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Effect of shrinkage-reducing admixture on biaxial flexural behavior of ultra-high-performance fiber-reinforced concrete

Title
Effect of shrinkage-reducing admixture on biaxial flexural behavior of ultra-high-performance fiber-reinforced concrete
Author
류두열
Keywords
Ultra-high-performance fiber-reinforced concrete; Shrinkage-reducing admixture; Compression; Fiber pullout; Biaxial flexure; Toughness
Issue Date
2015-08
Publisher
ELSEVIER SCI LTD
Citation
CONSTRUCTION AND BUILDING MATERIALS, v. 89, Page. 67-75
Abstract
This study aims to investigate the effect of shrinkage-reducing admixture (SEA) on the mechanical properties of ultra-high-performance fiber-reinforced concrete (UHPFRC). Three different SEA to cement weight ratios (0%, 1%, and 2%) were considered using the UHPFRC including 2% of smooth steel fibers by volume. The specimen without SEA exhibited the best performance in almost all aspects of the mechanical behaviors in compression, fiber pullout, and biaxial flexure including load carrying capacity, strain capacity, and energy absorption capacity (pullout energy and toughness). The mechanical performances deteriorated with the increase in the amount of SEA up to 2%. Finally, a suggestion was made to define the first cracking point of deflection-hardening UHPFRC under biaxial flexure stress. (C) 2015 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0950061815004833http://hdl.handle.net/20.500.11754/27184
ISSN
0950-0618; 1879-0526
DOI
10.1016/j.conbuildmat.2015.04.040
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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