Description
Shrinkage-compensating concrete is used in construction to minimize drying-shrinkage cracking. Its characteristics are similar to those of portland-cement concrete. The materials, proportions, placement, and curing should ensure that expansion compensates for subsequent drying-shrinkage.
This guide sets forth criteria and practices to ensure the development of expansive strain in concrete. In addition to a discussion of basic principles, methods and details are given covering structural design, concrete mixture proportioning, placement, finishing, and curing.
The materials, processes, quality control measures, and inspections described in this document should be tested, monitored, or performed as applicable only by individuals holding the appropriate ACI Certifications or equivalent.
Keywords: cement, calcium; cement, expansion; concrete, shrinkagecompensating; cracking, shrinkage; mixture proportions; restraints; shrinkage,drying; slab-on-ground; structural design.
Table of Contents
Chapter 1—Introduction and scope
1.1—Introduction
1.2—Scope
Chapter 2—Notation and definitions
2.1—Notation
2.2—Definitions
Chapter 3—General considerations
3.1—Preconstruction meeting
Chapter 4—Materials
4.1—Expansive cement and expansive component systems
4.2—Aggregates
4.3—Water
4.4—Admixtures
4.5—Concrete
Chapter 5—Structural design considerations
5.1—General
5.2—Restraint
5.3—Reinforced structural slabs
5.4—Reinforced slabs-on-ground
5.5—Post-tensioned structural concrete
5.6—Post-tensioned slabs-on-ground
5.7—Walls
5.8—Toppings
5.9—Formwork
Chapter 6—Concrete mixture proportioning
6.1—General
6.2—Concrete proportions
6.3—Admixtures
6.4—Consistency
6.5—Mixture proportioning procedures
Chapter 7—Placing, finishing, and curing
7.1—Placing
7.2—Finishing
7.3—Curing
Chapter 8—References
8.1—Referenced standards and reports
8.2—Cited references
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