Features

New technologies to make rubber modification of asphalt are under development and testing. But political will is the real key to diverting old tyres from landfill - Kristina Smith reports. A new way to introduce end-of-life tyre rubber into asphalt mixes could be the key to diverting more tyres away from landfill, according to Dr Davide Lo Presti, principal research fellow at the Nottingham Transportation Engineering Centre (NTEC) at the University of Nottingham.

Asphalt plants are industrial units capable of producing asphalt on a full-scale basis An asphalt plant has several key functions and is designed to accurately dose the aggregates and asphalt to ensure the correct proportions, as established in the mix. The plant should dry and heat the aggregates completely, regardless of their nature and characteristics, in order to obtain perfect adhesiveness with the asphalt binder. The drying system’s combustion gases have to be filtered so that fine aggregates tran

Dr Kyung-Soo Yoo, an IRF Fellow (Class of 1979) and one of the chief architects behind Korea's world-class road connectivity programs has been nominated to receive IRF's most distinguished individual honour

A major tunnel construction project has been carried out in Mexico, setting a technological precedent for Latin America . Mexican materials giant CEMEX took part in the construction of the Coatzacoalcos Underwater Tunnel in Veracruz, Mexico. This innovative project features large tunnel bores and utilised a complex construction process. As a result of these technical challenges CEMEX was required to design and deliver special concretes so as to allow the construction of the different structures needed to