Fluidez de morteros cementíceos con arenas machacadas

Abstract

The present experimental study explored the relationship between mortar flow ability and the voids content in crushed sand to determine the effect of grain shape and surface texture as well as dust content on the behaviour of fresh mortar. The findings revealed a close correlation between voids content and the volume of paste needed for mortar to begin to flow as a continuous material, mortar flow ability and the water content needed to attain a given flow ability. The comparison of the empirical findings to the results obtained with the Larrard (1, 2) model provided further information on the effect of sand grain morphology on fresh mortars.