Title: Proposed ACI Standard:
Recommended Practice for the Use of
Author(s): ACI Committee 223
Publication: Journal Proceedings
Appears on pages(s): 319-339
Keywords: admixtures: aggregates: calcium aluminates: eonerete ew&ruction: concrete finishing (fresh concrete):curing: drying shrinkage: ettringits: expansive cement concrete: expansive cement Type K:expansive cement Type S: expansive cements.
Shrinkage-compensating concrete is used extensively in various types of construction to eliminate or minimize cracking caused by drying shrinkage. Although its characteristics are in most respects similar to those of portland cement concrete, the materials, selecting of proportions, placement, and curing must be such that sufficient expansion is obtained to compensate for subsequent drying shrinkage. This recommended practice sets forth the criteria and practices necessary to insure that expansion occurs at the time and in the amount required, In addition to a discussion of the Basic principles, methods and details are given covering structural design, concrete mix proportioning, placement, finishing, and curing. A bibliography of the major references covering expansive cements and concretes is also appended.