A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Field inspections and a recent study report ('Cracking in Bridge Decks: Causes and Mitigation', CDOT Report 99-8) showed that the cracking problem of bridge decks in Colorado has not been completely solved, and therefore, there is a pressing need for further improvement of the concrete mix designs currently used in Colorado for concrete bridge decks. It was found in this study that (1) the ratio of water to cementitious materials has the most significant effect on chloride permeability; (2) the permeability is not strongly correlated to the total air entrainment; (3) the time for the first cracking to occur is related directly to the cement content and thus the strength of concrete; (4) Class F fly ash is better than Class C fly ash in improving both the chloride permeability and cracking resistance of concrete; (5) a proper increase of coarse aggregate can improve the permeability, the cracking resistance, and 28-day strength of concrete.
Field inspections and a recent study report ('Cracking in Bridge Decks: Causes and Mitigation', CDOT Report 99-8) showed that the cracking problem of bridge decks in Colorado has not been completely solved, and therefore, there is a pressing need for further improvement of the concrete mix designs currently used in Colorado for concrete bridge decks. It was found in this study that (1) the ratio of water to cementitious materials has the most significant effect on chloride permeability; (2) the permeability is not strongly correlated to the total air entrainment; (3) the time for the first cracking to occur is related directly to the cement content and thus the strength of concrete; (4) Class F fly ash is better than Class C fly ash in improving both the chloride permeability and cracking resistance of concrete; (5) a proper increase of coarse aggregate can improve the permeability, the cracking resistance, and 28-day strength of concrete.
Development of Optimal Concrete Mix Designs for Bridge Decks
2001
70 pages
Report
No indication
English
Optimal Rehabilitation Times for Concrete Bridge Decks
| British Library Online Contents | 1993
Optimal Rehabilitation Times for Concrete Bridge Decks
| British Library Conference Proceedings | 1993
Finishing concrete bridge decks
| Engineering Index Backfile | 1963
Assessment of high-performance concrete mix designs for Tennessee bridge decks
| British Library Conference Proceedings | 2004
Strength of Concrete Bridge Decks
| NTIS | 1981