INSTALLATION OF FORMWORK A. Comply with ACI 301. B. Construct formwork, so concrete members and structures are of size, shape, alignment, elevation, and position indicated, within tolerance limits of ACI 117 and to comply with the Surface Finish designations specified in Section 033000 "Cast-In-Place Concrete" for as-cast finishes. C. Limit concrete surface irregularities as follows: 1. Surface Finish-1.0: ACI 117 Class D, 1 inch. 2. Surface Finish-2.0: ACI 117 Class B, 1/4 inch. 3. Surface Finish-3.0: ACI 117 Class A, 1/8 inch. D. Construct forms tight enough to prevent loss of concrete mortar. 1. Minimize joints. 2. Exposed Concrete: Symmetrically align joints in forms. E. Construct removable forms for easy removal without hammering or prying against concrete surfaces. 1. Provide crush or wrecking plates where stripping may damage cast-concrete surfaces. 2. Provide top forms for inclined surfaces steeper than 1.5 horizontal to 1 vertical. 3. Install keyways, reglets, recesses, and other accessories, for easy removal.
