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Anti-CRAK HP Dry-Use Chopped Strand | Owens Corning Composites

SUPERIOR FINISH AND MORE TOUGHNESS

Anti-CRAK® HP is designed to provide high performance crack control and toughness to commercial and residential slabs, garage floors, and other concrete applications.

Specifications and Literature

Anti-CRAK HP Product Data Sheet
Anti-CRAK HP Product Data Sheet

Product data sheet for Anti-CRAK HP

| 5.5 MB

Performance Attributes

CRACK CONTROL Icon

CRACK CONTROL

TOUGHER Icon

TOUGHER

FASTER WORK Icon

FASTER WORK

  • APPLICATIONS

    Anti-CRAK® HP is designed to provide enhanced crack control and toughness to commercial and residential slabs, and garage floors. Additionally, Anti-CRAK® HP is also broadly used in manufactured concrete products, dry mix formulations, stucco, render, UHPC, and other concrete applications.

CRACK CONTROL

• Plastic shrinkage crack control




• High modulus fiber giving crack control in hardened concrete

TOUGHER

• Superior finishability




• Neutral buoyancy and uniform dispersion




• No rust, no staining




• Multi-filament strand mineral fiber with natural affinity to cementitious materials

FASTER WORK

• Replaces the time consuming installation of welded wire mesh




• Ready to add to the concrete, either in the mixer or at the jobsite




• Fast dispersion during mixing




• Low impact on workability




• Easy and trouble-free pumping




• Flows and dispenses easily for automated dosing

Technical Information

Technical Characteristics

FIBER LENGTH ASPECT RATIO (LENGTH/DIAMETER) EQUIVALENT DIAMETER MODULUS OF ELASTICITY3 TENSILE STRENGTH2
12 – 18 – 24 mm
1/2 – 3/4 – 1 inches		 58 – 85 – 55 0.20 - 0.50 mm 72 GPa
10 x 106 psi		 >1,000 MPa
>145 x 103 psi

• Electrical Conductivity: very low
• Chemical Resistance: very high
• Specific Gravity: 2.68 g/cm3
• Loss on Ignition (ISO 1887): 0.80-2.00%
• Material: 1Alkali Resistant Glass
• Moisture (ISO 3344): 0.50% max
• Softening Point: 860°C / 1580°F

1 In compliance with ASTM C1666 and EN 15422, and under the recommendations of PCI and GRCA.
2 Tested by ASTM D 2343.

How to Use

It is recommended to add Anti-CRAK® HP into wet concrete during the last stage of mixing, or directly into a ready mix concrete truck on the jobsite. For dry mix applications, fibers can be added in the dry premix.


The recommended dosages are:

PLASTIC SHRINKAGE THERMAL AND SHRINKAGE CRACKING
FIBER TYPE Micro Micro Macro
FIBER REFERENCE HP12 - HP18 HP12 - HP18 HP24
ADDITION RATE kg/m3
0.6 - 1.2		 lbs/yd3
1.0 - 2.0		 kg/m3
1.2 - 5		 lbs/yd3
2.0 - 8.4		 kg/m3
1 - 5+		 lbs/yd3
1.6 - 8+
BENEFIT Early age cracking mitigation Anti-cracking mesh replacement Anti-cracking mesh replacement
PRIMARY APPLICATION Concrete flatwork - flooring Concrete flatwork - flooring Residential floor, light, commercial floors

Packaging & Storage

Anti-CRAK® HP 12: Packed in 600g and 1lb paper bags (water dispersible), and plastic bags (6 kg)
Anti-CRAK® HP 18: Packed in 7 kg plastic bags
Anti-CRAK® HP 24: Packed in 5 kg plastic bags

Anti-CRAK® HP should be stored away from heat and moisture, and must stay in its original packaging. Optimum conditions are temperature between 15°C and 35°C (59ºF to 95ºF) and humidity between 35% and 65%. If the product is stored at lower temperatures, it is advisable to condition it in the workshop for at least 24 hours before use, to prevent condensation.

Quality Standards

Anti-CRAK® HP is manufactured under a quality management system approved to ISO 9001.

Anti-CRAK® HP is not classified as dangerous by the Regulation 1272/2008/EC. For more information, please refer to our Safe Use Instruction Sheet.

CE-marking and Declaration of Performance (https://www.owenscorning.com/en-us/composites/declaration-of-performance) as fibers for use in concrete and mortar through European Technical Assessment.

Verified Environmental Product Declaration according to ISO 14025 and EN 15804:2019 available upon request.

    Regional Availability

    Anti-CRAK® HP is available worldwide.

    Applications

    • Buildings and Construction > Concrete > Fiber Reinforcement
    • Buildings and Construction > Exterior > Walls > Renders

    Get in Touch

    Reach out to our team of experts. We're ready to answer your questions on product specifications, technical requirements, and beyond.

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