| 聚羧酸系与萘系高效减水剂对水泥石孔结构的影响 |
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| 引用本文： | 吴芳,李乐民,杨长辉.聚羧酸系与萘系高效减水剂对水泥石孔结构的影响[J].化学建材,2007,23(1):43-45. |
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| 作者姓名： | 吴芳 李乐民 杨长辉 |
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| 作者单位： | 重庆大学材料科学与工程学院，重庆大学材料科学与工程学院，重庆大学材料科学与工程学院 重庆 400045，重庆 400045，重庆 400045 |
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| 摘 要： | 利用氮吸附法测定了掺聚羧酸系减水剂、萘系减水剂的水泥石的孔结构,分析了减水剂对水泥石孔结构的影响;利用扫描电镜分析了聚羧酸系减水剂与萘系减水剂对硬化3天及28天水泥石微观形貌的影响.试验结果表明:聚羧酸减水剂能大幅度减小水泥石大孔的孔径,使孔更加细化和均匀化,从而增加了水泥石的致密性.
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| 关 键 词： | 聚羧酸系 萘系 高效减水剂 孔结构 聚羧酸系减水剂 萘系高效减水剂 水泥石 孔结构 影响 Cement Paste Pore Structure 致密性 均匀化 孔径 大孔 聚羧酸减水剂 结果 试验 微观形貌 硬化 扫描电镜分析 萘系减水剂 测定 氮吸附法 |
Influence of Polycarboxylate-Based and Naphthalene-Based Superplasticizers on Pore Structure of Cement Paste |
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| Wu Fang Chongqing University.Influence of Polycarboxylate-Based and Naphthalene-Based Superplasticizers on Pore Structure of Cement Paste[J].Chemical Materials for Construction,2007,23(1):43-45. |
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| Authors: | Wu Fang Chongqing University |
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| Affiliation: | Wu Fang Chongqing University |
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| Abstract: | Pore structure of cement paste containing polycarboxylate-based superplasticizer(PC)and naphthalene formalde- hyde sulfonate-based superplasticizer(NF)was determined by means of ASAP2010 analyzer,effects of superplasticizer on pore structure of cement paste were analysed and effects of polycarboxylate-based and naphthalene-based superplasticizers on microstructure of hardened cement paste at age of 3d and 28d were analysed by way of SEM.Testing results showed that incorporation of PC could greatly reduce pore size of big pores of cement paste making pores finer and uniformer,thus improving compactness of cement paste. |
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| Keywords: | polycarboxylate-based naphthalene-based superplasticizer pore structure |
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