| 缓凝剂对水泥与减水剂相容性的影响及其作为助磨剂组分的试验研究 |
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| 引用本文： | 赵计辉,王栋民,王学光.缓凝剂对水泥与减水剂相容性的影响及其作为助磨剂组分的试验研究[J].水泥,2012(4):6-9. |
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| 作者姓名： | 赵计辉 王栋民 王学光 |
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| 作者单位： | 中国矿业大学,北京,100083 |
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| 摘 要： | 以水泥净浆流动度为评价指标,试验研究了多种常用缓凝剂对水泥与减水剂相容性的影响,结果表明,多数缓凝剂都能不同程度改善水泥与减水剂的相容性,其中白糖和＂六偏磷酸钠＋葡萄糖酸钠（1∶1）＂的效果最好。选取几种相容性效果较好的缓凝剂作为助磨剂组分之一配制的复合助磨剂,试验表明,3种复合助磨剂均能改善水泥与减水剂的相容性且助磨效果优异,其中0.05%型复合助磨剂还显著提高水泥各龄期抗压强度。
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| 关 键 词： | 缓凝剂 减水剂 相容性 净浆流动度 助磨剂 |
Effect of retarders on compatibility of cement and water reducer and study of retarders used as grinding aids |
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| ZHAO Ji-hui,WANG Dong-min,WANG Xue-guang.Effect of retarders on compatibility of cement and water reducer and study of retarders used as grinding aids[J].Cement,2012(4):6-9. |
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| Authors: | ZHAO Ji-hui WANG Dong-min WANG Xue-guang |
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| Affiliation: | University of Mining & Technology,Beijing 100083,China |
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| Abstract: | The effect of multiple frequently used retarders on compatibility of cement and water reducer was evaluated by cement paste fluidity.The results showed that most of retarders could improve the compatibility of cement and water reducer in varying degree,sugar and "sodium hexametaphosphate + sodium gluconate(1∶1)" has the best effect.Several retarders with better effect were selected as a component of composite grinding aids,and the performance of composite grinding aids was researched.The results indicated that three kinds of composite cement grinding aids could improve the compatibility,and have excellent grinding effect.0.05% composite grinding aids could also increase the compressive strength of each age significantly. |
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| Keywords: | retarders water reducer compatibility cement paste fluidity grinding aids |
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