Abstract
The high workability of self-compacting concrete (SCC) invites to high casting rates. However, casting walls at high rate may result in large pressure at the bottom of the form and subsequently compression of the air voids. This paper deals with the influence of hydrostatic pressure during setting on the air void structure of hardened, air entrained SCC.
The subject was examined through laboratory investigations of SCC with two different amounts of air entrainment. The condition in the form was simulated by using containers making it possible to cure concrete under various pressures corresponding to the bottom of castings of 0, 2, 4, and 6 meters height. The laboratory investigations were supplemented with data from two full-scale wall castings. The air void structure of the hardened concretes was determined on plane sections.
The results indicate that the pressure related changes of the air void structure may be estimated by using Boyle-Mariottes law. However, other conditions such as the form filling method might influence.
| Original language | English |
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| Title of host publication | SCC 2005 : Proceeding of the Second North American Conference on Design adn use of Self-Consolidating Concrete (SCC) and the Fourth International RILEM Symposium on Self-Compacting Concrete |
| Number of pages | 1270 |
| Volume | 2 |
| Place of Publication | Chicago |
| Publisher | Hanley Wood, LLC |
| Publication date | 2005 |
| Edition | 1 |
| Pages | 327-333 |
| ISBN (Print) | 0-924659-64-5 |
| Publication status | Published - 2005 |
| Event | SCC 2005 : The Second North American Conference on Design adn use of Self-Consolidating Concrete (SCC) and the Fourth International RILEM Symposium on Self-Compacting Concrete - Chicago, USA Duration: 1 Jan 2005 → … |
Conference
| Conference | SCC 2005 : The Second North American Conference on Design adn use of Self-Consolidating Concrete (SCC) and the Fourth International RILEM Symposium on Self-Compacting Concrete |
|---|---|
| City | Chicago, USA |
| Period | 01/01/2005 → … |
Cite this
Jensen, M. V., Hasholt, M. T., & Geiker, M. R. (2005). The effect of form pressure on the air void structure of SCC. In SCC 2005: Proceeding of the Second North American Conference on Design adn use of Self-Consolidating Concrete (SCC) and the Fourth International RILEM Symposium on Self-Compacting Concrete (1 ed., Vol. 2, pp. 327-333). Hanley Wood, LLC.