Abstract
The paper highlights the application of binary geopolymer concrete (GPC) using Ground Granulated Blast furnace Slag (GGBS) and dolomite as source materials. It was observed that the GPC produced with GGBS and dolomite acquires compressive strength at an early stage when compared to GPC with other source materials. In order to enhance the ductility of GGBS-dolomite GPC, steel fibres were added at 0.25, 0.5 and 0.75% of the volume of concrete. Experimental and numerical investigations were conducted on steel fibre reinforced geopolymer concrete (SFGPC) beams under monotonic loading. Ten beams were cast and tested. Parameters such as modulus of elasticity, Poisson's ratio, and ductility ratio of GPC were compared with SFGPC and have found that SFGPC has advanced engineering properties. Stress block parameters were developed for SFGPC. Cracking behaviour, load-deflection characteristics and ultimate load capacity of the beam under monotonic loading are also highlighted.
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