氨基酸类缓凝剂对脱硫石膏水化的影响

关键字：氨基酸,缓凝剂,脱硫石膏,凝结时间,流动度

（上海尚南贸易有限公司，上海 　200003）

　　　　摘要：研究了不同氨基酸类缓凝剂对β型半水脱硫石膏水化的作用效果。结果表明，缓凝剂200P能大幅延长脱硫石膏的初凝和终凝时间，且延长幅度随掺量的提高更为明显；在一定掺量下，几种缓凝剂均能有效提升石膏浆体的初始流动度。
　　　　关键词：氨基酸；缓凝剂；脱硫石膏；凝结时间；流动度
    中图分类号：TU528.042.3        文献标识码：A        文章编号：1001-702X（2017）07-0021-03

Effect of amino acid retarders on the hydration of flue gas desulfurization gypsum
WANG Ying，GAO Luming
（Shanghai Greenchem Trading Co. Ltd.，Shanghai 200003，China）

　　　　Abstract：The effect of different amino acid retarders on the hydration of β-hemihydrate desulfurization gypsum was investigated. The results show that the retarder 200P can immensely prolong the initial setting time and final setting time of gypsum，while its extension range is the most significant with the increasing of dosage. All retarders have good performance on promoting the initial slump flow of the gypsum slurry at a certain dosage.
　　　　Key words：amino acid，retarder，desulfurization gypsum，setting time，slump flow