Exploring the Potential of Nigerian Clay-Based Pozzolans for Enhancing Concrete Performance and Sustainability: A Study on Strength, Hydration, and Durability
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Abstract
This study investigated the potential of calcined clays from Nigerian deposits in the production of ternary blends of cement. Clay samples were obtained from three different locations namely: Ikpeshi, Okpilla and Uzebba. The raw clay samples were then calcined at 700°C and 800°C. Chemical and mineralogical compositions were determined for the raw and calcined clay samples using XRF and XRD respectively. The chemical composition confirmed these clays as potential pozzolans with SiO2, Al2O3, and Fe2O3 collectively exceeding 70%. XRD analysis identified kaolinite and quartz as major mineral phases in the raw clays, which transformed into metakaolin upon calcination. Compressive strength tests on mortar samples prepared with 50% substitution of Portland cement with the calcined clay and limestone, showed that Ikpeshi clay at 800°C had the best strength performance, with a strength activity index of 0.92 at 28 days, demonstrating superior pozzolanic potential. Strength development was more significant between 7 and 28 days, indicating the pozzolanic reaction's contribution to long-term strength. However, the initial strength at 3 days was lower than the reference cement due to a delayed pozzolanic reaction. XRD analysis of blended pastes revealed typical hydration phases like portlandite, C-S-H, Strätlingite, and ettringite, with the ternary blends showing reduced portlandite content, indicating absorption by the pozzolan's alumina phase. Durability assessments revealed that the ternary blends exhibited improved resistance to water and chloride ion ingress. These findings highlight the effectiveness of Nigerian calcined clays in producing durable and sustainable concrete, supporting their use as supplementary cementitious materials to reduce the environmental impact of concrete production.
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References
ACI 232.1R., 2012. Report on the Use of Raw or Processed Natural Pozzolans in Concrete.
Ademila, O., Okpoli, C., and Ehinmitan, D., 2019. Geological and lithological mapping of part of igarra schist belt using integrated geophysical methods. Earth Sciences Pakistan, 3, pp. 1–9. https://doi.org/10.26480/esp.01.2019.01.09
Adewumi, A. J., Omoge, O. M., and Apeabu, N., 2016. Hydrochemical assessment of groundwater for domestic and irrigation usage in Uzebba Area. Edo State, Southwestern Nigeria, 1(2), pp. 23–36.
Alujas, A., Fernández, R., Quintana, R., Scrivener, K. L., and Martirena, F., 2015. Pozzolanic reactivity of low grade kaolinitic clays: Influence of calcination temperature and impact of calcination products on OPC hydration. Applied Clay Science, 108, pp. 94–101. https://doi.org/10.1016/j.clay.2015.01.028
Arya, C., Buenfeld, N. R., and Newman, J. B., 1990. Factors influencing chloride-binding in concrete. Cement and Concrete Research, 20(2), pp. 291–300. https://doi.org/10.1016/0008-8846(90)90083-A
Arya, C., and Xu, Y., 1995. Effect of cement type on chloride binding and corrosion of steel in concrete. Cement and Concrete Research, 25(4), pp. 893–902. https://doi.org/10.1016/0008-8846(95)00080-V
ASTM-C109/109M., 2008. Standard test method for compressive strength of hydraulic cement mortars (Using 2-in. or cube specimens). In Annual Book of ASTM Standards.
ASTM-C-618., 2005. Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use. ASTM International.
ASTM C1585., 2009. Standard Test Method for Measurement of Rate of Absorption of Water by Hydraulic- Cement Concretes. ASTM International. 1–6.
ASTM-C1602/C1602M., 2012. Standard Specification for Mixing Water Used in the Production of Hydraulic Cement Concrete. ASTM Lnternational.
ASTM C 778., 2002. Standard Specification for Standard Sand (Vol. 14). https://doi.org/10.1520/C0778-21
Avet, F., Snellings, R., Alujas, D. A., Ben, H. M., and Scrivener, K., 2016. Development of a new rapid, relevant and reliable (R3) test method to evaluate the pozzolanic reactivity of calcined kaolinitic clays. Cement and Concrete Research, 85, pp. 1–11. https://doi.org/10.1016/J.CEMCONRES.2016.02.015
Bai, J., Wild, S., and Sabir, B. B., 2002. Sorptivity and strength of air-cured and water-cured PC–PFA–MK concrete and the influence of binder composition on carbonation depth. Cement and Concrete Research, 32(11), pp. 1813–1821. https://doi.org/10.1016/S0008-8846(02)00872-4
Balakrishna, M., Mohamad, F., Evans, R., and Rahman, M., 2018. Assessment of sorptivity coefficient in concrete cubes. Discovery, 54(274), pp. 377–386.
Boakye, K., Khorami, M., Saidani, M., Ganjian, E., Tyrer, M., and Dunster, A., 2024. Performance of a single source of low-grade clay in a limestone calcined clay cement mortar. Buildings, 14(1). https://doi.org/10.3390/buildings14010093
Bright Singh, S., and Murugan, M., 2022. Effect of metakaolin on the properties of pervious concrete. Construction and Building Materials, 346(128476). https://doi.org/10.1016/j.conbuildmat.2022.128476
BS EN 196-1., 1995. Methods of testing cement — Part 1: Determination of strength.
Cuesta, A., De la Torre, A., Santacruz, I., Cabeza, A., Alvarez-Pinazo, G., Aranda, M., and Sanz, J., 2015. Structure of stratlingite and effect of hydration methodology on microstructure. Advances in Cement Research, 28, pp. 1–10. https://doi.org/10.1680/adcr.14.00104
Díaz, Y. C., Berriel, S. S., Heierli, U., Favier, A. R., Machado, I. R. S., Scrivener, K. L., and Habert, G., 2017. Limestone calcined clay cement as a low-carbon solution to meet expanding cement demand in emerging economies. Development Engineering, 2(June), pp. 82–91. https://doi.org/10.1016/j.deveng.2017.06.001
Ding, J.T., and Li, Z. J., 2002. Effects of metakaolin and silica fume on properties of concrete. ACI Materials Journal, 99, pp. 393–398.
Güneyisi, E., and Gesoğlu, M., 2008. A study on durability properties of high-performance concretes incorporating high replacement levels of slag. Materials and Structures, 41(3), 479–493. https://doi.org/10.1617/s11527-007-9260-y
Güneyisi, E., and Mermerdaş, K., 2007. Comparative study on strength, sorptivity, and chloride ingress characteristics of air-cured and water-cured concretes modified with metakaolin. Materials and Structures/Materiaux et Constructions, 40(10), pp. 1161–1171. https://doi.org/10.1617/s11527-007-9258-5
Güneyisi, E., Ozturan, T., and Gesogˇlu, M., 2007. Effect of initial curing on chloride ingress and corrosion resistance characteristics of concretes made with plain and blended cements. Building and Environment, 42. https://doi.org/10.1016/j.buildenv.2006.07.008
Hedayat, A. A., and Baniasadizade, M., 2015. Evaluation of the different test methods of the concrete durability for the Persian Gulf Environment. Advances in Structural Engineering, 18(10), pp. 1575–1586. https://doi.org/10.1260/1369-4332.18.10.1575
Juenger, M. C. G., Snellings, R., and Bernal, S. A., 2019. Supplementary cementitious materials: New sources, characterization, and performance insights. Cement and Concrete Research, 122, pp. 257–273. https://doi.org/10.1016/j.cemconres.2019.05.008
Kim, M., Yang, E., and Yi, S., 2007. Evaluation of chloride penetration characteristics using a colorimetric method in concrete structures, Engineering, Materials Science, pp. 1–6.
Lavagna, L., and Nisticò, R., 2023. An Insight into the Chemistry of Cement—A Review. Applied Sciences, 13(1). https://doi.org/10.3390/app13010203
Loser, R., Lothenbach, B., Leemann, A., and Tuchschmid, M., 2010. Chloride resistance of concrete and its binding capacity – Comparison between experimental results and thermodynamic modeling. Cement and Concrete Composites, 32(1), pp. 34–42. https://doi.org/10.1016/J.CEMCONCOMP.2009.08.001
Luping, T., and Nilsson, L.-O., 1993. Chloride binding capacity and binding isotherms of OPC pastes and mortars. Cement and Concrete Research, 23. https://doi.org/10.1016/0008-8846(93)90089-R
Möschner, G., Lothenbach, B., Winnefeld, F., Ulrich, A., Figi, R., and Kretzschmar, R., 2009. Solid solution between Al-ettringite and Fe-ettringite (Ca6[Al1−xFex(OH)6]2(SO4)3·26H2O). Cement and Concrete Research, 39(6), pp. 482–489. https://doi.org/10.1016/J.CEMCONRES.2009.03.001
NF P18-513., 2012. Métakaolin, addition pouzzolanique pour bétons: définitions, spécification, citères de conformité.
Odriozola, B.M.Á., and Gutiérrez, A.P., 2008. Comparative study of different test methods for reinforced concrete durability assessment in marine environment. Materials and Structures, 41(3), pp. 527–541. https://doi.org/10.1617/s11527-007-9263-8
Ogirigbo, O. R., and Black, L., 2017. Chloride binding and diffusion in slag blends: Influence of slag composition and temperature. Construction and Building Materials, 149(3), pp. 816–825. https://doi.org/10.1016/j.conbuildmat.2017.05.184
Ogirigbo, O.R., 2016. Influence of slag composition and temperature on the hydration and performance of slag blends in chloride environments (Doctoral dissertation, University of Leeds).
Rautureau, M., Gomes, C. de S.F., Liewig, N., and Katouzian-Safadi, M., 2017. Clays and health: Properties and therapeutic uses. Clays and Health: Properties and Therapeutic Uses, pp. 1–217. https://doi.org/10.1007/978-3-319-42884-0
Richardson, I. G., 2008. The calcium silicate hydrates. Cement and Concrete Research, 38(2), pp. 137–158. https://doi.org/10.1016/J.CEMCONRES.2007.11.005
Sabir, B., Wild, S., and Bai, J., 2001. Metakaolin and calcined clays as pozzolans for concrete: A review. Cement and Concrete Composites, 23(6), pp. 441–454. https://doi.org/10.1016/S0958-9465(00)00092-5
Scrivener, K. L., 2014. Options for the future of cement. The Indian Concrete Journal, 88(7), 11–21.
Shah, V., Parashar, A., Mishra, G., Medepalli, S., Krishnan, S., and Bishnoi, S., 2018. Influence of cement replacement by limestone calcined clay pozzolan on the engineering properties of mortar and concrete. Advances in Cement Research, pp. 1–11. https://doi.org/10.1680/jadcr.18.00073
Singh, V. K., 2023. Classification of pozzolana and production of pozzolanic cements. The Science and Technology of Cement and Other Hydraulic Binders, pp. 653–694. https://doi.org/10.1016/B978-0-323-95080-0.00018-2
Stark, J., and Wicht, B., 2000. Einführung. In Zement und Kalk. Basel: Birkhäuser Basel. https://doi.org/10.1007/978-3-0348-8382-5_1
Tasdemir, C., 2003. Combined effects of mineral admixtures and curing conditions on the sorptivity coefficient of concrete. Cement and Concrete Research, 33(10), pp. 1637–1642. https://doi.org/10.1016/S0008-8846(03)00112-1
Taylor, H. F., 1997. Cement chemistry (2nd ed.). Thomas Telford Publishing.
Xu, X., Zhao, Y., Gu, X., Zhu, Z., Wang, F., and Zhang, Z., 2023. Effect of particle size and morphology of siliceous supplementary cementitious material on the hydration and autogenous shrinkage of blended cement. Materials, 16(4). https://doi.org/10.3390/ma16041638
Zhang, R., Gong, E., Wang, G., and Yang, Z., 2018. An analytical shortcut to estimate alumina content by LOI in Lateritic Gibbsite Bauxite Prospecting. In 11th Alumina Quality Workshop International Conference (pp. 1–5). Gladstone, Queensland, Australia.