リサイクルⅡ／サステナビリティ(環境側面)

[1304] STRENGTH CHARACTERISTICS AND EFFECTIVE CHLORIDE DIFFUSION COEFFICIENT OF RUBBERIZED CONCRETE

座長(土木)：堀口賢一
座長(建築)：黒田泰弘
講演者：Nurazuwa MD NOOR¹, 濵田秀則², 佐川康貴², 山本大介² (1.Kyushu University 2.九州大学)

キーワード：air content, chloride ion diffusion coefficient, Rubberized concrete, strength

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In this study, crumb rubber was used as fine aggregate at 10%, 15% and 20% sand volume replacement to produce rubberized concrete with satisfied compressive strength. Rubberized concrete was tested on its fresh properties, mechanical strength and effective diffusion coefficient of chloride ion. In addition, silica fume as 10% of cement was added to investigate the effect on the strength and resistance against chloride penetration. Results shows mechanical strength reached to the acceptable value for satisfied strength as structural concrete and chloride ion resistance was improved with silica fume.