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本文对6种不同的粉煤灰与1种矿渣的物理化学性能进行了表征,研究了粉煤灰的化学成分组成、活性及灰体细度对碱激发粉煤灰/矿渣复合体系的凝结时间和强度的影响。实验结果表明,粉煤灰中钙、铁与活性铝含量是影响体系凝结时间的重要因素,钙、铁、活性铝含量越高,体系的凝结时间越短;活性铝含量与灰体细度是影响体系强度的重要因素,活性铝含量越高,灰体越细,体系强度越高。
In this paper, the physical and chemical properties of six kinds of fly ash and one kind of slag were characterized. The effects of chemical composition, activity and fineness of fly ash on the setting time of alkali-activated fly ash / slag composite system And the impact of strength. The experimental results show that the content of calcium, iron and active aluminum in fly ash is an important factor affecting the setting time of the system. The higher the contents of calcium, iron and active aluminum, the shorter the setting time of the system. The content of active aluminum and the fineness of the gray body are Affect the strength of the system an important factor, the higher the active aluminum content, the smaller the gray body, the higher the system strength.