Structure of zeolite cannot be destroyed by alkalinity in portland cement paste at normal temperature, pozzolanic activity of zeolite_tuff is from amorphous SiO 2 and Al 2O 3 therein.
用化学的、物理的和物化的方法证明 ,沸石凝灰岩中的沸石是热力学稳定的物质 ,硅酸盐水泥中碱度在常温下不足以破坏沸石的结构。
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