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| 同水胶比下高效减水剂对硫铝酸盐型膨胀剂效能的影响 | |
| 引用本文： | 张圣菊,王新刚,何廷树,杨松林.同水胶比下高效减水剂对硫铝酸盐型膨胀剂效能的影响[J].混凝土,2009(7). |
| 作者姓名： | 张圣菊 王新刚 何廷树 杨松林 |
| 作者单位： | 1. 江苏科技大学木与建筑学院,江苏,镇江,212003 2. 江苏科技大学生物与环境工程学院,江苏,镇江,212003 3. 西安建筑科技大学,材料科学与工程学院,陕西,西安,710055 |
| 摘 要： | 详细地研究了在水胶比保持不变的条件下,掺入萘系、氨基及聚羧酸高效减水剂对硫铝酸盐型膨胀剂效能的影响.结果表明:高效减水剂和硫铝酸盐型膨胀剂复合使用时,会降低膨胀剂的限制膨胀率,降低复掺萘系和氰基的自由膨胀率,增大膨胀指数,从而降低其有效膨胀能.因此,在膨胀剂掺量相同的情况下,复合使用高效减水剂会削弱硫铝酸盐型膨胀剂对混凝土的补偿收缩作用或产生的自应力,故高效减水剂与膨胀剂复合使用时,要想达到单掺膨胀剂时的膨胀效果,要适当加大膨胀剂的用量. |
| 关 键 词： | 高效减水剂 膨胀剂 自由膨胀率 限制膨胀率 膨胀指数 |
Influence of superplasticizer on performance of sulfo-aluminate expansion agent at the equal water-binder ratio |
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| ZHANG Sheng-ju,WANG Xin-gang,HE Ting-shu,YANG Song-lin.Influence of superplasticizer on performance of sulfo-aluminate expansion agent at the equal water-binder ratio[J].Concrete,2009(7). | |
| Authors: | ZHANG Sheng-ju WANG Xin-gang HE Ting-shu YANG Song-lin |
| Affiliation: | 1a. School of Civil & Architecture Engineering;b. School of Biology & Environmental Engineering;Jiangsu University of Science and Technology;Zhenjiang 212003;China;3. College of Material Science & Engineering;Xi'an University of Architecture & Technology;Xi'an 710055;Shaanxi |
| Abstract: | The influences of naphthalene series,amino sulfonic and polycarboxylate superplasticizer on the performances of sulfo-aluminate expansive agents were investigated in the same waterbinder ratio systematically.The results showed that superplasticizer used together with sulfo-aluminate expansive agents can reduce restrained-expansion rate of expansive agent,and drop free-expansion rate mixing naphthalene series and amino sulfonic,increase expansion index,so resulting in the reduction of efficient expansion ene... |
| Keywords: | superplasticizer expansive agent free-expansion rate restrained-expansiun rate expansive index |
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