RILEM TC 277-LHS report: additives and admixtures for modern lime-based mortars

Abstract The scope of this collective paper produced in the frame RILEM TC 277-LHS is to provide sound knowledge on use additives/admixtures lime-based mortars, based literature and practice. most widely known are systematically presented. Their main effects testing their performance have been properly tabulated. It well that a plethora every year by chemical industries. However, when using them compatibility durability aspects primary importance. introduction lime mortars was imposed need improve important properties these composites fresh hardened state, namely, workability, durability, early-age long-term strength reduce defects, such as shrinkage long setting time. In review paper, terminology proposed EN 16572 followed, designating additive constituent added small quantity binder, admixture substance quantities at least 1% w/w mix. classified according action validation with specific methodologies highlights dosage sensitivity develop further standardization. combination different additives several studies resulted promising strategy enhance mortars. recently developed admixtures be evaluated reference other mortar constituents, overall render studied. Finally, adopting similar for cement-based will facilitate better comparison assessment issues.