Journal Title : International Journal of Modern Trends in Engineering and Science
Paper Title : Experimental Studies On Self Compacting Geopolymer Concrete Containing Ggbs-Bottom Ash
Author’s Name : M.Jenifer Ramya , S. Manishankar
ISSN no: 2348-3121
Page no: 24-30
Abstract – Selfcompacting concrete (SCC) represents one of the most outstanding advances in concrete technology. Self-compacting concrete is a flowing concrete mixture that is able to consolidate under its own weight. The highly fluid nature of SCC makes its suitable for placing in difficult situation and in sections with congested reinforcement. In this paper experimental studies are carried out to understand the fresh and hardened properties of Self Compacting Concrete (SCC) in which cement is replaced by Ground Granulated Blast Furnace Slag (GGBS) and Bottom Ash (BA) (i.e. Geo polymer concrete) in various proportions. The workability properties such as filling ability, passing ability and resistance to segregation were assessed using slump flow, T-50cm slump flow, V-funnel, L-Box and J-ring test methods. It was found that the essential workability requirements for self-compact ability according to EFNARC were satisfied. The proportions of GGBS: BA in which cement replaced is 100:0, 75:25, 50:50, 25:75 and 0:100. The alkaline liquid used in geo polymerization was the combination of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) was 2.The Molarity of NaOH was considered as 8M. Super plasticizer GLENIUM B233 is used to maintain workability with constant Water-Binder ratio. From the test result it was observed that compressive strength was achieved at early ages under ambient curing was selected.
Keywords – Geopolymer concrete, Self-compacting concrete (SCC), Granulated Blast Furnace Slag (GGBS), Bottom ash, Alkaline liquid (NaOH,Na2SiO3), compressive strength, split tensile strength, flexural strength and modulus of elasticity.