Mechanism of Interface Bonding Between Alkali-Slag-Metakaolin Based Geopolymer and Aggregates
CUI Chao1, LI Yuan1, DANG Yingze1, WANG Lan1,*, PENG Hui2
1 Key Laboratory of Civil Engineering Structure and Mechanics, Inner Mongolia University of Technology, Hohhot 010051, China 2 National-local Joint Engineering Laboratory for Southern Regional Bridge Long-term Performance Improvement Technology, Changsha University of Science & Technology, Changsha 410114, China
Abstract: Geopolymer concrete, formed through alkaline activation, has an internal alkaline concentration of dozens times higher than that of cement. Therefore, the reaction properties between geopolymers and aggregates need to be explored further. This work discussed in detail the influence of different mix ratios and aggregate types on the interface bonding strength of the alkali-slag-metakaolin based geopolymer and aggregate . Microscopic analysis methods were used to elucidate the interface bonding mechanism. The experimental results showed that under the conditions of an alkali module of 1.2, and a liquid-to-solid ratio of 0.4, the samples with granite, basalt, and limestone respectively got the highest bonding strength. As the modulus of the alkaline activator and the liquid-to-solid ratio increased, the bonding strength of the interface decreased gradually;however, the bond strength between the geopolymer and granite was not significantly affected by the alkalinity of the activator. Under the action of the alkaline activator, three kinds of aggregates underwent dissolution reactions, and the dissolved active Si, Al, and Ca elements should react with the geopolymer further at the interface, which should improve the compactness of the ITZ.
崔潮, 李渊, 党颖泽, 王岚, 彭晖. 碱-矿渣-偏高岭土基地聚物与骨料的界面粘结机理[J]. 材料导报, 2025, 39(1): 23110101-8.
CUI Chao, LI Yuan, DANG Yingze, WANG Lan, PENG Hui. Mechanism of Interface Bonding Between Alkali-Slag-Metakaolin Based Geopolymer and Aggregates. Materials Reports, 2025, 39(1): 23110101-8.
1 Huang D, Chen P, Peng H, et al. Construction and Building Materials, 2021, 305, 124760. 2 Cai, B, Wang, J, et al. Applied Energy, 2016, 166, 191. 3 Chen P, Shi Z, Cao S, et al. Journal of Cleaner Production, 2022, 359, 132136. 4 Ayaz Ahmad, Waqas Ahmad, Fahid Aslam, et al. Case Studies in Construction Materials, 2022, 16, e00840. 5 Turner L K, Collins F G. Construction and Building Materials, 2013, 43, 125. 6 Joseph Davidovits. Journal of Thermal Analysis and Calorimetry, 1991, 37(8), 1633. 7 Kong Y K, Kurumisawa K. Journal of Building Engineering, 2023, 75, 106830. 8 Tian Z, Zhang Z, Tang X, et al. Construction and Building Materials, 2023, 385, 131404. 9 San N R, Provis J L. Frontiers in Materials, 2015, 2, 70. 10 Peng H, Cui C, Cai C S, et al. Construction and Building Materials, 2019, 221(10), 263. 11 Kasım Mermerdaş, Soran Manguri, et al. Engineering Science and Technology, 2017, 20(6), 1642. 12 Li W, Luo Z, Gan Y, et al. Composites Science and Technology, 2021, 214(29), 109001. 13 Wang Qing, Zhou Baoyu, Ding Zhaoyang, et al. Concrete, 2009(12), 48(in Chinese). 王晴, 周宝玉, 丁兆洋, 等. 混凝土, 2009(12), 48. 14 Pacheco-Torgal F, Castro-Gomes J, Jalali S. Cement and Concrete Research, 2007, 37(6), 933. 15 Lee W K W, Deventer J. Cement and Concrete Research, 2004, 34(2), 195. 16 Lee W K W, Deventer J. Cement and Concrete Research, 2007, 37(6), 844. 17 Qiu Zhiming, Bao Shenxu. Journal of Building Engineering, 2023, 76, 107363. 18 Fatheali A S, Sharanabasava V. Materials Letters, 2022, 309, 131302. 19 Manjusha Muraleedharan, Yashida Nadir. Ceramics International, 2021, 47(10), 13257. 20 Zhou Chenlin, Zhong Zhengqiang, Peng Hui, et al. Journal of Transportation Science and Engineering, 2022, 38(2), 82(in Chinese). 周晨林, 钟正强, 彭晖, 等. 交通科学与工程, 2022, 38(2), 82. 21 Durak U, Karahan O, Uzal B, et al. Structural Concrete, 2021, 22, E352. 22 Yuan B, Yu Q L, Brouwers H J H. Materials and Structures, 2017, 50, 136. 23 Assaedi H. Composite Interfaces, 2021, 28(5), 527. 24 Liu X Y, Sriramya D. Journal of Petroleum Science and Engineering, 2020, 195, 107555. 25 Bayiha B N, Billong N, Yamb E, et al. Construction and Building Materials. 2019, 217, 28. 26 Escalante-Garcia J I, Perez-Cortes P. Cement and Concrete Research, 2020, 137, 106211. 27 Zhao X, Liu C, Zuo L, et al. Cement and Concrete Composites, 2019, 103, 279. 28 Walkley B, Provis J L, San Nicolas R, et al. Advances in Applied Ceramics, 2015, 114(7), 372. 29 Criado M, Palomo A, Fernández-Jiménez A. Fuel, 2005, 84(16), 2048. 30 Bernal S A, Provis J L, Walkley B, et al. Cement and Concrete Research, 2013, 53, 127. 31 Susan A B, Rackel S N, Rupert J M, et al. Cement and Concrete Research, 2014, 57, 33. 32 El Didamony H, Assal H H, El Sokkary T M, et al. HBRC Journal, 2012, 8(3), 170. 33 Valérie Daux, Christophe Guy, et al. Chemical Geology, 1997, 142(1-2), 109. 34 Deng Yifan. Study on water in fly ash geopolymers and the interfacial transition zone of their concrete. Master's Thesis, Changsha University of Science & Technology, China, 2017(in Chinese). 邓怡帆. 粉煤灰地聚合物中的水及其混凝土界面过渡区研究. 硕士学位论文, 长沙理工大学, 2017.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2025, Vol. 39 
