Airports – Tarmacs & Runways

Joints – Restoration

Joint spalling and potholes are common problems of concrete tarmacs and runways, requiring durable, high-impact resistant material that can withstand heavy loads (planes and trucks) – fast-setting to minimize downtime.

Repair material must reduce future maintenance and minimize FOD (foreign-object debris) that causes significant airplane damage and be resistant to commonly used chemicals such as oil, fuel, and deicers.

Surface Preparation

Make a saw cut in solid concrete around the spalling / pothole area to allow for a minimum 2” (5 cm) depth of repair.  Use heavy sandblast to remove any delaminated, spalled and contaminated concrete to obtain a clean and well profiled concrete surface.

Fibre-Patch ES Plus – open to traffic in 1-hour

Fast-setting – reaches 17-18 MPa (2,500-2,700 psi) in 1-hour; shrinkage compensated patching mortar with long-term crack resistance, offers superior freeze/thaw resistance, and is chloride resistant.

Fibre-Patch ES ST – open to traffic in 3-hours

Fast-setting, shrinkage compensated patching mortar with long-term crack resistance, offers superior freeze/thaw resistance, and is chloride resistant.

Concrete Toppings – Traffic Bearing

Concrete pavements in airports suffer from a variety of distress:

  • shallow surface deterioration due to freeze thaw, improper finishing, or fine shrinkage cracks
  • concrete spalls, localized or widely spread, depth varies from few mm to several cm
  • joint spalling, pumping, or deep corner breaks

Gemite offers a variety of solutions for the repair of airport pavements that minimize down time require by a partial or full depth slab replacement.  Gemite’s materials are engineered to meet exact requirements, with simple application methods to reduce costs and fit into tight schedules.

Surface Preparation

Remove any delaminated and spalled concrete and shot blast or scarify surface to remove any contamination and obtain a clean and well profiled concrete surface.

Cem-Kote Barrier Cote 100 – for thicknesses 3-6 mm (1/8”-1/4”)

Super durable, abrasion & impact resistant, polymerized cementitious heavy-duty traffic coating suitable for restoration and protection of airport traffic surfaces.  It is spray or brush applied in 2-coats – can be opened to traffic after 24-hours of air-drying.

Gem-Crete HF ST – for thicknesses 6-12 mm (1/4”-1/2”)

Thicker traffic bearing overlay that has an exceptional fracture toughness and crack resistance, combined with superior abrasion resistance.

Gem-Crete HF ST

highly flowable – easily applied by screeding – tining finish provides superior traction. Under normal conditions it can be open to traffic after 48 hours of air-drying.

Gem-Crete HDO – for thicknesses 12-60 mm (1/2”-2”)

Heavy-Duty, highly fibre-reinforced traffic bearing bonded overlay is super tough and delivers excellent impact and abrasion resistance – over 25-years successful track record under high-traffic loads on highway bridge decks.

Cem-Kote Barrier Cote 100

bonding slurry is used to achieve superior bond strength required.  It is easily applied by screeding – with tined finish for superior traction.  Cure for 2-3 days using moist cure.

Advantages of Thin Traffic Bearing Bonded Toppings

  • Thin Application – less costly than partial slab replacement
  • Systems available for any Thicknesses
  • Easy & Fast Application – with Standard equipment & tools
  • High Abrasion & Impact resistance
  • UV stability
  • Easy maintenance

Asphalt Toppings – Traffic Bearing

The asphalt pavement surface suffers surface deterioration by oxidation, UV attack, freeze thaw and traffic.

Surface Preparation

Surface preparation is most important – use 35 MPa (5,000 psi) high-pressure water.

Cem-Kote Barrier Cote 100 – for thicknesses 3-6 mm (1/8”-1/4”)

Super durable, abrasion & impact resistant, polymerized cementitious heavy-duty traffic coating suitable for restoration and protection of airport traffic surfaces.  It is spray or brush applied in 2-coats and can be opened to traffic after 48-hours of air-drying.

Gem-Crete HF ST – for thicknesses 6-12 mm (1/4”-1/2”)

Thicker traffic bearing overlay that has an exceptional fracture toughness and crack resistance, combined with superior abrasion resistance.  Gem-Crete HF ST Is highly flowable, easily applied by screeding, and tining finish provides superior traction. Under normal conditions it can be open to traffic in after 3-days of air-drying.

Concrete Tanks for De-Icing Liquid & Wastewater

De-icing fluids are essential in cold climates for de-icing planes prior to take-off. Used de-icing fluids are collected and stored in concrete tanks, before treatment and disposal, to minimize environmental damage. Airports may also have other concrete tanks for storage of water contaminated with residual oils and solvents.

System selection depends on chemical composition

Cem-Kote Flex ST – for Restoration or New Tanks storing waste de-icing fluids

Cem-Kote Flex ST is a highly flexible polymer modified coating. In combination with a strip of Reinforcing Fabric HD over cracks it provides an excellent crack bridging capability and resistance to waste de-icing fluids.  Allow to air-dry for 3-days before exposure to contaminated water.

Cem-Kote CW Plus – for New Tanks storing waste de-icing fluids

Cem-Kote CW Plus is a crystalline water proofing. It is not flexible, and cracks are treated using Cem-Kote Flex ST with the strip of Reinforcing Fabric HD.  Moist-cure for 3-days before exposure to dirty water.

Nano-Shield OSP – for Tanks storing Oil / Solvent Contaminated water

Nano-Shield OSP (organic solvent protection) is an inorganic coating that protects concrete against penetration of Organic Solvents & Emulsified Hydrocarbons. Brush apply Nano-Shield OSP in 2-coats to build up specified thickness 2-3 mm, (80-120 mils), and moist-cure for 3-days before exposure to contaminated water.

Advantages of Nano-Shield OSP

  • Insensitive to Moisture – unlike polymer (epoxy, polyurethane) coatings
  • Fast acting – Solvent Impermeable in 48 hours
  • Resistant to alkali environment
  • Protects even highly porous concrete from Oil & Solvents
  • Non-Flammable
  • Completely Inorganic & ECO Friendly
  • Less expensive than polymeric coatings