Apr 1, 2025 · 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 span. There are one-way slabs, two-way slabs, waffle slabs, flat …

9.8—Protection of slab during construction 9.9—Temperature drawdown in cold storage and freezer rooms 9.10—Joint filling and sealing Chapter 10—Quality control checklist, p. 302.1R-61 10.1—Introduction 10.2—Partial list of important items to be observed Chapter 11—Causes of floor and slab surface imperfections, p. 302.1R-62

Example: Slab Section •Tolerances are not cumulative, range of acceptance: •Example 1: thickness -1/4 in., top of slab elevation +1/2 in. •Example 2: top of slab elevation +3/4 in., bottom of slab elevation -3/4 •Both examples are within concrete tolerances, need to check reinforcement-1/4 in. +1/2 in. Example 1 Specified Example 2 +3/4 in.

The American Concrete Institute (ACI) is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, certification programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who …

11.8—Protection of slab during construction, p. 59 11.9—Temperature drawdown in cold storage and freezer rooms, p. 59 11.10—Joint filling and sealing, p. 60 CHAPTER 12—QUALITY CONTROL CHECKLIST, p. 60 12.1—Introduction, p. 60 12.2—Partial list of important items to be observed, p. 60 CHAPTER 13—CAUSES OF FLOOR AND SLAB

backshores—shores placed snugly under a concrete slab or structural member after the original formwork and shores have been removed from a small area at a time, without allowing the slab or member to deflect; thus, the slab or other member does not yet support its own weight or existing construction loads from above.

3.2—Slab types 3.3—General comparison of slab types 3.4—Design and construction variables 3.5—Conclusion Chapter 4—Soil support systems for slabs-on-ground, p. 360R-8 4.1—Introduction 4.2—Geotechnical engineering reports 4.3—Subgrade classification 4.4—Modulus of subgrade reaction 4.5—Design of slab-support system 4.6—Site ...

We always require concrete slabs to be vibrated, regardless if they are cast on ground, temporary formwork, or metal deck. I know that ACI 301 provides provisions for vibrating normal-weight concrete and lightweight concrete, but does it have a section that explicitly states that a concrete slab must be vibrated?

Conventional saw cuts should generally be made to one-fourth the depth of the slab (ACI 327R-14), although early-entry saws can cut to a lesser depth and still be effective (ACI 224.4R-13). In terms of preventing damage where cuts cross each other, joint protectors can help maintain the integrity of the slab at intersections.

• Back shores –shores placed under a slab or structural member after the original formwork and shores have been removed from a small area without allowing the entire slab or member to deflect of support its own mass or existing construction loads. • Preshores –added shores placed under selected panels of a deck forming