Forment®

Performance Characteristics

• Maintains integrity of repair, resists cracking.

• Prevents delamination due to temperature change.

• Protects reinforcing steel in repair zone and suppresses ring anode effect.

• Resistant to weathering action, excellent freeze/thaw stability and abrasion resistance.

• Resistant to deicing salts, carbonation, chloride, and chemical attack.

• Excellent consolidation around reinforcing steel.

• Fast placement of large repairs, improves productivity.

• Consistent batching and flowability.

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.
• Apply Conpro Start where a consolidant is of benefit.
• Repair zone must be an average of 1 inch deep, square or rectangular shape.
• 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 and appropriate action taken.

Priming

• Several hours prior to placing Forment, fill the formwork with clean water. Immediately prior to placement completely drain the water and seal the ports.

• Remove all scaling rust from reinforcing steel.
• Apply ECB anti-corrosion coating.

Mixing

• Mechanically mix using a low speed drill (400-600 rpm) and mixing paddle or mortar mixer.
• Pour Forment admix into a clean mixing vessel and slowly add all of the powder.
• Mix continuously for 3 minutes to a uniform, lump-free consistency.
• Do not overmix, as this will entrain excess air.

Application

• Formwork must be tight at all joints to prevent leaks and loss of water and material.
• Pre-treat forms with a release agent.
• Locate vent holes at bottom of forms to allow pre-soaking water to drain and at top to allow air to escape during placement. Refer to ACI 347-01, Guide to Formwork for Concrete.
• Fill forms with clean water several hours prior to placement.
• Drain forms immediately prior to placement.
• Fill forms with a continuous feed. Do not interrupt filling once started, as this will create voids. Refer to ACI 304.2R-96, Placing Concrete by Pumping Methods.
• Consolidate material by tapping forms lightly with a 3 lb. hammer.
• Forment will remain fluid for approximately 30 minutes at 70°F, 50% RH.
• Strip forms after 48 hours.
• Extend material to a maximum of 30 lbs. of 3/8 inch aggregate per 50 lbs. of Forment. Aggregate must be non-reactive, low absorption, graded and high density.

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

• 0.41 ft³/50 lbs.
• 0.65 ft.³ when extended with 30 lbs. of 3/8 inch aggregate.

Product Handling

• 50 lbs. paper bags; and 1 gallon Forment admix.

• 12 months when properly stored.

• Transport and store in cool, clean, dry conditions in unopened containers.
• High temperature or high humidity will reduce shelf life.
• Protect admix from freezing.

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.
• Do not add more liquid than specified.
• Do not add water.
• Begin curing procedures as soon as forms are stripped.
• Material should not sit in mixer, pump or lines for more than 5 minutes without recycling.
• Do not use Conpro Primer as a bonding primer with Forment.

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

• In case of skin contact, wash thoroughly with soap and water.
• In case of eye contact, flush immediately with a high volume of water for at least 15 minutes and contact a medical professional.
• For respiratory problems, remove person to fresh air.

Disposal

• Dispose of material in accordance with local, state and federal regulations.