Effects of Soil Compaction in the Fight against Unpaved Roads Degradation Due to Erosion Caused by Heavy Rain: Proposition of a Specific CBR Evaluation Model

Unpailt roads are generally subject to erosion, when they need be bitumen, civil engineers know the geotechnical capabilities of soil layers used as support, among these capabilities, for example, characteristics withstand erosion. CBR has often been classify soils according their compaction. In this article, we propose a correlation between and eroded mass through simulator. Indeed, in article show that using simulator, can classified ability water whether internal or external. Indeed it is shown related compaction capacity just also has. We study effects influence on an unpaved road resist erosion caused by falling raindrops. To do this, lateritic submitted different pressures. The compacted then test rain fall mini Correlations masse pressure well derived. shows reduces erodibility increases bearing soil. formula obtained significant because have new way evaluating laboratory.