摘要: |
利用油脂在碱性条件下发生皂化反应的原理,考察了溶剂用量、碱用量及油脂种类对水泥浆体触变性的影响,并且开发了适用于水泥浆体系的新型脂肪酸盐类触变剂,同时测试了触变水泥浆体的流变特性及不同时间段的扭矩.结果表明:掺入新型触变剂的水泥浆体具有良好的触变性,当浆体静置时,状态稳定;当以特殊剪切力搅拌浆体时,状态为流体状,流动度十分稳定. |
关键词: 水泥浆体 脂肪酸盐 新型触变剂 触变性 |
DOI:103969/j.issn1007 9629201702013 |
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Preparation and Property of Fatty Acid Salt Thixotropic Agent for Cement Paste |
GAO Nanxiao, RAN Qianping, QIAO Min
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State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co., Ltd., Nanjing 211103, China
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Abstract: |
Using the principle of saponification reaction, a new fatty acid salt thixotropic agent was developed by investigating the effects of solvent content, alkali content and kinds of oils and fats on the thixotropic of cement paste.The rheological properties and constant torque in different periods were tested.The result shows that, the cement paste has outstanding thixotropy when incorporating new thixotropic agent. The cement paste is in relatively steady state when it is allowed to stand, but when a special shear stirs the cement paste, it is in a fluid like state. The fluidity of cement paste is very stable. |
Key words: cement paste fatty acid salt new thixotropic agent thixotropy property |