Rods - Sika® CarboDur® Rods

Carbon fiber rods for structural strengthening

Sika® CarboDur® Rods are pultruded carbon fiber reinforced polymer (CFRP) rods designed for strengthening concrete, timber and masonry structures. The rods are primarily installed using the Near Surface Mounted (NSM) technique by inserting into grooves cut into the substrate and bonded with an epoxy resin. The rods can also be used for anchoring SikaWrap fabrics for positive attachment to concrete or masonry.

• Very high strength
• Lightweight
• Non-corrosive
• Very easy to handle
• High modulus of elasticity
• Can accept traffic on surface (rods are countersunk)
• High bond strength due to full encapsulation
• Rods are not visible once installed
• Outstanding fatigue resistance
• Alkali resistant

Usage

• Negative moment reinforcing in slabs and decks
• Anchoring of SikaWrap fabrics
• Strengthening of masonry walls
• Doweling applications
• Cathodic protection applications

Load increases

• Increased live loads in warehouses
• Increased loading in parking decks
• Installation of heavy machinery
• Vibrating structures
• Changes of building utilization

Damage to structural parts

• Aging of construction materials
• Steel reinforcement corrosion
• Vehicle impact
• Fire

Serviceability improvements

• Decrease in deformation
• Stress reduction in steel reinforcement
• Crack width reduction

Change in structural system

• Removal of walls or columns.
• Removal of slab sections for openings

Design or construction defects

• Insufficient reinforcements
• Insufficient structural depth

Advantages

• Very high strength
• Lightweight
• Non-corrosive
• Very easy to handle
• High modulus of elasticity
• Can accept traffic on surface (rods are countersunk)
• High bond strength due to full encapsulation
• Rods are not visible once installed
• Outstanding fatigue resistance
• Alkali resistant

Packaging

Custom cut lengths available

Color

Black

Product Details

Product Information

Shelf Life

Unlimited (no exposure to direct sunlight)

Storage Conditions

Store in original, unopened, sealed and undamaged packaging in dry conditions at temperatures of max. 122 °F (+50 °C). Protect from direct sunlight. Transportation: only in the original packaging, or otherwise adequately protected against any mechanical damage

Fiber Volume Content

65 %

Technical Information

Tensile Strength

4.06 x 10⁵ psi (2,800 MPa)

Tensile Modulus

22.5 x 10⁶ psi (155,000 MPa)

Tensile % Elongation

1.8 %

Thermal Resistance

>300 °F (>150 °C)

Application

Consumption

Coverage

Coverage of Sikadur 30 or Sikadur 32, Hi-Mod epoxy resin with Sika CarboDur Rods: 1/4 in. diameter approx. 85 LF/gal. (1/2 x 1/2 in. slots); 3/8 in. diameter: approx. 60 LF/gal. (5/8 x 5/8 in. slots); 1/2 in. diameter: approx. 35 LF/gal. (3/4 x 3/4 in. slots)

Application Steps

SUBSTRATE PREPARATION

For Near Surface Mounted Applications, cut a groove into the concrete or masonry surface using an appropriate concrete saw or diamond blade. Surface must be clean and sound. It may be dry or damp, but free of standing water and frost. Remove dust, laitance, grease, curing compounds, impregnations, waxes, foreign particles, disintegrated materials and other bond inhibiting materials from the surface. In addition, clean the groove with compressed air prior to installation.

Preparation Work
Concrete - Blast clean, shotblast or use other approved mechanical means to provide an open roughened texture.
Sika® CarboDur® Rods - wipe clean with appropriate cleaner (e.g. MEK).

Cutting the Rods

Rods may be cut to an appropriate length with a diamond blade on a chop saw or grinder. The rods should be wrapped with duct tape in the cutting zone to minimize splintering.

Mixing

Consult Sikadur 30 or Sikadur 32, Hi-Mod technical data sheet for information on epoxy resin.

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