High-Temperature Effect on Mechanical Properties of GGBS-Based Geopolymer Composites Having Bauxite Residue
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DOI:
https://doi.org/10.5281/zenodo.14181625Keywords:
Geopolymer, calcined bauxite residue, mechanical properties, tensile strength, flexural strength, elevated temperaturesAbstract
This study investigated the influence of partially replacing calcined bauxite residue (BR) with
ground granulated blast furnace slag (GGBS) and calcium sulfate dihydrate (CSD) in geopolymer concrete
(GC). The test program included tests on the mechanical properties of these blends, including flexural
strength and split tensile strength at ambient and elevated temperatures. All GC blends showed increased
flexural and split tensile strengths over time due to ongoing geopolymerization, with mix R40-G45-C15
achieving the highest gains—53.66% and 112.42% higher than mix R70-G15-C15 at 28 days. At elevated
temperatures (250C, 500C, 750C), the compressive strength of R40-G45-C15 decreased from 45.27
MPa to 11.41 MPa, while flexural and tensile strengths declined from 6.21 MPa to 2.34 MPa and from 4.57
MPa to 1.99 MPa, respectively.
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References
Adnan, A., et al., Structural Efficiency of Fiber-Reinforced Geopolymer Concrete Confined with CFRP Sheets. Technical Journal, 2024. 3(ICACEE): p. 158-165.
Raza, A., et al., Rapid repair of geopolymer concrete members reinforced with polymer composites: Parametric study and analytical modeling. Engineering Structures, 2024. 299: p. 117143.
Raza, A., et al., Microstructural and Thermal Characterization of Polyethylene Fiber-Reinforced Geopolymer Composites. Journal of Building Engineering, 2024: p. 109904.
Raza, A., et al., Mechanical, durability and microstructural characterization of cost-effective polyethylene fiber-reinforced geopolymer concrete. Construction and Building Materials, 2024. 432: p. 136661.
Raza, A., et al., A Comprehensive Review on Material Characterization and Thermal Properties of Geopolymers: Potential of Various Fibers. Case Studies in Construction Materials, 2024: p. e03519.
Yang, Z., et al., Preparation of a geopolymer from red mud slurry and class F fly ash and its behavior at elevated temperatures. Construction and Building Materials, 2019. 221: p. 308-317.
Xue, C., et al., Comparisons of alkali-activated binder concrete (ABC) with OPC concrete-A review. Cement and Concrete Composites, 2023. 135: p. 104851.
Fawer, M., M. Concannon, and W. Rieber, Life cycle inventories for the production of sodium silicates. The International Journal of Life Cycle Assessment, 1999. 4: p. 207-212.
Fernando, S., et al., Life cycle assessment and cost analysis of fly ash–rice husk ash blended alkali-activated concrete. Journal of environmental management, 2021. 295: p. 113140.
Ye, N., et al., Transformations of Na, Al, Si and Fe species in red mud during synthesis of one-part geopolymers. Cement and concrete research, 2017. 101: p. 123-130.
Hu, Y., et al., Role of Fe species in geopolymer synthesized from alkali-thermal pretreated Fe-rich Bayer red mud. Construction and Building Materials, 2019. 200: p. 398-407.
ASTM/C143, Standard Test Method for Slump of Hydraulic Cement Concrete, ASTM International, West Conshohocken, PA, 2005.
ASTM C39 / C39M-18. Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, ASTM International, West Conshohocken, PA 2018.
C78M-21, A.C., Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading), ASTM International, West Conshohocken, PA. 2021.
Badkul, A., et al., A comprehensive study on the performance of alkali activated fly ash/GGBFS geopolymer concrete pavement. Road Materials and Pavement Design, 2022. 23(8): p. 1815-1835.
Verma, M. and N. Dev, Sodium hydroxide effect on the mechanical properties of flyash‐slag based geopolymer concrete. Structural Concrete, 2021. 22: p. E368-E379.
Hertel, T. and Y. Pontikes, Geopolymers, inorganic polymers, alkali-activated materials and hybrid binders from bauxite residue (red mud)–Putting things in perspective. Journal of Cleaner Production, 2020. 258: p. 120610.
Topark-Ngarm, P., P. Chindaprasirt, and V. Sata, Setting time, strength, and bond of high-calcium fly ash geopolymer concrete. Journal of materials in civil engineering, 2015. 27(7): p. 04014198.
Hua, S., K. Wang, and X. Yao, Developing high performance phosphogypsum-based cementitious materials for oil-well cementing through a step-by-step optimization method. Cement and Concrete Composites, 2016. 72: p. 299-308.
Phoo-ngernkham, T., et al., The effect of adding nano-SiO2 and nano-Al2O3 on properties of high calcium fly ash geopolymer cured at ambient temperature. Materials & Design, 2014. 55: p. 58-65.
Zhang, H.Y., et al., Thermal behavior and mechanical properties of geopolymer mortar after exposure to elevated temperatures. Construction and Building Materials, 2016. 109: p. 17-24.
Kantarci, F., İ. Türkmen, and E. Ekinci, Improving elevated temperature performance of geopolymer concrete utilizing nano-silica, micro-silica and styrene-butadiene latex. Construction and Building Materials, 2021. 286: p. 122980.
Poon, C.-S., et al., Performance of metakaolin concrete at elevated temperatures. Cement and concrete composites, 2003. 25(1): p. 83-89
