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 ...
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 ...
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 ...
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 ...
A pedestrian crossing is a place designated for pedestrians to cross a road where they can cross safely across the flow of vehicular traffic. It also makes the pedestrians easy to be spotted by motorists, by keeping them ...
Nearly 30% of the total traffic flow on most highways in Sri Lanka comprises of motorcycles. It is a popular mode of transport of middle income families, as well as the youth, due to the lower cost in transport and being ...
Vehicle ownership is a key determination factor in any country’s economy. In the Sri Lankan context, it has been identified that vehicle ownership rate has expressively increased over the last decade. Apparently, the road ...
Sustainable transport is essential for achieving most, if not all, of the proposed Sustainable Development Goals (SDGs). Improvement of public transport service quality is one of the best alternatives to achieve sustainable ...
Particle packing density is one of the most important parameters in materials engineering. Ultra-high-performance concrete (UHPC), lightweight concrete, porous concrete, advanced ceramic materials, porous asphalt, filter ...
The escalating demand for highways and other related structure development of any country may lead to the introduction of fast and sustainable construction techniques and materials. Internal curing is an emerging technology ...
The model share of pedestrians, in developing cities has the tendency of being very high, as opposed to developed cities. For example, between 25-50% of trips in major Indian cities, and about 50% of all trips in major ...
There has been an intensive process of urbanization which has brought about need for rapid construction of roads and related infrastructure during the end of the last century. Therefore development of economical road ...
Rocketed trend of world wide Concrete Block Paving (CBP) adherence to the road network has already influenced the Sri Lanka as a well performing alternative for the rigid concrete pavements which caused many issues over ...
The intensive process of urbanization in the last century has caused a need for rapid construction of roads and related infrastructure in Sri Lanka. The rapid demand for better roads and services required the designers and ...
Rate of heat flux from solar radiation, thermal properties of concrete and heat loss from concrete due to convection parameters of surrounding influence the temperature variation of an exposed concrete slab. Literature ...
The main consideration of any pavement design is to provide structural alternatives that are feasible both technically and economically. This can be achieved by specifying pavement layer thickness with proper types of ...
The geometric design standards of roads in Sri Lanka are primarily based on the ‘Geometric Design Standards of Roads (GDSR) of Road Development Authority, 1998. The GDSR is a complete set of guidelines that the Highway ...
The paper presents the research carried out to prepare a set of guidelines for the selection of appropriate specifications for low volume roads. It is an essential requirement to have such a guideline because lack of such ...
Project evaluation, especially road investment project evaluations need to be handled carefully, since the initial capital outlay for such projects is considerably higher than other projects and it is highly essential for ...
Road network is playing an important role in the development of any country. With the present development in Sri Lanka its road network, consisting of national, provincial and rural roads are developing rapidly. Government ...