EVALUATION OF RETARDING ACIDIFICATION FUNCTION IN ROAD EMBANKMENT STRUCTURES

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  • 道路盛土構造が有する酸性化抑制機能の評価

Abstract

<p> The Neogene Sedimentary Rock containing heavy metals is distributed over the southern coastal area in Fukushima. Therefore, leakage measures had been required for using its rock containing naturally derived heavy metals into embankment, etc. in public works by regulation standard from 2010. However, these rocks and soils have been used for road embankment in many areas up to now without serious problem, even though there is a possibility that heavy metals leakage occurs in some conditions by material characteristics. This study evaluated the effectiveness of retarding acidification caused by a soil covering and a degree of compaction based on the results of outdoor exposure tests using pilot-scale road embankment constructed of the Neogene sandstones.</p>

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