STRENGTH AND PERMEABILITY CHARACTERISTICS OF FIBER REINFORCED HIGH PERFORMANCE CONCRETE WITH RECYCLED AGGREGATES

Concrete is not an environmentally friendly material due to its destructive resource- consumption nature and severe environmental impact. However it is one of the major construction materials being utilized globally. For development, the concrete industry has to plan and implement the better use of recycled materials in concrete making. Even though the utilization of recycled aggregates in the concrete industry has been taking place for many years, the promotion of this recycled material as an alternative has never been easy in the industry. Though lot of research has been reported on RAC, very little information is available about the effect of using recycled aggregate in the production of Fiber Reinforced High Performance Concrete (FRHPC). This paper presents the results of experimentation conducted to evaluate the strength and permeability characteristics of FRHPC produced with recycled coarse and fine aggregates. Three types of fibers viz., steel, glass and poly propylene fibers are used in the production of FRHPC. Compressive, tensile, flexural and shear strengths of Fiber Reinforced High Performance Recycled Aggregate Concrete (FRHPRAC) have been evaluated from the experimentation. Chloride ion permeability has been determined as measure of permeability of FRHPRAC. The results of the study show that recycled coarse and fine aggregates can be successfully used in the production of fiber reinforced high performance concrete.