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Title |
Basic Mixing and Mechanical Tests on High Ductile Fiber Reinforced Cementless Composites
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Authors |
조창근 ; 임현진 ; 양근혁 ; 송진규 ; 이방연 |
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Keywords |
고인성 ; 알칼리 활성화제 ; 고로슬래그 ; PVA 섬유 ; 합성 high ductility ; alkali-activator ; blast-furnace slag ; PVA fiber ; composite |
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Abstract |
Cement has been traditionally used as a main binding material of high ductile fiber reinforced cementitious composites. The purpose of this paper is to investigate the feasibility of using alkali-activated slag and polyvinyl alcohol (PVA) fibers for manufacturing high ductile fiber reinforced cementless composites. Two mixture proportions with proper flowability and mortar viscosity for easy fiber mixing and uniform fiber dispersion were selected based on alkali activators. Then, the slump flow, compression, uniaxial tension and bending tests were performed on the mixes to evaluate the basic properties of the composites. The cementless composites showed an average slump flow of 465 mm and tensile strain capacity of approximately 2% of due to formation of multiple micro-cracks. Test results demonstrated a feasibility of manufacturing high ductile fiber reinforced composites without using cement.
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