Flexural Properties of Slag-based Geopolymer Concrete Beams Under Coupled Effect of Loading and Chloride Attack
REN Kai1, ZHANG Zuhua1,*, DENG Yulin1, HU Jie2, SHI Caijun1,*
1 Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082, China 2 School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
Abstract: Geopolymer concrete has received widespread attention due to its low-carbon and high corrosion resistant characteristics. In this work, geopolymer concrete beams were prepared using slag as a main precursor, mixed with fly ash and ceramic powder, and their flexural performance under load and chloride attack was analyzed. The changes in deflection, cracks, strains, and chloride ion penetration were investigated by varying the load holding and attack days. The results show that the mechanical property change curves under coupling have high similarity with the pattern of ordinary portland cement concrete and the flexural and erosion resistance is higher than that of ordinary portland cement concrete of the same strength. The test results provide data support for the application of geopolymers in structural engineering.
1 Gao Y, Xu J Y, Zhang G X, et al. Journal of Building Materials, 2016, 19(2), 209 (in Chinese). 高原, 许金余, 张国喜, 等. 建筑材料学报, 2016, 19(2), 209. 2 Cai Y X, Liu Q F. Journal of Building Materials, 2023, 26(6), 596 (in Chinese). 蔡渝新, 刘清风. 建筑材料学报, 2023, 26(6), 596. 3 Chen R Q, Zhang Z H, Shi C J. Materials Herald, 2023, 37(17), 174 (in Chinese). 陈汝琪, 张祖华, 史才军. 材料导报, 2023, 37(17), 174. 4 Lopes A V, Lopes S M R, Pinto L. Applied Sciences, 2020, 10(12), 4379. 5 Wang J. Study on flexural performance of alkali-excited slag-fly ash concrete beams. Master's Thesis, Hunan University, China, 2020(in Chinese). 王佳. 碱激发矿渣-粉煤灰混凝土梁抗弯性能研究. 硕士学位论文, 湖南大学, 2020. 6 Lee W H, Wang J H, Ding Y C, et al. Construction and Building Materials, 2019, 211, 807. 7 El-Didamony H, Amer A A, Ela-ziz H A. Ceramics International, 2012, 38(5), 3773. 8 Du Y G, Cullen M, Li C K. Construction and Building Materials, 2013, 38, 472. 9 Djerbi A, Bonnet S, Khelidj A, et al. Cement and Concrete Research, 2007, 38(6), 877. 10 Bernal S A, Rodriguez E D, Gutierrez R M D, et al. Journal of Sustai-nable Cement-Based Materials, 2012, 1(3), 138. 11 Ge W J, Zhang S K, Zhang Z W, et al. Journal of Building Structures, 2023, 44(8), 170 (in Chinese). 葛文杰, 张素康, 张志文, 等. 建筑结构学报, 2023, 44(8), 170. 12 Chen F, Gao J M, Qi B, et al. Construction and Building Materials, 2017, 151, 164. 13 Zhang Y G, Han Y, Zhang J J. IOP Conference Series:Earth and Environmental Science, 2019, 371(2), 032034. 14 Zhao S C, Gong J X, Shui J F. China Highway Journal, 2007, 20(4), 76 (in Chinese). 赵尚传, 贡金鑫, 水金锋. 中国公路学报, 2007, 20(4), 76. 15 Toumi A, Ismail M, Francois R, et al. Cement and Concrete Research, 2008, 38(8-9), 1106. 16 Wang Y Z, Zhou H F. Journal of Materials Science and Engineering, 2013, 31(5), 645 (in Chinese). 王元战, 周海锋. 材料科学与工程学报, 2013, 31(5), 645. 17 Al-Otaibi S. Construction and Building Materials, 2008, 22(10), 2059. 18 Kumar P J, Bulu P. Construction and Building Materials, 2023, 401, 132925. 19 Fu C Q, Zhou K W, Ling Y F, et al. Construction and Building Materials, 2020, 257, 119533. 20 Zhang J H, Liu Y H, Shi Z M. Journal of Building Materials, 2018, 21(2), 299 (in Chinese). 张菊辉, 刘颖慧, 时哲敏. 建筑材料学报, 2018, 21(2), 299. 21 Yin S P, Na M W, Yu Y L, et al. Construction and Building Materials, 2017, 132, 251. 22 He S Q, Gong J X. Journal of Building Materials, 2005, 8(2), 134 (in Chinese). 何世钦, 贡金鑫. 建筑材料学报, 2005, 8(2), 134.
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2025, Vol. 39 
