Title:
Use of Air-Entraining Concrete in Canal Lining
Author(s):
Joseph J. Waddell
Publication:
Journal Proceedings
Volume:
46
Issue:
9
Appears on pages(s):
57-64
Keywords:
no keywords
DOI:
10.14359/12044
Date:
9/1/1949
Abstract:
This paper presents a discussion based on field observations of the use of air entrainment in canal lining concrete. The Bureau of Reclamation made studies of air-entraining agents for use in the irragation canal lining for the Friant-Kern Canal on the Bureau's Central Valley Project in California. Results to date indicate that appreciable benefits accrue when an air-entraining agent is used in concrete which is placed in and compacted by means of a mechanical slip-form. Care is necessay in adjusting concrete mixes to incorporate entrained air because of the sensitivity to mix changes of concrete for slip-form placement.