脱硫灰用作钙质材料制备蒸压加气混凝土砌块  

作　　者：梁宝瑞[1] 宋存义[1] 毛妍妮[1] 孙鹏辉[2] 赵荣志[1] 常冠钦[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]首钢总公司环保产业事业部,北京100041

出　　处：《加气混凝土》2012年第3期19-22,共4页

摘　　要：为实现半干法脱硫灰的资源化利用，采用半干法脱硫灰作为蒸压加气混凝土砌块中的钙质材料。对脱硫灰进行预处理，使其在含水量20％条件下消化2h后，烘干。在其他条件不变情况下．掺人经过预处理后的脱硫灰，砌块的抗压强度会有明显的提高。增加经过预处理后的脱硫灰的掺入量，可以在不影响砌块的抗压强度性能的基础之上，降低砌块的干燥收缩值和导热系数，同时提高砌块的抗冻性能和保温隔热性能。In order to realize the utilization of resource, semi-dry FGD ash was used to manufacture the autoclaved aerated concrete as calcareous material. The desulfurization ash was pretreated by storing followed by digestion for 2 h when the rate of water content was 20%.When the pretreated desulfurization ash was incorporated, the compres- sive strength of blocks was significantly improved. With the increase of the radio of pretreated desulfurization ash, the drying shrinkage and thermal conductivity of the block reduced,without affecting the compressive strength of the block.

关 键 词：脱硫灰 蒸压加气混凝土砌块:抗压强度 

分 类 号：TU522.32[建筑科学—建筑技术科学]