不同改性剂对橡胶砂浆抗渗性能的影响

Influence of different modifiers on impermeability of rubber mortar

本文以掺杂改性橡胶粉水泥砂浆为研究对象,研究橡胶粉的不同改性方法、橡胶粉掺入量、橡胶粉粒径等因素对橡胶砂浆力学性能、抗渗性能等的影响。试验表明,NaOH和CCl_4对橡胶粉都具有一定的改性效果;当水胶比为0.55,掺入由CCl_4改性的80目橡胶粉,掺量为4%时,橡胶砂浆的强度、抗渗性最佳。

The influence of different modification methods of rubber powder, the amount of rubber powder and the particle size of rubber powder on the mechanical properties and impermeability of rubber mortar were investigated. The experimental research shows that both NaOH and CCl_4 have certain modification effect on rubber powder. When the water cement ratio is 0.55, the strength and impermeability of the rubber mortar are best when the 80 mesh rubber powder modified by CCl_4 is added to 4%.