U.S. Experience With Armor-Stone Quality and Performanceby Richard J. Lutton, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,
Abstract: In the past 30 years problems with deterioration and cracking of armor stone in the United States have been concentrated in northern regions, particularly around the Great Lakes. The explanation there is found in the combination of a harsh winter environment and an abundance of convenient sources of dolomitic limestone, only marginally suitable for producing large armor stone for that environment. Elsewhere in most of the country, the performance of armor stone has largely been considered satisfactory.
Subject Headings: Armor units | Rocks | Gravels | Deterioration | Limestone | Lakes | Cracking | Winter | Great Lakes | North America | United States
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