摘要
为研究海水对混凝土断裂能及强度的影响,通过三点弯曲试验和稳定的楔形劈裂试验对海水浸泡混凝土、水浸泡混凝土和全干燥混凝土试件进行测试,并利用CONSOFT软件对三组试件的力-变形曲线进行拟合。与水浸泡混凝土的断裂能和强度作了相应对比。试验表明海水使浸泡后的混凝土断裂能减少,其强度也随之降低。从表面能及表面张力的观点分析了断裂能和强度降低的原因。
To clarify the influence of seawater on the fracture energy and strength of concrete, three-points bending test and wedge splitting test are used to determine the fracture energy in seawater saturated concrete, water saturated concrete and dry concrete. Load-displacement curves are fitted through the CONSOFT software.Experiment indicts that fracture energy and strength all decrease after saturated in seawater, as a contrast to the water-saturated concrete, Explain that fracture energy and strength decrease from the viewpoint of surface energy and surface tension.
出处
《混凝土》
CAS
CSCD
北大核心
2007年第7期9-10,13,共3页
Concrete
基金
国家自然基金项目(50378045)
关键词
断裂能
强度
海水浸泡混凝土
表面能
fracture energy
strength
seawater-saturated concrete
surface energy
