Application of Rice Husk Ash-Derived Nano-Silica as a Partial Replacement of Portland Limestone Cement: Effects on Workability, Compressive Strength, and Mass Gain of Concrete
DOI:
https://doi.org/10.54536/ajcec.v2i2.8444Keywords:
Cement Replacement, Compressive Strength, Nano-Silica, Portland Limestone Cement, Rice Husk AshAbstract
Rice husk ash (RHA) is a widely available agricultural waste with potential as a precursor for nano-silica, offering a supplementary cementitious material for concrete production. This study investigated the effect of nano-silica synthesised from RHA, calcined at 600 °C, as a partial replacement for Portland Limestone Cement (PLC) on the workability, compressive strength, and mass gain of concrete at 0%, 4%, and 8% replacement levels. The constituent fine and coarse aggregates were characterised for moisture content, specific gravity, and particle-size distribution before concrete production, and confirmed suitable for normal-weight concrete. Workability decreased progressively with increasing nano-silica content, with slump values dropping from 60 mm for the control mix to 45 mm and 35 mm at 4% and 8% replacement, respectively, although values remained within a workable range. The curing-period mass increase - measured here as the percentage increase in specimen mass between demoulding and the end of curing, and reported as a study-specific indicator distinct from standardised water absorption - was lowest at 4% replacement (0.66%), against 0.92% for the control and 0.71% at 8% replacement. The 8% replacement achieved the highest 28-day compressive strength, at 21.34 MPa, compared with 18.99 MPa at 4% replacement and 15.55 MPa for the control, associated with the combined filler, nucleation, and pozzolanic effects of nano-silica. Within the replacement levels investigated, 4% replacement provided the best overall balance of workability, compressive strength, and mass gain, while 8% replacement is better suited to applications where maximum 28-day compressive strength is the governing requirement. The findings demonstrate the potential of RHA-derived nano-silica as a supplementary cementitious material for PLC concrete, while providing a route for agricultural-waste valorization.
References
Aanu, A., Imran, M. A., & Lateef, J. (2025). Investigating the influence of banana leaf ash on the compressive strength and chloride resistance of concrete. American Journal of Civil Engineering and Constructions, 1(2), 1–12. https://doi.org/10.54536/ajcec.v1i1.5010
Akolade, A. S., Alabi, O. O., Olaomotito, P. A., Adebiyi, A. Y., Abolarin, O. P., & Waheed, J. A. (2026). Sustainable detoxification of galvanizing wastewater using potassium permanganate and rice husk-derived activated carbon. Engineering Perspective, 6(2), 210–221. https://doi.org/10.64808/engineeringperspective.1776898
Akolade, A. S., Olaomotito, P. A., Adebiyi, A. Y., Abolarin, O. P., Adetunji, O. I., & Ogedengbe, K. (2025). Production and evaluation of cement-bonded composites board made from banana pseudo stem. FUDMA Journal of Engineering and Technology, 1(2), 664–677. https://doi.org/10.33003/5vv6ch89
Al-Saffar, F. Y., Wong, L. S., & Paul, S. C. (2023). An elucidative review of the nanomaterial effect on the durability and calcium-silicate-hydrate (C–S–H) gel development of concrete. Gels, 9(8), 613. https://doi.org/10.3390/gels9080613
Anto, G., Athira, K., Nair, N. A., Sai, T. Y., Yadav, A. L., & Sairam, V. (2022). Mechanical properties and durability of ternary blended cement paste containing rice husk ash and nano silica. Construction and Building Materials, 342, Article 127732. https://doi.org/10.1016/j.conbuildmat.2022.127732
Aprilia, S., Rosnelly, C. M., Zuhra, Fitriani, F., Haffiz Akbar, E., Raqib, M., Rahmah, K., Amin, A., & Baity, R. A. (2023). Synthesis of amorphous silica from rice husk ash using the sol-gel method: Effect of alkaline and alkaline concentration. Materials Today: Proceedings, 87, 225–229. https://doi.org/10.1016/j.matpr.2023.02.403
Arvizu-Montes, A., Guerrero-Bustamante, O., Polo-Mendoza, R., & Martinez-Echevarria, M. J. (2025). Integrating life-cycle assessment (LCA) and artificial neural networks (ANNs) for optimizing the inclusion of supplementary cementitious materials (SCMs) in eco-friendly cementitious composites: A literature review. Materials, 18(18), 4307. https://doi.org/10.3390/ma18184307
ASTM International. (2019a). ASTM C136/C136M-19: Standard test method for sieve analysis of fine and coarse aggregates.
ASTM International. (2019b). ASTM C566-19: Standard test method for total evaporable moisture content of aggregate by drying.
ASTM International. (2020). ASTM C143/C143M-20: Standard test method for slump of hydraulic-cement concrete.
ASTM International. (2021). ASTM C642-21: Standard test method for density, absorption, and voids in hardened concrete.
ASTM International. (2022). ASTM C128-22: Standard test method for relative density (specific gravity) and absorption of fine aggregate.
ASTM International. (2023). ASTM C595/C595M-23: Standard specification for blended hydraulic cements.
ASTM International. (2024). ASTM C127-24: Standard test method for relative density (specific gravity) and absorption of coarse aggregate.
Barbhuiya, S., Das, B. B., Adak, D., Rajput, A., & Katare, V. (2025). Rice husk ash in structural concrete: Influence on strength, durability and sustainability. Discover Concrete and Cement, 1, 14. https://doi.org/10.1007/s44416-025-00013-9
British Standards Institution. (2019). BS EN 12390-3:2019: Testing hardened concrete—Part 3: Compressive strength of test specimens.
British Standards Institution. (2020). BS 1881-122:2020: Testing concrete—Method for determination of water absorption.
Dhaneswara, D., Fatriansyah, J. F., Situmorang, F. W., & Haqoh, A. N. (2020). Synthesis of amorphous silica from rice husk ash: Comparing HCl and CH₃COOH acidification methods and various alkaline concentrations. International Journal of Technology, 11(1), 200–208. https://doi.org/10.14716/ijtech.v11i1.3335
Ebnalwaled, A. A., & Almalki, A. S. A. (2022). Behavior of silica nanoparticles synthesized from rice husk ash by the sol-gel method as a photocatalytic and antibacterial agent. Materials, 15(22), 8211. https://doi.org/10.3390/ma15228211
Endale, S. A., Taffese, W. Z., Vo, D.-H., & Yehualaw, M. D. (2023). Rice husk ash in concrete. Sustainability, 15(1), 137. https://doi.org/10.3390/su15010137
Farokhzad, R., & Divandari, H. (2021). The effect of nano-CaCO₃ and nano-SiO₂ on properties of self-compacting concrete. Journal of Structural and Construction Engineering, 7(4), 187–201. https://doi.org/10.22065/jsce.2018.143253.1624
Indumathi, M., Nakkeeran, G., Roy, D., Gupta, S. K., & Alaneme, G. U. (2024). Innovative approaches to sustainable construction: A detailed study of rice husk ash as an eco-friendly substitute in cement production. Discover Applied Sciences, 6(11), 1–22. https://doi.org/10.1007/s42452-024-06314-1
International Energy Agency. (2023). Cement—Tracking clean energy progress. https://www.iea.org/energy-system/industry/cement
Kuffner, B. H. B., Tambara Júnior, L. U. D., Marangon, E., & Lübeck, A. (2023). Development of self-compacting concretes using rice husk or fly ashes and different cement types. REM: International Engineering Journal, 76(1), 9–19. https://doi.org/10.1590/037044672021760007
Muhammad, A., & Thienel, K.-C. (2023). Properties of self-compacting concrete produced with optimized volumes of calcined clay and rice husk ash—Emphasis on rheology, flowability retention and durability. Materials, 16(16), 5513. https://doi.org/10.3390/ma16165513
Muhammad, A., Thienel, K.-C., & Sposito, R. (2021). Suitability of blending rice husk ash and calcined clay for the production of self-compacting concrete: A review. Materials, 14(21), 6252. https://doi.org/10.3390/ma14216252
Park, S., Wu, S., Liu, Z., & Pyo, S. (2021). The role of supplementary cementitious materials (SCMs) in ultra-high performance concrete (UHPC): A review. Materials, 14(6), 1472. https://doi.org/10.3390/ma14061472
Raji, M. A., Falola, B. M., Enikuomehin, J. T., Oyelade, A. O., Abiodun, Y. O., Olaniyi, Y. A., Olagunju, O. G., Anyaegbuna, K. L., Abdulkareem, M. O., & Fapohunda, C. A. (2024). Prediction of compressive strength of nano silica and micro silica from rice husk ash using multivariate regression models. AI in Civil Engineering, 3, 22. https://doi.org/10.1007/s43503-024-00043-5
Razzazan, S., Mashaan, N. S., & Paraskeva, T. (2025). Lithium slag as a supplementary cementitious material for sustainable concrete: A review. Materials, 18(15), 3641. https://doi.org/10.3390/ma18153641
Ridoy, A. S., Hassan, A. N., Jany, M. R., Saha, A. K., & Mahamud, F. (2026). Durability and strength evaluation of sustainable concrete structures. American Journal of Civil Engineering and Constructions, 2(1), 48–56. https://doi.org/10.54536/ajcec.v2i1.7141
Sawasdee, V., & Pisutpaisal, N. (2022). Rice husk ash characterization and utilization as a source of silica material. Chemical Engineering Transactions, 93, 79–84. https://doi.org/10.3303/CET2293014
Tran, H.-B., Le, V.-B., & Phan, V. T.-A. (2021). Mechanical properties of high strength concrete containing nano SiO₂ made from rice husk ash in Southern Vietnam. Crystals, 11(8), 932. https://doi.org/10.3390/cryst11080932
Ullah, M. F., Tang, H., Ullah, A., & Khan, K. (2025). Synergistic effects of rice husk ash and extracted microsilica on the performance of high-strength concrete. Scientific Reports, 15(1), 41274. https://doi.org/10.1038/s41598-025-25218-7
Wang, J., Jiang, F., Zhou, J., & Mao, Z. (2024). The synergistic effect of limestone powder and rice husk ash on the mechanical properties of cement-based materials. Materials, 17(20), 5058. https://doi.org/10.3390/ma17205058
Wu, S., Shao, Z., Andrew, R. M., Bing, L., Wang, J., Niu, L., Liu, Z., & Xi, F. (2024). Global CO₂ uptake by cement materials accounts 1930–2023. Scientific Data, 11, 1136. https://doi.org/10.1038/s41597-024-04234-8
Xi, B., Zhang, N., Duan, H., He, J., Song, G., Li, H., & Shi, X. (2023). Optimization of rice husk ash concrete design towards economic and environmental assessment. Environmental Impact Assessment Review, 103, 107229. https://doi.org/10.1016/j.eiar.2023.107229
Xu, Z., Bai, Z., Wu, J., Long, H., Deng, H., Chen, Z., Yuan, Y., & Fan, X. (2022). Microstructural characteristics and nano-modification of interfacial transition zone in concrete: A review. Nanotechnology Reviews, 11(1), 2078–2100. https://doi.org/10.1515/ntrev-2022-0125
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Copyright (c) 2026 Adebola Saheed Akolade, Oluwatobiloba Dave Akintayo, Oluwatunmise Peter Abolarin, John Kehinde Adebayo, Precious Adesope Olaomotito, Abdulmoruf Olasile Akinsanya
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