| 掺黏度改性剂与减水剂水泥浆的zeta电位研究 |
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| 引用本文： | 钟世云,李晋梅,韩冬冬,倪坤.掺黏度改性剂与减水剂水泥浆的zeta电位研究[J].建筑材料学报,2012(6):735-740. |
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| 作者姓名： | 钟世云 李晋梅 韩冬冬 倪坤 |
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| 作者单位： | 同济大学先进土木工程材料教育部重点实验室，上海201804;同济大学先进土木工程材料教育部重点实验室，上海201804;同济大学先进土木工程材料教育部重点实验室，上海201804;同济大学先进土木工程材料教育部重点实验室，上海201804 |
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| 摘 要： | 采用zeta(ζ)电位仪研究了黏度改性剂(VMA)、减水剂单掺以及VMA与减水剂复掺对水泥浆ζ电位的影响.结果表明:由于水泥粒子吸附VMA或减水剂分子,因此单掺VMA或减水剂水泥浆ζ电位降低.VMA与聚羧酸系减水剂(PC)同掺水泥浆表现出来的主要是水泥粒子吸附PC分子后的ζ电位特性;VMA与萘系减水剂(NF)同掺水泥浆ζ电位绝对值比单掺NF水泥浆低.无论是滴加PC到掺VMA水泥浆中还是滴加VMA到掺PC水泥浆中,水泥浆ζ电位都有所提高;VMA的加入使得掺NF水泥浆的ζ电位升高,但仍低于两者同掺水泥浆的ζ电位;在掺VMA水泥浆中,当NF滴加量达到一定值时,水泥浆ζ电位绝对值甚至高于两者同掺水泥浆ζ电位绝对值.
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| 关 键 词： | 黏度改性剂 减水剂 ζ电位 吸附 |
| 收稿时间： | 2011/6/13 0:00:00 |
| 修稿时间： | 8/1/2011 12:00:00 AM |
Study on Zeta Potential of Cement Pastes with Viscosity Modifying Admixtures and Superplasticizers |
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| ZHONG Shi yun,LI Jin mei,HAN Dong dong and NI Kun.Study on Zeta Potential of Cement Pastes with Viscosity Modifying Admixtures and Superplasticizers[J].Journal of Building Materials,2012(6):735-740. |
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| Authors: | ZHONG Shi yun LI Jin mei HAN Dong dong and NI Kun |
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| Affiliation: | Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804,China;Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804,China;Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804,China;Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804,China |
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