【摘要】 设计了一套在较低真空度及液氮 饱和盐水浴条件下,对建筑物混凝土中的游离HTO进行解析的实验装置,并研究了可能对解析产生影响的各种实验条件.结果表明:在压力约为0.01MPa条件下,蒸馏温度是影响HTO解析的重要因素,240℃时就能将存在于混凝土中97%以上的游离HTO完全解析出来;而浸润时间、浸润体积及蒸馏时间对HTO解析无显著影响.更多还原

【Abstract】 A set of apparatus, with low vacuum system and a cold bath of liquid nitrogen-saturation solution of NaCl, was designed for distillation of HTO from concrete. The factors influenced the distillation were investigated. The result indicated that temperature was the primary factor effect on distillation of HTO, and more than 97% of free HTO in concrete could be removed when temperature was up to 240℃. However, the others factors, such as soaked time, soaked volume and distillation time, have no obvious effect on this process.更多还原