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[期刊论文]

Evaluation of self-healing performance of a smart composite material (SMA-ECC)

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author:

Chen, Weihong (Chen, Weihong.) [1] (Scholars:陈伟宏) | Feng, Kai (Feng, Kai.) [2] | Wang, Ying (Wang, Ying.) [3] (Scholars:王莹) | Unfold

Indexed by:

EI SCIE

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. (c) 2021 Elsevier Ltd. All rights reserved.

Keyword:

Engineered cementitious composite Self-healing Shape memory alloy Ultrasonic pulse test

Community:

  • [ 1 ] [Chen, Weihong]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Peoples R China
  • [ 2 ] [Feng, Kai]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Peoples R China
  • [ 3 ] [Wang, Ying]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Peoples R China
  • [ 4 ] [Lin, Yiwang]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Peoples R China
  • [ 5 ] [Qian, Hui]Zhengzhou Univ, Sch Civil Engn, Zhengzhou 450001, Peoples R China

Reprint 's Address:

  • 王莹

    [Wang, Ying]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Peoples R China

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Version:

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 Discipline: MATERIALS SCIENCE;

ESI HC Threshold:142

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 47

SCOPUS Cited Count: 57

30 Days PV: 0

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