杂散电流干扰下掺矿物掺合料水泥石固化氯离子的特点

The characters of cement hardened paste with mineral admixtures binding chloride ion under the condition of stray current interfering

采用加载杂散电流、内掺氯化钠和化学滴定等试验方法,通过比较有杂散电流和无杂散电流两种情况下掺粉煤灰和矿渣微粉水泥石中固化态氯离子含量变化的差异,研究了杂散电流干扰下掺矿物掺合料水泥石固化氯离子的特点.结果表明:在上述两种条件下,矿物掺合料均对水泥石固化氯离子的能力有促进作用,杂散电流会对水泥石内部固化态氯离子的稳定性产生不良影响,矿物掺合料具有抑制这种不良影响的作用.

In the present investigation, the characters of cement hardened paste with mineral admixtures binding chloride ion was researched under the condition of stray current interfering, which by contrasting the content differences of binding chloride ion between the condition of loading stray current and not. Various methods were used to research such as loading stray current, inner mixed sodium chloride and chemical titration. The results indicate that the quality of binding chloride of cement hardened pastes can be improved by using fly ash and slag under condition of loading stray current and not. There is no good effect of stray current on the quality of binding chloride of cement hardened pastes, but this effect can be reduced by using mineral admixtures.