“…This mainly includes lightweight concrete, as it represents the most influential aspect of thermal conductivity and is lightweight with less loading on the foundation, thus reducing the use of rebar. Since the weight of rough aggregate (gravel) in concrete represents 70-75% of the weight of concrete [1]. The Cobourg limestone has a very low porosity rock consisting of lighter nodular regions, predominantly calcite and darker regions consisting of calcite, quartz, dolomite, and an appreciable clay fraction [2].…”