Studies on Effect of Recycled Aggregate on Deflection Characteristics of RC Slab. Issue 1 (July 2021)

• Record Type: Journal Article
• Authors: Poongodi, K.; Revathi, P.; Murthi, P.
• Is Part Of: IOP conference series. Volume 822:Issue 1(2021)
• Publication Date: 2021-07
• Subjects: Recycled concrete aggregate -- Deflection characteristics -- Simply supported slab -- Deflection -- Two point loading; Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/822/1/012035
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: Substantial utilization of natural aggregates leads to the depletion of the naturally available resources. Hence an alternative approach is to utilize the recycled concrete aggregate (RCA) from the construction and demolition waste in the production of concrete and also in the prevention of dumping this waste in cultivable landfill. On the other side, codal provisions available for the predication of deflection in reinforced concrete one-way slab using effective moment of inertia (leg) were not comparable with the experimental values. Hence in the present study, it is proposed to study the load and deflection characteristics of simply supported slabs by varying the percentage of RCA content as 0 %, 50 % and 100 % under two point loading. Further, the work is extended to compare the deflection values obtained from experimental studies to the computed deflection values based on the IS 456:2000, ACI 318:2008 and BS: 8110. From the results, it is inferred that the replacement of natural aggregate with RCA does not affect the deflection characteristic of RC slab. Moreover, the computed deflection based on IS: 800, ACI and BS codal provisions does not match with the experimental deflection.