|Packaging||50 lb units|
|Yield||0.55 cu. ft. per 50 lb unit|
|Mixing Ratio||One 50 lb. unit to 1 gal. water (max) or approx. 1 gal latex additive|
|Density (Wet Mix)||106 lbs./cu. ft. (1.70 kg/l)|
|Application Time (@ 73°F, 23°C, and 50% R.H)||Approx. 20-30 minutes|
|Finishing Time (@ 73°F, 23°C, and 50% R.H)||30-40 minutes|
|Time Between Lifts (@ 73°F, 23°C, and 50% R.H)||Less than 1 hour|
|Compressive Strength (ASTM C-109) @ 1 day||2,000 psi (13.8MPa) or 2,500 psi (17.2MPa) with latex|
|Compressive Strength (ASTM C-109) @ 7 days||3,000 psi (20.7MPa) or 3,500 psi (24.1MPa) with latex|
|Compressive Strength (ASTM C-109) @ 28 days||4,500 psi (31.0MPa) or 5,000 psi (34.5MPa) with latex|
|Flexural Strength (ASTM C-293) @ 28 days||800 psi (5.5MPa) or 1,100 psi (9.7MPa) with latex|
|Bond Strength (ASTM C-882 modified) @ 28 days||1,000 psi (6.8MPa) or 1,800 psi (12.4MPa) with latex|
|Flash Point||>200°F (93°C)|
|Application Temperature Range||Store dry at 40°F-90°F (4°C-35°C). Condition material to 65°F-75°F (18°C-24°C) before using.|
|Conditions To Avoid||None known|
|Incompatible Materials||None known|
|Hazardous Decomposition Products||None known|
|Extinguishing Media||Water spray (fog) foam, dry chemical, CO2|
|Fire And Explosion Hazards||None Known|
|Shelf Life||1 year in original, unopened packaging|
Concrete, mortar, and masonry products.
Concrete/Mortar: Remove all deteriorated concrete, dirt, oil, grease, and all bond-inhibiting materials from surface. Preparation work should be done by high pressure water blast, scabbler or other appropriate mechanical means to obtain an exposed aggregate surface profile of ±1/16-in. (CSP-5). After preparation, substrate strength should be verified prior to patch placement. Substrate should be saturated surface dry (SSD) with no standing water during application.
Reinforcing Steel: Steel reinforcement should be thoroughly prepared by mechanical cleaning to remove all traces of rust. Where corrosion has occurred due to the presence of chlorides, the steel should be high pressure washed with clean water after mechanical cleaning. Prime.
Concrete Substrate: Prime the prepared substrate with a brush applied coat. Alternately, a scrub coat of can be applied prior to placement of the mortar. The repair mortar has to be applied into the wet scrub coat before it dries.
Mixing for 50 lb. Unit
With water: Pour ¾ of one gallon of water into the mixing container. Add powder while mixing continuously. Mix mechanically with a low-speed drill (400-600 rpm) and mixing paddle or in an appropriate mortar mixer. Add more water to obtain desired consistency of the mortar. Do not exceed one gallon per bag. Mix to uniform consistency, maximum 3 minutes. Manual mixing can be tolerated only for less than a full unit. Thorough mixing and proper proportioning is necessary.
With latex: For polymer modification, a latex additive may be used. Pour 4/5 of 1 gallon of latex additive into the mixing container. Slowly add powder while continuing to mix mechanically as above. Adjust latex additive to obtain the desired consistency. Do not add more than one gallon per bag.
Application & Finish
The mixed FiberCrete Repair SHA must be worked well into the primed substrate, filling all pores and voids. Compact well. Force material against edge of repair working towards the center. Thoroughly compact the mortar around exposed reinforcement. After filling repair, consolidate, then screed. Finish with steel, wood, plastic floats, or damp sponges, depending on the desired surface texture. Where multiple lifts are required, score top surface on each lift to produce a roughened substrate for next lift. Allow preceding lift to harden before applying fresh material. Saturate surface of the lift with clean water. If previous layers are over 48 hours old, mechanically prepare the substrate and dampen.
As per ACI recommendations for Portland cement concrete, curing is required. Moist cure with wet burlap and polyethylene, a fine mist of water or a water based* compatible curing compound. Curing compounds adversely affect the adhesion of following lifts of mortar, leveling mortar or protective coatings. Moist curing should commence immediately after finishing. Protect freshly applied mortar from direct sunlight, wind, rain and frost.* Pre-testing of curing compound is recommended.
Skin / Eye / Respiratory Irritant. Avoid breathing dust. Dust may cause respiratory tract irritation. May cause delayed lung injury (silicosis).
Warning: This product contains crystalline silica, which in the state of California, is known to cause cancer.
Eyes: Rinse thoroughly with water a minimum of 15 minutes. Consult a physician.
Skin: Wash thoroughly with soap and water. Remove contaminated clothing.
Inhalation: Remove person to fresh air. Consult a physician.
Ingestion: Dilute with water. Consult a physician. In all cases, if symptoms persist contact a physician.
Handling and Storage
Avoid contact. Wear suitable personal protective equipment (chemical resistant goggles / gloves / clothing). Remove contaminated clothing and launder before reuse. Use in the presence of adequate ventilation. In the absence of adequate ventilation, wear a properly fitted NIOSH respirator. Uncured material can be removed with water. Cured material can only be removed mechanically. Store in a cool, dry area. Keep bag tightly closed.
In case of spill, wear protective equipment (chemical resistant gloves / goggles / clothing). Ventilate area. In the absence of adequate ventilation, use a properly fitted NIOSH respirator. Confine spill. Vacuum or scoop into an appropriate container. Dispose of in accordance with current applicable local, state and federal regulations. In case of emergency, call CHEMTREC at 1-800-424-9300. 703-527-3887 (outside USA & Canada).