Assessment of thermal conductivity,thermal diffusivity and specific heat capacity of lightweight aggregate foamed concrete

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. © 2016 penerbit utm press. all rights reserved.