混凝土多因素损伤的复合效应研究  

An Insight into the Behaviour of Concrete under Complicated Conditions

作　　者：张小冬[1] 

机构地区：[1]江苏博特新材料有限公司,江苏南京210008

出　　处：《江苏建筑》2011年第1期90-93,共4页Jiangsu Construction

摘　　要：文章研究了混凝土在冻融循环、化学腐蚀等作用下的普遍劣化规律,分析了多个劣化作用同时作用下的交互作用,建立了相应的劣化模型,提出了劣化程度的定义。根据劣化模型,建立了多因素复合劣化作用下混凝土使用寿命的预测方法。In this paper,the common rule of the degradation of concrete subjected to the simultaneous action of freeze-thaw cycles,chemical corrosion is investigated.The interaction between different actions is analysed as well.Based on the investigation,a new concept,degradation index,is defined to assess the deterioration of concrete.Also,a model is proposed to calculate the degradation index of concrete under complicated conditions,which can be used to predict the life-span of concrete.

关 键 词：混凝土 耐久性 多因素 寿命预测 

分 类 号：TU528[建筑科学—建筑技术科学]