Long-Term Behavior Related to Water Ingress in Mortars Which Combine Expanded and Natural Cork Lightweight Aggregates and Eco-Friendly Cements

The water ingress plays an important role in building materials’ degradation. use of lightweight aggregates is interesting terms sustainability, because they reduce the density cement-based materials, among other advantages. development and new aggregates, such as cork granulates, a current research topic. In present work, performance sustainable mortars which combined expanded natural cements with slag, fly ash limestone has been studied. Mortars produced sand clay were also prepared. Bulk density, absorption, drying capacity gel capillary pores Tests carried out at 28 days 1 year. A good behavior generally observed when addition was incorporated to binder, especially slag or ash. Regarding non-standardized showed lower absorption volume permeable pore space long term than cork. At one year, had adequate compared those clay, may be due high small (100 nm–1 µm) mortars.