ASSESSMENT OF THERMAL CONDUCTIVITY, THERMAL DIFFUSIVITY AND SPECIFIC HEAT CAPACITY OF LIGHTWEIGHT AGGREGATE FOAMED CONCRETE
DOI:
https://doi.org/10.11113/jt.v78.8374Keywords:
Foamed concrete, lightweight aggregate, thermal conductivity, thermal diffusivity, specific heat capacityAbstract
This paper focuses on experimental study to investigate the thermal conductivity, thermal diffusivity and specific heat capacity of lightweight aggregate foamed concrete. All the specimens used were tested at 1250 kg/m3 of concrete density. The mix design proportion used for cement, sand and water ratio was 1: 2.67: 0.50. The artificial lightweight aggregate were used as additives by volume percentage of 10%, 13% and 17% based on specific density of artificial lightweight aggregate. Thermal test result shows that thermal conductivity value has fulfill the requirement for semi structure with thermal insulation characteristic which is below than 0.75W/mK and the specimen highest value is 0.66 W/mK. The rate for thermal diffusivity shows that high percentages of lightweight aggregate will reduce the thermal diffusivity. Specific heat capacity test show that the reading was higher when the percentage of lightweight aggregate is higher in lightweight concrete. This is due to the existence of moisture in the lightweight aggregate.Â
References
Penesar, D. K. 2013. Cellular Concrete Properties and the Effect of Synthetic and Protein Foaming Agents. University of Toronto. 575-584.
Short, A., Kinniburgh, W. 1962. Lightweight Concrete. Revised Edition. The Architectural Association School of Architecture, London. 45-49.
Johnson Alengaram, U., Al Muhit, B. A., Jumaat, M. Z., Michael, L. Y. J. 2013. A Comparison of the Thermal Conductivity of Oil Palm Shell Foamed Concrete with Conventional Materials. Materials & Design. 51: 522-529.
Soleimanzadeh, S., M. A. Othuman Mydin. 2013. Influence of High Temperatures on Flexural Strength of Foamed Concrete Containing Fly Ash and Polypropylene Fiber. International Journal of Engineering. 26(1): 365-374.
Othuman Mydin, M. A. 2011. Thin-walled Steel Enclosed Lightweight Foamed Concrete: A Novel Approach to Fabricate Sandwich Composite. Australian Journal of Basic and Applied Sciences. 5(12): 1727-1733.
Othuman Mydin, M. A., Y. C. Wang. 2012. Mechanical Properties of Foamed Concrete Exposed to High Temperatures. Journal of Construction and Building Materials. 26(1): 638-654.
Othuman Mydin, M. A., Y. C. Wang. 2012. Thermal and Mechanical Properties of Lightweight Foamed Concrete (LFC) at Elevated Temperatures. Magazine of Concrete Research. 64(3): 213-224.
Bouguerra, A., Laurent, J. P., Goual, M. S., Queneudec, M. 1997. The Measurement of the Thermal Conductivity of Solid Aggregate Using the Transient Plane Source Technique. Journal of Physics D: Applied Physics. 30: 2900-2904.
Sahu, J. N., Abnisa, F., Daud, W. M. A, Husin, W. M. W. 2011. Utilization Possibilities of Palm Shell as a Source of Biomass Energy in Malaysia by Producing Bio-oil in Pyrolysis Process. Biomass and Bioenergy. 35(5): 1863-1872.
Awang, H., M. A. Othuman Mydin, A. F. Roslan. 2012. Microstructural Investigation of Lightweight Foamed Concrete Incorporating Various Additives. International Journal of Academic Research. 4(2): 197-201.
Othuman Mydin, M. A. 2013. Modeling of Transient Heat Transfer in Foamed Concrete Slab. Journal of Engineering Science and Technology. 8(3): 331-349.
Othuman Mydin, M. A. 2013. An Experimental Investigation on Thermal Conductivity of Lightweight Foamed concrete for Thermal Insulation. Jurnal Teknologi. 63(1): 43-49.
Othuman Mydin, M. A., Y. C. Wang, 2011. Elevated-Temperature Thermal Properties of Lightweight Foamed Concrete. Journal of Construction & Building Materials. 25(2): 705-716.
Mustaffa, W. E. S. B., Mehilef, S., Saidur, R., Safari, A. 2011. Biomass Energy in Malaysia: Current State and Prospects. Renewable & Sustainable Energy Review. 15(7): 3360-3370.
Khan, M. I. 2002. Factor Affecting the Thermal Properties of Concrete and Applicability of Its Prediction Models. Building and Environment Journal. 37(6): 607-614.
Newman, J. B. 1993. Structural Lightweight Aggregate Concrete, Chapter 2: Properties of Structural Lightweight Aggregate Concrete. Chapman & Hall.
Okpala, D. C. 1990. Palm Kernel Shell as Lightweight Aggregate in Concrete. Building and Environment Journal. 25(4): 291-296.
Roslan, A. H., H. Awang, M. A. Othuman Mydin. 2013. Effects of Various Additives on Drying Shrinkage, Compressive and Flexural Strength of Lightweight Foamed Concrete (LFC). Advanced Materials Research Journal. 626: 594-604.
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