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OVERLAY, CONCRETE PAVEMENT with KOMPONENT®
SUMMARY INSTRUCTIONS:
1. Saturated, Surface Dry (SSD) concrete base
2. Minimum thickness 2”
3. Mix as described in Full Instructions below
4. Place and consolidate material firmly into place
5. Finish
6. Wet cure for 7 days
7. Clean equipment and surrounding area
8. See Full Instructions below for details
FULL INSTRUCTIONS:
PRE-POUR CONFERENCE:
1. Pre-pour conference shall be at least 1 week prior to the first concrete placement and shall include the specifier, the contractor and his foreman, the concrete supply company, CTS Cement Manufacturing Corporation, the testing agency, other applicable trades, and the owner’s representative.
SURFACE PREPARATION:
1. Remove a minimum of 1/16 inch from the application surface.
2. Concrete must be free of materials such as paint, oil, curing compound, bond breaker, or any material that will inhibit bonding. Mechanically remove loose, unsound, contaminated concrete.
3. The perimeter of the area to be repaired shall be sawcut or chipped perpendicular to the surface to a minimum depth of 2 inches. Do NOT cut or damage reinforcing steel.
4. Clean reinforcing steel by sandblasting or other mechanical means to achieve a white metal finish.
5. Thoroughly clean extraneous material such as dirt, loose chips, and dust from concrete surface. If compressed air is used, it shall be free of oil.
6. Concrete surface shall be saturated with potable water. Standing water shall be removed from surface to achieve a saturated-surface-dry (SSD) condition.
MIXING:
1. To avoid cumulative weighing errors of cementitious materials, the Komponent must be weighed out first or individually.
2. Water/Cement ratio shall be .50
3. Mix for 5 minutes minimum after all components are in the truck.
4. Concrete production shall comply with ASTM C94/C94M except where stated herein.
PLACEMENT:
1. Concrete temperature at placement must not exceed 90°F. Concrete over 60 minutes old must not have a temperature greater than 80°F.
2. No concrete shall be placed that is more the 90 minutes old measured from the time of batching.
3. Concrete temperature at placement must not be less than 55°F and concrete shall be protected from freezing temperatures for 7 days after placement.
4. Base concrete temperature shall not be less than 40°F at time of placement. Ambient conditions must be 40°F and rising at time of placement.
5. Normal placement and finishing techniques shall be used. There is little bleed water, so the start of the finishing must be when the concrete has started to set.
CURING:
1. Start water cure as soon as it can be done without marring the surface. Water cure for 7 days. Surface shall be kept continuously wet. Wetting and drying of the surface shall not be allowed. Fog spray, wet burlap, and ponding are acceptable methods.