• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Xue, Junqing (Xue, Junqing.) [1] (Scholars:薛俊青) | Mao, Shengrong (Mao, Shengrong.) [2] | Cacciola, Pierfrancesco (Cacciola, Pierfrancesco.) [3] | Contento, Alessandro (Contento, Alessandro.) [4] | Lampropoulos, Andreas (Lampropoulos, Andreas.) [5] | Nicolaides, Demetris (Nicolaides, Demetris.) [6] | Petrou, Michael F. (Petrou, Michael F..) [7] | Yang, Zhengxian (Yang, Zhengxian.) [8] (Scholars:杨政险) | Briseghella, Bruno (Briseghella, Bruno.) [9] (Scholars:BRUNO BRISEGHLLA)

Indexed by:

EI Scopus SCIE

Abstract:

The effectiveness of the use of fibers in Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) can be limited by their random orientation in the cementitious matrix. Oriented steel fibers, on the other hand, show significant promise in enhancing the tensile and flexural properties of UHPFRC specimens when the principal tensile stresses predominantly align in a single direction. Despite various proposed methods for orienting steel fibers in UHPFRC, their comparative impact on mechanical properties remained unclear. To bridge this gap, three different strategies were examined in this study, namely: i) chute with vibration table, ii) L-shaped device, and iii) electromagnetic field with vibration table, aiming at controlling the steel fibers orientation in UHPFRC specimens. Uniaxial tensile, four-point flexural, and compressive tests were conducted to examine the influence of different orientation methods on mechanical properties. The experimental findings revealed that compared to randomly oriented fibers, oriented steel fiber UHPFRC had superior tensile, flexural, and compressive strength. Additionally, fiber orientation led to improved consistency of the UHPFRC properties as well as thinner, more densely distributed cracks, regular fracture surfaces, and lower elastic modulus and Poisson's ratio. Electromagnetic field orientation proved to be the most effective orientation method, L-shaped device method the least effective due to heightened fluidity demands in the mixture, and the chute with vibration method ranked in between. This research represents a thorough investigation into the comparative efficacy of different methods for orienting steel fibers in UHPFRC, shedding new light on the optimal approach to enhance mechanical properties.

Keyword:

concrete Four-point flexural test Mechanical property Orientation Steel fiber Ultra-high performance fiber reinforced Uniaxial tensile test

Community:

  • [ 1 ] [Xue, Junqing]Fuzhou Univ, Coll Civil Engn, Fuzhou, Peoples R China
  • [ 2 ] [Mao, Shengrong]Fuzhou Univ, Coll Civil Engn, Fuzhou, Peoples R China
  • [ 3 ] [Contento, Alessandro]Fuzhou Univ, Coll Civil Engn, Fuzhou, Peoples R China
  • [ 4 ] [Yang, Zhengxian]Fuzhou Univ, Coll Civil Engn, Fuzhou, Peoples R China
  • [ 5 ] [Briseghella, Bruno]Fuzhou Univ, Coll Civil Engn, Fuzhou, Peoples R China
  • [ 6 ] [Xue, Junqing]Fuzhou Univ, Fujian Prov Key Lab Multidisasters Prevent & Mitig, Fuzhou, Peoples R China
  • [ 7 ] [Contento, Alessandro]Fuzhou Univ, Fujian Prov Key Lab Multidisasters Prevent & Mitig, Fuzhou, Peoples R China
  • [ 8 ] [Yang, Zhengxian]Fuzhou Univ, Fujian Prov Key Lab Multidisasters Prevent & Mitig, Fuzhou, Peoples R China
  • [ 9 ] [Briseghella, Bruno]Fuzhou Univ, Fujian Prov Key Lab Multidisasters Prevent & Mitig, Fuzhou, Peoples R China
  • [ 10 ] [Xue, Junqing]Fuzhou Univ, Coll Civil Engn, Joint Int Res Lab Deteriorat & Control Coastal & M, Fuzhou, Peoples R China
  • [ 11 ] [Contento, Alessandro]Fuzhou Univ, Coll Civil Engn, Joint Int Res Lab Deteriorat & Control Coastal & M, Fuzhou, Peoples R China
  • [ 12 ] [Yang, Zhengxian]Fuzhou Univ, Coll Civil Engn, Joint Int Res Lab Deteriorat & Control Coastal & M, Fuzhou, Peoples R China
  • [ 13 ] [Briseghella, Bruno]Fuzhou Univ, Coll Civil Engn, Joint Int Res Lab Deteriorat & Control Coastal & M, Fuzhou, Peoples R China
  • [ 14 ] [Cacciola, Pierfrancesco]Univ Brighton, Sch Architecture Technol & Engn, Brighton, England
  • [ 15 ] [Lampropoulos, Andreas]Natl Tech Univ Athens, Fac Civil Engn, Lab Reinforced Concrete, Athens, Greece
  • [ 16 ] [Nicolaides, Demetris]Frederick Univ, Dept Civil Engn, Nicosia, Cyprus
  • [ 17 ] [Petrou, Michael F.]Univ Cyprus, Dept Civil & Environm Engn, Nicosia, Cyprus

Reprint 's Address:

  • [Contento, Alessandro]Fuzhou Univ, 2 Xue Yuan Rd, Fuzhou 350108, Fujian, Peoples R China;;

Show more details

Related Keywords:

Source :

CONSTRUCTION AND BUILDING MATERIALS

ISSN: 0950-0618

Year: 2024

Volume: 448

7 . 4 0 0

JCR@2023

Cited Count:

WoS CC Cited Count: 3

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

Online/Total:132/10008253
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1