Dutch researchers design highways that heal themselves

May 1, 2013

Researchers at the Delft University of Technology (TU Delft) in The Netherlands are paving the way to longer-lived roads with a special type of asphalt containing long steel fibers. Zoab, a highly porous asphalt concrete used commonly in The Netherlands, is used because water can drain through openings in the pavement. The problem is that …

Portable shields, top-level protection

Special Weapons and Tactics (SWAT) teams confront weapons of increasing deadliness in conflicts with terror suspects, mass shooters, criminals or rioters well versed in guns and gear. SWAT teams use equipment designed for high-risk situations, including urban close-quarters combat, hostage crises and barricaded suspects. The challenge for manufacturers of protective gear has been to achieve …