REVIEW PAPER ON STUDY USING DEMOLISHED CONCRETE FOR PAVEMENT CONSTRUCTION (KEY IJP************266)

• Mintu Singh,Shivani

Abstract

Recycled aggregates consist of crushed, graded inorganic particles processed from the material that have been used in the constructions and demolition debris. The aim of the present study is to determine the strength characteristic of recycled aggregates for the application in concrete pavement construction. The scope of the thesis is to determine and compare the compressive strength, flexural strength and sulphate resistance of concrete by using different proportions of recycled aggregates. The investigations were carried out for workability test, compressive strength test, flexural strength test and sulphate resistance test. A total of five mixes of M-40 grade concrete with replacement of coarse aggregates with 0%, 10%, 20%, 30% and 40% recycled coarse aggregates were studied. The water cement ratio was kept constant at 0.38. The workability of concrete in general was decreased with the increase in recycled aggregates in concrete. For the strength characteristics, the results showed that the strengths of recycled aggregate concrete were comparable to the strengths of natural aggregate concrete.