Structural performance of hybrid fibres incorporated Re-Cycled aggregate RC slab. (2023)

• Record Type: Journal Article
• Authors: Vinod Kumar, M.; Jaideep, C.; Siddaramaiah, Y.M.; Muthukannan, M.
• Is Part Of: Materials today. Volume 80:Part 2(2023)
• Page Start: 597
• Page End: 603
• Publication Date: 2023
• Subjects: Fibre Reinforced Concrete (HFRC) -- Steel Fibres -- Polypropylene Fibres -- Re-Cycled Aggregate (RCA); Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.11.055
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Concrete is a material that mainly consists of coarse aggregate and mortar. The forming of cracks is an existing problem in Reinforced Concrete (RC) slab. In this research, hybrid fibres namely steel and polypropylene fibres in suitable combinations are identified and incorporated to concrete to regulate the formation and development of cracks in RC slabs. In Hybrid Fibre Reinforced Concrete (HFRC), 1 per cent of steel fibre and 0.30 per cent of polypropylene fibre is added, which is the effective amount of reinforced concrete added based on information obtained from the various research studies. In addition, now-a-day use of re-Cycled Aggregate (RCA) is strongly recommended to address the lack of traditional coarse aggregate. By using RCA as a partial substitution of coarse aggregate with an inclusion of 1 % of steel fibre and 0.30 % of polypropylene fibre to the concrete volume in the study, a typical approach is recommended. One-way type of RC slab, 1350 mm × 500 mm × 100 mm in dimension, is cast and tested in the laboratory in compliance with the Indian standard code IS 456: 2000 [1] . The compressive strength of concrete, load carrying capacity, load versus deformation characteristics, stiffness and ductility relationship properties of the RC slabs was compared and discussed between control specimens and 0 to 50 percent of partially substituted RCA specimens.