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
Chapter 2—Notation and definitions
Chapter 3—General considerations
4.1—Expansive cement and expansive component systems
Chapter 5—Structural design considerations
5.3—Reinforced structural slabs
5.5—Post-tensioned structural concrete
Chapter 6—Concrete mixture proportioning
6.5—Mixture proportioning procedures
Chapter 7—Placing, finishing, and curing
8.1—Referenced standards and reports