PASS 450 A Admixture is a superplasticizer based on polycarboxylate acid. Made with selected polymers. this product is formulated to provide excellent water reduction. which results in higher early strength. improved workability, and enhanced durability. It also increases the concrete's ultimate strength and reduces its cement content while maintaining mechanical properties. PASS 450 A decrease the amount of water by (30-40)% to cement ratio.