親水性化加工ポリプロピレン短繊維を混入した高靱性化セメント系部材の押出成形のための材料条件最適化技術に関する実験的研究

概要

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The optimizations of substance and their compositions is dealt with in this paper especially for used on the improving effects on ductility of cemetitious components by means of using hydrophilically treated polypropylene fibers. The following items are clarified; 1) The greater water content ratio became, the smaller extruding pressure became and the greater extruding velocity became. 2) Relationships between conveying rate per revolution and extruding pressure gave a unique curve independent of kinds and geometries of fibers, which were only dependent on the machinery condition. 3) The longer and the thin fiber became, the greater extruding pressure generally became. 4) Hydrophilic Porypropylene fiber can reduce extruding pressure in the range of low water cement ratio, and gave similar velocity as Chrysotile. 5) The most appropriate geometries were 2d×3mm in this experiment from the viewpoints of increasing firstly cracked and ultimate one, density, and reducing extruding pressure.
社団法人日本建築学会の論文
2002-07-30