SpecRock
Pourable, cement-based, non-shrinking, quick-setting anchoring cement
SpecRock is a one-component, waterproof, non-shrink, Portland cement-based anchoring cement that sets hard in 12-15 minutes. It expands as it sets and locks into the surrounding concrete.
SpecRock ES (extended set time) 60-75 minutes, allows the contractor more time for placement in hot weather applications conditions +90°F .
- Quick setting; sets hard in 12-15 minutes; speeds production
- Rapid high strength up to 2000 psi. in 1 hour at 72o
- Controlled expansion as it sets
- Nonmetallic; maintains volume stability over time
- Waterproof, resistant to freeze/thaw provides durable, long-lasting applications
- Flowable, and pourable mixture; user friendly application
- Approved for exterior use and direct water exposure
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.