Sub-grade Preparation:
The sub-grade on which PaveCrete is to be installed should be well drained and have adequate and uniform load-bearing characteristics. To reduce cracking, it should be graded so that the thickness of the concrete will be uniform. At the time of concreting, it must be moist, completely consolidated, and free of dirt or frost.
Protection:
Care must be taken not to contaminate surrounding areas with "Toss on Color". It may be difficult or impossible to remove from finished surfaces.
Forming:
Forms surrounding each pour must be installed according to agreed upon joint layout and slopes draining the water away from entrances.
Steel reinforcement: 6 mm steel reinforcement should be placed at 25 cm on center where necessary.
Concrete Mix Design and placing:
The concrete should have a minimum of 10 cm in thickness if placed on natural grade. For concrete topping on top of existing concrete, thickness should be a minimum of 50 mm. The concrete mix should contain a minimum of 6 sacks (300 kgs.) of cement per cubic meter of concrete. All fine and coarse aggregates must be clean and non reactive. The water content should be the minimum amount practical, and the slump should not exceed 100 mm. A normal or retarded set, water reducing admixture may be used. The concrete mix must not contain any admixture or additive that contains calcium chloride. During cold-weather concreting, a non chloride accelerator may be used. No high range water reducing admixtures (superplasticizers) should be added. Placing and finishing of the concrete should be as per standard practice and ACI recommendations.
Color Hardener:
Is spread using the dry shake method. A Minimum of 2.5-3 kg/m2 is recommended. Light colors (ex. Beige) might require more quantities. When no excess "bleed water" is visible on the surface apply 70% of the TopCrete CH200 Color Hardener and float on the concrete. The balance of 30% should be applied with a second application and it should be floated and trowelled.
Control Joints: Joints could be PVC, aluminum, Stainless steel or colored grouted. Saw cuts using the proper concrete saws shall be performed according to ACI recommendations and at pre-determined distances.
Washing & Sealing: The PaveCrete surfaces must be washed with clean water prior to application of TopSeal clear acrylic sealer to protect the surface against dusting, UV deterioration and to make cleaning and maintenance easier. A final sacrificial coat of floor wax is recommended.
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