Eighteen-inch square grout pads are spaced at a maximum of six feet on center and positioned on each side of panel openings along the footing, sized per the foundation plan. The concrete grout below the panel is vibrated to obtain continuous bearing prior to erecting the roof structure. High-density plastic shims are provided on the grout pads as required prior to crane releasing support. Grout pads extend a minimum of three inches from each face of the panel, and are widened where panel thickness exceeds twelve inches. Single grout pads centered on panel joints are prohibited.
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