Overview
PENETRON ADMIX® RP (Red Pigment integral crystalline waterproofing admix) is added to the concrete mix at the time of batching. It is typically used in the precast industry and includes a red pigment that makes it easy for visual inspection at a distance. PENETRON ADMIX® RP consists of Portland cement and various active proprietary chemicals. The active proprietary ingredients in PENETRON ADMIX® RP react with the moisture in fresh concrete, as well as with the by products of cement hydration, to cause a catalytic reaction, which generates a non soluble crystalline formation throughout the pores and capillary tracts of the concrete. Thus, the concrete becomes permanently sealed against the penetration of water or liquids from any direction and is protected from attack by aggressive chemicals and corrosive effects on steel reinforcing.
Applications
- Sewers and manholes
- Precast structures, such as vaults, septic tanks, pipes and culverts
Advantages
- Highly resistant to aggressive chemicals
- Improves corrosion resistance
- Can seal hairline cracks up to 0.5 mm (1/51 in)
- Resists extreme hydrostatic pressure from either positive or negative surface of the concrete slab
- Becomes an integral part of the concrete
- Less expensive than other options
- Permanent
- Added to the concrete at time of batching and therefore not subject to climatic restraints
- Improves durability of concrete
- Permeability Reducing Admixture for Hydrostatic conditions (PRAH)
- Zero VOC: PENETRON powdered products contain zero volatile organic compounds and are safe for use both outdoors and in confined indoor spaces
- Exceeds requirements of ASTM C494 S (Specific Performance Admixtures)
Dosage
PENETRON ADMIX® RP is designed to be dosed at the rate of one soluble bag per cubic meter (or cubic yard) of concrete. For most mix designs in use, this falls within the range of acceptability of 1% by weight of cementing materials. Consult with Penetron’s Technical Department for assistance in verifying the appropriate dosage rate.
Special considerations
When incorporating PENETRON ADMIX® RP, the temperature of the concrete mix should be above 4ºC (40ºF).
Packaging
PENETRON ADMIX® RP is available in 3 kg (6.6 lb) soluble bags, packed 3 bags to a plastic pail.
Storage and shelf life
PENETRON products must be stored dry at a minimum temperature of 7ºC (45ºF). Shelf life is one year when stored under proper conditions.