| Study on Modification of Amino-sulfonic Acid-based Water-reducer |
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| 引用本文： | ZHANG Zi-qiang,QIAN Zhong-qiu,RAO Xiao-yu,DING Hong. Study on Modification of Amino-sulfonic Acid-based Water-reducer[J]. 保鲜与加工, 2007, 0(2): 116-118127 |
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| 作者姓名： | ZHANG Zi-qiang QIAN Zhong-qiu RAO Xiao-yu DING Hong |
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| 作者单位： | 1. College of Materials Science and Engineering, Chongqing University, Chongqing 400045, China; 2. Changzhou Construction Research Institute Co. Ltd, Changzhou 213015, China; 3. College of Architecture and Civil Engineering, Xihua University, Chengdu 6100 |
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| 摘 要： | Amino-sulfonic acid-based water-reducer is characterized by high water-reducing rate and restraining the concrete mixture from slump loss with time. The application of amino-sulfonic acid-based waterreducer in concrete mixture was restricted due to its high bleeding. Based on principles of molecular design, the traditional superplasticizer of aminosulfonic acid series was modified by the suitable functional group introduced by monomer A and monomer U. The effects of such product on the fluidity, fluidity loss with time and bleeding rate of cement paste were tested. It was found that the modifying effect of monomer A for the superplasticizer was better than that of monomer U. The dispensability and flow retainability of superplasticizer were strong and the bleeding rate of cement paste added with superplasticizer modified by 9% monomer A was reduced obviously.
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| 关 键 词： | aminosulfonic acid series modification high performance superplasticizer |
| 修稿时间： | 2006-11-24 |
Study on Modification of Amino-sulfonic Acid-based Water-reducer |
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| ZHANG Zi-qiang,QIAN Zhong-qiu,RAO Xiao-yu,DING Hong. Study on Modification of Amino-sulfonic Acid-based Water-reducer[J]. Storage & Process, 2007, 0(2): 116-118127 |
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| Authors: | ZHANG Zi-qiang QIAN Zhong-qiu RAO Xiao-yu DING Hong |
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| Affiliation: | 1. College of Materials Science and Engineering, Chongqing University, Chongqing 400045, China; 2. Changzhou Construction Research Institute Co. Ltd, Changzhou 213015, China; 3. College of Architecture and Civil Engineering, Xihua University, Chengdu 6100 |
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| Abstract: | Amino-sulfonic acid-based water-reducer is characterized by high water-reducing rate and restraining the concrete mixture from slump loss with time. The application of amino-sulfonic acid-based waterreducer in concrete mixture was restricted due to its high bleeding. Based on principles of molecular design, the traditional superplasticizer of aminosulfonic acid series was modified by the suitable functional group introduced by monomer A and monomer U. The effects of such product on the fluidity, fluidity loss with time and bleeding rate of cement paste were tested. It was found that the modifying effect of monomer A for the superplasticizer was better than that of monomer U. The dispensability and flow retainability of superplasticizer were strong and the bleeding rate of cement paste added with superplasticizer modified by 9% monomer A was reduced obviously. |
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| Keywords: | aminosulfonic acid series modification high performance superplasticizer |
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