Concrete is one of the materials that widely used in various structural works because it has advantages, especially high compressive strength and easy to form. However, concrete can also be damaged by physical, chemical, mechanical excessive loads. Damaged structures must repaired strengthened immediately prevent further damage lead failure. One for reinforcement Fiber Reinforced Polymer (FRP)....

In recent years, the Lamb wave analysis by the multi-channel analysis of surface waves (MASW) for concrete structures has been an effective nondestructive evaluation, such as the condition assessment and dimension identification by the elastic wave velocities and their reflections from boundaries. This study proposes an effective Lamb wave analysis by the practical application of MASW to concre...

We analyze the concrete security provided by a signature scheme described in a recent Internet Draft by McGrew and Curcio.

Because polymer-composite reinforcements are a new material in construction, the possibilities of their use load-bearing structures, including concrete beams, somewhat limited by existing regulations. The research work implemented this article is to study strength and stiffness cases where steel reinforcement tensile zone composite polymer compressive concrete. Concrete beams with combined obje...