Why Xypex for General Construction-Foundations

Meeting the Challenge

Protecting Foundations

The structural integrity of building foundations, whether deep or shallow, can be seriously compromised by hydrostatic pressure and water leakages associated with high water tables. Inadequate waterproofing, cracking and joint failure are problems that will result in the deterioration of concrete and the leaking of water into the substructure. In the short term, this can lead to the loss of sub-structure functionality and, over time, the structural weakening of the building itself.

Xypex has an extensive track record in the waterproofing and protection of building foundations. From single-unit housing to high-rise structures, Xypex is recognized by major contractors as a key supplier to the construction industry. Xypex’s non-toxic Crystalline Technology protects thousands of foundations worldwide. Whether used for new construction or the rehabilitation of existing structures, Xypex has gained an exceptional reputation for protecting the structural integrity of concrete, and resisting water leakage even under extreme hydrostatic pressure.

Xypex products play a key role in the waterproofing of concrete against water leakage, even against extreme hydrostatic pressure. The unique Xypex technology also protects concrete against the effects of sulfate attack and crack or joint failure.

Protecting Foundations

The waterproofing and protection of concrete in building foundations has the following objectives:

To prevent the passage of water through the concrete due to hydrostatic pressure so as to protect the interior of the substructure from water-damage, and the reinforcing steel from corrosion. Depending on the local environment, concrete should also be protected from sulphate attack, and chloride attack in marine environments.

The nature of concrete and its installation means having to deal with permeability problems created by the natural porosity of the concrete as well as defects (faulty cold and construction joints, honeycombs, rock pockets and tie holes), joint leaks, freeze/thaw damage and drying shrinkage cracks. These problems typically leave the structure open to active leaks and accelerate the possibility of reinforcing steel corrosion and surface deterioration.

Leaking Basements

Construction defects (rock pockets, honey combs & untreated tie holes)

Leaking though cracks/joints

Affected Areas

Structural Walls

Raft Slabs / Mat Slabs

Pile Caps

Shortcrete

Footings

Slab-on-grade

Xypex Crystalline Technology

Xypex products use the natural porosity of concrete and chemical diffusion to penetrate its pores and capillaries. Inside the concrete, Xypex chemicals react with unhydrated cement particles and the by-products of cement hydration to form a non-soluble crystalline structure deep within the substrate. In this condition, the concrete becomes impermeable, preventing the penetration of liquids and chemicals from any direction even under extreme hydrostatic pressure. The chemical resistant properties of the crystalline structure will mitigate the attack of sulphates and chlorides that may be present in subsoils and waters.

The Xypex Advantage

Xypex Crystalline Technology works inside the concrete, thereby avoiding the problems typical of traditional barrier products.

  • Permanent and reactivates whenever water is present
  • Self-heals static cracks up to 0.5 mm (0.02 in)
  • May be applied on negative or positive side of concrete surface
  • Requires no additional protection as with preformed membranes
  • Resistant to chemical attack
  • Not subject to deterioration problems encountered by surface coatings and membranes

Proven Performance Worldwide

Comprehensive quality systems and standards along with thorough testing in the lab and the field have resulted in Xypex’s highly respected position in the concrete industry. Xypex has been extensively tested by independent testing laboratories in the U.S., Canada, Australia, Japan, Europe and other countries.

Xypex Admix for New Concrete Construction

Xypex Admix is the preferred choice for installing Xypex Crystalline Technology into new concrete structures for building foundations. Because Xypex Admix is blended into the mix at the time of batching, it becomes an integral part of the entire concrete matrix, thus reducing the potentially damaging effects of water penetration and chemical attack. Xypex Admix can be installed in pre-cast elements, cast-in-place structures or added to shotcrete concrete mixtures.

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Xypex Admix Advantages

  • Permanent integral waterproofing
  • Enhances concrete durability
  • Value engineering
  • Non-toxic
  • Non-combustible
  • Resists damaging effects of water penetration and chemical attack

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PRECAST
CAST-IN-PLACE
SHOTCRETE

Rehabilitation & Repair

Xypex’s coating systems and repair products enable owners, engineers and contractors to economically and confidently repair damaged and leaking below grade structures, even from the negative side. Xypex Concentrate and Modified are applied as slurry coatings to the surface of the concrete. Unlike other materials that need a dry substrate, Xypex products require a moist surface – a condition typical of leaking substructures. Xypex Patch’n Plug, Concentrate Dry-Pac and Megamix products are specifically designed to permanently repair concrete defects such as honeycombs, static cracks and faulty cold or construction joints. These products are also effective at filling tie-holes and sealing around pipe penetrations.

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Xypex Coating Advantages

  • Doesn’t require a dry surface
  • Apply to either side of the concrete
  • Won’t puncture, blister or tear
  • No costly surface priming or leveling
  • Sealing, lapping or finishing is not required
  • No need for protection during backfilling
  • Permanent waterproofing
  • Enhanced concrete durability
  • Doesn’t contain VOCs
  • Non-toxic and non-combustible
  • Can be applied safely in confined spaces

Other Accessory Products are also available.
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COATING: Concentrate & Modified
PLUGGING: Patch’n Plug
REHABILITATION: Patch’n Plug & Megamix
St. George’s Residential Care Facility
General Construction Foundation

St. George’s Residential Care Facility

Bermuda
Xypex Admix C-1000 was used to waterproof the tank, ground floor slab and the exterior of this care facility.
Votive Temple to the Virgin of Coromoto
General Construction Foundation

Votive Temple to the Virgin of Coromoto

Venezuela
The concrete slabs of the underground library and conference rooms were leaking badly due to the high water table of the surrounding area. Xypex Dry-Pac was applied to the joints, followed by a coat of Xypex Concentrate.
Hotel Deputatilor
General Construction Foundation

Hotel Deputatilor

Romania
This large pre-war building underwent restructuring to provide space in the basement for members of parliament. Xypex Concentrate was applied to prevent water seepage and mortar, dosed with Xypex Admix was applied to the construction joints.
Sun Wah Tower
General Construction Foundation

Sun Wah Tower

Vietnam
Upon consulting with their Japan headquarters, the decision resulted in selecting Xypex for the job. Total area treated was 198 m2 and 102 linear meters of construction joints. 

Volksbank
General Construction Foundation

Volksbank

Croatia
The old mortar on the walls and floor were leaking badly in many places. Xypex Patch'n Plug and Concentrate were used to repair 100 m of cracks and joints. The entire surface was then treated with a two-coat application of Xypex Concentrate and Modified.
Sirca Commercial Centre
General Construction Foundation

Sirca Commercial Centre

Venezuela
The concrete roof slab of this exposed parking area was waterproofed with Xypex Concentrate as a preventative measure.
Premier Pacific Pinnacle
General Construction Foundation

Premier Pacific Pinnacle

Sri Lanka
Xypex Admix C-1000 NF was added to the concrete mix to waterproof the basements in this mixed development project.
Puerto Madero Office Building
General Construction Foundation

Puerto Madero Office Building

Argentina
Xypex Concentrate DS-1 (dryshake) was used on the freshly poured foundation slab to waterproof and protect the concrete.
Faculty of Medicine
General Construction Foundation

Faculty of Medicine

Argentina
The spalling of the parge coat surface was repaired using Xypex Concentrate as the bonding layer, and to protect the reinforcing steel. 
Baramante Piazza Building
General Construction Foundation

Baramante Piazza Building

Philippines
Xypex Patch'n Plug and Concentrate were used to repair and waterproof tie-holes and the concrete slab. 
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