Aci 347r14 Guide To Formwork For Concrete Pdf -

ACI 347R-14 references ACI 117 regarding tolerances for plumb, line, and level. The guide advises that forms must be built within tolerances slightly stricter than the final concrete requirement to account for movement during placement.

A contractor plans to pour a 12-foot-tall wall at a rate of 4 feet per hour, using Type I cement at 70°F. ACI 347R-14’s wall pressure formula yields a maximum lateral pressure of 600 psf. Without the guide, an engineer might incorrectly assume full hydrostatic pressure (~750 psf), overdesigning the forms and wasting money—or worse, underestimate and cause a blowout. aci 347r14 guide to formwork for concrete pdf