A laboratory investigation for potential durability of ready-mixed concrete retempered for air content and workability
作者:
B. W. Langan,
M. A. Ward,
期刊:
Canadian Journal of Civil Engineering
(NRC Available online 1976)
卷期:
Volume 3,
issue 4
页码: 570-577
ISSN:0315-1468
年代: 1976
DOI:10.1139/l76-061
出版商: NRC Research Press
数据来源: NRC
摘要:
The effects of agitation and retempering on some properties of fresh and hardened concrete are considered.Data are presented on the influence of agitation and retempering with an air-entraining agent on the workability, compressive strength, and air void system in hardened concrete.The results indicate that although agitation reduces air content and increases the spacing factor, the original parameters can be regained by proper retempering. It is shown that any loss in compressive strength due to retempering is accompanied by an increase in potential durability due to the improvement of the air void system.
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