Effect of paraffine wax on the mobility of injection cement mortars

This study investigates the mobility of injection mortar and the influence of a paraffin-based modified additive on its flowability. The research pursues two main objectives: to develop the optimal composition of the additive and to evaluate its effect on mortar mobility at various concentrations. The additive significantly enhances mortar mobility, achieving peak performance at a 0.6% concentration. Further increases beyond 0.6% slightly reduce mobility but maintain an overall positive effect. Additionally, higher concentrations contribute to improved solution stability, as reflected by a reduced coefficient of variation. The additive not only improves the flow characteristics of injection mortar but also ensures its homogeneity and stability. The optimal additive dosage is determined to be within the range of 0.6% to 1.0% by cement weight. The application of digital image analysis in the study demonstrated high measurement accuracy and reproducibility, confirming its suitability for evaluating construction mixtures. The proposed additive shows strong potential for use in construction applications requiring high mortar mobility without compromising structural integrity.