Effect of permeability-reducing admixtures on concrete properties at different cement dosages

Concrete is the most common building material used worldwide. Significantly high strength values have been achieved owing to developing technology. Besides compressive strength, durability properties should also be taken into consideration since concrete exposed several external effects throughout its service life. Durability are mainly associated with voids in internal structure and surface of concrete. Even if not any effects, contains pores micro-cracks. These cracks enlarge influence new developed. Therefore, various methods prevent permeability harmful liquids gases structures. In this study, permeability-reducing admixtures (PRAs) cement dosages were produce mixtures. The main purpose examine interaction these additives dosage. Workability, depth water penetration under pressure tests conducted observe effect PRA on parameters. admixture crystallized created a fuller volume. While increased as result product, decreased. Slump revealed that additive was compatible all dosages, it did significantly affect workability Expectedly, dosage increased, while positive gradually contributed decrease penetration, but impact decreased increased. It concluded based present findings additive, which effective at lowest dosage, by 9.44% 26.09%.