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Experimental Study on Bending Toughness of Engineered Cementitious Composites
https://orcid.org/http://orcid.org/0000-0002-0233-3066
Through the three-point bending test of ECC, the bending toughness of ECC is studied, and the load deflection curve is obtained to evaluate the bending mechanical properties of ECC. The conclusions are as follows: after the initial crack, the load of ECC continues to rise until the ultimate load, showing good strain hardening characteristics, but the increase of deflection corresponds to the opening of a single crack, and there is no multi crack cracking; The flexural performance of ECC of ordinary cement series is better than that of ECC of composite cement series. The composite preparation of cement has a certain impact on the flexural performance of ECC. The amount of fiber has a certain influence on the flexural performance of ECC, especially the ultimate deflection. The variety of PVA fiber has little influence on the bending performance of ECC, which is generally controlled at 5%. Under the same dosage, the influence of domestic PVA fiber and imported PVA fiber on the bending performance of ECC is basically the same.
Experimental Study on Bending Toughness of Engineered Cementitious Composites
https://orcid.org/http://orcid.org/0000-0002-0233-3066
Through the three-point bending test of ECC, the bending toughness of ECC is studied, and the load deflection curve is obtained to evaluate the bending mechanical properties of ECC. The conclusions are as follows: after the initial crack, the load of ECC continues to rise until the ultimate load, showing good strain hardening characteristics, but the increase of deflection corresponds to the opening of a single crack, and there is no multi crack cracking; The flexural performance of ECC of ordinary cement series is better than that of ECC of composite cement series. The composite preparation of cement has a certain impact on the flexural performance of ECC. The amount of fiber has a certain influence on the flexural performance of ECC, especially the ultimate deflection. The variety of PVA fiber has little influence on the bending performance of ECC, which is generally controlled at 5%. Under the same dosage, the influence of domestic PVA fiber and imported PVA fiber on the bending performance of ECC is basically the same.
Experimental Study on Bending Toughness of Engineered Cementitious Composites
https://orcid.org/http://orcid.org/0000-0002-0233-3066
Through the three-point bending test of ECC, the bending toughness of ECC is studied, and the load deflection curve is obtained to evaluate the bending mechanical properties of ECC. The conclusions are as follows: after the initial crack, the load of ECC continues to rise until the ultimate load, showing good strain hardening characteristics, but the increase of deflection corresponds to the opening of a single crack, and there is no multi crack cracking; The flexural performance of ECC of ordinary cement series is better than that of ECC of composite cement series. The composite preparation of cement has a certain impact on the flexural performance of ECC. The amount of fiber has a certain influence on the flexural performance of ECC, especially the ultimate deflection. The variety of PVA fiber has little influence on the bending performance of ECC, which is generally controlled at 5%. Under the same dosage, the influence of domestic PVA fiber and imported PVA fiber on the bending performance of ECC is basically the same.
Experimental Study on Bending Toughness of Engineered Cementitious Composites
Lecture Notes in Civil Engineering
Guo, Wei (editor) / Qian, Kai (editor) / Xue, Huiqing (author)
International Conference on Green Building, Civil Engineering and Smart City ; 2022 ; Guilin, China
Proceedings of the 2022 International Conference on Green Building, Civil Engineering and Smart City ; Chapter: 115 ; 1116-1124
2022-09-08
9 pages
Article/Chapter (Book)
Electronic Resource
English
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