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Computers and Concrete
  Volume 19, Number 6, June 2017 , pages 737-744

Probabilistic modeling of geopolymer concrete using response surface methodology
Parthiban Kathirvel and Saravana Raja Mohan Kaliyaperumal

    Geopolymer Concrete is typically proportioned with activator solution leading to moderately high material cost. Such cost can be enduring in high value added applications especially when cost savings can be recognized in terms of reduction in size of the members. Proper material selection and mix proportioning can diminish the material cost. In the present investigation, a total of 27 mixes were arrived considering the mix parameters as liquid-binder ratio, slag content and sodium hydroxide concentration to study the mechanical properties of geopolymer concrete (GPC) mixes such as compressive strength, split tensile strength and flexural strength. The derived statistical Response Surface Methodology is beleaguered to develop cost effective GPC mixes. The estimated responses are not likely to contrast in linear mode with selected variables; a plan was selected to enable the model of any response in a quadratic manner. The results reveals that a fair correlation between the experimental and the predicted strengths.
Key Words
    geopolymer concrete; slag; mechanical properties; response surface methodology; box-behnken design
Parthiban Kathirvel and Saravana Raja Mohan Kaliyaperumal: School of Civil Engineering, SASTRA University, Thanjavur, 613401, India

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