新型水泥基水性环氧砂浆的制备与性能研究

Research on Preparation and Properties of New Type of Cement-based Waterborne Epoxy Mortar

浏览量:

关键词:

水性环氧树脂;砂浆;力学性能;弹性模量

Key words:

Waterborne epoxy; Mortar; Mechanical properties; Elastic modulus

刊期:

2017年第4期

DOI:

文章编号:

1000-4637(2017)04-22-05

基金项目:

陕西省交通科技项目(项目编号:10-44K)资助

作者:

毕伟涛1,张 伟1,李春轩1,张嘉晨1,耿刚强2

单位:

1.陕西通宇公路研究所有限公司,西安 710077;2.长安大学材料科学与工程学院,西安 710064

摘要

摘   要:采用不同水性环氧树脂制备了三种水泥基环氧砂浆材料,借助试件制备手段,分析测试了水性环氧树脂砂浆体系的力学性能、收缩性能和抗冻性能,探讨了水性环氧树脂含量对复配体系力学性能的影响,当湛新和亨斯迈水性环氧树脂含量达到2%时,砂浆体系力学性能最优,其中亨斯迈水性环氧树脂体系的抗压强度可达到75MPa以上。

Abstract: Three cement-based waterborne epoxy mortar materials were prepared by different waterborne epoxy. The mechanical properties, self-shrinkage properties and frost resistance of mortar system were studied through test piece manufacture. And the influence of epoxy content on mechanical properties of compound system was discussed. The mechanical properties of compound system were better when using Allnex and Huntsman waterborne epoxy. Especially, compound system from Huntsman has the highest compressive strength, up to 75MPa.

结论

通过不同类型水性环氧树脂制备了水泥基砂浆体系,研究了环氧类型对砂浆体系力学性能、收缩性能和冻融性的影响。通过比较发现,湛新和亨斯迈水性环氧砂浆体系力学性能和收缩性能表现较好,而陶氏水性环氧砂浆体系的抗冻性最好。其中亨斯迈砂浆体系的抗压强度、抗折强度和拉拔强度在同等固含量和养护时间下表现最优。另外,由于水性环氧水泥基砂浆材料不仅具有较好的力学性能,结合其较好的耐腐蚀性能,使得这类材料在混凝土结构加固修补及抗水抗渗等潮湿环境中表现出良好的发展前景。

参考文献

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引用本文

毕伟涛,张伟,李春轩,等.新型水泥基水性环氧砂浆的制备与性能研究[J].混凝土与水泥制品,2017(4):22-26.

BI W T, ZHANG W, LI C X,et al.Research on Preparation and Properties of New Type of Cement-based Waterborne Epoxy Mortar[J].China Concrete and Cement Products,2017(4):22-26.


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