ASR expansion behavior of recycling waste fine aggregates in concrete

• Main Authors: Shao-kang Yu, 俞紹康
• Other Authors: Chau Lee
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/49159697765757786906

碩士 === 國立中央大學 === 土木工程研究所 === 99 === Recently, people study in replace natural aggregates with waste in cement concrete. Recycling of green waste issues, while also saving waste disposal costs, reduce environmental burden. For silicon-rich to re-use of recycled materials in concrete, the need to pay attention to possible alkali-silica reaction (ASR) problems. In this study, EPA announced the first domestic waste is divided into five categories: slag, glass, ceramic waste, lightweight aggregates, and sand casting scrap. The use of ASTM C289, C227, and C1260 measurement methods to identify potential in ASR activity. Research include: 1. Taiwan’s existing silicon-rich waste ASR activity survey results. 2. Activity of recycled aggregates in ASR expansion effect of peak activity(Pessimum Effect). 3. Proposed activity of recycled aggregates of the problems in habiting ASR method. 4. Before apply furnace slag need to confirm the volume stability.