Volume 53 Issue 9

Sep. 2023

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2023 > 53(9): 149-155

XU Mingwen, SU Yanli, WANG Xinru, JIN Chenhua, WU Chang, ZHOU Zhen. Experimental Research on Shear Performance of V-Notched PE-ECC Beams[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(9): 149-155. doi: 10.13204/j.gyjzG23072614

Citation:

XU Mingwen, SU Yanli, WANG Xinru, JIN Chenhua, WU Chang, ZHOU Zhen. Experimental Research on Shear Performance of V-Notched PE-ECC Beams[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(9): 149-155. doi: 10.13204/j.gyjzG23072614

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Experimental Research on Shear Performance of V-Notched PE-ECC Beams

doi: 10.13204/j.gyjzG23072614

1. School of Civil Engineering, Southeast University, Nanjing 211189, China;
2. School of Architectural Engineering, Jinling Institute of Technology, Nanjing 211169, China

Received Date: 2023-07-26
Available Online: 2023-11-08

Abstract

Abstract

Through shear tests on 12 polyethylene fiber-reinforced engineered cementitious composite (PE-ECC) V-notched beams, the effects of different mix proportion and fiber content on the shear performance of V-notched PE-ECC beams were studied. The test results showed that the V-notched beam with pure matrix was obvious brittle damage, while the V-notched PE-ECC beam was ductile damage. The cracks of the V-notched PE-ECC beams mainly appeared in the region between the loading point and the support on both sides of the notch, and the V-notched PE-ECC beams exhibited multi-cracking characteristics. When the load reached the peak load, the specimen shows the main crack and the specimen had obvious deflection. When the fiber content is in the range of 0%-2%, the shear capacity and ductility of V-notched PE-ECC beams increased with the increase of fiber content, and the crack propagation of the specimens with 2% fiber content was more sufficient than that of the specimens with 1% fiber content, while the average shear strength of PE-ECC was 9.46 MPa, which was 1.79 times of the axial tensile strength, when the fiber content is 2%.
- engineered cementitious composite,
- polyethylene fiber,
- V-notched beams,
- shear performance,
- multiple cracking

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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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