新型硫氧镁胶凝材料研究+文献综述
关键词: 硫氧镁胶凝材料;水化反应;微观结构;抗压强度
New magnesium oxysulfate cementitious material
Abstract：Thioredoxin magnesium cementitious material possesses a series of the
excellent properties, such as light weight, volume stability, flexural strength, fire
resistance and thermal insulation. Its performance is superior to Magnesium
Oxychloride Cement in water-resistance, environmental protection and non-corrosion
to concrete iron and inhibition the pan-cream, especially when it is used in the
production of decorative and decoration materials. The thioredoxin magnesium
cementitious material were prepared through mixing and stirring with MgO and
MgSO4 used as raw material The effects of temperature, concentration of
magnesium sulfate on strength of magnesium oxysulfate cementitious materials were
studied. XRD and SEM were used to investigate the phase composition and
morphology observation. The results show complex salt has good density. It is benefit
to improve the strength of magnesium oxysulfate cementitious material when the
temperature is at 20-25 ℃ and the curing period is 7d. The present work makes the
beneficial exploration to increase the use of magnesium oxysulfate cementitious
materials. Key words：Thioredoxin magnesium cementitious materials；Hydration reaction；
Microstructure；Compressive strength 目录
1 绪论 1
1.1 课题背景 1
1.2 水泥 . 1
1.3 水泥的分类 1
1.4 镁水泥的分类 2
1.4.1 氯氧镁水泥 . 2
1.4.2 硫氧镁胶凝材料 2
1.5 镁水泥应用 2
1.6 镁水泥国内外研究现状 . 3
1.7 硫氧镁胶凝体系水化机理 . 4
1.8 课题研究的目的与意义 . 5
2 实验部分 7
2.1 实验材料 7
2.2 实验仪器 7
2.3 实验步骤 9
3 结果与讨论. 10
3.1 活性氧化镁的研究 10
3.2 新型硫氧镁胶凝材料的制备 . 10
3.2.1 实验现象和基本配合比的确定 . 11
3.2.2 合成产物相组成研究 12
3.2.3 合成产物的显微结构研究 14
3.2.4 合成产物的强度研究 . 15
（1）MgO：MgSO4•H2O的摩尔比对强度的影响 15
（2）硫酸镁浓度对强度的影响 15
（3）养护温度对强度的影响 17
（4）养护龄期对强度的影响 18
（5）轻烧氧化镁的性能对强度的影响 . 20
4 结论 21
致谢 22
参考文献 23
1 绪论
1.1 课题背景
目前，镁水泥主要用于制作包装材料、玻纤增强瓦、活动板房、仿大理石板、
装饰用复合板、门芯板、烟道、交通设施、养殖用品等领域，因为镁质胶凝材料
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