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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: 304.2R-91: Placing Concrete by Pumping Methods
Publication: Technical Documents
Appears on pages(s): 19
Abstract:Note: 304.2R-91 is Out of Print. However, a newer version of this document exists. This document was replaced by 304.2R-96.
Describes pumps for transporting and placing structural concrete. Rigid and flexible pipelines are discussed, couplings and other accessories described. Recommendations for proportioning pumpable concrete suggest optimum gradation of aggregates; outline water, cement, and admixture requirements; and emphasize the need for field testing of trial mixes for pumpability. Importance of saturating light-weight aggregates is stressed. Suggestions are given for layout of lines; for maintaining uniformed delivery rate as well as uniform quality of concrete at the end of the line; and or cleaning out pipelines. This report does not cover shotcreting or pumping of nonstructural insulating or cellular types of concrete.
Note: 304.2R-91 is Out of Print. However, a newer version of this document exists. This document was replaced by 304.2R-96.