Installation Dos and Don'ts for Great Stamped Concrete
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Hi ,
 The beautiful surface effects possible with decorative stamped concrete are just part of the total package.You'll also be getting one of the most durable paving materials money can buy -- if the concrete is installed properly. Long-lasting stamped concrete starts with the basics: the right tools,
good materials, an experienced installer and ideal jobsite conditions. Here
are five important dos and don'ts to discuss with your contractor before the
work begins.
Jim Peterson, The Concrete Network
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| 1. Don't overlook subgrade preparation. |
A
well-compacted subgrade is essential to the structural integrity of the concrete
slab. It also helps drainage and can prevent soil erosion under the
concrete. Read more about subgrades for concrete slabs. |
2. Do install joints to control cracking.
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 To be effective, joints must be cut to a depth of at
least one-quarter the slab thickness. If you're worried that the joints will detract from
the appearance of the stamped surface, ask your contractor to hide the joints by
integrating them into the pattern lines wherever possible. Learn more about the purpose of joints in concrete slabs. |
| 3. Do insist on the right concrete mix for exposure conditions. |
Will your stamped concrete be exposed to freezing and thawing, deicing chemicals and a lot of wear and tear from foot or vehicle
traffic? Then you'll need a concrete mix designed for high performance. In particular, pay special attention to the water-cement ratio, or the amount of water
in proportion to the cement. Adding too much water weakens the concrete and makes it less durable. |
| 4. Do use a dry-shake color hardener. |
 This "magic" powder, which is sprinkled onto the concrete surface before stamping, not only adds color, but will also produce a
denser, more impermeable surface.
Read more about the benefits of dry-shake color. |
| 5. Don't skimp on reinforcement. |
For many slabs on grade, concrete reinforcement (in the form of steel bars or welded wire mesh) is necessary to
augment strength and help to control cracking. This is especially true for
driveways and other surfaces that will support vehicle traffic. |