抑制杂散电流对水泥石固化氯离子能力的影响

Experimental Study of Binding Capability of Chloride Ion under Stray Current in Cement Hardened Paste Admixed with Fly Ash

摘要:

分别对有杂散、无杂散电流影响下掺粉煤灰水泥石氯离子固化能力进行了研究.结果表明:杂散电流对固化氯离子的稳定性有一定的影响,能够将水泥石中固化状态的氯离子转化成游离状态的氯离子;粉煤灰的掺入对于抑制杂散电流对固化氯离子稳定性的影响有一定作用,在粉煤灰掺量范围(0~50%)内,随着粉煤灰掺量的增加,固化状态的氯离子向游离状态转变的数量依次减小,且随着龄期的增长,这种作用愈加明显.

Abstract:

The characteristic of binding capability of chloride ion in cement hardened paste admixed with fly ash were researched under natural condition and stray current.Results indicate that the stray current have effect on the stability of binding chloride ion,which could be transformed to the dissociative chloride ion;the effects that the stray current affects the stability of bonding chloride ion that could be weakened by fly ash admixed.With the increase of fly ash,the amount of the transformation is decreased,and with the age grown,this effect is more significant.