大体积补偿收缩混凝土中的延迟钙矾石生成现象——答游宝坤同志的质疑  

Delayed ettringite formation in massive shrinkage-compensating concrete-Reply to the discuss of You Baokun

作　　者：阎培渝[1] 彭江[1] 陈广智 

机构地区：[1]清华大学土木水利学院,北京100084

出　　处：《混凝土》2002年第1期17-18,共2页Concrete

基　　金：国家自然科学基金资助项目 (No5 98780 2 7)

摘　　要：针对游宝坤同志对我们的试验结果和观点提出的质疑 ,基于近期的工作结果 ,就大体积补偿收缩混凝土内部延迟钙矾石生成及其影响进行讨论。大体积补偿收缩混凝土内部存在延迟钙矾石生成现象 ,是否引起膨胀 ,由结构内部条件决定。Based on our recent researching results,delayed ettringite formation (DEF) in massive shrinkage compensating concrete and its influence on the concrete properties are discussed to reply Mr.You's oppugnations.We confirm that there is DEF in massive shrinkage compensating concrete. Whether is volume expansion induced by DEF is determined by the inner condition of concrete structure.The potential risk of DEF in massive shrinkage compensating concrete should be evaluated seriously.

关 键 词：大体积补偿收缩混凝土 钙钒石 生成 膨胀 

分 类 号：TU528.55[建筑科学—建筑技术科学]