General Science and Philosophy

   

Flexural Behaviour of Low Calcium Fly ash Based Geopolymer Concrete Beams

Authors: S.Kumaravel, S.Thirugnanasambandam

The production of Ordinary Portland Cement (OPC) causes pollution to the environment, due to the emission of CO2. Geopolymer concrete (GPC) is an alternate material for OPC. Low calcium fly ash, a by-product from the coal industry is widely available in the world. Silicate and alumina are rich in fly ash and hence reacts with alkaline solution to produce alumina silicate gel that binds the aggregate to produce a good concrete. The designed compressive strength of concrete is 50 N/mm2. A total of four beams is cast over an effective span of 3000 mm and tested up to failure under static loads. The flexural behaviour of GPC beams and OPC beams are examined. The load displacement response of those beams are obtained and compared with the theoretical results. The deflections at different stages including service load and ultimate load stage are higher and exhibit increased flexural strength for GPC beams.

Comments: 7 Pages.

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Submission history

[v1] 2014-05-08 03:55:58

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