异常粉煤灰原因分析和检测方法研究  

Research on the detection method and analysis of abnormal fly ash

作　　者：林茂松[1,2] 杨利香[1,2] 施钟毅[1,2] 汤立杰[1,2] 

机构地区：[1]上海市建筑科学研究院,上海200032 [2]上海工业固体废弃物资源化利用工程技术研究中心,上海200032

出　　处：《新型建筑材料》2016年第9期5-7,13,共4页New Building Materials

基　　金：上海市科学技术委员会基金项目(14231201400)

摘　　要：针对应用过程中发现的异常粉煤灰,对比研究了其基本性能和化学组成,深入分析了导致粉煤灰异常的原因,粉煤灰氨味为脱硝工艺异常导致铵盐残留,配制混凝土冒泡和体积膨胀为粉煤灰中掺入垃圾焚烧灰渣等其它含有单质铝组分所引起;提出异常粉煤灰相应指标的表征检测方法,可为粉煤灰的质量控制与安全利用提供技术支撑。The basic properties and chemical composition and the cause of abnormal fly ash found in the application were researched. The ammoniacal odour of fly ash is caused by the anomaly of denox technology. The bubbling and expansion of con- crete containing abnormal fly ash is caused by the aluminum which may introduced by the municipal solid waste ash. The detec- tion methods of abnormal fly ash have been put forward, providing technical support for the safe control and utilization of fly ash.

关 键 词：粉煤灰 氨味 膨胀 检测方法 

分 类 号：TU528.041[建筑科学—建筑技术科学]