| 复合使用高效减水剂控制大流动性混凝土坍落度损失 |
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| 引用本文： | 何廷树,詹美洲,宋学锋,南峰. 复合使用高效减水剂控制大流动性混凝土坍落度损失[J]. 混凝土, 2001, 0(11): 32-35 |
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| 作者姓名： | 何廷树 詹美洲 宋学锋 南峰 |
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| 作者单位： | 西安建筑科技大学建筑材料研究所,陕西,西安,710055 |
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| 摘 要： | 本文详细研究了单独使用萘系高效减水剂FDN和三聚氰胺树脂系高效减水剂SM，以及复合使用FDN SM对水泥净浆和水泥胶砂扩展度，以及大流动性混凝土坍落度经时损失的影响。结果表明：在总掺量不变的情况下，复合使用高效减水剂FDN SM，可提高高效减水剂与水泥的适应性，大幅度降低水泥净浆和水泥胶砂扩展度，以及大流动性混凝土坍落度的经时损失。
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| 关 键 词： | 大流动性混凝土 复合高效减水剂 坍落度 损失 |
| 文章编号： | 1002-3550(2001)11-0032-04 |
| 修稿时间： | 2001-07-23 |
Control of Slump Loss for high fluidity Concrete by Compounding Superplasticizers |
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| HE Ting shu,ZHAN Mei zhou,SONG Xue feng,Nan Feng. Control of Slump Loss for high fluidity Concrete by Compounding Superplasticizers[J]. Concrete, 2001, 0(11): 32-35 |
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| Authors: | HE Ting shu ZHAN Mei zhou SONG Xue feng Nan Feng |
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| Abstract: | This paper presents the influences of sulphonated naphthalene formaldehyde condensates(FDN)and sulphonated melamine formaldehyde condensates(SM)used spearately,and compounded sperplassticiser(FDN+SM)on the slump flow loss for cement paste or mortar.and slump loss for high fluidity concrete.Results show that,under the condition of same total dosage.the compounded superplasticiser(FDN+SM)can improve the adaptability of superplasticiser with cement,and obviously minimise the slump flow loss for cement paste or mortar,and the slump loss for high fluidity concrete. |
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| Keywords: | high fluidity concrete compounded superplasticiser slump loss |
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