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| 用海盐石膏制备硅酸盐水泥缓凝剂和增强剂的研究 |
| Study of the Manufacture of Silicate Cement Retarder and Reinforcer from Sea Slat Gypsum |
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| DOI： |
| 中文关键词: 盐石膏 石膏 煅烧石膏 增强剂 缓凝剂 |
| 英文关键词: bunt gypsum gypsum salt-gypsum strengthened agent retarding agent |
| 基金项目:江苏省教委1997年度自然科学基金[苏教财(1997)99号] |
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| 中文摘要: |
| 在分析、测定了海盐石膏的化学组成和矿物组成及热特性的基础上,研究了不同煅烧条件下制备的改性海盐石膏对硅酸盐水泥主要性能的影响。结果表明:改性海盐石膏既明显地提高水泥的早期强度和略提高水泥的后期强度,还能十分明显地提高高掺量混合材水泥的强度,且水泥的凝结时间正常。制备的最佳工艺参数是:煅烧温度800C为左右,煅烧时间为0.5～1h。 |
| 英文摘要: |
| On the basis of analysis and determination of the chemical, mineral composition and thermal properties of slat-gypsum, the effect of various burnt salt-gypsum on primary properties of Portland cement is investigated. The resultes show- that salt-gypsum burnt at 800C,0. 5--1h can increases the early strength significently and the later strength slightly of Portland cement, and also develops the strength of the cement added largely slag and fly-ash. The setting time is proper. |
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