| 高保坍型聚羧酸系高性能减水剂的研制及性能 |
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| 引用本文： | 陈国新,杜志芹,沈燕平,徐唯唯,杨日,祝烨然. 高保坍型聚羧酸系高性能减水剂的研制及性能[J]. 新型建筑材料, 2012, 39(3): 81-82,88 |
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| 作者姓名： | 陈国新 杜志芹 沈燕平 徐唯唯 杨日 祝烨然 |
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| 作者单位： | 南京水利科学研究院瑞迪高新技术公司,江苏南京,210024 |
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| 摘 要： | 研究开发了一种高保坍型聚羧酸系高性能减水剂,能够有效减小新拌混凝土坍落度损失。通过混凝土试验表明,合成的高保坍型聚羧酸系高性能减水剂TB在低掺量下即具有优异的坍落度保持性能,水泥适应性好,在中、小坍落度混凝土中使用依然具有良好的保坍性能,但减水率略低于普通聚羧酸系减水剂,两者复掺使用则综合性能良好。
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| 关 键 词： | 聚羧酸系减水剂 保坍性 合成 混凝土 |
Preparation and performance of polycarboxylate superplasticlzer with high slump retention capability |
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| CHEN Guoxin , DU Zhiqin , SHEN Yanping , XU Weiwei , YANG Ri , ZHU Yeran. Preparation and performance of polycarboxylate superplasticlzer with high slump retention capability[J]. New Building Materials, 2012, 39(3): 81-82,88 |
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| Authors: | CHEN Guoxin DU Zhiqin SHEN Yanping XU Weiwei YANG Ri ZHU Yeran |
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| Affiliation: | (Nanjing Hydraulic Research Institute,Nanjing R & D High Technology Co.Ltd.,Nanjing 210024,Jiangsu,China) |
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| Abstract: | A new type of polycarboxylate superplasticizer with high slump retention capability was prepared which can reduce the slump loss of concrete mixture.The results of concrete test show that the polycarboxylate superplasticizer we prepared(TB) has good cement compatibility and excellent slump retention capability even in low dosage,and its slump retention capability is also excellent in concrete with small slump.But its water reducing rate is slightly less than ordinary polycarboxylate superplasticizer,which can be compensated by blending these superplasticizers mentioned. |
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| Keywords: | polycarboxylate superplasticizer slump retention capability synthesis concrete |
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