Laserfiche WebLink
3.2 SURFACE PREPARATION <br /> A. Protection: Protect surrounding areas and adjacent surfaces from the following: <br /> 1. Minimal accumulation of dust from grinding and polishing. <br /> 2. Contact with overspray of penetrating hardener/densifier. <br /> 3. Contact with overspray of protective surface treatment(stain guard) <br /> 4. Contact with joint filler <br /> B. Clean Surfaces: Remove dirt, dust, debris, oil, grease, curing agents, bond breakers, paint, coatings, and <br /> other surface contaminants which could adversely affect installation of polished concrete floor system. <br /> C. Fill concrete joints and shave flush prior to running 100 grit resin bond tooling. <br /> 3.3 INSTALLATION <br /> A. Install polished concrete floor system in accordance with manufacturer's instructions at locations <br /> indicated on the Drawings. <br /> B. Aggregate Exposure: <br /> 1. Fine Aggregate: Mottled salt-and-pepper aggregate exposure. <br /> D. Polished Concrete Floor System <br /> 1. Open Slab Surface: <br /> a. As required to provide a uniform final polish begin grinding with 80-grit or 150-grit metal bond <br /> diamond tooling. Expose coarse concrete aggregate when required to reach lows spots <br /> within floor surface. <br /> b. Review condition of floor with 7-Eleven Construction Manager. Obtain approval from the <br /> Construction Manager if large coarse aggregate is required to be exposed in order to correct <br /> slab finishing deficiencies. Variations to the precise grinding, densifying, polishing and stain <br /> guard application are anticipated. <br /> C. Progressive edge grinding will be necessary with 1/2"of all vertical abutments, including walls, <br /> cases, columns, posts and racking systems. <br /> d. Joint filler shall be flush with surface after grinding and polishing steps. Additional passes <br /> along curled joints may be necessary to even the surfaces and remove joint filler chatter. <br /> 2. Remove metal-bonded diamond scratches by grinding with progressively finer metal-bonded <br /> diamonds, up to metal bond 150-grit. <br /> 3. Apply Densifier: <br /> Apply to the point of resection to ensure complete acceptance of the densifier product at the <br /> recommended step per manufacturer's recommendations. <br /> 4. Oil Repellent& Salt Repellent: <br /> Apply per manufacturers requirement. <br /> 5. Floor Polishing: <br /> a. Remove 150-grit metal-bonded diamond scratches by grinding with a transitional diamond per <br /> manufacturers recommendation <br /> b. Remove transitional resin-bonded diamond scratches by grinding with 100-grit resin-bonded <br /> diamonds. <br /> c. Remove 100-grit resin-bonded diamond scratches by grinding with 200-grit resin-bonded <br /> diamonds. <br /> d. Remove 200-grit resin-bonded diamond scratches by grinding with 400-grit resin-bonded <br /> diamonds. <br /> 03 35 36 <br /> 7-Eleven 2-26-2018 <br />