International Conference on “Cement – Based Materials Tailored for a Sustainable Future”, İstanbul, Turkey, 27 - 28 May 2021, pp.236-241
Grouting is the most commonly used method for consolidation
of masonries and purposed to increase the continuity of damaged masonry and
hence its strength. Since grouting is an irreversible intervention,
injectability of grouts should be checked before consolidation of a historical
monument. Optimum fresh grout properties such as fluidity, penetrability and
stability should be the main focus point in order to provide a sufficient flow
of the grout inside the masonry. Furthermore, durability in the natural exposure
conditions of the materials should be investigated before the grout
application. In this study, grouts were produced by using hydraulic and air
lime as binder. Water content was determined in accordance with sufficient
fluidity and penetrability values. Chemical admixtures were also used to obtain
required fresh properties. In order to examine fresh characteristics of grouts,
fluidity, volume stability and penetrability tests were performed in accordance
with the related standards. The compressive strength, freezing-thawing and also
sulfate resistance were evaluated on the grouts at the ages of 90 days.
According to tests results; hydraulic lime based grout showed the highest
compressive strength and resistance against freezing-thawing and sulfate effect.
Since there are limited studies in the literature about the durability of
lime-based grouts, this research will contribute to the durability assessment
of grouts used for the consolidation of historical structures.