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摘要:
通过物理粉磨、化学激发和物理化学联合激发3种方式系统研究了循环流化床锅炉燃烧脱硫灰（CFBC脱硫灰）物理力学性能的变化规律，并采用水化热，FTIR，XRD和SEM测试方法分析了活化方式对CFBC脱硫灰自硬化水化历程及性能的影响机理.结果表明：物理粉磨、化学激发和联合活化均提高了脱硫灰的自硬强度及水化反应程度，且降低了需水量比.与原状CFBC脱硫灰相比，粉磨后试样需水量比降低了13%（质量分数），7，28d抗压强度分别提高了210.0%，25.4%；改性剂A，B加入后混磨试样需水量比降低了19%，7，28d抗压强度各自提高了337.0%，96.5%.在相同的A掺量下，CFBC脱硫灰与A混合后混磨试样的强度效果优于粉磨后A的外加.CFBC脱硫灰的主要水化产物为AFt，Ca(OH)2，CaSO4·2H2O，C S H凝胶.
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