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Author:

Zhang, Renbo (Zhang, Renbo.) | Jin, Liu (Jin, Liu.) (Scholars:金浏) | Tian, Yudong (Tian, Yudong.) | Dou, Guoqin (Dou, Guoqin.) | Du, Xiuli (Du, Xiuli.) (Scholars:杜修力)

Indexed by:

EI Scopus SCIE

Abstract:

An eco-friendly polyvinyl alcohol (PVA) fiber-reinforced ultra-high-strength concrete (PFR-UHSC) was designed and mixed to evaluate its static and dynamic mechanical properties in this study. A lower water-to-binder ratio of 0.22 and a superplasticizer were used to guarantee the performance of PFR-UHSC, while several industrial by-products were involved to reduce the negative environmental impact of concrete. Four volume fraction of PVA fibers (V-f=0, 0.5, 1.0, and 1.5%) were included in the experiment and steel fiber-reinforced ultra-high-strength concrete (SFR-UHSC) with V-f=1.0% was also tested as a comparison. Experiment results show that although less ductile than SFR-UHSC, PFR-UHSC exhibits relatively good ductility, toughness, and deformability under static loadings. Namely, splitting tensile and flexural strengths as well as flexural toughness of PFR-UHSC are significantly improved by the incorporation of PVA fibers while no obvious variation is viewed for Young's modulus. And even, the compressive strength of PFR-UHSC decreases slightly with the increasing PVA fiber dosage. When subjected to dynamic loadings with lower strain rates, PFR-UHSC displays a better performance than SFR-UHSC in terms of failure patterns, while a reverse behavior is observed for high strain rate. Affected by introduction of PVA fiber, the enhancement of strain rate for compressive strength of PFR-UHSC is lower than that for ordinary concrete but higher than that for SFR-UHSC. Besides, although having a slightly lower compressive toughness, the energy absorption capacity of PFR-UHSC is similar to that of SFR-UHSC.

Keyword:

polyvinyl alcohol (PVA) fiber SHPB test tensile properties compressive strength fiber-reinforced concrete

Author Community:

  • [ 1 ] [Zhang, Renbo]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Jin, Liu]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Tian, Yudong]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Dou, Guoqin]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Du, Xiuli]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 金浏

    [Jin, Liu]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

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Source :

STRUCTURAL CONCRETE

ISSN: 1464-4177

Year: 2019

Issue: 3

Volume: 20

Page: 1051-1063

3 . 2 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:136

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 37

SCOPUS Cited Count: 39

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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