Study of Biomass Calcite as Fine Aggregate of Concrete

• 作者: WANG Jian YU Yan
• 来源期刊: 结构化学
• 学科: 工学
• 关键词: 混凝土拌合物 废弃生物质 方解石 细集料 X射线衍射 牡蛎壳 压缩强度 微观结构
• 年，卷（期）: 2012,（12）
• 页码范围: 1861-1867
• 页数: 7页
• 分类号: TU528.062|TQ517
• 语种: 英文

摘要

The possibility of using crushed oyster shell to partly replace the fine aggregate of concrete was evaluated. The compressive strength and slump of concrete mixture with different amount of crushed oyster shell were tested and thus the appropriate dosage was determined. Additionally, the compatibility with super plasticizer and the stability in NazSO4 solution were also discussed to prove the feasibility of oyster shell as fine aggregate of concrete. The microstructure of concrete was observed with XRD and SEM techniques. This research provides the basis for the application of waste biomass calcite.