501.3(k) 501.3(l) When using this chart begin in the upper left corner and read across the entire row then start again on the left side in the next row. Produce the texture in one pass, without overlapping the previous pass, to provide a uniform finish. Keep the texturing device free of hardened concrete particles. If unsatisfactory results are obtained, stop the placement of concrete until the equipment deficiency or malfunction is corrected. 4.c Macrotexture. For pavements exposed to traffic with radii less than 50 feet, ensure the final surface finish meets a minimum Mean Texture Depth (MTD) of 0.040 inches, unless otherwise directed or indicated . Conduct the test for macrotexture depth according to ASTM E965 in the presence of the Representative. Conduct a minimum of four test locations for each lane of pavement. The Representative will determine each test location and will document the 4 rotated d iameter measurements, the calculated average diameter, and the MTD at each location. If any determined MTD is less than 0.040 inches, conduct additional tests every 50 feet to determine the extent of deficient macrotexture. Mechanically groove the pavement, determined deficient in macrotexture, perpendicular to the roadway, at no additional cost to the Department, having the following characteristics:
• Rectangular in shape
• 1/8 inch (± 1/32 inch) in width
• 1/8 inch to 3/16 inch in depth
• 1 1/2-inch nominal center -to-center sawed groove spacing
Terminate grooves as follows:
• No closer than 2 inches of transverse joints
• No closer than 3 inches of longitudinal joints
• Not greater than 15 inches any joint
Use smaller machine to minimize non- grooved areas of the pavement. Do not overlap grooves. When diamond grinding surface corrections are made in the hardened concrete for pavement smoothness, no additional texturing is required.
dissipation of bleed water. Maintain the curing materials until the pavement has achieved sufficient strength for opening to traffic as specified in Section 501.3(q). Do not mar the concrete surface. After removing forms and correcting honeycombed areas, cure the sides with the same method as the surface. When using covers, secure over the entire surface and sides. The Representative will suspend co ncrete operations immediately if sufficient curing is not provided. Cure by the same method throughout the work unless directed to change by the Representative . Have material available for emergency curing. If normal curing is delayed, apply an intermediate monomolecular film curing compound to all cement concrete patches before normal curing. Apply the monomolecular film in a light -fog application, u