LABORATORY TESTS FOR CHARACTERIZATION OF ROAD EMBANKMENT LAYERS THROUGH BLENDED SAND/GRAVEL MIX PROPORTIONS MATERIALS

Abstract

Characterization of source materials for embankment layers’ construction is based on analysis of properties and characteristics. The study influence and improves engineering properties of embankment existing materials and imported natural brownish silt sand gravel with low plasticity. To improve the suitable materials for construction of road embankment layers in water logged section. Characterization and determine suitable proportions of blended source materials for construction of road embankment layers. Imported natural gravel was then blended with sand at different mixing ratios, targeting to determine properties and characteristics of material. The blending proportion for this study could be performed according to the mix ratios of sand/gravel mixtures start at 5%, 10%, 15%, 20%, 30%, and 40%. The sieve analysis, Atterberg limits, proctor compaction and CBR are the required tests for checking and determination of properties and characteristics of materials. In this study, we have tested and make analysis of the blending mixtures of sand/gravel. The tests results would guide us on selection of an optimum data/result for further research studies. This paper evaluates the performance of a blended materials and its implementation in embankment fill materials. The results will support in determination of suitability of improved materials as a road embankment and subgrade layers. The improved materials can sustain the effect of water penetration through its layers and allow the effective upper pavement layers.