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http://dx.doi.org/10.14190/JRCR.2021.9.2.200

Tensile Behavior and Cracking Patterns of Fiber-Reinforced Cementless Composites According to Types of Superplasticizers  

Park, Se-Eon (Department of Architecture and Civil Engineering, Chonnam National University)
Choi, Jeong-Il (Biohousing Research Center, Chonnam National University)
Kim, Yun Yong (Department of Civil Engineering, Chungnam National University)
Lee, Bang Yeon (School of Architecture, Chonnam National University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.9, no.2, 2021 , pp. 200-207 More about this Journal
Abstract
The purpose of this study is to investigate experimentally the effects of type of superplasticizer on tensile behavior and cracking pattern of alkali-activated slag-based cementless composite. Three mixtures were prepared according to type of superplasticizer, and the compressive strength and tension tests were performed. Test results showed that differences of tensile strength, tensile strain capacity, and toughness of composites were up to 28.1%, 39.1%, and 66.2%, respectively, according to type of superplasticizer, although fiber balling or poor dispersion of fibers in fresh composites was not observed. It was also observed that the type of superplasticizer influenced number of cracks and maximum fiber bridging stress.
Keywords
Superplasticizer; Crack pattern; Composite; Fiber; Tensile behavior;
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