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SpecChem SpecRock

SpecChem SpecRock

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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. 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.

  • Quick Setting: Hardens in 12-15 minutes, accelerating production.
  • High Strength: Achieves up to 2000 psi within one hour at 72°F.
  • Controlled Expansion: Expands during setting for superior locking.
  • Durability: Waterproof and resistant to freeze/thaw cycles, ensuring longevity in direct water exposure environments.
  • Versatile Application: Flowable and pourable consistency makes it user-friendly for various outdoor applications.
  • Extended Work Time: SpecRock ES variant is designed for longer working times in high temperatures.
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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