Product Name: KER-AD D 440
Code: 2644090006
Water Reducer Admixture
Description: KER-AD D 440 is a chloride-free, liquid water-reducing admixture designed to enhance concrete’s workability and mechanical properties. By optimizing the water/cement ratio, it facilitates easier placement and compaction of concrete, leading to improved density and reduced permeability in the hardened state. Additionally, KER-AD D 440 retards setting time, providing extended workability periods, which is particularly beneficial in hot climates or for complex pours.

Product Features:

• Chloride-free formulation, preventing corrosion of reinforcement
• Enhances concrete workability and fluidity
• Retards setting time, allowing extended workability
• Improves mechanical strength and durability
• Reduces permeability, enhancing resistance to aggressive environments
• Compatible with various cement types

Uses:

• Suitable for ready-mix and precast concrete applications
• Ideal for hot weather concreting to counteract rapid setting
• Beneficial in complex pours requiring extended workability
• Enhances performance of high-strength and durable concrete structures

Application Guide:

1. Dosage:
   • As a plasticizer: Add 3 to 6 ml per kilogram of cement.
   • As a water reducer (up to 20% water reduction): Add 4 to 8 ml per kilogram of cement.
2. Mixing:
   • Introduce KER-AD D 440 after mixing aggregates with water.
   • Mix thoroughly for at least 3 additional minutes to ensure uniform distribution.
3. Precautions:
   • Do not add directly to dry cement or aggregates.
   • Conduct preliminary tests to determine optimal dosage based on specific project conditions.
4. Storage:
   • Store in a tightly closed container, away from direct sunlight, at temperatures between 20°C and 30°C.

Pros and Cons:

Technical Specifications: