摘要
实际混凝土材料的力学性能不仅取决于材料组成,还与环境因素有关。通过考察龄期和养护方式对高强混凝土力学性能影响的研究,试验结果表明:混凝土力学性能随环境条件发生变化,尤其是断裂性能,明显受时间和温湿度的影响;随龄期增长,断裂韧性、断裂能均有不同程度降低,并且高强混凝土随龄期的增长脆性增大的倾向更为明显;同时,自然养护较标准养护显著增大了混凝土的脆性。
High strength concrete mechanical properties depend not only on material component but also on environmental factors. With a study on the relation between high strength concrete mechanical properties and age as well as curing condition, the test results show that the concrete mechanical properties vary from conditions. The fracture properties are influenced obviously by time and temperature, as well as humidity. With the age growth, fracture toughness and fracture energy decrease in different degree and brittleness of high-strength concrete increase distinctly. Brittleness of concrete dearly under nature curing than standard curing condition. enlarge more clearly under nature curing than standard curing condition.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2007年第3期427-430,共4页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金资助项目(59778053:混凝土强度尺寸效应的研究)
关键词
高强混凝土
力学性能
龄期
养护方式
high strength concrete
mechanical properties
age
curing condition
