Abstract

The present paper evaluates the performance of matured hydraulic grouts, with respect to their composition and the induced microstructural characteristics. Four different grout compositions were examined; three grouts based on natural hydraulic lime (NHL5), plain and in combination with pozzolan, and a ternary white cement - pozzolan - hydrated lime mixture. Both grout-only specimens and composite injected material have been examined and injected grout - masonry material interaction issues are discussed.