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http://dx.doi.org/10.5389/KSAE.2010.52.4.073

The Compaction and Compressive Strength Properties of CSG Material Reinforced Polypropylene Fiber  

Kim, Young-Ik (충남대학교 지역환경토목학과)
Yeon, Kyu-Seok (충남대학교 지역환경토목학과)
Kim, Yong-Seong (강원대학교 지역건설공학과)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.52, no.4, 2010 , pp. 73-81 More about this Journal
Abstract
The cemented sand and gravel (CSG) method is a construction technique that adds cement and water to rock-like materials, such as rivered gravel or excavation muck which can be obtained easily at areas adjacent to dam sites. This study was performed to evaluate the compaction and compressive strength properties of stress-strain, elastic modulus and fracture mode CSG materials reinforced polypropylene fiber. Polypropylene fiber widely used for concrete reinforcement is randomly distributed into cemented sand. The two types of polypropylene fiber (monofillament and fibrillated fiber) were used and fiber fraction ratio was 0, 0.2 %, 0.4 %, 0.6 % and 0.8 % by the weight of total dry soil. The effect of fiber fraction ratio and fiber shape on compaction and compressive strength were investigated. The optimum moisture contents (OMC) of CSG material increased as fiber fraction increased and the dry density of CSG material decreased as fiber fraction. Also, the maximum increase in compressive strength was obtained at 0.4 % content of monofillament and fibrillated fiber. CSG material behaviour was controlled not only by fiber fraction but also fiber distribution, fiber shape and fiber type.
Keywords
CSG; polypropylene fiber; compaction; compressive strength; fracture;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
연도 인용수 순위
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