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.
出处
《江苏建筑》
2011年第1期90-93,共4页
Jiangsu Construction
关键词
混凝土
耐久性
多因素
寿命预测
concrete
durability
multi-factor
service-life prediction
