ISR AG is a durable, crack resistant repair material utilizing ISR (Internal Stress Relief) technology with ECB- Tech corrosion protection, used in repairs over 2″ deep such as parking decks, balconies, and plaza decks. It can be troweled into place or as a form and pour/pump material.
Where to use:
Parking and plaza decks, balconies, and marine structures.How to apply:
Pour, pump, or hand patch. Additional InformationMinimize InformationPerformance Characteristics
- Pumpable sustainable green technology Contains significant concentrations of both pre-and post-consumer recycled content.
- Low shrinkage Maintains integrity of repair, resists cracking.
- Thermal compatibility Prevents delamination due to temperature change.
- ECB-Tech corrosion protection Protects reinforcing steel in repair zone and suppresses ring anode effect.
- Durable Resistant to weathering action, excellent freeze/thaw stability and abrasion resistance.
- Low permeability Resistant to deicing salts, carbonation, chloride, and chemical attack.
- Dimensionally stable Ideal for large areas.
- Abrasion resistant Hard, durable surface for long term wear.
Surface Preparation
- Remove loose and deteriorated material, laitance, dirt, dust, oil and any surface contaminants that will inhibit proper bond.
- Saw cut edges with a diamond blade at a 90° angle to eliminate feather edging. Avoid polishing the edges as this will inhibit bond.
- Avoid bruising or micro cracking during surface preparation. Refer to ICRI Surface Preparation Guide 03732.
- Repair zone must be a minimum of 3/4 inch deep, of simple geometry, with no complex edge conditions.
- Avoid long narrow repairs; these have a tendency to crack.
- Saturate substrate with clean water, (saturated surface dry/SSD), with no standing water during Application.
- Remove concrete from corroded steel and several inches beyond to expose non-corroded steel.
- Provide a 3/4-inch clearance between the concrete and steel.
- Damaged reinforcing steel should be inspected by a qualified engineer an appropriate action taken.
Mixing
- Mechanically mix using a mortar mixer.
- Pour 3 quarts of potable water into a clean mixing vessel and slowly add all of the powder.
- Mix continuously for 3 minutes to a uniform, lump-free consistency.
- For trowel applications, do not exceed 3 quarts of water per bag. Proper mix ratio is 6 parts powder to 1 part water.
- Add additional water to increase slump and flowability for form and pour applications. Do not exceed 3.75 quarts of water per 60 lbs. of material. Proper mix ratio is 5 parts powder to 1 part water.
- 3.75 quarts of water will produce an 8-inch slump.
- Allow to “breathe” for 1 minute.
- Do not overmix, this will entrain excess air.
Application
- At the time of application, surfaces should be saturated surface dry (SSD) but hold no standing water.
- Form applications must be consolidated with vibrator.
- Place material continuously to break points.
- Finish with a magnesium float or trowel.
- Avoid overworking material during placement and finishing – this will produce surface (map) cracking.
Curing
- Dampen the repair with a fine mist of water for 24 hours or moist cure with wet burlap and polyethylene.
- Protect repair from direct sunlight, wind, rain and frost during curing period.
Clean Up
- Clean tools and equipment with water immediately after use.
- Cured material must be removed mechanically.
Coverage/Yield
- 0.49 ft³/60 lb. bag
Product Handling
- Packaging 60 lb. paper bag.
- Shelf Life 12 months when properly stored.
- Storage Transport and store in cool, clean, dry conditions in unopened containers. High temperature or high humidity will reduce shelf life.
Limitations
- Do not apply unless substrate and ambient temperature can be maintained at a minimum of 40°F for 24 hours. Refer to ACI Cold Weather Application Guidelines.
- Cold mixing water and low temperature will retard set. Hot water and high temperature will accelerate set.
- Protect application from precipitation and high wind for at least 8 hours.
- Do not add more water than specified, this will lower strengths and cause shrinkage cracking.
- Avoid overworking material during placement and finishing – this will produce surface (map) cracking.
Health and Safety
- Product is alkaline.
- Do not ingest.
- Avoid breathing dust.
- Avoid contact with skin and eyes.
- Refer to Safety Data Sheet (SDS) for additional information.
First Aid
- If swallowed, contact a medical professional immediately. Do not induce vomiting unless directed to do so by a qualified medical professional.
- In case of skin contact, wash thoroughly with soap and water.
- In case of eye contact, flush with a high volume of water for at least 15 minutes.
- For respiratory problems, remove person to fresh air. If difficulty persists, contact a medical professional.
Disposal
- Dispose of material in accordance with local, state and federal regulations.