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| 葡萄糖酸钠与高效减水剂复合使用对水泥水化历程的影响 | |
| 引用本文： | 伍勇华,何廷树,申富强,梁国正,李国新,南峰.葡萄糖酸钠与高效减水剂复合使用对水泥水化历程的影响[J].西安建筑科技大学学报(自然科学版),2008,40(6). |
| 作者姓名： | 伍勇华 何廷树 申富强 梁国正 李国新 南峰 |
| 作者单位： | 1. 西北工业大学理学院,陕西,西安,710072;西安建筑科技大学材料科学与工程学院,陕西,西安,710055 2. 西安建筑科技大学材料科学与工程学院,陕西,西安,710055 3. 西北工业大学理学院,陕西,西安,710072 |
| 基金项目： | 高等学校基础研究基金资助项目 |
| 摘 要： | 用直接测温法及X射线衍射技术,系统研究了葡萄糖酸钠与萘系、氨基磺酸盐系及聚羧酸盐系3种高效减水剂复合使用对水泥水化热、水化温峰、温峰出现时间及不同水化龄期Ca(OH)2和钙矾石(AFt)生成量等方面的影响.结果表明:与糖钙和三聚磷酸钠相比,葡萄糖酸钠及其与高效减水剂复合对水泥水化历程的影响规律明显不同.单掺葡萄糖酸钠使水泥水化第2放热峰出现时间延迟,但温峰值及水化热与空白样基本持平,温峰时的Ca(OH)2生成量增大.复合使用葡萄糖酸钠与高效减水剂时,与不同品种高效减水剂复合使用对水泥水化历程的影响不同. |
| 关 键 词： | 水泥水化 水化温峰 水化热 高效减水剂 缓凝剂 |
Influences of the compounding of sodium gluconate with superplasticizer on the process of cement hydration |
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| WU Yong-hua,HE Ting-shu,SHEN Fu-qiang,LIANG Guo-zheng,LI Guo-xin,NAN Feng.Influences of the compounding of sodium gluconate with superplasticizer on the process of cement hydration[J].Journal of Xi'an University of Architecture & Technology,2008,40(6). | |
| Authors: | WU Yong-hua HE Ting-shu SHEN Fu-qiang LIANG Guo-zheng LI Guo-xin NAN Feng |
| Affiliation: | 1.School of Science;Northwestern Polytechnical University;Xi'an 710072;China;2.School of Materials Sci.and Eng.;Xi'an University of Arch.& Tech.;Xi'an 710055;China |
| Abstract: | By using the direct thermometry and X-ray diffraction technique,the influences of sodium gluconate and the compounding of superplasticizers with sodium gluconate on cement hydration heat,the temperature peak of hydration,the appearing time of temperature peak,and the quantity of Ca(OH)2 and ettringite(AFt)at different age were investigated.Three types of superplasticizers used were naphthalene-based,ammonia-based and polycarboxylicate-based superplasticizers.The results showed that there was apparent differ... |
| Keywords: | cement hydration temperature peak of hydration heat of hydration superplasticizer retarder |
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