The inferior mechanical properties and durability of conventional lightweight concrete restrict its wider application. This study intended to design a novel ultra high-performance (L-UHPC) using mathematical approach, with view achieving low density excellent performance. Two materials (i.e. micro-sized glass microsphere expanded shale aggregates) were introduced in the mix L-UHPC. statistical ...

The paper presents a method to establish performance-based fibre design of high-strength micro steel fibres for ultra-high-performance concrete (UHPC). considers effects layout, orientation, and type loading (quasi-static cyclic) expands the current approach using experiences suitability testing results. is based on so-called utilization rate, which determined via pullout tests in UHPC under qu...

Reducing waste material plays an essential role for engineers in the current world. Nowadays, recycled materials are going to be used in order to manufacture concrete beams. Previous studies concluded that the currently proposed formulas to predict the flexural and shear behavior of the reinforced concrete beams were not appropriate for those manufactured by recycled materials. This study aims ...

Corrosion of steel is one of the most important potential dangers and threats in concrete structures. Corrosion of steel embedded in reinforced concrete plays a key role in reducing the strength and durability of reinforced concrete. Several studies have proposed that alternative approaches to enhancing the performance of reinforced concrete and its resistance to corrosion. In this study, the r...

This research paper describes the study of combined effect of Fly Ash (FA) and Rice Husk Ash (RHA) on properties of concrete as partial replacement of Ordinary Portland Cement (OPC). These by-products are having high pozzolanic reactivity. In this research, the composition of mix was used with 10% RHA along with 10, 20 and 30% FA as partial replacement of cement. In this study, the compressive ...