靱性を付与したセメント系押出成形部材の曲げ性能に及ぼす親水性化加工ポリプロピレン短繊維形状の影響に関する実験的研究

概要

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Using polypropylene fibers treated hydrophilically for cementitious components by extrusion moulding, it has been confirmed that flexural behaviors of these components are improved. This paper deals with geometrical effects of this fiber from the viewpoints of improving the flexural behaviors of cementitious components on the basis of two series of experiments. The following items are clarified; l) Regardless of the geometrical effects of fibers, first cracked flexural strength and effective water cement ratio had a unique linear relation. 2) First cracked flexural strength could be predicted in general by extruding pressure. This knowledge was utilizable in the quality control in manufacture. 3) The relation between first cracked flexural strength and surface dry density was represented as a unique curve for every kind of fibers.
社団法人日本建築学会の論文
2002-09-30