干法脱硫灰对水泥性能的影响研究

关键字：干法脱硫灰,半水亚硫酸钙,水泥,性能

（1.中国建筑材料科学研究总院，绿色建筑材料国家重点实验室，北京  100024；2.四川峨胜水泥集团股份有限公司，四川 峨眉  614222；3.福建龙净脱硫脱硝工程有限公司，福建 龙岩  364000）

    摘要：研究了干法脱硫灰对多种水泥凝结时间、力学性能、安定性、外加剂相容性等性能的影响。结果表明，以CaSO3·1/2H2O为主要成分的干法脱硫灰有显著的缓凝效果；干法脱硫灰在一定掺量范围内对水泥熟料强度具有激发作用，尤其后期强度增长明显；应用聚羧酸系减水剂时，脱硫灰体系有较好的外加剂相容性。
    关键词：干法脱硫灰；半水亚硫酸钙；水泥；性能
    中图分类号：TU528.09        文献标识码：A        文章编号：1001-702X（2017）03-0114-04

Influence of dry flue gas desulfurization byproduct on cement performances
LIU Yaojun1，DENG Lei2，WANG Lan1，SU Qingfa3，WU Muzheng3
（1.China Building Materials Academy，State Key Laboratory of Green Building Materials，Beijing 100024，China；2.Sichuan Esheng Cement Group Co. Ltd.，Emei 614222，China；3.Lonjing Environment Technology Co. Ltd.，Longyan 364000，China）

    Abstract：The effects of dry flue gas desulfurization byproduct on the setting time，mechanical properties，stability，compatibility of additives and other properties of the cement were studied. The results show that the desulfurization ash with CaSO3·1/2H2O as the main component has a significant retarding effect，within a certain range of dosage，dry flue gas desulfurization byproduct has an excitation effect on the strength of cement，especially for the later strength growth；when with polycarboxylate water reducer applied in the cement，dry flue gas desulfurization byproduct has good compatibility with them.
    Key words：dry flue gas desulfurization byproduct，CaSO3·1/2H2O，cement，performances