PARTIAL REPLACEMENT OF RECYCLED AGGREGATE WITH COARSE AGGREGATE

Year of Publication
upload
Publication Type
Abstract
This project is aim at developing high strength concrete from recycled aggregates, with the specific objectives determine the benefit / cost ratio in the development of high strength concrete from recycled aggregates, determine the compressive strength of the blended concrete when waste concrete is recycled, help control environmental pollution, waste concrete is beneficial and necessary from the viewpoint of environmental preservation and effective utilization of resources, determining the design of experiment of the blended concrete.
The results of the project were generated by applying different scope such as specific gravity, Particular size distribution, slump test of fresh concrete, flexural and compressive strength. The compressive strength for 5% 10%, 15% and 20% replacement of coarse aggregate by waste coarse concrete were compared with conventional/natural concrete.
It is seen from the figure above that the compressive strength of the cube increases on 5%, 10%, replacement and reduces on further increase in 15%, 20% and 25% recycled crushed coarse aggregates.
Tests conducted on demolished coarse aggregates and results compared with natural coarse aggregates are satisfactory as BS Standard, the test results of compressive strength shows that the optimum replacement of fine aggregate is achieved at 10% replacement of fine aggregate by demolished concrete waste compared to the respective conventional concrete strength, the possibility exists for the partial replacement of fine aggregate with demolished concrete waste which is produced during demolition of construction site.
Supervisor(s)
co-supervisor