MIT News » Researchers at the MIT Concrete Sustainability Hub have proposed a new approach to long-term highway preservation that abandons rigid maintenance schedules in favor of a system that accounts for a number of factors, from the road’s design, materials, deterioration rate, and more. Their method then employs an algorithm to determine the most efficient timing and method to preserve the highway surface.
Equipment World » Hurricane Florence turned large sections of Interstates 95 and 40 into rivers, cutting off major north-south and east-west connections in the eastern part of the state. A week later, after flood waters receded, work crews drilled holes in pavement near two flooded bridges at the Lumber and Black rivers. The foam was injected into the holes. It hardens and stabilizes the ground beneath the road making a permanent repair to any holes that have formed underneath, NCDOT says.
Construction Week » Hyperloop Transportation Technologies (Hyperloop TT), the company bringing hyperloop to Abu Dhabi, has reached an agreement to build China’s first ultra-high-speed transportation network. The US-based company, which has an office in Abu Dhabi, will set up a 10km track in a mountainous stretch of Tongren, a city in China’s southwestern Guizhou Province.
Roads & Bridges » Due to the collapse of a newly installed pedestrian bridge built with accelerated bridge construction (ABC) methods at FIU, questions have been raised regarding the construction methods done on the bridge. Experienced professionals within the ABC realm are weighing in on their perspective of the incident as it relates to accelerated construction methods.
Press & Sun Bulletin » Within three years, Binghamton University and Rutgers University researchers hope to perfect a fungus — rather than a bacteria — that will organically heal cracks that develop in concrete. Moisture that seeps in would germinate the fungus, which would create mineral deposits that could fill cracks even larger than those used in the bacteria experiments.