Abstract
In modern construction, concrete has been recognized as a very useful material, but one of the weaknesses is the low insulation performance. The application of lightweight aggregate can be a solution for improving concrete performance. In additionally, Thermal reaction of materials called PCMs.(Phase Change Materials) is very unique, and they are estimated to be very useful depending on how to use. In these background, the properties and heat storage capacities of lightweight aggregates impregnated with PCM (Phase Change Material) storage are studied from the experimental aspects in this paper. The results of this study were as follows; The condition tests of lightweight aggregates impregnated with PCM represent significant decrease of water absorption ratio, which was less than 1%, as well as 2-11% increase of density comparing to initial absolute dry conditions. Differential scanning calorimetry of the aggregated impregnated with PCM indicates 4-10 J/g of the amount of heat storage capacity. The results show that it is considered that lightweight aggregate concrete impregnated with PCM may have thermal energy storage capacity.
