Dense Graded Aggregate Base has been used for road construction work in the Sri Lanka for many years. Rocks which are used to produce the aggregate are not available everywhere in the island. For example it is difficult ...

Measuring the density of asphalt concrete in the field is very important in quality controlling of the flexible pavements. Malpractices use in compaction of asphalt concrete in the field causes quality maintaining and ...

Today in each part of the country, road surfacing is done by Asphalt Concrete. With the increase usage of Asphalt Concrete, the necessity of Quality Management System was arisen. Hence the Quality Management System for ...

Polymer modification of asphalt binders has increasingly become the norm in designing optimally performing pavements. Pavements with polymer modification exhibits greater resistance to permanent deformation and thermal ...

Highway Development and Management Tool (HDM-4) is a powerful system for the analysis of road management and investment alternatives and it used to prepare road investment programmes and to analyze road network strategies. In ...

Major part of the Eastern and Northern provinces of Sri Lanka covered with Cohessionless soil which is available abundance in this region. It is important that utilization of locally available soil for the construction ...

In 1989, According to the Provincial Council Act, the responsibility of managing of about 16,500 km Provincial roads which were classified as class C & D and Gazette noticed as maximum gross weight limit of 05 Tons were ...

Grading of asphalt cement is a very important factor in usage hot mix asphalt. It allows selecting the correct bitumen for road construction work. Bitumen or asphalt grading systems have changed from simple fundamental ...