Title: 309R-96: Guide for Consolidation of Concrete
Publication: Technical Documents
Appears on pages(s): 39
Note: A newer version of this document exists. This document was replaced by 309R-05.
Consolidation is the process of removing entrapped air from freshly placed concrete. Several methods and techniques are available--the choice depending mainly on the workability of the mixture, placing conditions, and degree of air removal desired. Some form of vibration is usually employed. This guide includes the latest information on the mechanism of consolidation, and gives recommendations on equipment characteristics and procedures for various classes of construction. Topics covered extensively include: consolidation of mass concrete; consolidation in congested areas; fundamentals of vibration; methods of consolidation; and effect of mixture properties on consolidation.