| 减水剂对铝酸盐水泥施工性能的影响 |
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| 引用本文： | 曹怡,薛群虎,南峰,杨保军,唐荣明.减水剂对铝酸盐水泥施工性能的影响[J].耐火材料,2005,39(2):110-111. |
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| 作者姓名： | 曹怡 薛群虎 南峰 杨保军 唐荣明 |
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| 作者单位： | 西安建筑科技大学材料科学与工程学院,西安,710055;西安建筑科技大学材料科学与工程学院,西安,710055;西安建筑科技大学材料科学与工程学院,西安,710055;西安建筑科技大学材料科学与工程学院,西安,710055;西安建筑科技大学材料科学与工程学院,西安,710055 |
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| 摘 要： | 研究了木质磺酸盐、磺化三聚氰胺甲醛和萘磺酸盐甲醛缩合物3种(类)减水剂对铝酸盐水泥(CA50)胶砂的减水率、初凝时间、终凝时间、耐压强度和抗折强度的影响。结果表明:上述减水剂对同一牌号的铝酸盐水泥的减水作用无差异;木质磺酸盐类减水剂对铝酸盐水泥的缓凝作用较强,磺化三聚氰胺甲醛的减水率最高,有促凝作用;3种(类)减水剂均使铝酸盐水泥胶砂的早期强度有所下降,其中萘磺酸盐甲醛缩合物的下降幅度最大。
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| 关 键 词： | 减水剂 铝酸盐水泥 浇注料 施工性能 |
| 修稿时间： | 2004年9月2日 |
Effects of water-reducing agents on constructive property of aluminate cements |
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| Abstract: | The effects of three water-reducing agents including lignosulphonate,sulfonated melamine-formaldehyde and naphthalenesulfonic acid-formaldehyde on water-reducing ratio,initial setting time,final setting time, compressive strength and modulus of rupture of aluminate cements were studied.The study results showed that the water-reducing effects of water-reducing agent on the same brand aluminate cements had no obvious differences;lignosulphonate could lengthen the setting time of the cement,and the cement with sulfonated melamine-formaldehyde had the highest water-reducing ratio and short setting time.All of the three water-reducing agents decreased the initial strength of the cements,of which,naphthalenesulfonic acid-formaldehyde decreased the strength most. |
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| Keywords: | Water-reducing agent Aluminate cements Castable Constructive property |
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