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| 单环芳烃型高效减水剂对水泥水化浆体微观影响 | |
| 引用本文： | 赵晖,邓敏,吴晓明,高波.单环芳烃型高效减水剂对水泥水化浆体微观影响[J].土木与环境工程学报,2009,31(3):130-135. |
| 作者姓名： | 赵晖 邓敏 吴晓明 高波 |
| 作者单位： | 1. 江苏交通科学研究院,南京,211112;南京工业大学,材料科学与工程学院,南京,210004 2. 南京工业大学,材料科学与工程学院,南京,210004 3. 江苏交通科学研究院,南京,211112 |
| 基金项目： | 西部交通建设科技项目 |
| 摘 要： | 从水化热、水化产物、水泥浆体孔隙结构、微观结构变化4个方面,研究了单环芳烃型高效减水剂对水泥水化反应的影响.使用TAM Ai进行水化热测定表明,掺加单环芳烃型高效减水剂可延缓水泥初期水化和明显降低水化热,MRI分析表明同龄期的掺单环芳烃型高效减水剂水泥浆体与空白样相比孔隙总体积与总孔隙率都有增加的趋势,水泥浆体孔径分布变化不大.XRD、TG-DTA、SEM分析表明掺加单环芳烃型高效减水剂抑制水泥水化过程中水化产物Ca(OH)<,2>和水化硅酸钙产生,不影响水化产物与水化过程最终结果,掺加单环芳烃型高效减水剂使氢氧化钙、钙矾石与C-S-H等水泥水化产物细化. |
| 关 键 词： | 微观结构 单环芳烃型 高效减水剂 水泥水化 |
| 收稿时间： | 2008/10/28 0:00:00 |
Influence of Monocylic Aromatic High Range Water-reducer on Hydration and Microstructure of Cement Pastes |
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| ZHAO Hui,DENG Ming,WU Xiao ming and GAO Bo.Influence of Monocylic Aromatic High Range Water-reducer on Hydration and Microstructure of Cement Pastes[J].Journal of Civil and Environmental Engineering,2009,31(3):130-135. | |
| Authors: | ZHAO Hui DENG Ming WU Xiao ming and GAO Bo |
| Affiliation: | 1.Jiangsu transportation Research Institute;Nanjing 211112;P.R.China;2.College of materials science and engineering;Nanjing University of technology;Nanjing 210024;P.R.China |
| Abstract: | The influences of the monocyclic aromatic high range water reducers on cement hydration were evaluated from four factors,such as hydration heat,hydration products,pore structure,microstructures of cement pastes.With measurement of hydration heat by the TAM Ai,it was found that monocyclic aromatic high range water reducer may delay early hydration and significantly decreased early hydration heat.And the monocyclic aromatic high range water reducers tended to increase porosity and pore volume of cement pastes... |
| Keywords: | microstructure single-ring aromatic high range water reducer hydration |
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