Xypex Concentrate

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What is Xypex? | Xypex Concentrate

XYPEX CONCENTRATE

CEMENTITIOUS CRYSTALLINE

Concrete Waterproofing

Description

Xypex is a unique chemical treatment for the waterproof- ing, protection and repair of concrete. XYPEX CONCEN- TRATE is the most chemically active product within the Xypex Crystalline Waterproofing System. When mixed with water, this light grey powder is applied as a cemen- titious slurry coat to above-grade or below-grade con- crete, either as a single coat or as the first of a two-coat application. It is also mixed in Dry-Pac form for sealing strips at construction joints, or for the repairing of cracks, faulty construction joints and honeycombs. Xypex pre- vents the penetration of water and other liquids from any direction by causing a catalytic reaction that produces a non-soluble crystalline formation within the pores and capillary tracts of concrete and cement-based materials.

Recommended for:

• Reservoirs
• Sewage and Water Treatment Plants • Underground Vaults
• Secondary Containment Structures
• Foundations
• Tunnels and Subway Systems
• Swimming Pools
• Parking Structures
• Advantages
• Resists extreme hydrostatic pressure
• Becomes an integral part of the substrate
• Can seal hairline cracks up to 0.4 mm
• Allows concrete to breathe
• Highly resistant to aggressive chemicals
• Non-toxic
• Does not require a dry surface
• Cannot puncture, tear or come apart at the seams
• No costly surface priming or leveling prior to application
• Does not require sealing, lapping and finishing of seams at corners, edges or between membranes
• Can be applied to the positive or the negative side of the concrete surface
• Does not require protection during backfilling or  during placement of steel, wire mesh or other materials
• Not subject to deterioration
• Permanent

Concrete Waterproofing By CrystallizationTM

Packaging

Xypex Concentrate is packaged in various sizes. Contact your local Xypex representative for details.

Storage

Xypex products must be stored dry at a minimum tem- perature of 7oC. Shelf life is one year when stored under proper conditions.

Coverage

For normal surface conditions, the coverage rate for each Xypex coat is 0.65 – 1.0 kg/m2.

Test Data

PERMEABILITY

U.S. Army Corps of Engineers (USACE) CRD C48-73, “Permeability of Concrete”, Pacific Testing Labs, Seattle, USA
Two inch (51 mm) thick, 2000 psi (13.8 MPa) Xypex- treated concrete samples were pressure tested up to a 405 ft. (124 m) water head (175 psi/1.2 MPa), the limit of the testing apparatus. While untreated samples showed marked leakage, the Xypex-treated samples (as a result of the crystallization process) became totally sealed and exhibited no measurable leakage.

DIN 1048, “Water Impermeability of Concrete”, Bautest – Corporation for Research & Testing of Building Materials, Augsburg, Germany
Twenty cm thick Xypex-treated concrete samples were pressure tested up to 7 bars (230 ft./70 m water head) for 24 hours to determine water impermeability. While the reference specimens measured water penetration up to a depth of 92 mm, Xypex-treated samples measured water penetration of zero to an average of 4 mm.

ÖNORM B 3303, “Water Impermeability of Concrete”, Technologisches Gerwerbemuseum, Federal Higher Technical Education & Research Institute,
Vienna, Austria

Xypex-treated concrete samples were pressure tested to a maximum 7 bars (230 ft./70 m water head) for 10 days. Test revealed that while 25 ml of water had penetrated the untreated concrete samples, zero ml had penetrated the Xypex-treated samples. Test specimens were then broken and showed water penetration to a depth of 15 mm on untreated samples but no measurable water penetration on the Xypex-treated samples.