LOW CARBON GREEN CONCRETE MADE WITH RECYCLABLE LOCALLY SOURCED MATERIALS

Unumoste Ferdinand Akhademe, Akaolisa Celestine Ezeagu

Abstract


Concrete production has a significant environmental impact due to its heavy reliance on natural resources. To address this, incorporating recycled aggregates provides a sustainable solution by reducing the need for virgin materials and diverting construction waste from landfills. This research aims to investigate the effects of recycled aggregates on concrete properties like workability, strength, and durability. Through comprehensive laboratory studies, concrete mixes with varying proportions of recycled aggregates were examined using standardized testing procedures. The results showed that higher levels of recycled aggregates led to decreased workability and compressive strength. For instance, a mix without recycled aggregates and a water-to-cement ratio of 0.43 exhibited a slump measurement of 89 mm and a 28-day compressive strength of 52.0 MPa, while a mix with 100% recycled aggregates and the same water-to-cement ratio showed a slump value of 78 mm and a compressive strength of 41.1 MPa. Overall, this study offers valuable insights into the use of recycled aggregates in concrete production, benefiting stakeholders interested in promoting sustainability in the construction industry, such as engineers, designers, and policymakers.

Keywords – Green Concrete, recycled aggregates, construction, slump measurement, compressive strength


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References


Achini, I., Koteng, D., & Mwero, J. (2021). Effect of Mixing Method on the Rheology and Hardened Properties of Concrete with Low Water/Binder Ratio. International Journal of Civil Engineering. https://doi.org/10.14445/23488352/ijce- v8i10p101.

Amulu, C. P., & Ezeagu, C. A. (2017). Experimental and analytical comparison of torsion, bending moment, and shear forces in reinforced concrete beams using BS 8110, Euro Code 2 and ACI 318 provisions. Nigerian Journal of Technology (NIJOTECH), 36(3), 705– 711.

Aslani, F., & Asif, Z. (2019). Properties of Ambient-Cured Normal and Heavyweight Geopolymer Concrete Exposed to High Temperatures. Materials, 12, 740. https://doi.org/10.3390/ma12050740.

Bairagi, N., Vidyadhara, H., & Ravande, K. (1990). Mix Design Procedure for Recycled Aggregate Concrete. Construction and Building Materials, 4, 188-193. https://doi.org/10.1016/0950- 0618(90)90039-4.

Dey, S., Kumar, V., & Manoj, A. (2022). An experimental study on strength and durability characteristics of selfâ€curing selfâ€compacting concrete. Structural Concrete, 23, 3169- 3198. https://doi.org/10.1002/suco.202100446.

Egbe, K. J. I. (2019). Experimental Study of the Impact of Particle Packing Density Optimization on Strength and Water Absorption Properties of Concrete. International Journal of Engineering and Advanced Technology, 05(02), 67-79. DOI: 10.31695/IJERAT.2019.3387.

Ezeagu, A. C., & Agbo-Anike, O. J. (2020). Experimental investigation using Design Expert software for lightweight concrete production with sawdust as partial replacement for fine aggregate. Nigerian Journal of Engineering, 27(2). Retrieved from www.njeabu.com.ng

Hashmi, D., Khan, M., Bilal, M., Shariq, M., & Baqi, A. (2022). Green Concrete: An Eco- Friendly Alternative to the OPC Concrete. CONSTRUCTION. https://doi.org/10.15282/construction.v2i2.8 710.

Jörgens, M., Königer, J., Kanz, K., Birkholz, T., Hübner, H., Prückner, S., Zwissler, B., & Trentzsch, H. (2021). Testing mechanical chest compression devices of different design for their suitability for prehospital patient transport - a simulator- based study. BMC Emergency Medicine, 21. https://doi.org/10.1186/s12873-021- 00409-3.

Kang, S., Kim, G., Wi, J., Ahn, T., Lee, D., & Choi, H. (2015). Effect of Particle Breakage on Compaction and Thermal Resistivity of Concrete-based Recycled Aggregates. Journal of the Korean Geotechnical Society, 31, 17-28. https://doi.org/10.7843/KGS.2015.31.10.17.

Lavado, J., Bogas, J., Brito, J., & Hawreen, A. (2020). Fresh properties of recycled aggregate concrete. Construction and Building Materials, 233, 117322. https://doi.org/10.1016/j.conbuildmat.2019.1 17322.

Okah, J., & Amos, N. (2021). Investigation of the Effect of Aggregate/Cement and Water/Cement Ratios on Concrete Workability. New Visions in Science and Technology Vol. 6. https://doi.org/10.9734/bpi/nvst/v6/4697f.

Ortega-López, V., García-Llona, A., Revilla-Cuesta, V., Santamaría, A., & San-José, J. (2021). Fiber-reinforcement and its effects on the mechanical properties of high-workability concretes manufactured with slag as aggregate and binder. Journal of building engineering, 43, 102548. https://doi.org/10.1016/J.JOBE.2021.102548.

Padmini, A. K., Ramamurthy, K., & Mathews, S. M. (2002). Relative moisture movement through recycled aggregate concrete. Magazine of Concrete Research, 54(5), 377-384. DOI: 10.1680/macr.54.5.377.38815.

Pasupathy, K., Ramakrishnan, S., & Sanjayan, J. (2021). Influence of recycled concrete aggregate on the foam stability of aerated geopolymer concrete. Construction and Building Materials. https://doi.org/10.1016/j.conbuildmat.2020.1 21850.

Piccinali, A., Diotti, A., Plizzari, G., & Sorlini, S. (2022). Impact of Recycled Aggregate on the Mechanical and Environmental Properties of Concrete: A Review. Materials, 15. https://doi.org/10.3390/ma15051818.

Sankeerth, S., Reddy, V., Shrihari, S., & Rajashekar, C. (2021). Effect of packing factor and fine aggregate/total aggregate ratio on the development of self-compacting concrete. E3S Web of Conferences. https://doi.org/10.1051/e3sconf/202130901056.

Somarathna, H., Raman, S., Mohotti, D., Mutalib, A., & Badri, K. (2021). Behaviour of concrete specimens retrofitted with bio- based polyurethane coatings under dynamic loads. Construction and Building Materials, 270, 121860. https://doi.org/10.1016/j.conbuildmat.20 20.121860.

Ugboaja, C. E., Ezeagu, C. A., Okonkwo, V. O., & Agbo-Anike, O. J. (2022). Experimental study on the properties of sawdust concrete with partial replacement of cement with sawdust ash. Journal of Inventive Engineering and Technology (JIET), Volume- 2(Issue-2), pp-1-11. Retrieved from www.jiengtech.com.

Yurdakul, E., Taylor, P., Ceylan, H., & BektaÅŸ, F. (2014). Effect of Water-to-Binder Ratio, Air Content, and Type of Cementitious Materials on Fresh and Hardened Properties of Binary and Ternary Blended Concrete. Journal of Materials in Civil Engineering, 26, 04014002. https://doi.org/10.1061/(ASCE)MT.1943- 5533.0000900.


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