荷载条件下加载装置和渗透性测试方法的研究
Loading Device and Study on Testing Method of Permeability Under Loads
关键词:
应力;渗透性;加载装置;测试方法
Key words:
Stress; Permeability; Loading device; Test methods
刊期:
2013年第6期
DOI:
文章编号:
1000-4637(2013)06-70-04
基金项目:
国家重点基础研究发展计划(973计划)项目(2009CB623106)
作者:
孙继成,姚 燕,吴 浩,王 玲
单位:
中国建筑材料科学研究总院,北京 100024
摘要
摘 要:将加载方式分为单轴拉伸荷载和压荷载两种,通过碟簧及应力传感器进行恒载控制,开发出了在应力状态下测试混凝土电通量和扩散系数的装置。将加载一定应力的混凝土试件采用“NEL法”和“电通量法”进行在线渗透性测试,实现了持续荷载下混凝土渗透性的测试。
Abstract: Dividing the loading methods into uniaxial tensile loads and pressure loads, through controlling the dead loads by a disc spring and a stress sensor, a kind of the loading device to test the electric flux and diffusion coefficient of concrete under the stress state has been developed. The online permeability of concrete specimens loaded with a certain stress is tested by "NEL methods" and "chloride electric flux methods", which has realized to rapidly test the permeability of concrete under sustained loads.
结论
参考文献
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