PHOSPHOROUS SLAGS IMPACT ON THE ANTI-CRACK PERFORMANCE OF MASS VOLUME CONCRETE

摘要：

At present,phosphorous slag is refrained from being used in mass volume concretedue to the uncertainties of its anti-crack performance. The most concerned problem,crackresistance,is studied based on the tests with single phosphorous slag and flying ash addedrespectively and compositely. Considering the retarding effect,hydration heat and otheraspects,an anti-crack index,KL,is suggested to comprehensively estimate the crackresistance of mass volume concrete. The crack resistance of phosphorous slag concrete isdivided into three stages,early hazardous stage,middle growth stage and later mature stage.Besides,it is analyzed on the mechanism of phosphorous slag performances and its impact onconcrete crack resistance,and the tests results provide a theoretical basis for phosphorousslags application in mass volume concrete.

关键词： mass volume concrete anti-crack performance phosphorous slag flying ash anti-crack index

作者: Zengli Chenxia Ge Xueliang Wu Dingyan Zhou Qifan

作者单位: States Key Laboratory of Water Resource and Hydropower Engineering Science,Wuhan University,Wuhan,430072,PR China

会议类型: 国际会议

会议名称: The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 480-487

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）