查看文章

In this research, we prepared macro-encapsulated paraffin-lightweight aggregate (LWA) for the development of structural–functional integrated normal weight aggregate concrete (NWAC). The macro-encapsulated paraffin–LWA was prepared by incorporation of paraffin into porous LWAs through vacuum impregnation. The sealing performance of the epoxy was evaluated by thermal cycling test while the thermal conductivity of macro encapsulated Paraffin–LWAs was improved by incorporating different percentages of graphite powder into epoxy. The chemical compatibility, thermal properties, thermal stability and reliability of macro-encapsulated paraffin–LWA was also determined. Finally, the compressive strength and thermal performance of concrete containing macro-encapsulated paraffin–LWA was evaluated. Test results showed that the maximum percentage of paraffin absorbed by LWA was 70%. The thermal …