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.