考虑道路层间脱空病害的地聚合物注浆材料性能研究

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (12): 4559-4571.

考虑道路层间脱空病害的地聚合物注浆材料性能研究

赵宏昊¹, 刘宪明², 李鹏¹, 张文亮³, 王凯⁴, 董坤¹, 王俊杰¹, 徐翼¹

1.中国海洋大学工程学院,青岛 266100;
2.山东高速工程检测有限公司,济南 250002;
3.山东高速集团有限公司创新研究院,济南 250098;
4.山东百廿慧通工程科技有限公司,济南 250000

收稿日期:2023-07-10 修订日期:2023-09-15 出版日期:2023-12-15 发布日期:2023-12-12
通信作者: 李鹏,博士,副教授。E-mail:lp@ouc.edu.cn
作者简介:赵宏昊(1999—),男,硕士研究生。主要从事道路注浆材料方面的研究。E-mail:zhh0621@stu.ouc.edu.cn
基金资助:
国家自然科学基金面上项目(52279115);山东高速集团创新研究院委托科研项目(SDGS-2022-0455-09)

Properties of Geopolymer Grouting Material Considering Road Interlayer Hollowing Diseases

ZHAO Honghao¹, LIU Xianming², LI Peng¹, ZHANG Wenliang³, WANG Kai⁴, DONG Kun¹, WANG Junjie¹, XU Yi¹

1. College of Engineering, Ocean University of China, Qingdao 266100, China;
2. Shandong High-Speed Engineering Testing Co., Ltd., Jinan 250002, China;
3. Innovation Research Institute of Shandong High-Speed Group Co., Ltd., Jinan 250098, China;
4. Shandong Hundred Twenty Huitong Engineering Technology Co., Ltd., Jinan 250000, China

Received:2023-07-10 Revised:2023-09-15 Online:2023-12-15 Published:2023-12-12

摘要/Abstract

摘要： 道路层间脱空病害形态相对扁平,注浆修复后的固结体容易受折,因此需着重改善注浆材料的韧性和抗折性能,但目前缺乏一种针对病害特征的注浆修复材料。本文以矿渣、粉煤灰为主要原料,通过加入醋酸乙烯-乙烯共聚物可再分散性乳胶粉(简称VAE胶粉)改善地聚合物注浆材料脆性弱点,提高材料抗折强度,在使用NaOH调节模数后的水玻璃激发下进行地聚合反应,研发了地聚合物注浆材料,探究了VAE胶粉掺量等因素对注浆材料性能的影响。试验结果表明,地聚合物注浆材料综合性能最佳的配合比为矿渣粉掺量40%、粉煤灰掺量60%、VAE胶粉外掺2%、引气剂外掺0.1%、UEA膨胀剂外掺2%、水玻璃掺量25%、水玻璃模数1.6、水胶比0.35。研发的地聚合物注浆材料抗折强度提高了10.8%,脆性降低了17.4%,适用于道路层间脱空病害的修复。该研究对于推动道路隐蔽病害修复技术的发展、保障道路长期运营安全稳定具有一定的促进作用。

关键词: 注浆材料, 地聚合物, 道路修复, 层间脱空病害, VAE胶粉, 抗折强度

Abstract: The shape of road interlayer hollowing diseases is relatively flat, and the consolidated body after grouting repair is prone to bending. Therefore, it is necessary to focus on improving the toughness and bending resistance of the grouting material. Currently, there is a lack of grouting repair material which target its disease characteristics. Therefore, slag and fly ash were used as the main raw materials, vinyl acetate-ethylene copolymer redispersible powder (VAE glue powder) was added to improve the brittleness and flexural strength of geopolymer grouting material, and conduct geopolymerization reaction under the excitation of water glass which modulus adjusted by NaOH. A new type of geopolymer grouting material was developed, and the influences of factors such as VAE glue powder content on the performance of geopolymer grouting material was explored. The experimental results show that the optimal mix ratio for the comprehensive performance of the new geopolymer grouting material is 40% slag powder, 60% fly ash, 2% VAE glue powder, 0.1% air entraining agent, 2% UEA expansive agent, 25% water glass, 1.6 water glass modulus and 0.35 water-cement ratio. The newly developed geopolymer grouting material increases to 10.8% in flexural strength and decreases to 17.4% in brittleness, making it suitable forroad interlayer hollowing diseases. The research conclusion has a certain promoting effect on promoting the development of road hidden disease repair technology and ensuring the long-term safety and stability of road operation.

Key words: grouting material, geopolymer, road rehabilitation, interlayer hollowing disease, VAE glue powder, flexural strength

中图分类号:

U414

赵宏昊, 刘宪明, 李鹏, 张文亮, 王凯, 董坤, 王俊杰, 徐翼. 考虑道路层间脱空病害的地聚合物注浆材料性能研究[J]. 硅酸盐通报, 2023, 42(12): 4559-4571.

ZHAO Honghao, LIU Xianming, LI Peng, ZHANG Wenliang, WANG Kai, DONG Kun, WANG Junjie, XU Yi. Properties of Geopolymer Grouting Material Considering Road Interlayer Hollowing Diseases[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(12): 4559-4571.

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