摘要
以"覆盖率"和"填充深度"来评价水泥基材料因干缩裂缝的"愈合效应"这一特性的存在性并描述了裂缝的愈合过程以及模型,同时用SEM扫描电镜观察试样裂缝两侧水化产物形貌的变化。研究表明:在一定的条件下,水泥基材料的裂缝有愈合的可能,其愈合的发展趋势可由覆盖率和填充深度随愈合期变化的规律来描述。这主要是由于未水化水泥颗粒的继续水化以及碳酸钙的沉淀的结果。
The rate of surface coating and depth of cracking closure were determined to demonstrate the potential for autogenous healing and to characterize the corresponding healing process and healing mode of cracking in the cement based cement due to the drying shrinkage.And the morphology of dehydration in the crack flank was observed by SEM.Results showed that to a certain extent,there was a potential for autogenous healing,and the healing tendency could be described by the rate of surface coating and depth of cr...
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2008年第4期26-28,共3页
Journal of Wuhan University of Technology
关键词
水泥基材料
裂缝
自愈合效应
覆盖率
填充深度
cement based material
cracks
autogenous healing
rate of surface coating
depth of cracking closure
