Asphalt milling, paving & compaction

A new version of TecnoTest’s computerised work station for daily, large-scale testing of concrete cubes was installed in Doha, Qatar in January this year. The KC 400/WG has been put to work for ASHGHAL, Qatar’s public works department. TecnoTest improved the work station with input from customers such as Istituto Giordano of Bellaria and ANAS, both of which have been using the original version for many years. The KC 400/WG benefits from improved software, operating system and interface and a hydraulic contr

James Cox and Sons, based in California, has enhanced its equipment range in order to offer the complete Superpave solution. The Hamburg Wheel Tracker, Superpave Gyratory Compactor and new four point bending fatigue machine join its existing range. This move comes at a time when the California Department of Transportation (Caltrans) is transitioning to the Superpave method for pavement design. With the asphalt testing machine market in the States dominated by two large companies, James Cox and Sons’ general

Cooper Research Technology has added two new machines to its range of cold weather testing solutions: a Disc Shaped Compact Tension (DCT-ASTM D7313) and Semi-circular Bending Test (SCB). These join Cooper’s Asphalt Pavement Thermal Testing Systems (EN12697-46 or AASHTO TP10) and Prall Studded Tyre Wear Tester (EN 12697-16).

CONTROLS Group will be demonstrating its new range of dynamic asphalt testing machines, launched late last year, at Munich’s bauma exhibition in April this year. All CONTROLS pavement testing machines now come under the new division PAVELAB SYSTEMS. CONTROLS will also be unveiling a new range of AUTOMAX models for testing construction materials.

This month we look at how pavement testing technology is responding to extremes of temperature, showcase concrete testing in Doha and look at how water drops could help identify delaminated bridge decks - Kristina Smith reports One of the biggest challenges that pavement engineers face is how to design for extremes of temperature. Designing for cold weather can result in problems at higher temperatures – and vice versa. In Scandinavia, generally a cold climate, they are facing this problem. In the summer,