Advances in concrete construction

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Optimum LWA content in concrete based on k-value and physical-mechanical properties

  • Muda, Zakaria Che (Faculty of Engineering & Quantity Surveying, INTI-International University) ;
  • Shafigh, Payam (Center for Building, Construction & Tropical Architecture (BuCTA), Faculty of Built Environment, Universiti Malaya) ;
  • Yousuf, Sumra (Department of Building and Architectural Engineering, Faculty of Engineering & Technology, Bahauddin Zakariya University) ;
  • Mahyuddin, Norhayati Binti (Center for Building, Construction & Tropical Architecture (BuCTA), Faculty of Built Environment, Universiti Malaya) ;
  • Asadi, Iman (Center for Building, Construction & Tropical Architecture (BuCTA), Faculty of Built Environment, Universiti Malaya)
  • Received : 2020.02.22
  • Accepted : 2022.10.06
  • Published : 2022.09.25
⟨ Previous Next ⟩

Abstract

Thermal comfort and energy conservation are critical issues in the building sector. Energy consumption in the building sector should be reduced whilst enhancing the thermal comfort of occupants. Concrete is the most widely used construction material in buildings. Its thermal conductivity (k-value) has a direct effect on thermal comfort perception. This study aims to find the optimum value of replacing the normal aggregate with lightweight expanded clay aggregate (LECA) under high strengths and low thermal conductivity, density and water absorption. The k-value of the LECA concrete and its physical and mechanical properties have varying correlations. Results indicate that the oven-dry density, compressive strength, splitting tensile strength and k-value of concrete decrease when normal coarse aggregates are replaced with LECA. However, water absorption (initial and final) increases. Thermal conductivity and the physical and mechanical properties have a strong correlation. The statistical optimisation of the experimental data shows that the 39% replacement of normal coarse aggregate by LECA is the optimum value for maximising the compressive and splitting tensile strengths whilst maintaining the k-value, density and water absorption at a minimum.

Keywords

References

  1. Al-Homoud, M.S. (2005), "Performance characteristics and practical applications of common building thermal insulation materials", Build. Environ., 40(3), 353-366. https://doi.org/10.1016/j.buildenv.2004.05.013
  2. Alexander, M. (1999), Engineering and transport properties of the interfacial transition zone in cementitious composites, (Vol. 20), Rilem Publications.
  3. Asadi, I., Mahyuddin, N. and Shafigh, P. (2017), "A review on indoor environmental quality (IEQ) and energy consumption in building based on occupant behavior", Facilities, 35(11/12), 684-695. https://doi.org/10.1108/F-06-2016-0062
  4. Asadi, I., Shafigh, P., Hassan, Z.F.B.A. and Mahyuddin, N.B. (2018), "Thermal conductivity of concrete-A review", J. Build. Eng., 20, 81-93. https://doi.org/10.1016/j.jobe.2018.07.002
  5. Blazquez, C.S., Martin, A.F., Nieto, I.M., Garcia, P.C., Perez, L. S.S. and Gonzalez-Aguilera, D. (2017), "Analysis and study of different grouting materials in vertical geothermal closed-loop systems", Renew. Energy, 114, 1189-1200. https://doi.org/10.1016/j.renene.2017.08.011
  6. Budaiwi, I., Abdou, A. and Al-Homoud, M. (2002), "Variations of thermal conductivity of insulation materials under different operating temperatures: Impact on envelope-induced cooling load", J. Architect. Eng., 8(4), 125-132. https://doi.org/10.1061/(ASCE)1076-0431(2002)8:4(125)
  7. Chan, J. (2014), Thermal properties of concrete with different Swedish aggregate materials, Rapport TVBM (5000-serie).
  8. Holm, T.A. and Bremner, T.W. (2000), State-of-the-art report on high-strength, high-durability structural low-density concrete for applications in severe marine environments: US Army Corps of Engineers, Engineer Research and Development Center.
  9. Iranmanesh, S., Mehrali, M., Sadeghinezhad, E., Ang, B.C., Ong, H.C. and Esmaeilzadeh, A. (2016), "Evaluation of viscosity and thermal conductivity of graphene nanoplatelets nanofluids through a combined experimental-statistical approach using respond surface methodology method", Int. Commun. Heat Mass Transfer, 79, 74-80. https://doi.org/10.1016/j.icheatmasstransfer.2016.10.004
  10. Kareem, M.A., Raheem, A.A., Oriola, K.O. and Abdulwahab, R. (2022), "A review on application of oil palm shell as aggregate in concrete - Towards realising a pollution-free environment and sustainable concrete", Environ. Challenges, 8, 100531. https://doi.org/10.1016/j.envc.2022.100531
  11. Kim, K.-H., Jeon, S.-E., Kim, J.-K. and Yang, S. (2003), "An experimental study on thermal conductivity of concrete", Cement Concrete Res., 33(3), 363-371. https://doi.org/10.1016/S0008-8846(02)00965-1
  12. Meyer, C. (2009), "The greening of the concrete industry", Cement Concrete Compos., 31(8), 601-605. https://doi.org/10.1016/j.cemconcomp.2008.12.010
  13. Monteiro, P. (2006), Concrete: Microstructure, Properties, and Materials, McGraw-Hill Publishing.
  14. Ozturk, T. and Bayrakl, M. (2005), "The possibilities of using tobacco wastes in producing lightweight concrete", Agricultural Engineering International: CIGR Journal.
  15. Patra, R.K. and Mukharjee, B.B. (2017), "Properties of concrete incorporating granulated blast furnace slag as fine aggregate", Adv. Concrete Constr., Int. J., 5(5), 437-450. https://doi.org/10.12989/acc.2017.5.5.437
  16. Rahmani, A.A., Chemrouk, M. and Boudjelal, A.A. (2020), "Rheological, physico-mechanical and durability properties of multi-recycled concrete", Adv. Concrete Constr., Int. J., 9(1), 9-22. https://doi.org/10.12989/acc.2020.9.1.009
  17. Rashad, A.M. (2005), "Mitigating the Elevated Temperature Effects and Predicting the Residual Strength of Loaded RC Short Columns", Ph.D. Thesis; Cairo University, Faculty of Engineering, Egypt.
  18. Rashad, A.M. (2018), "Lightweight expanded clay aggregate as a building material-An overview", Constr. Build. Mater., 170, 757-775. https://doi.org/10.1016/j.conbuildmat.2018.03.009
  19. Real, S., Gomes, M.G., Rodrigues, A.M. and Bogas, J.A. (2016), "Contribution of structural lightweight aggregate concrete to the reduction of thermal bridging effect in buildings", Constr. Build. Mater., 121, 460-470. https://doi.org/10.1016/j.conbuildmat.2016.06.018
  20. Shafigh, P., Mahmud, H.B., Jumaat, M.Z. and Zargar, M. (2014), "Agricultural wastes as aggregate in concrete mixtures - A review", Constr. Build. Mater., 53, 110-117. https://doi.org/10.1016/j.conbuildmat.2013.11.074
  21. Shafigh, P., Asadi, I. and Mahyuddin, N.B. (2018), "Concrete as a thermal mass material for building applications-A review", J. Build. Eng., 19, 14-25. https://doi.org/10.1016/j.jobe.2018.04.021
  22. Standard, M. (2003), Portland cement (ordinary and rapidhardening): Part 1. Specification (Second revision), Malaysia, MS, 522.
  23. Tabatabaeikia, S., Ghazali, N.N.B.N., Chong, W.T., Shahizare, B., Izadyar, N., Esmaeilzadeh, A. and Fazlizan, A. (2016), "Computational and experimental optimization of the exhaust air energy recovery wind turbine generator", Energy Convers. Manag., 126, 862-874. https://doi.org/10.1016/j.enconman.2016.08.039
  24. Tong, X.C. (2011), "Characterization Methodologies of Thermal Management Materials", In: Advanced Materials for Thermal Management of Electronic Packaging, Springer, pp. 59-129.
  25. Valia, K.S. and Murugan, S.B. (2020), "Effect of different binders on cold-bonded artificial lightweight aggregate properties", Adv. Concrete Constr., Int. J., 9(2), 183-193. https://doi.org/10.12989/acc.2020.9.2.183
  26. Wu, Y., Wang, J.-Y., Monteiro, P.J. and Zhang, M.-H. (2015), "Development of ultra-lightweight cement composites with low thermal conductivity and high specific strength for energy efficient buildings", Constr. Build. Mater., 87, 100-112. https://doi.org/10.1016/j.conbuildmat.2015.04.004
  27. Yuksek, S. (2019), "Mechanical properties of some building stones from volcanic deposits of mount Erciyes (Turkey)", Materiales de Construccion, 69(334), 187. https://doi.org/10.3989/mc.2019.04618
  28. Yun, T.S., Jeong, Y.J., Han, T.-S. and Youm, K.-S. (2013), "Evaluation of thermal conductivity for thermally insulated concretes", Energy Build., 61, 125-132. https://doi.org/10.1016/j.enbuild.2013.01.043
  29. Zhang, W., Min, H., Gu, X., Xi, Y. and Xing, Y. (2015), "Mesoscale model for thermal conductivity of concrete", Constr. Build. Mater., 98, 8-16. https://doi.org/10.1016/j.conbuildmat.2015.08.106