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消泡剂对掺萘系减水剂砂浆性能的影响研究
作者：曾文波1，孙振平1，郭二飞1，水亮亮1，徐亚玲2，徐月梅2，李曦3，李党强3
（1.同济大学 先进土木工程材料教育部重点实验室，上海 201804；2.上海城建物资有限公司，上海 200063；3.湖南中建五局混凝土有限公司，湖南 长沙 410004）
摘要：通过消泡剂在不同掺量下对掺萘系减水剂（NSF）砂浆的含气量、扩展度、强度及压折比的影响试验，考察了4种消泡剂与NSF的相容性。结果表明：消泡剂在掺NSF砂浆中的作用效果与其种类和掺量有关；一般而言，消泡剂会降低掺NSF砂浆的含气量，改善其流动性，提高强度并降低压折比；消泡效果较好的消泡剂对掺NSF砂浆的流动性和强度的改善效果也相应较好。
关键词：消泡剂；萘系减水剂；砂浆；性能；影响
中图分类号：TU528.042；ＴＵ57+8.1 文献标识码：A 文章编号：1001-702X（2017）04-0044-04
Study on effect of defoamer on the properties of mortar mixed with naphthalene superplasticizer
ZENG Wenbo1，SUN Zhenping1，GUO Erfei1，SHUI Liangliang1，XU Yaling2，XU Yuemei2，LI Xi3，LI Dangqiang3
（1.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education of Tongji University，Shanghai，201804，China；2.Shanghai Urban Construction Materials Co. Ltd.，Shanghai 200063，China；3.China Construction Fifth Engineering Division Concrete Co. Ltd.，Changsha 410004，China）
ZENG Wenbo1，SUN Zhenping1，GUO Erfei1，SHUI Liangliang1，XU Yaling2，XU Yuemei2，LI Xi3，LI Dangqiang3
（1.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education of Tongji University，Shanghai，201804，China；2.Shanghai Urban Construction Materials Co. Ltd.，Shanghai 200063，China；3.China Construction Fifth Engineering Division Concrete Co. Ltd.，Changsha 410004，China）
Abstract：Through the test of effect of defoamer in different dosage on air content，slump flow，strength and the ratio of compressive strength to flexural strength of mortar mixed with naphthalene superplasticizer（NSF），studied the compatibility of four kinds of defoamer and NSF. Results show that，the effects of defoamer in mortar mixed with NSF is related to the kinds and amounts of defoamer. Generally，defoamer can reduce the air content of mortar mixed with NSF，improve the fluidity，increase the strength and reduce the ratio of compressive strength to flexural strength，and the defoamer with a good defoaming effect usually has a better improvement on mortar flow and strength of mortar mixed with NSF.
Key words：defoamer，naphthalene superplasticizer（NSF），mortar，property，effect
Key words：defoamer，naphthalene superplasticizer（NSF），mortar，property，effect