Mechanical Strength Study on C&amp;D Aggregates Replaced Concrete

M. Arun Kumar ,S. Velmurugan ,Prabakara

doi:10.21741/9781644901618-18

Mechanical Strength Study on C&D Aggregates Replaced Concrete

M. Arun Kumar , S. Velmurugan + Show 1 more

Open Access

https://doi.org/10.21741/9781644901618-18

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Abstract

Abstract. Recycled concrete was produced to overcome the problem of disposal of construction and demolition waste and lack of availability of natural materials. To improve the characteristics of recycled concrete, new treatments and suggestions were given by the researchers. This paper investigates the compressive strength of recycled aggregate concrete having the replacement of 0, 30, 40, 50 & 60% recycled coarse aggregates. The compressive strength of recycled concrete in water curing is compared with steam curing. The compressive strength of concrete is not much affected because of the use of large size recycled aggregates. The use of saturated dried surface large size recycled aggregates improves the strength of concrete.

Highlights

Day by day technology and innovations were improving, which helps mankind to save their energy
Many researchers suggested that the natural coarse and fine aggregates in the concrete shall be replaced with 25-30% of the C&D waste, which will not provide the greater difference in the strength aspects of the conventional concrete [4,5,6]
Natural coarse aggregates - NA, recycled coarse aggregates procured from concrete laboratory - RAL, recycled coarse aggregates procured from the demolition wastes - RAD, a combination of recycled coarse aggregates procured from concrete laboratory and demolition waste - CRA were tested

Summary

Introduction

Day by day technology and innovations were improving, which helps mankind to save their energy. To overcome the problem of lack of availability of natural materials and reduction of disposal wastes, the production of recycled concrete is the better solution. Many researchers suggested that the natural coarse and fine aggregates in the concrete shall be replaced with 25-30% of the C&D waste, which will not provide the greater difference in the strength aspects of the conventional concrete [4,5,6]. Loss in the recycled coarse aggregate concrete (RCAC) is the attached mortar of recycled materials [7]. The recycled aggregates that are obtained from the concrete laboratory wastes shown in fig. and the demolition waste of residential buildings These wastes are crushed using the hammer and heavy materials to separate the aggregates.

Description Cement Natural Recycled

Results and Discussion

Specific gravity

Conclusion