CWPA 800 Concrete Waterproofing Admixture

Specifically formulated for use in normal and light weight concrete mixes to produce low permeability concrete across a wide spectrum of mix designs, CWPA 800 is used in but not limited to elevator pits, retaining walls, foundations, water retaining structures (pools, cisterns, dams, etc.), footings, and other underground structures.

Features and Benefits:
• Completely blocked water migration through hardened concrete Per CRD C48-92
• Reduced Permeability (per ASTM D5084)
– 98% less permeable as compared to non-treated control specimen
• Protects against alkali and efflorescence attack from the concrete
• Inhibits corrosion due to decreased permeability of concrete
• Mitigating Effect on ASR (per ASTM C1260) – 10% reduction of effects of ASR compared to control specimen

• Mitigating Effect on Shrinkage (per ASTM C157) – 10% shrinkage reduction by day 28 from casting of specimen
• Reduces slab warp, plastic shrinkage cracking and crazing
• Rapid Strength Gain (per ASTM C39/39M) – Achieves design strength in three days after casting of specimen due to internal curing
• No thermal cracking
• Type S Admixture (per ASTM C494/C494M) Certified