With hundreds of thousands of the nation’s bridges nearing the end of their design lives, cash-strapped states are searching for innovative solutions to repair and replace their decaying structures. One answer may lie in the same material that delivered the stealth aircraft, according to two researchers at the University of Missouri-Rolla.
Composite fiber-reinforced polymer (FRP), first developed for use in the aerospace and automotive industries, may be able to help nurse the rapidly aging national highway infrastructure beyond its intended lifespan. Dr. Antonio Nanni, the Vernon and Maralee Jones Distinguished Professor of Civil Engineering at UMR, and Dr. John Myers, assistant professor of civil engineering at UMR, are researching how the composite materials can be used to rehabilitate existing structures as well as to construct new bridges.
The researchers are treating five decaying bridges in rural Missouri with a corrosion-resistant bandage of sorts made of this material. Like a bandage, the composite material is lightweight and flexible. Strips of the material can be wrapped around pillars or wallpapered on lengths of concrete to strengthen the original structure. These composite materials combine the strength of aramid, carbon and glass fibers with the stability of the polymer resins.
Intelligent wheelchairs, predictive prostheses
20.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA
Jelly with memory – predicting the leveling of com-mercial paints
15.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...
The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...
At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...
At the ILA Berlin, hall 4, booth 202, Fraunhofer FHR will present two radar sensors for navigation support of drones. The sensors are valuable components in the implementation of autonomous flying drones: they function as obstacle detectors to prevent collisions. Radar sensors also operate reliably in restricted visibility, e.g. in foggy or dusty conditions. Due to their ability to measure distances with high precision, the radar sensors can also be used as altimeters when other sources of information such as barometers or GPS are not available or cannot operate optimally.
Drones play an increasingly important role in the area of logistics and services. Well-known logistic companies place great hope in these compact, aerial...
16.03.2018 | Event News
13.03.2018 | Event News
08.03.2018 | Event News
16.03.2018 | Earth Sciences
16.03.2018 | Physics and Astronomy
16.03.2018 | Life Sciences