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Author:

Wang, Qiusheng (Wang, Qiusheng.) (Scholars:王秋生) | Yi, Yong (Yi, Yong.) | Ma, Guowei (Ma, Guowei.) | Luo, Hao (Luo, Hao.)

Indexed by:

EI Scopus SCIE

Abstract:

In order to increase the strength and lower the cost, this study experimentally investigated the effects of hooked-end steel fiber, basalt fiber and calcium sulfate on mechanical performance of polyvinyl alcohol (PVA) fiber-based engineered cementitious composite (ECC) containing high-volume fly ash. The uniaxial tensile, compression and four-point bending tests were carried out to characterize the mechanical behavior of each mixture. Scanning Electron Microscopy (SEM) image analysis and X-ray CT scan method were used to study the micro-structures and distributions of pores. Test results showed that the ultimate strain capacity increases nearly linearly with the growth of stress performance index except the ECC reinforced with calcium sulfate and PVA. Hybridization with basalt fiber and PVA fiber or steel fiber and PVA fiber is more effective for improving mechanical performance within small deformation. ECC reinforced with calcium sulfate and PVA exhibits improved tensile, compressive and flexural strength while maintaining high ductility. The cost performance considering strength/cost and ductility/cost of hybrid mixtures was also discussed.

Keyword:

Engineered cementitious composite (ECC) Mechanical performance Steel fiber Calcium sulfate Basalt fiber Hybrid

Author Community:

  • [ 1 ] [Wang, Qiusheng]Beijing Univ Technol, Inst Geotech & Underground Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Yi, Yong]Beijing Univ Technol, Inst Geotech & Underground Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Ma, Guowei]Beijing Univ Technol, Inst Geotech & Underground Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Luo, Hao]Beijing Univ Technol, Inst Geotech & Underground Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Yi, Yong]Beijing Univ Technol, Inst Geotech & Underground Engn, Beijing 100124, Peoples R China

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Source :

CEMENT & CONCRETE COMPOSITES

ISSN: 0958-9465

Year: 2019

Volume: 97

Page: 357-368

1 0 . 5 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:211

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 104

SCOPUS Cited Count: 121

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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