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SpecChem SpecRock

SpecChem SpecRock

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Contractor Overview

SpecRock is a form release, bond breaker, or evaporation control product. Pourable, cement-based, non-shrinking, quick-setting anchoring cement SpecRock is a high-performance, one-component, waterproof, non-shrink, Portland cement-based anchoring cement. It sets hard within 12-15 minutes and exhibits controlled expansion, effectively locking into surrounding concrete.

Best For

  • Concrete forms and form liners
  • Tilt-up construction
  • Fresh concrete finishing conditions

Key Features

  • Non-shrinking, quick-setting anchoring cement SpecRock is a high-performance, one-component, waterproof, non-shrink, Portland cement-based anchoring cement
  • One-component, waterproof, non-shrink, Portland cement-based anchoring cement
  • SpecChem product chemistry
  • Built for professional concrete jobsite workflows

Material & Application Notes

Pourable, cement-based, non-shrinking, quick-setting anchoring cement SpecRock is a high-performance, one-component, waterproof, non-shrink, Portland cement-based anchoring cement. SpecRock ES (Extended Set) offers a longer set time of 60-75 minutes, ideal for hot weather conditions above 90°F, providing more flexibility during application. Durability: Waterproof and resistant to freeze/thaw cycles, ensuring longevity in direct water exposure environments.

Why Contractors Choose It

Contractors choose SpecRock to improve release, reduce cleanup, protect formwork, and keep concrete placement moving.

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Application

SpecRockis recommended for securely anchoring:

  • Bolts, reinforcing rods, and columns.
  • Railings, fences, and small machines.
  • Handrails, bridge railings, and posts.
  • Signs, pulleys, and motors.

Surface Preparation

  • Drill holes into sound concrete to accommodate the anchor or bolt, typically three times wider than the embedded object.
  • Ensure holes allow for easy material flow around the object.
  • Optionally, “mushroom” the base of the hole to increase anchorage by tilting the drill during operation.
  • Clean out holes thoroughly, removing all dust and debris, and dampen, but do not saturate, the walls.

Mixing and Placement

  • Mix only the amount that can be used within 8 minutes to a pancake batter consistency using clean water (approximately 16.7% by weight).
  • Pour the mixed grout continuously to avoid air pockets, ensuring full and comprehensive contact with the base plate.
  • The recommended minimum placement thickness is 1 inch, with a maximum of 18 inches per lift.

Mixing Instructions

  • Prepare by adding water to achieve the desired consistency; avoid over-watering to maintain strength and integrity.
  • For high-flow applications, reduce the amount of aggregate up to 25% by weight for easier placement.

Packaging

Available in 50 lb pails or bags.

Shelf Life

Shelf life of 18 months when stored properly in a cool, dry area between 45°F and 90°F.

Test Data

  • Compressive Strength:1 Hour: 2000 psi1 Day: 5000 psi28 Days: 8000 psi
  • Flexural Strength:1250 psi at 28 days
  • Pull-Out Strength:Up to 19,300 lbs depending on anchor and depth