International Conference on “Cement – Based Materials Tailored for a Sustainable Future”, İstanbul, Türkiye, 27 - 28 Mayıs 2021, ss.258-264
The grout injection is a technique widely used to repair a damaging event to restore the masonry to its original condition. The technique can also be used to strengthen existing masonry buildings by injection grout into voids. To ensure the optimum performance of injection grouts, the fresh grout properties, i.e. rheological properties needs to be evaluated. The plastic viscosity and yield stress etc. enlighten us about the rheological properties of the grout which can be determined by laboratory tests. Rheological necessities such as low yield stress and plastic viscosity required for a successful injection can be achieved with the most suitable grout combination. Within this scope, grout was produced with a certain amount of natural hydraulic lime and waste volcanic tuff from Cappadocia region. In order to examine the rheological behaviour of grout; fluidity, volume stability, penetrability and water retention tests were performed. Plastic viscosity and yield stress of grout were measured by using a rotational rheometer. Environmental conditions such as temperature may change the rheological properties of grouts. Therefore rheological measurements were performed at 5 °C, 20 °C, and 40 °C in order to evaluate the effects of temperature on the rheological behaviour of hydraulic lime-based grout. Consequently, this study aims to contribute to a better understanding of the rheological behavior of lime-based grouts under different temperatures.