Recycle Ⅱ/ Sustainability (environmental)

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

Nurazuwa MD NOOR¹, Hidenori HAMADA², Yasutaka SAGAWA², Daisuke YAMAMOTO² (1.Kyushu University 2.九州大学)

Keywords: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.