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KNAPP RESIDENCE OUTLINE SPECIFICATIONS <br /> SECTION 02515 - UNIT PAVERS <br /> A. PROJECT INCLUDES <br /> 1 . Exterior concrete pavers over prepared setting bed. <br /> B. QUALITY ASSURANCE ' <br /> 1 . Construction Tolerance: Unit-to-unit offset tolerance of <br /> 1/16 inch from flush, 1/8 inch in 2 feet and 1/4 inch in 10 <br /> feet from level or required slope. <br /> C. PRODUCTS <br /> 1 . Brick Pavers : <br /> a. Class : ASTM C 902 , Weather Class SX for use subject to <br /> freezing application. <br /> 2 . Concrete Pavers : Solid concrete interlocking paving units , <br /> ASTM C 936 , normal weight aggregates . <br /> 3 . Mortar and Grout : <br /> a . Mortar: Portland cement and lime setting-bed mortar, <br /> ASTM C 270, Type M. <br /> b. Bond Coat : Latex-modified Portland cement slurry . <br /> c . Grout : Latex-modified Portland cement grout . <br /> d. Integral Color: Colored aggregate. <br /> 4 . Edge Restraints : Triangular PVC extrusions, rigid type for <br /> straight edges and flexible type for curved edges . <br /> 5 . Setting Bed: Ungrouted mortarless setting bed over filter <br /> fabric and stone dust bed and prepared subbase. <br /> 6 . Joint Treatment : Hand-tight joints with sand filler . <br /> END OF SECTION <br /> DIVISION 2 - SITE WORK ' PAGE 2-6 <br />