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author:

Chen, Weihong (Chen, Weihong.) [1] | Feng, Kai (Feng, Kai.) [2] | Wang, Ying (Wang, Ying.) [3] | Lin, Yiwang (Lin, Yiwang.) [4] | Qian, Hui (Qian, Hui.) [5]

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EI

Abstract:

The durability of cementitious materials is affected by the presence of cracks. This paper proposed a novel composite material and evaluated its crack healing ability. This material consisted with engineered cementitious composite (ECC) and shape memory alloy (SMA) fibers. A total of 12 specimens were made and tested under flexural loads. Test parameters included material type and target displacement level. Test results indicated that specimens with SMA-ECC had great increase in strength and ductility compared with specimens with concrete. Specimens with SMA-ECC exhibited promising crack healing ability by effectively reducing the crack number and width. The self-healing ability reduced with increasing target displacement level. The self-healing ability was further investigated through ultrasonic pulse test. Ultrasonic pulse test results were consistent with the mechanical test results, indicating effectiveness of this test method. This composite material SMA-ECC has promising application in infrastructure critical for security to mitigate damage and heal cracks, and increases durability of the structure, and reduces maintenance cost. © 2021 Elsevier Ltd

Keyword:

Composite materials Cracks Durability Self-healing materials Shape-memory alloy Ultrasonic testing

Community:

  • [ 1 ] [Chen, Weihong]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [Feng, Kai]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 3 ] [Wang, Ying]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 4 ] [Lin, Yiwang]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 5 ] [Qian, Hui]School of Civil Engineering, Zhengzhou University, Zhengzhou; 450001, China

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Source :

Construction and Building Materials

ISSN: 0950-0618

Year: 2021

Volume: 290

7 . 6 9 3

JCR@2021

7 . 4 0 0

JCR@2023

ESI HC Threshold:142

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 57

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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