STABILIZATION OF DUNE SAND FOR BASE AND SUB-BASE APPLICATIONS U'T'ILIZING FOAMED ASPHALT TECHNOLOGY
I. M. Asi, H. I. AI-Ahrlul Wahhah, M. I. Khan, anal Z. U. Siddiqi
asphalt technology, which includes the foaming of hot asphalt cement by
injecting a small amount of cold water, has increasingly gained consideration
as an effective and economical soil
improvement and stabilization technique mainly because of its improved
aggregate penetration and coating capabilities (due to decrease in viscosity
and increase in surface area), and handling and compaction characteristics.
This laboratory research work was carried out to investigate the feasible use
of foamed asphalt technology to improve certain engineering properties of dune
sand for use as base or sub-base material. The variables measured were intended
indication of the relative improvement of dune sand as well as permit the
development of design procedure, for the use of foamed asphalt technology as a stabilizing process in the
harsh climate of the
Keywords: Foamed asphalt, emulsified asphalt, dune sand.