SAND DUNES MODIFICATION BY NATURAL ASPHALT WITH CEMENT AND LIME

Abstract

This laboratory research program was carried out to investigate the feasible use
of locally available material, which is natural asphalt from Heet city, to improve the
prevalent sand dunes. The test program was divided into two groups the first one is by
adding (5, 7.5 and 10%) natural asphalt, while the second is by adding Portland cement and lime (3 , 6 and 9%) individually to sand-asphalt mixes. Series of laboratory tests are
carried out including classification, Marshall stability and unconfined compression Tests
Generally, this study displayed significant improvement in the performance of sand dunes by using natural asphalt, that can be used in stabilization as economic and available material instead of industrial asphalt.