利用烧结脱硫灰-高炉矿渣-水泥熟料制备胶凝材料

为了解决炼铁高炉矿渣、脱硫副产物大量堆积产生的环境问题,实验中利用钢渣、脱硫灰及水泥熟料制备复合胶凝材料.在加水预处理的条件下,随着脱硫灰掺量的增加,胶凝材料的强度呈先增加后变小的趋势,当脱硫灰的氧化温度为550℃、氧化时间为30 min以及掺量为5%时所制得的胶凝材料可获得较好的反应性能.该胶凝材料强度能够达到GB 1344-1999中52.5R水泥强度的要求.

Preparation of cementitious materials with sintering desulfurization ash,blast furnace slag and cement clinker

To solve the problems of environmental pollution caused by blast furnace slag and desulfurizationsintering flue gas (FGD) ash, a composite cementitious material was prepared using steel slag, sintering FGD ash and cement clinker. The results show that with the amount of sintering FGD ash increasing, the strength of the cementitious material increases firstly and then decreases. When the oxidation temperature of sintering FGD ash is 550℃, the oxidation time is 30 min and the added amount is 5%, the cementitious material achieves excellent reaction performance. The strength of the cementitious material can meet the requirement of 52.5R cement strength in Chinese IndustrialStandards GB 1344——1999.