Asphalt Revetments for Slope Protection in the Arcticby B. A. Vallerga, B. A. Vallerga Inc, Oakland, CA, USA,
C. L. Monismith, B. A. Vallerga Inc, Oakland, CA, USA,
R. Yüce, B. A. Vallerga Inc, Oakland, CA, USA,
Abstract: Experience in the Netherlands demonstrates that slope protection of coastal embankments subjected to heavy wave action can be accomplished with lining systems made of mixtures of asphalt and mineral aggregate. Three asphalt/aggregate materials formulations were evaluated: sand-asphalt, stone-mastic, and stone-asphalt-rubber. A test program was designed to characterize these materials with respect to fatigue life, thermal cracking, and long-term creep. Using the results of the testing program, various finite-element analyses on sand-asphalt lining systems were carried out to determine their structural behavior under wave loading and their resistance to low-temperature cracking and to creep deformations at high temperatures. It is concluded that asphalt mixtures made with locally available sands and gravels can be formulated which are suitable for construction of asphalt revetments for man-made islands which will be resistant to freeze-thaw cycles and of water action associated with the offshore Arctic environment.
Subject Headings: Revetments | Slopes | Offshore construction | Offshore structures | Sand (hydraulic) | Sand (material) | Water waves | Stones | Linings | Mixtures | Arctic | Netherlands
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