AN EXPERIMENTAL STUDY ON COATED REINFORCEMENT BARS AND RECYCLED AGGREGATE IN CONCRETE WITH DIFFERENT EXPOSURES
Author(s):
R.S. LENIN, M. MANIKANDAN
Keywords:
Hot dip galvanizing, recycled concrete aggregate, quarry dust, beams, bendings, concrete deflection
Abstract
The objective of this study is to compare the ultimate load carrying capacity of conventional reinforced concrete beams with that of investigations specimen incorporated with coated reinforcement and partially with recycled aggregate and quarry dust. A noval technique of coated reinforcement delays the onset of corrosion with enhanced durability of structures results show that not even a film of corrosion (while rust) can be seen in the investigation specimen. Main aim of this work will be on the ultimate load carrying capacity of beams. The ultimate load carrying capacity of beams are influenced by various parameters such as material properties, geometry, influence of environments, cover to the reinforcement, were ability permeability, compaction, consolidation, water cement ratio and so on. Those works investigates on the incorporation of the coated reinforcement, partially with recycled aggregates and the quarry dust partially with admixtures in reinforced concrete beams. The usage of coating technique for reinforcement is a widely accepted innovative technique for reducing corrosion in concrete structure. Epoxy coated and Hot dip galvanizing is the two popular methods of coating to reinforcement. The galvanization affords sacrificial protection to exposed steel, because of the anodic native of zinc compared to steel, when embedded in concrete, zinc is passivated. Due to scarcity of natural river sand and mining of coarse aggregates, used of the how is to find on alternative without changing the performance of product. All experiments are carried out in reinforced concrete beams incorporated with partial replacement (50%) of coarse aggregate with recycled aggregate and (50%) quarry dust for natural river sand. Comparing it with controlled specimen for ultimate load carrying capacity. In order to provide good waste management practice, we have used construction demolition waste like, existing old building, bridges and foot paths. RCC beams are casted with zinc coated reinforcement along with partially recycled aggregate. The RCC beams are placed in potable water, sewage treatment plant and sea water. Tests are carried out in 28 days, three months, six months and nine months. The main investigated parameter is
Article Details
Unique Paper ID: 149703

Publication Volume & Issue: Volume 7, Issue 1

Page(s): 456 - 472
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Volume 7 Issue 3

Last Date 25 August 2020

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