Aggregate Sand Soil ( ASS ) in Road Pavement Trials
 

Through research,LGED has evolved a new road pavement design known as the Aggregate Sand Soil (ASS) which is a replacement of khoa sub-base and khoa base course. This technology has proved to be a satisfactory and cost effective pavement design in respect of low cost, low technology, labor-intensive roads for rural Bangladesh provided the pavement is protected with a reasonable surface treatment, such as, a thin layer of premixed bituminous seal coat. The main advantage of ASS road is that it reduces significantly the use of bricks/stones which forms the single largest component  of cost in conventional pavements. Thus, the cost of pavement with ASS base (excluding surface treatment) has been found considerably lower than conventional pavement. Also in respect of pavement deteriorations and maintenance, ASS road has exhibited minimum deteriorations.
 
 
 
 

Last Updated: December 1,1999
By MIS Cell