Effect of ettringite crystallization inhibitors on performance of sulpho-aluminate cement

被引：0

作者：

Ma Z.-C. ^{[1
]}

Wang L. ^{[1
]}

Ji G.-J. ^{[2
]}

机构：

[1] State Key Laboratory of Green Building Materials, China Building Materials Academy

[2] Department of Structures and Materials, China Institute of Water Resources and Hydropower Research

来源：

Jianzhu Cailiao Xuebao/Journal of Building Materials | 2010年 / 13卷 / 03期

关键词：

Crystallization inhibitor; Ettringite; Expansion rate; Mortar strength; Setting time;

D O I：

10.3969/j.issn.1007-9629.2010.03.025

中图分类号：

学科分类号：

摘要：

The length test of mortar rod was conducted to determine the effect of ettringite crystallization inhibitors on expansion. The results show that it's effective to lower expansion with 0.1% (by mass) inhibitors incorporated in sulpho-aluminate cement, the degree of inhibition is up to 30%; and it has the effect of retarding but almost has no impact on cement mortar strength. The organic acid ions in crystallization inhibitors replace SO42- and combine with the polarity cations of ettringite to form stable complexes, hence inhibit the nucleation and growth of ettringite gels.

引用

页码：395 / 397

页数：2

共 13 条

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[12] Davey R.J., Black S.N., Bromley L.A., Et al., Molecular design based on recognition at inorganic surfaces, Nature, 353, 10, pp. 549-550, (1991)
[13] Cody R.D., Organo-crystalline interactions in evaporite systems: The effects of crystallization inhibition, Journal of Sedimentary Petrology, 61, 5, pp. 704-718, (1991)

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