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Title |
Experimental Study for Fracture Characteristic of New Building Materials with Recycled Ash
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Keywords |
파괴; 파괴에너지; 석탄회; 노치; 3점 휨시험; fracture; fracture energy; coal-ash; notch; three points bending test |
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Abstract |
Immense quantities of coal combustion by-products are produced every year, and only a small fraction of them are currently utilized. The purpose of this study is to investigate reused techniques of coal ash in the construction field, which may contribute to the savings of building materials and conservation of environment. From the results of the compressive strength test, the elastic modulus was experimentally proposed. Also, based on the three- point-bending test, the fracture parameters - notch sensitivity, fracture energy, and initial compliance were experimentally proposed. As a result, the strength and fracture characteristics were lower than those of concrete or mortar. Also, the study showed that the deflection at a fracture decreased as the age increased and as the notch depth rate decreased. However, it was judged that its use as a building material could be expected if further research is carried out.
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