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Advances in Concrete Construction   Volume 8, Number 1, August 2019, pages 33-37
DOI: https://doi.org/10.12989/acc.2019.8.1.033
 
Flexural studies on reinforced geopolymer concrete beams under pure bending
C. Sreenivasulu, J. Guru Jawahar and C. Sashidhar

 
Abstract     [Full Text]
    The present investigation is mainly focused on studying the flexural behavior of reinforced geopolymer concrete (RGPC) beams under pure bending. In this study, copper slag (CS) was used as a partial replacement of fine aggregate. Sand and CS were blended in different proportions (100:0, 80:20, 60:40 and 40:60) (sand:CS) by weight. Fly ash and ground granulated blast furnace slag (GGBS) were used as binders and combination of sodium hydroxide (8M) and sodium silicate solution were used for activating the binders. The reinforcement of RGPC beam was designed as per guidelines given in the IS 456-2000 and tested under pure bending (two-point loading) after 28 days of ambient curing. After conducting two point load test the flexural parameters viz., moment carrying capacity, ultimate load, service load, cracking moment, cracking load, crack pattern and ultimate deflection were studied. From the results, it is concluded that RGPC beams have shown better performance up to 60% of CS replacement.
 
Key Words
    reinforced geopolymer concrete beams; copper slag; two-point loading; flexural parameters
 
Address
C. Sreenivasulu: Department of Civil Engineering, Jawaharlal Nehru Technological University, Anantapur, India
J. Guru Jawahar: Department of Civil Engineering, Annamacharya Institute of Technology and Sciences, Tirupati, India
C. Sashidhar: Department of Civil Engineering, Jawaharlal Nehru Technological University, Anantapur, India
 
References
    -acc0801004-
 

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