补偿收缩混凝土提高港工建筑耐久性的研究与应用

Research and Application of Shrinkage Compensated Concrete to Enhance the Durability of Marine Structures

文中对港工建筑耐久性下降的原因进行了分析并介绍了掺 UEA膨胀剂混凝土的抗裂防渗原理及其性能 ,提出掺膨胀剂的补偿收缩混凝土是提高港工建筑耐久性的一种新途径 ,宜用于水运工程混凝土的闭合块 ,船坞及船台的底板等大体积混凝土 。

The causes of degradation of the durability of marine structures are analyzed and the principle of crack resistance and impermeability of concrete added with UEA expansion agent is presented as well as the performance of such concrete.It is proposed that the shrinkage compensated concrete added with adequate expansion agent is a new way to enhance the durability of marine structures,which should be used in closure blocks in concrete marine works,mass concrete in the floors of docks and slipways,post cast joints and cavity repairs.