Mar 25, 2026 · A concrete slab is a structural feature, usually of constant thickness, that can be used as a floor or a roof. A slab-on-ground is supported on the subsoil and is usually reinforced with …

This guide presents state-of-the-art information relative to the construction of slab-on-ground and suspended-slab floors for industrial, commercial, and institutional buildings. It is applicable to the …

Acceptable concrete cracking Q. What is considered as acceptable concrete cracking in cast-in-place foundation walls and slabs per ACI documents? My company is the concrete contractor on a large …

Popouts or popoffs? Q. My concrete driveway was placed last year in the fall. This summer, I noticed that small concrete fragments have broken off the driveway surface exposing large pieces of …

This guide presents information on the design of slabs-on-ground, primarily industrial floors. It addresses the planning, design, and detailing of slabs. Background information on design theories is followed …

The definitions provided herein complement that source. backshores—shores left in place or shores placed snugly under a concrete slab or structural member after the original formwork and shores …

What nominal maximum sizes of aggregate are recommended? Q. What nominal maximum sizes of aggregate are recommended? A. According to 26.4.2.1 (a) (5) of ACI 318-19, nominal maximum size …

The resulting shear capacity will be less than calculated in ACI 318-14, especially if the design section has a low ρ as is likely in double-tee flanges, other precast slab elements, or cast-in-place slabs.

the slab surface is, demonstrating the quality of the initial strike off and finishing process. The F-number system uses floor surface curvature calculated from elevation differences over 24 in. (600 mm) …

American Concrete Institute