为探讨CaCO3晶须对碱激发矿渣的强化机理,本文研究了不同晶须掺量(0％～9％)对碱激发矿渣力学和热稳定性能的影响,研究结果表明:CaCO3晶须可通过减少基体的微裂隙从而显著提高碱激发材料的力学性能;当晶须用量为6％时,强化效果达到最佳,碱激发材料的抗压和抗弯强度分别提高了22.7％和79.9％,另外由于CaCO3晶须在低于650℃时具有较高的热稳定性,因此,在此温度区间内掺加晶须的碱激发材料的热稳定性得到了显著强化.
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