Asphalt Cement Concrete (ACC) Placement A. ACC shall be placed at a uniform thickness equal to the thickness of the existing ACC. B. ACC overlays and paving shall be placed in accordance with the requirements of Section 2303 of the IDOT Standard Specification. C. Lightly tack the edges of the existing pavement for full-depth ACC patches or the entire patch area for patches to receive ACC over a PCC base. Apply tack coat just prior to placing ACC. D. Deposit ACC in layers. The upper 5 inches shall be placed in at least two layers, the top layer not to exceed 2 inches in thickness. E. Thoroughly compact each layer while hot by rolling or compacting with a vibratory compactor to provide a dense, compact surface. F. Place succeeding layers only after the preceding layer is properly compacted. G. Smooth the final layer with a steel-tired finish roller sized for the operation. H. The final compacted surface shall be level with, or not more than 1/8 inch above, the surrounding pavement. I. Smoothness shall comply with Section 2303.15 of IDOT Standard Specifications. J. Patch material shall not extend beyond the edges of the patch. Such material shall be removed...
