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Crack Injection - Technical Data Sheet

Application Instructions | Cleanup | Description | Mechanical Properties
Packaging | Physical Properties | Statement of Responsibility | Storage Directions
Surface Preparation | Typical Applications

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Technical Data Sheet Crack Injection Epoxy AH

Description

Crack Injection Epoxy AH is part of Svenic Australia's range of structural adhesives and grouts for use in the construction industry. Crack Injection Epoxy AH is a two-component epoxy resin compound suitable for the repair of cracked concrete by pressure injection or gravity penetration. It combines ease of mixing and application. Crack Injection Epoxy AH is low viscosity, possesses superior tensile and compressive properties to concrete, coupled with good flexibility and exhibits good moisture tolerance during cure.

Typical Applications

Crack Injection Epoxy AH may be used in the following typical applications:

• Repair of cracked columns and slabs.

• Consolidation of porous floors.

• Repair of mill and crusher foundations.

• Bonding together cracked cladding.

• Impregnation of porous concrete, masonry and rock.

Physical Properties

Mechanical Properties

Surface Preparation

Adequate surface preparation is essential for the achievement of maximum bond strengths. Surface of cracks should be cleared to remove all direct and loose or foreign material. If damp, flame dry and remove any fine dust from cracks with clean compressed air.
Mixing Directions
Insert twin cartridge kit of epoxy resin compound into either manual or air operated bi-mixer. Remove "D" plugs from each cartridge. Attach static mixer with hose to twin cartridge kit using a retaining nut. Begin dispensing material through the static mixer with hose, whilst holding the twin cartridge kit upright. This will exhaust any air in the cartridges. Allow at least the first 20 ml of material to flow from the end of the hose. Ensure both plungers at the bottom of the cartridges are level and that extruded material is of a homogenous, mixed colour.

Application Instructions

To operate the Twin Cartridge System for Crack Injection and using the Svenic Face Fixed Flange
(Item No. 419SAE): -

1. Affix the Flanges to the substrate using the Svenic Structural Epoxy Adhesive Paste TP(surface sealing paste). Ensure the surface sealing paste, extends through the holes, as well as 3-5 mm around the circumference, of the base of the Flange. Take care not to block the flange with adhesive. Allow the surface sealing paste to cure overnight. Flanges should be set approximately 3 - 5 units per metre.
2. Seal the top of the crack between the Flanges with the surface sealing paste.
3. Ensure all Flanges are in the open position. This will allow epoxy resin compound to flow from the Flange below to the one above. To open the Flanges, push the stem of the Flange down, towards the base.
4. Connect the Static Mixer with Hose (62532HOSE), to the Twin Cartridges filled with epoxy resin compound, using the Retaining Nut.
5. One end of the Adaptor (427SAE) is connected to the hose, whilst the other end of the Adaptor, is pushed onto the stem of the Flange. This opens the Flange, so that epoxy resin compound will pass through the Flange into the crack.
6. The crack is injected with epoxy resin compound. Once epoxy resin compound appears from the Flange adjacent to or above, either the Hose OR Adaptor, is pulled back, away from the base of the Flange. This locks the Flange and stems the flow of epoxy resin compound.
7. Use the Adaptor Removing Tool (032SAE) to disconnect the Adaptor from the stem of the Flange. Wedge the Tool between the base of the Flange and the Adaptor at right angles. Simply pull back with the Tool on to the Adaptor, and away from the base of the Flange. This will release the Adaptor from the Flange.
8. Repeat the injection procedure outlined at (4) to (7) above with the next flange from which epoxy resin compound appeared. Previously injected flanges should be re-injected within 15 minutes using the same process. This will ensure better penetration of the crack.
9. Grind off the Flanges and Surface Sealing Paste. Make good the substrate.
10. Either a Manual or Air Gun is available to dispense the Twin Cartridges System.

Crack Injection Epoxy AH should not be used below 10ºC as the cure will be seriously retarded. At temperatures of 30ºC and above, some cooling may be necessary to prolong pot life. Particularly in the case of very fine cracks.

Packaging

Crack Injection Epoxy AH is supplied in convenient twin cartridge kits in the correct mixing proportion as follows:

Clean Up

Remove excess adhesive immediately after application and clean tools with toluene, xylene or methyl ethyl ketone (MEK).

Storage Directions

Storage Life: 12 months from date of manufacture.

Keep cartridges closed tightly when not in use.

Do not interchange "D" plugs or in other way contaminate "A" Components with "B" or vice versa. Do not store in conditions of excessive heat or cold.
Handling Instructions
Refer to the material safety data sheet (MSDS) before handling the product. Follow instructions for safe handling.

Avoid direct skin contact. Gloves and overalls should be worn. Should direct contact occur, wash affected areas thoroughly with soap and water. Do not use solvents to remove product from skin.

Respirators should be worn in confined areas or in the case of prolonged exposure to vapours. Contaminated clothing should be laundered as soon as possible.

Statement of Responsibility

The information given in this publication is based on the present state of our knowledge. Buyers and users must make their own assessment of our product under their own conditions for their own requirements.

No responsibility is accepted save those non-excludable conditions stated or implied by any Federal or State Legislation or law of a territory.

CONTACT POINT

Peter Coundouris General Manager Svenic Australia (Contact Information below)

OTHER CONTACT

Poisons Information Centre 13 11 26