Asphalt paving, compaction & testing

Fast and efficient asphalt paving for rural road rebuilds The rural roads near Brandýs nad Labem, in the heart of the Czech Republic, may not be as heavily travelled as their counterparts in Prague, about 25km (15.5 miles) to the southwest, but they are nevertheless crucial pipelines to the rural and agricultural areas of the country. An assessment by regional authorities indicated that these roads are in need of repair. That led to cold planing and...

Paving a Japanese airport within strict time constraints In Japan, major efforts are being made to both conserve energy and materials, while also delivering high quality airport runways. At Haneda Airport, as well as at the Fukuoka, Chitose and Sendai airports, innovative use is being made of asphalt paving equipment from Sumitomo. The latest model HA60W J paver from Sumitomo is being used to lay warm mix asphalt, while the contractors is also using...

Asphalt and bitumen - testing for performance The stresses placed on modern asphalt and bitumen means that specialist equipment is essential to make sure performance specifications are met. As road traffic increases at a rapid pace and road safety becomes a priority issue, asphalt is put under increasingly higher stresses. For example, road surfaces are subject to compression, flexural tensions and tangential stresses: internal friction,...