磷酸盐快补材料的耐腐蚀试验

发布时间：2018-06-24 01:12

本文选题：磷酸镁水泥基复合材料 + 力学性能　；参考：《沈阳建筑大学学报(自然科学版)》2017年05期

【摘要】：目的研究不同腐蚀介质对磷酸盐快补材料的影响,为防腐蚀设计提供理论基础.方法根据现有磷酸盐快补材料耐腐蚀的定义和评价指标,研究5种腐蚀介质对磷酸盐快补材料力学性能、体积稳定性和强度保留率的影响,进而得出其耐腐蚀能力的强弱.结果磷酸盐快补材料的抗压和抗折强度随龄期的增长其变化趋势大致相同.各种溶液中的磷酸盐快补材料的干缩率随龄期的增加而增加,28d龄期以前的增长幅度较大,后期增长幅度明显降低.磷酸盐快补材料在5种腐蚀介质中的强度保留率最高为53.91%,最低22.43%.结论磷酸盐快补材料在盐腐蚀介质中,耐腐蚀较强;在酸碱腐蚀介质中,耐腐蚀较差.
[Abstract]:Aim to study the effect of different corrosion media on phosphate fast compensation materials and to provide a theoretical basis for anticorrosion design. Methods according to the definition and evaluation index of corrosion resistance of phosphate fast compensation materials, the effects of five kinds of corrosion media on mechanical properties, volume stability and strength retention rate of phosphate fast compensation materials were studied, and the strength of corrosion resistance of phosphate fast compensation materials was obtained. Results the compressive strength and flexural strength of phosphate fast compensation materials were similar with the increase of age. The dry shrinkage rate of phosphate fast supplement materials in various solutions increased with the increase of age, and the increase range before 28d age was larger, and the increase range in later period was obviously decreased. The strength retention rate of phosphate fast compensation material in five kinds of corrosive media was 53.91 and 22.43 respectively. Conclusion Phosphate fast toning material has strong corrosion resistance in salt corrosion medium and poor corrosion resistance in acid base corrosion medium.
【作者单位】：沈阳建筑大学土木工程学院;沈阳建筑大学交通工程学院;沈阳建筑大学理学院;
【基金】：国家自然科学基金项目(51478276)
【分类号】：TU528

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