Lund, Mia Schou Møller1; Hansen, Kurt Kielsgaard1; Hertz, Kristian Dahl1
1 Department of Civil Engineering, Technical University of Denmark2 Section for Construction Materials, Department of Civil Engineering, Technical University of Denmark3 Section for Building Design, Department of Civil Engineering, Technical University of Denmark
The Pearl-Chain Bridge Technology introduces a new innovative arch bridge solution which com-bines the statical advantages of an arch bridge with a minimum of traffic disturbance. The arch-shaped substructure is stabilized by a filling material, e.g. cement stabilized gravel, which should meet several requirements on its moisture properties. In this paper the frost resistance, the liquid water permeability and the water vapour permeability of cement stabilized gravel are examined for two different cement contents. It is found that a small increase in cement content from 4% to 5% increases the 28-days compressive strength from 6.2 MPa to 12.3 MPa. The frost resistance of cement stabilized gravel with 5% cement content is better than for cement stabilized gravel with 4% cement content. The liquid water permeability coefficient and the water vapour permeability coefficient are significantly higher for a cement content of 4% compared to 5%.
Proceedings of 10th Fib International Phd Symposium in Civil Engineering, 2014
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10th fib International PhD Symposium in Civil Engineering, 2014