Compressive strength and ultrasonic pulse velocity of mortars and pastes, elaborated with slaked lime and high purity hydrated lime, for restoration works in México

Abstract

Restoration works for the cultural heritage in México have commonly used traditional materials, being the slake lime one of the main solutions employed. Nevertheless, other lime products have not been studied or applied in patrimonial works. The main objective of this research was to verify if high purity limes can be used as an alternative for restoration works, knowing that they have a higher powder surface area and consequently great efficiency. Compressive strength and ultrasonic pulse velocity tests, (UPV), were carried on specimens of slaked lime and high purity limes in pastes and mortars, to compare the values obtained and decide in which restoration works they could be employed. Results showed a better performance of the high purity lime in mortars and slightly better values of the slaked lime for pastes. © 2020 Trans Tech Publications Ltd, Switzerland.