碱度对脱硫建筑石膏性能的影响
发布时间：2019-08-07 13:42
【摘要】：研究了不同碱度的氢氧化钙(CH)溶液和氢氧化钠(NH)溶液对脱硫建筑石膏凝结时间、2 h强度的影响,并通过水化温升、XRD和SEM技术探索了其影响机理。结果表明:在拌合水p H值为7.6~12.0内,随着碱度的提高,脱硫建筑石膏的初凝、终凝时间都明显缩短;在p H值为9.0左右时,2种水化环境中脱硫建筑石膏的抗折、抗压强度性能都最佳;碱性环境还改变了二水石膏的结晶相变热、结晶化程度、结晶形态和密实程度。
[Abstract]:The effects of different alkalinity of calcium hydroxide (CH) solution and sodium hydroxide (NH) solution on the setting time and 2 h strength of desulphurization building gypsum were studied, and the mechanism of the effect was explored by hydration temperature rise, XRD and SEM technology. The results show that when the pH value of mixed water is 7.6 鈮，
本文编号：2523993
[Abstract]:The effects of different alkalinity of calcium hydroxide (CH) solution and sodium hydroxide (NH) solution on the setting time and 2 h strength of desulphurization building gypsum were studied, and the mechanism of the effect was explored by hydration temperature rise, XRD and SEM technology. The results show that when the pH value of mixed water is 7.6 鈮，
本文编号：2523993
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