There is no dissociative ch and bigger porosity existing in hardened mortar , depended on the testing results of xrd and sem , and this entire characteristic expresses its excellent anti - penetrability and durability Xrd 、 sem检验结果表明硬化砂浆中没有游离的caph人存在，结构致密，预示其有好的抗渗性能和耐久性能。
