Attachment_A_-_Drawings___Specfifications.pdf

This file appears to be technical specifications and drawings for structural concrete work, including detailed requirements for a fuel island pad and bollard installation. The document contains engineering diagrams showing a fuel island pad section and a 6-inch bollard installation detail, along with comprehensive structural concrete specifications under Section 402.

The specifications detail requirements for concrete mix design, materials, and testing procedures. Key technical requirements include: maximum water to cementitious ratio of 0.50, minimum cementitious content of 480 lbs per cubic yard, target air content of 6.5 ± 1.5 percent, and various permeability requirements based on concrete application (ranging from 9.5% to 12.0% for volume of permeable voids). The document includes specific gradation requirements for different concrete grades ranging from Grade 2.5 to Grade 6.0, with corresponding cementitious content requirements from 526 to 700 lbs per cubic yard. For silica fume bridge overlay concrete, the specifications call for maximum 595 lbs of cement per cubic yard, 30 lbs of silica fume per cubic yard, and 0.40 maximum water-to-cement ratio.