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http://dx.doi.org/10.7843/kgs.2013.29.12.95

The Strength Characteristics of PVA Fiber Reinforced CSG Materials  

Jin, Guang-Ri (Korea Water Resources Corporation)
Kim, Ki-Young (Korea Water Resources Corporation)
Quan, He-Chun (Dept. of Civil Engrg., Yanbian Univ.)
Kim, Kyu-Won (Korea Water Resources Corporation)
Publication Information
Journal of the Korean Geotechnical Society / v.29, no.12, 2013 , pp. 95-104 More about this Journal
Abstract
Recently, application of CSG is increasing in various design construction projects. At the initial stage of cementation CSG materials show the same mechanical characteristics as soil, however, as the cementation process develops, CSG materials gradually reveal material characteristics of concrete. The hardened CSG manifests elastic behavior such as maximum strength at small strain range and rapid brittle failure. In this research, PVA fiber stiffeners were used in order to: (1) reduce such brittle behavioral characteristics; (2) improve the relatively weak tension performance of CSG materials. The binding strength between the bed materials and fiber prevents rapid brittle failure and increases tensional strength of fiber reinforced CSG materials.Test results show that fiber reinforcement alone could induce the stress-strain characteristics of CSG materials from brittle failure to ductile failure and also increase the residual strength.
Keywords
CSG (Cemented Sand and Gravel); PVA fiber; Unconfined compressive strength; Splitting tensile strength;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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