CAJ | 학술논문

研究了C30、C50和C80SF10在长期浸泡、干湿循环和现场暴露环境下的强度损伤变化规律，测定不同腐蚀时间相对动弹模量，以长期浸泡为标准，分别建立不同暴露试验的损伤加速度和损伤速度与标准环境的转换关系。试验结果表明：混凝土损伤与抗压强度呈反比。与暴露环境相比，长期浸泡和干湿循环都加速了混凝土的损伤，干湿循环更显著；混凝土强度等级与损伤加速度A1和损伤速度A0分别呈正指数和负指数函数关系，混凝土强度等级与损伤加速度的换算系数KA和损伤速度的换算系数KV呈指数函数关系，可通过换算系数和浸泡损伤加速度A1和损伤速度A0预测现场暴露环境和现场暴露-干湿循环环境下的混凝土的相对动弹模量。
연구료C30、C50화C80SF10재장기침포、간습순배화현장폭로배경하적강도손상변화규률，측정불동부식시간상대동탄모량，이장기침포위표준，분별건립불동폭로시험적손상가속도화손상속도여표준배경적전환관계。시험결과표명：혼응토손상여항압강도정반비。여폭로배경상비，장기침포화간습순배도가속료혼응토적손상，간습순배경현저；혼응토강도등급여손상가속도A1화손상속도A0분별정정지수화부지수함수관계，혼응토강도등급여손상가속도적환산계수KA화손상속도적환산계수KV정지수함수관계，가통과환산계수화침포손상가속도A1화손상속도A0예측현장폭로배경화현장폭로-간습순배배경하적혼응토적상대동탄모량。
The variety of C30、C50、C80SF10 damage rule in salt lake brine permanent immersion、wet-dry cycle and salt lake exposure environment was discussed,the model of relative dynamic elastic modulus (Etr)and corrosive time was established.The test results showed that concrete damage tends to vary inversely with concrete compression increase.Comparison to field exposure ,both permanent immersion and dry-wet cycle were all accelerate concrete damage,dry-wet cycle was more apparent.The relationship between concrete strengths grade and the concentration of damage acceleration and damage rate was expressed by exponential function.The relative dynamic modulus of concrete in exposure field or dry-wet cycle and exposure field was predicted by use of convert parameter and damage acceleration and damage rate in permanent immersion.