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首页> 外文会议>Annual International Workshop on Materials Science and Engineering >Research on Performance and Microstructure of Sewage Pipe Mortar Strengthened with Different Anti-Corrosion Technologies NSong MuDJiangsu SOBUTE New Materials Co, Ltd., Nanjing 211103;Mmusong@cnjsjk.cn NHuaxin ZhouDJiangsu SOBUTE New Materials Co, Ltd., Nanjing 211103; NLiang ShiDJiangsu SOBUTE New Materials Co, Ltd., Nanjing 211103;
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Research on Performance and Microstructure of Sewage Pipe Mortar Strengthened with Different Anti-Corrosion Technologies NSong MuDJiangsu SOBUTE New Materials Co, Ltd., Nanjing 211103;Mmusong@cnjsjk.cn NHuaxin ZhouDJiangsu SOBUTE New Materials Co, Ltd., Nanjing 211103; NLiang ShiDJiangsu SOBUTE New Materials Co, Ltd., Nanjing 211103;

机译：不同防腐技术污水管砂浆的性能和微观结构研究N 宋泥江苏Sobutue新材料有限公司，Ltd。，南京211103; M MUSONG@cnjsjk.cn n huaxin zhoud 江苏Sobute新材料有限公司 ，有限公司，南京211103; n 梁淑萍江苏Sobute新材料有限公司，南京211103;

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摘要

Mostly urban underground sewage is the acidic corrosion environment with a high concentration of aggressive ions and microbe, which resulted in performance deterioration and service-life decrease of sewage concrete pipe. In order to effectively protect durability of the concrete pipe, the present paper briefly analysed the main degradation mechanism of concrete pipe attacked by urban underground sewage, and proposed that using penetrating and strengthening surface sealer based on inorganic chemistry. In addition, using index of compressive strength, weight loss and appearance level to investigate the influence of the sealer on corrosion resistance of mortar samples after different dry-wet cycles. Besides, comparative research on effect of the sealer, aluminate cement and admixture of corrosion resistance was also addressed. At last, the SEM technology was used to reveal the improvement mechanism of different technologies of corrosion resistance. The results indicated that the sealer and aluminate cement can significantly improve corrosion resistance of mortar. Besides, the improvement effect can be described as the descending order: the penetrating and strengthening surface sealer > aluminate cement > admixture of corrosion resistance. The mortar sample treated with the sealer displayed the condensed and sound microstructure which proved that the sealer can improve the corrosion resistance to urban underground sewage.
机译：大多数都市地下污水是具有高浓度侵蚀性离子和微生物的酸性腐蚀环境，导致污水混凝土管的性能恶化和使用寿命减少。为了有效保护混凝土管的耐久性，本文简要介绍了城市地下污水攻击的混凝土管道的主要退化机制，并提出了基于无机化学的渗透和强化表面密封剂。此外，使用抗压强度的指数，减肥和外观水平来研究密封剂在不同干湿循环后砂浆样品的耐腐蚀性的影响。此外，还解决了对封口剂，铝酸盐水泥和耐腐蚀性混合物的对比研究。最后，SEM技术用于揭示耐腐蚀性不同技术的改进机制。结果表明，密封剂和铝酸盐水泥可以显着提高砂浆的耐腐蚀性。此外，改善效果可以描述为降序：穿透和强化表面密封剂>铝酸盐水泥>耐腐蚀的混合物。用密封件处理的砂浆样品展示了冷凝和声音微观结构，证明了密封剂可以提高对城市地下污水的耐腐蚀性。

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