Use and Care Guide
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The Pro’s Choice Since 1936
Concrete Countertop Mix
Preparation/Application:
For best results all materials should be stored between 40°F (4°C) and 80°F
(27°C) 24 hours prior to installation.
Refer to:
- ACI 302.1 Guide for Concrete Flooring and Slab Construction
- ACI 304.1 Guide for Measuring, Mixing, Transportation and Placing Concrete
1. Forms must be coated with a release agent prior to beginning.
2. Forms made from melamine coated boards are easiest to strip.
3. Forms should be constructed and properly supported in a manner that they
can remain stable and undisturbed during and after filling with the Sakrete
Countertop Concrete Mix. Concrete mix weighs up to 145 lbs (66 kg) per
cubic foot.
4. Depending on the size of the countertop, it may be necessary to imbed wire
mesh or other reinforcement in the concrete.
5. Assure forms are clean and free of any dust, dirt and foreign materials prior
to the start of the pour.
Refer to:
- ACI 305R Guide to Hot Weather Concreting
- ACI 306R Guide to Cold Weather Concreting
Mixing:
1. The use of a mechanical mixer is recommended.
2. Mix only the amount of material that can be placed in 30 minutes.
3. If pigment is used, add the pigment to the water first. Then add the dry
concrete and mix.
4. Mix full bag of material with up to 4 qts (3.8 L) of clean potable water. Add
3 qts (2.8 L) of water initially. Then add the remainder as needed.
5. Mix for 2 - 3 minutes, allow mix to sit for a minute and then remix for several
more minutes.
6. Excess water reduces strength and durability and can cause cracking,
dusting or scaling a 5 - 7” (127 - 178 mm) slump should be achieved.
Placement:
1. Pour the Sakrete Concrete Countertop Mix into the form filling to full depth
and taking care to assure all corners are filled full.
2. Evenly disperse material using a float.
3. Lightly vibrate the form using a vibrator or by tapping the sides of the forms
to eliminate any voids.
4. Screed the surface of the concrete using a clean, straight-edged 2” x 4”
(51 - 103 mm) pulled in a slow sawing motion across the top of the mold
edges.
5. Use a float over the surface to remove any ridges and fill any voids.
Finishing:
1. The process used for finishing depends upon the desired result. The counter
top can be mechanically polished, stained and sealed.
2. Countertops used in kitchens or in areas where food will be present should
be sealed with sealers that are specifically designed and FDA approved for
that purpose.
Sakrete
®
Concrete Counter Top Mix
Contains uniformly blended aggre-
gates, Portland cement and special
additives to produce a flowable mix
with high compressive strength and
low shrinkage.
Features:
• High Strength 6,000 psi
• Exceeds 2,000 psi in 24 hours
• Full depth applications 2” (51 mm) or greater
• Can be polished
• Can be colored with Sakrete Cement Colors
• Ideal for structural applications requiring a small volume of concrete
Use For:
• Indoor and Outdoor CounterTops
• TableTops
• Patio slabs
• Driveways
Yield/Water/Coverage:
To determine coverage: Multiply Length (feet) x Width (feet) x Thickness (inches)
and divide by 12. Then divide by the yield in the chart above to determine the
numbers of bags needed. See Calculator on Sakrete.com for additional
assistance. Yield and water are approximate.
Technical Data:
Sakrete Concrete CounterTop Mix meets or exceeds the compressive strength
requirements of ASTM C387 when mixed according to specification.
Compressive Strength ASTM C39
24 hours = 2,000 psi (13.8 MPa)
28 days = 6,000 psi (14.4 MPa)
Slump Range = 5” - 7” (127 - 178 mm)
DIVISION 3
Structural Concrete – 03 31 00
Color:
Gray
Bag Size Yield Water
80 lb (36.3 kg) 0.6 ft
3
(.016 m
3
) 4 qt (3.8 L)