Use of Recycled Concrete Aggregates
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 7
Abstract
Use of RCA in concrete is beneficial for future use as well as environment can also be protected. The application of recycled aggregate has been started in a large number of construction projects of many European, American, Russian and Asian countries. According to past survey, countries are giving relaxation in the form of infrastructural law for use of recycled concrete aggregate. The amount of construction waste has been increased drastically from past few years, and environmental effect for recycling of the waste has consequently been increased. Recent technology has also improved the recycling process. In this fast developing world, recycling concrete aggregates plays a vital role to save the natural resources. The waste concrete is collected from demolished structure & crushed to obtain coarse aggregate; the different percentage (i.e. 0%, 25%, 50% & 75%) is used for preparing fresh concrete cubes & beams. The RCA has higher compressive strength compared to NA when used up to certain percentage. Even the slump obtained for RCA is more than NA. RCA has close proximity to NA in terms of compressive & flexural strength. At last we can conclude that use of RCA up to 50% can be done to obtain good quality concrete.
Authors and Affiliations
Sayyam D. Raigandhi, Sagar S. Mane, Shripad B. Kore
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