When bridges, dam walls and other structures made of concrete are streaked with dark cracks after a few decades, the culprit is AAR: the alkali-aggregate reaction. AAR damages concrete structures all ...

Large concrete structures need to be regularly tested for defects that may compromise their stability. While acoustic tests performed by certified inspectors are usually the inspection method of ...

A pair of airmen inspect a crack on the runway to determine its severity at Ellsworth Air Force Base, S.D., July 19, 2013. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released) The ...

The Korea Institute of Civil Engineering and Building Technology (KICT) has announced the development of an effective structural strengthening method using a noncombustible carbon textile grid and ...

Given the survival of ancient structures, this may seem curious. The critical difference is the modern use of steel reinforcement, known as rebar, concealed within the concrete. Steel is made mainly ...

Materials researchers from the Block Research Group at the ETH Zurich, together with architects supermanoeuvre, have revealed a prototype for an ultra-thin, sinuous concrete roof system with an ...

The precast and prefabricated elements made of concrete (such as slabs, pillars, beams and walls) are part of the constructive process known as modular construction. A construction methodology carried ...