Toll Free: 1.800.332.7325
Local/Global: 1.937.845.8776
made-in-usa

ConBlock CDA Red: Liquid Amorphous Crystal Waterproofing Admixture

ConBlock CDA Red, a liquid amorphous crystal waterproofing admixture, is designed to densify and waterproof concrete structures, such as: below-grade precast structures, wastewater treatment plants, sewer pipes, manholes and water containment tanks (non-potable water).

PRODUCT DESCRIPTION

ConBlock CDA Red is a liquid Permeability Reducing Agent (PRA) that densifies concrete. When added to Portland cement concrete, the compressive strength is 25% greater than reference concrete after one day; which allows faster handling of concrete. The amorphous silica crystal is fast-reacting, allowing performance to be realized immediately. Due to the tightening of the void space, concrete bleeding is reduced, allowing finishing operations to occur more quickly. After 21 days at 200 psi (CRD-C48) water did not pass through the concrete. ConBlock CDA Red’s densification properties allow it to be suitable for use in Hydrostatic (PRAH) and non-hydrostatic (PRAN) installations.

FEATURES AND BENEFITS

  • Easy to use liquid admixture
  • Densifies concrete and enhances durability
  • Accelerates cement hydration leading to strength development increase
  • Concrete waterproofing resistant to hydrostatic pressures up to 200 psi
  • reduces pore-water/bleed-water in placed concrete
  • Meets ASTM C494, Type S requirement / Meets AASHTO M194

DO NOT SUBJECT CONBLOCK CDA RED TO FREEZING TEMPERATURES BEFORE USE.

Physical Properties

Color: RED
Odor: None
Density: 9.1 – 9.3 lbs/gallon
pH: 5.9 – 6.0
Solids (%): 15.0 – 15.4
Viscosity: 300 – 400 Centipoise (cps)

TESTING

STANDARD TEST METHOD CONBLOCK CDA RED RESULTS VS. REFERENCE
CRD-C48 Permeability of Concrete Coefficient of permeability rating (K)=1.3x 1013 (96% reduction, 21 days
ASTM C39 Compressive Strength of Concrete 25% increase after 1 days; > 10% increase after 28 days
ASTM C1585 Measurement of Rate of Absorption of Water by Hydraulic Cement Concretes 36% reduction after 90 days
ASTM C157 Length Change of Hardened Hydraulic-Cement Mortar and Concrete Dry shrinkage of 0.013% (130 microstrain) after 56 days; 70% less than reference
ASTM C1567 Determining the Potential Alkali-Silica Reactivity of Cementitious Materials and Aggregate 10% reduction after 28 days
ASTM C1260 Determining the Potential Alkali-Silica Reactivity of Aggregates 18% reduction after 28 days
ASTM C1760 Bulk Electrical Conductivity of Hardened Concrete 15% reduction at 1000 Hz
BS EN 12390-8 Depth of Water Penetration under Pressure 36% reduction after 90 days