Product Data Sheet Show all documents

Sika® CarboDur® Plate UHM

Ultra High Modulus (UHM) Carbon Fibre Reinforced Polymer (CFRP) Plates

Sika CarboDur® Ultra High Modulus (UHM) Plates are high performance, corrosion resistant carbon fibre plates for strengthening metallic structures. The plates are manufactured to individual project dimensional specifications. When used in conjunction with SikaDur®-30 structural epoxy adhesive, they form the Sika CarboDur® Ultra High Modulus (UHM) Plate System.

  • Excellent durability.
  • Lightweight.
  • Low overall thickness; can be coated.
  • Easy transportation.
  • Outstanding fatigue resistance.
  • Minimal preparation of plate.
  • Combinations of high strength and modulus of elasticity available.
  • High alkali resistance.
  • Clean edges without exposed fibres.
  • Particularly suited to strengthening metallic structures.
  • Individually manufactured plates to required dimensions.
  • Excellent durability and resistance to corrosion.
  • Lightweight.
  • Tapered ends to minimise peel stresses.
  • Single adhesive substrate/plate bond line.
  • Minimum disruption to service environment.
  • Fast and economical - no heavy handling and installation equipment.
  • Low aesthetic impact.
  • Non-corrosive.
  • Ultra High Modulus. 
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Product Data Sheet Show all documents

Usage

To strengthen structures for:
  • Load increase.
  • Increasing the capacity of floor slabs and beams.
  • Increasing the capacity of bridges to accommodate increase axle loads.
  • Deterioration of original construction materials.
  • Service improvements.
  • Reduced deflection.
  • Stress reduction in steel.
  • Reduced fatigue.
  • Change in structural system.
  • Removal of walls or columns.
  • Change of specification.
 

Advantages

  • Excellent durability.
  • Lightweight.
  • Low overall thickness; can be coated.
  • Easy transportation.
  • Outstanding fatigue resistance.
  • Minimal preparation of plate.
  • Combinations of high strength and modulus of elasticity available.
  • High alkali resistance.
  • Clean edges without exposed fibres.
  • Particularly suited to strengthening metallic structures.
  • Individually manufactured plates to required dimensions.
  • Excellent durability and resistance to corrosion.
  • Lightweight.
  • Tapered ends to minimise peel stresses.
  • Single adhesive substrate/plate bond line.
  • Minimum disruption to service environment.
  • Fast and economical - no heavy handling and installation equipment.
  • Low aesthetic impact.
  • Non-corrosive.
  • Ultra High Modulus. 

Packaging

Manufactured individually on a project basis.

Colour

Carbon fibre reinforced polymer with an epoxy matrix, black.

Product Details

Product Information

Fibre Volume Content

>55%

Shelf Life

Unlimited, provided the storage conditions are met.

Storage Conditions

Store in original, unopened, sealed and undamaged packaging in dry conditions at temperatures of max. +50 °C. Protect from direct sunlight.

Dimensions

Manufactured individually on a project basis.
Technical Information

Laminate Tensile Strength

~1110 MPa (mean)

Laminate Tensile Modulus of Elasticity

~360,000 MPa (mean)

Laminate Elongation at Break

0.3%

Application

Application steps

SUBSTRATE PREPARATION

Metallic Surface

  • The metallic surface shall be grit blasted to ISO 8501-1 grade SA 2.5 using a hard angular grit, free from grease, oil, rust and any other contaminants which could reduce or prevent adhesion, to give a blast surface (peak to trough) amplitude between 50 and 100 microns. A maximum variation in level of +/- 3 mm over a distance of 300 mm in any direction should be achieved.
  • Following grit blasting all dust shall be removed from the surface.
  • In the event that bonding of the plate is to take place more than 4 hours after exposure of the bare substrate. A corrosion protection primer of SikaCor®-EG1 at a dry film thickness of 50-75 microns should be applied and cured for a minimum of 12 hours at 15°C.
  • The bonding surface of the plate is protected with a disposable peel ply layer. The peel ply should be fully removed immediately before the bonding operation starts. The layer is easiest to remove as a continuous strip.
  • The metallic surfaces must be cleaned and degreased using Sika® Thinner C by lightly brushing with a stiff brush prior to the application of SikaCor®-EG1 and SikaDur-®30 structural epoxy adhesive. Refer to separate Product Data Sheets.

+10°C

+20°C

+30°C

1) Maximum waiting time between
- Blast cleaning of steel and
- Primer / or Sikadur® -30
(application without priming possible, if no corrosion protection is needed)

48 hours

48 hours

48 hours

2) Minimum waiting time between
- Primer and
- Sikadur®-30 application
(without additional preparation of the Primer)

48 hours

24 hours

12 hours

3) Maximum waiting time between
- Primer and
- Sikadur®-30 application
(without additional preparation of the Primer)		7 days3 days36 hours
4) Waiting time between
- Primer and
- Sikadur®-30 application
(with additional preparation of the Primer)*		>7 days>3 days>36 hours

*If additional preparation of the Primer is necessary (4), it shall be done the day before application. After preparation of the Primer, the surface has to be cleaned/vacuumed free from dust.

 

CFRP Plate Surface
Immediately prior to the application of Sikadur®-30, solvent wipe the bonding surface with Thinner C to remove any contaminants. Wait until the surface is dry before applying the adhesive.

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