摘要
利用室内土工直剪实验设备 ,在常温常压下 ,对不同水化学溶液、作用不同时间后的砼块进行了剪切实验 ,结果表明 :①水—砼块相互作用之力学效应包括物理和化学两方面 ,其表现为水化学作用后砼块剪切面上的剪切强度增大或减小 ;②水—砼块化学作用之剪切强度力学效应具有显著的时间效应 ;③水—砼块相互作用前后砼块剪切面上的抗剪强度及因水化学作用而导致剪切面上的抗剪强度的增量均较好地满足摩尔—库仑强度准则 ;文中最后从摩尔—库仑定律出发 ,推导并给出了水砼 (岩土体 )化学作用对砼 (岩土体 )正。
The shear strength effects of chemical kinetics of concrete are tested after reacting with different aqueous chemical solutions at normal temperature and atmospheric pressure.The results show: ①The shear strength effect of water on concrete is not only related to the physical action, but also to the chemical action;②The shear strength effect of the chemical action of water on concrete is time-dependent; ③The shear strength and the strength increments of concrete are both obeying to Mohr-Coulomb rule before and after the water-concrete action. Finally, the quantitative formula to determine the plus or minus effects of water-concrete is derived based on the Mohr-Coulomb rule.
出处
《中山大学学报(自然科学版)》
CAS
CSCD
北大核心
2002年第2期89-92,共4页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金资助项目 (5 97790 19)
广东省自然科学基金资助项目 (970 12 7)