期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 69, 期 -, 页码 381-389出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2014.07.074
关键词
All-lightweight concrete; Artificial lightweight aggregate; Fiber reinforcement; Strength; Toughness
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2013R1A1A2064017]
- Korea University Grant
- Regional Development Research Program - Ministry of Land, Infrastructure and Transport of Korea government [13RDRP-B066780]
- National Research Foundation of Korea [2013R1A1A2064017] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The effect of fiber reinforcement on all-lightweight concrete in which both fine and coarse aggregates are artificially lightweight was investigated experimentally. Three different fibers (i.e., steel, vinylon and polyethylene) were compared for their effects on the compressive strength, splitting tensile strength, flexural strength, shear strength, and toughness. Normal concrete with the same compressive strength as the all-lightweight concrete was prepared as a reference. Using 1.5% vinylon fibers significantly improved the flexural strength of the all-lightweight concrete 234% higher than that of normal concrete. Using 1.2% steel fiber increased the fracture toughness of the all-lightweight concrete more than twelve times. (C) 2014 Elsevier Ltd. All rights reserved.
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