Background: Biological shielding of nuclear reactors has always been a great concern and decreasing the complexity and expense of these installations is of great interest. In this study, we used datolite and galena (DaGa) minerals for production of a high performance heavy concrete. Materials and Methods: Datolite and galena minerals which can be found in many parts of Iran were used i...

The history of the development Ultra-High Performance Concrete (UHPC) shear walls and current status today’s research as well future prospects are comprehensively collated. analysis process conclusive results present-day domestic international on UHPC highlighted. load displacement curves, hysteresis curves skeleton lines ultra-high performance concrete under different experimental loads collat...

Developments in nanomaterial technology have generated a strong research interest the construction industry aiming at enhancing properties of concrete. Many studies explored use engineered such as nano-silica, carbon nanotubes (CNT) and nanofibers cementitious composites. Recently, focused on Graphene Oxide (GO). is single atomic layer thick two-dimensional form graphite GO oxidized graphene wh...

For a variety of reasons, the concrete construction industry is not sustainable. First, it consumes huge quantities of virgin materials. Second, the principal binder in concrete is portland cement, the production of which is a major contributor to greenhouse gas emissions that are implicated in global warming and climate change. Third, many concrete structures suffer from lack of durability whi...

Ultra-high performance concrete (UHPC) is a developing concrete and today is increasing to interest using it in structures due to its advantages such as high-compressive strength, modulus of elasticity, highly durability and low-permeability. Therefore, it is necessary to provide models for prediction of nonlinear behavior of this material. This study is aimed to investigate the tension-stiffen...