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[1070] EXPERIMENTAL STUDY ON DRYING SHRINKAGE CRACKING CHARACTERISTICS OF STEEL CHIP REINFORCED POLYMER CEMENTITIOUS COMPOSITE

座長(土木)：小澤満津雄
座長(建築)：今本啓一
講演者：洪善熙, 木村真也, 佐藤裕一, 金子佳生 (京都大学)

キーワード：drying shrinkage, fiber reinforced cementitious composite, polymer, reuse, steel chip, スチル―チップ, ポリマー, 乾燥収縮, 再利用, 繊維補強セメント系複合材料

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This study is to clarify the drying shrinkage and shrinkage cracking characteristics of steel chip reinforced polymer cementitious composite (SCRPCC). In this study, free shrinkage of SCRPCC, drying shrinkage and shrinkage cracking of SCRPCC reinforced with deformed bars were examined. Test results shows that (1) the free shrinkage of SCRPCC is smaller than that of polymer cement mortar (PCM) at the outside; (2) the restrained shrinkage of PCM specimens was reduced by reinforcing with steel chip; (3) average crack width of PCM specimen with low reinforcement ratio was greatly declined by reinforcing with steel chip.