Stabilization of granular volcanic ash in Sana'a area

This paper presents the findings of compaction and strength characteristics of a granular volcanic ash from sana'a city center,which was mixed with various percentages of two binders to form a stabilized material namely; fine soil and portland cement. the study showed a significant improvement of the volcanic ash properties. the maximum dry density and california bearing ration (cbr) were considerably increased by addition of stabilizers at different rates for different binder contents. optimum fine soil content for the maximum dry density and cbr is determined. a relationship between the optimum moisture content and the binder combination content for different fine soil percentages was established. © school of engineering,taylor's university.