Experimental Evaluation of Geopolymer Concrete Strength Using Sea Sand and Sea Water in Mixture

Tung Pham Thanh, Tu T. Nguyen, Trung Tuan Nguyen


This paper presents the experimental strength evaluation of geopolymer concrete and ordinary concrete using sea sand and seawater in the mixture. A series of 30 cubic samples with a 150 mm side length and 12 rectangular specimens with a dimension of 100 × 100 × 400 mm (width × thickness × length) were cast and tested in this study. Specimens were divided equally into two groups. The first group of specimens was cast using geopolymer as the main binder (GPC), while the second group of samples was made using ordinary Portland Cement (OPC). While the compression tests were performed for specimens in two groups at the ages of 3, 7, 28, 60, and 120 days, the tensile tests were only performed for specimens at 7 and 28 days. The testing results revealed that the compression strength of GPC specimens using sea sand and seawater was significantly higher than that of OPC samples using the same type of salted sand and water. Besides, the use of sea sand and seawater for replacing river sand and fresh water in the production of GPC is feasible in terms of compressive strength since GPC produces a higher compressive strength than that of conventional concrete.


Doi: 10.28991/CEJ-2022-08-08-03

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Geopolymer Concrete; Portland Cement; Compression Strength; Tensile Strength; Seawater; Sea Sand.


Hackney, C. R., Darby, S. E., Parsons, D. R., Leyland, J., Best, J. L., Aalto, R., ... & Houseago, R. C. (2020). River bank instability from unsustainable sand mining in the lower Mekong River. Nature Sustainability, 3(3), 217-225. doi:10.1038/s41893-019-0455-3.

Priyadharshini, P., Ramamurthy, K., & Robinson, R. G. (2018). Sustainable reuse of excavation soil in cementitious composites. Journal of Cleaner Production, 176, 999–1011. doi:10.1016/j.jclepro.2017.11.256.

Agrawal, U. S., Wanjari, S. P., & Naresh, D. N. (2019). Impact of replacement of natural river sand with geopolymer fly ash sand on hardened properties of concrete. Construction and Building Materials, 209, 499–507. doi:10.1016/j.conbuildmat.2019.03.134.

Nishida, T., Otsuki, N., Ohara, H., Garba-Say, Z. M., & Nagata, T. (2015). Some Considerations for Applicability of Seawater as Mixing Water in Concrete. Journal of Materials in Civil Engineering, 27(7). doi:10.1061/(asce)mt.1943-5533.0001006.

Mohammed, T. U., Hamada, H., & Yamaji, T. (2004). Performance of seawater-mixed concrete in the tidal environment. Cement and Concrete Research, 34(4), 593–601. doi:10.1016/j.cemconres.2003.09.020.

Wegian, F. M. (2010). Effect of seawater for mixing and curing on structural concrete. IES Journal Part A: Civil & Structural Engineering, 3(4), 235–243. doi:10.1080/19373260.2010.521048.

Wang, A., Zheng, Y., Zhang, Z., Liu, K., Li, Y., Shi, L., & Sun, D. (2020). The Durability of Alkali-Activated Materials in Comparison with Ordinary Portland Cements and Concretes: A Review. Engineering, 6(6), 695–706. doi:10.1016/j.eng.2019.08.019.

Mehta, A., & Siddique, R. (2017). Sulfuric acid resistance of fly ash based geopolymer concrete. Construction and Building Materials, 146, 136–143. doi:10.1016/j.conbuildmat.2017.04.077.

Kong, D. L., & Sanjayan, J. G. (2008). Damage behavior of geopolymer composites exposed to elevated temperatures. Cement and Concrete Composites, 30(10), 986-991. doi:10.1016/j.cemconcomp.2008.08.001.

Davidovits, J. (1984). Synthetic mineral polymer compound of the Silicoaluminates family and preparation process. United States Patent, Patent number: 4,472,199, 1-12, United States.

Palomo, A., Grutzeck, M. W., & Blanco, M. T. (1999). Alkali-activated fly ashes: A cement for the future. Cement and Concrete Research, 29(8), 1323–1329. doi:10.1016/S0008-8846(98)00243-9.

Gourley, J. T. (2003). Geopolymers; opportunities for environmentally friendly construction materials. International Conference and Exhibition on Adaptive Materials for a Modern Society, Institute of Materials Engineering Australia, 1-3 October, 2003, Sydney, Australia.

Xu, H., & Van Deventer, J. S. J. (2000). The geopolymerisation of alumino-silicate minerals. International Journal of Mineral Processing, 59(3), 247–266. doi:10.1016/S0301-7516(99)00074-5.

Saranya, T., Ambily, P.S., Raj, B. (2020). Studies on the Utilization of Alternative Fine Aggregate in Geopolymer Concrete. Proceedings of SECON. Lecture Notes in Civil Engineering, Springer, Cham, Switzerland. doi:10.1007/978-3-030-26365-2_78.

Etxeberria, M., Fernandez, J. M., & Limeira, J. (2016). Secondary aggregates and seawater employment for sustainable concrete dyke blocks production: Case study. Construction and Building Materials, 113, 586–595. doi:10.1016/j.conbuildmat.2016.03.097.

Yang, S., Xu, J., Zang, C., Li, R., Yang, Q., & Sun, S. (2019). Mechanical properties of alkali-activated slag concrete mixed by seawater and sea sand. Construction and Building Materials, 196, 395–410. doi:10.1016/j.conbuildmat.2018.11.113.

Li, Y. L., Zhao, X. L., Singh Raman, R. K., & Al-Saadi, S. (2018). Thermal and mechanical properties of alkali-activated slag paste, mortar and concrete utilising seawater and sea sand. Construction and Building Materials, 159, 704–724. doi:10.1016/j.conbuildmat.2017.10.104.

Shinde, B. H., & Kadam, K. N. (2016). Strength properties of fly ash based geopolymer concrete with sea sand. American Journal of Engineering Research, 5(7), 129-132.

Cui, Y., Gao, K., & Zhang, P. (2020). Experimental and statistical study on mechanical characteristics of geopolymer concrete. Materials, 13(7). doi:10.3390/ma13071651.

Anbarasan, I., & Soundarapandian, N. (2020). Investigation of mechanical and micro structural properties of geopolymer concrete blended by dredged marine sand and manufactured sand under ambient curing conditions. Structural Concrete, 21(3), 992-1003. doi:10.1002/suco.201900343.

Pham, T. T., Nguyen, T. T., Nguyen, L. N., & Nguyen, P. V. (2020). A neural network approach for predicting hardened property of geopolymer concrete. International Journal of GEOMATE, 19(74), 176–184. doi:10.21660/2020.74.72565.

Charkhtab Moghaddam, S., Madandoust, R., Jamshidi, M., & Nikbin, I. M. (2021). Mechanical properties of fly ash-based geopolymer concrete with crumb rubber and steel fiber under ambient and sulfuric acid conditions. Construction and Building Materials, 281, 122571. doi:10.1016/j.conbuildmat.2021.122571.

Nguyen, T. T., Tung, P. T., & Hossain, K. (2021). Evaluation of modulus of elasticity for eco-friendly concrete made with seawater and marine sand. Journal of Science and Technology in Civil Engineering (STCE) - HUCE, 15(4), 148–156. doi:10.31814/stce.huce(nuce)2021-15(4)-13.

Staley, Z. R., Tuan, C. Y., Eskridge, K. M., & Li, X. (2021). Using the heat generated from electrically conductive concrete slabs to reduce antibiotic resistance in beef cattle manure. Science of the Total Environment, 768, 144220. doi:10.1016/j.scitotenv.2020.144220.

TCVN 7572-2. (2006). Aggregates for Concrete and Mortar–Test Methods-Part 2: Determination of Particle Size Distribution. Ministry of Science and Technology, Hanoi, Vietnam. (In Vietnamese).

TCVN 3105. (1993). Heavyweight concrete compound and heavyweight concrete - Sampling, making and curing of test specimens. Ministry of Science and Technology, Hanoi, Vietnam. (In Vietnamese).

TCVN 3118. (1993). Heavyweight concrete - Method for determination of compressive strength. Ministry of Science and Technology, Hanoi, Vietnam. (In Vietnamese).

TCVN 8218 (2009), Hydraulic concrete – Technical requirements. Ministry of Science and Technology, Hanoi, Vietnam. (In Vietnamese).

Hassan, A., Arif, M., & Shariq, M. (2020). A review of properties and behaviour of reinforced geopolymer concrete structural elements- A clean technology option for sustainable development. Journal of Cleaner Production, 245, 118762. doi:10.1016/j.jclepro.2019.118762.

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DOI: 10.28991/CEJ-2022-08-08-03


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