Abstract Scope |
The objective of this work was to evaluate the mechanical, physical and microstructural properties of the puzolean effect of Microsilica in Mortar Mixtures.The chemical analysis was carried out, Mechanical-physical and microstructural cement and microsilica, obtaining that this puzolana are composed mainly of amorphous silica, Microsilica, 94.8 %, which reacts with calcium hydroxide, providing cement properties to mortar mixtures. At the same time this puzolana has a high efficiency to decrease the alkaline reactivity of aggregates, Microsylice, 94.6 % Four mortar mixtures were developed, one standard mixture without puzolanas and three mixtures with substitution of 5, 7, and 9% by weight of cement by Microsylice, all mixtures used by Microsilica managed to maintain the mechanical resistances obtained in the Psylice mixture. Noting the best behavior for the MS 5% mixture, the results also indicate that this puzolana decreases the permeability of concrete to Ion chloride. |