摘要
通过自行设计与研制的测量混凝土早期冻胀应力的设备,测量出基准混凝土在-5,-10,-15℃时早期的冻胀应力并且得出早期冻胀应力及强度的发展规律,进而来探讨混凝土冻胀应力对混凝土强度的影响;研究了冻结温度,防冻组分和引气组分对负温混凝土冻胀应力和强度的影响。
In this study the equipment was designed and developed by ourselves, early-age frozen-heave stress of reference concrete at subzero temperature was measured at the frozen temperature of-5, -10 and -15℃ by it,the rule of early-age frost-heave stress and the compressive strength were obtained and the effects of the frozen-heave stress on the compressive strength was researched;The effects of the freezing temperature, anti-freezing agent and air-entraining agent on the frozen-heave and the compressive strength of the concrete at subzero temperature were studied.
出处
《混凝土》
CAS
CSCD
北大核心
2007年第10期1-3,11,共4页
Concrete
基金
国家自然科学基金资助项目(50078019)
关键词
负温混凝土
耐久性
冻胀应力
防冻组分
引气组分
concrete at subzero temperature
durability
frozen-heave stress
anti-freezing agent
air-entraining agent
