302. 1R-04 Guide for Concrete Floor and Slab Construction 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 construction of normalweight and struc-tural lightweight concrete floors and slabs made with conven-tional portland and blended cements
When should saw cuts be made on a concrete slab? A Saw cuts, also called relief cuts, should be timed carefully to control cracking and maintain the integrity of the slab According to ACI 302 1R-15, saw-cutt
slab, concrete Topic 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 reinforcing bars or welded wire mesh A suspended slab (or structural slab) spans between supports and must be reinforced to resist bending moments calculated from statics based on the magnitude of load and
Design and Construction of Slabs-on-Ground - Concrete Q A A The simple answer is no If the slab-on-ground is not relied upon to carry loads from the building structure, the ACI 318 Building Code does not cover the design Section 1 4 8 in ACI 318-191 states: “This Code does not apply to design and construction of slabs-on-ground, unless the slab transmits vertical loads or lateral forces from other portions of the structure to the soil ” Many
Acceptable concrete cracking 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 warehouse project, and I want to discuss the potential for cracking with the contractor and the owner A Concrete cracks are possible on any project, so it’s wise to set reasonable expectations for
Shear Design Provisions in ACI 318-19 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
Key Changes in the 2019 Edition of the ACI Building Code (ACI 318-19) The use of higher-grade reinforcement raised concerns about serviceability (cracking and deflections), which were addressed through a series of changes for slab and beam minimum reinforcement, efective moment of inertia, and requirements for deflection calculations for two-way slabs
ACI 360R-10 Guide to Design of Slabs-on-Ground This guide covers the design of slabs-on-ground for loads from material stored directly on the slab, storage rack loads, and static and dynamic loads associated with equipment and vehicles
Reported by Committee 302 - American Concrete Institute 2 GUIDE TO CONCRETE FLOOR AND SLAB CONSTRUCTION (ACI 302 1R-15) ACI 302 2R provides recommendations for the design and construction of concrete slabs that will receive moisture- sensitive or pH-sensitive flooring materials or coatings for both slabs-on-ground and suspended slabs