SpecRock
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.
Application
SpecRock is 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: Reaches 2000 psi in 1 hour, 5000 psi in 1 day, and 8000 psi in 28 days.
- Flexural Strength: 1250 psi at 28 days.
- Pull-Out Strength: Up to 19,300 lbs depending on anchor and depth.