Computers and Concrete

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Prediction of product parameters of fly ash cement bricks using two dimensional orthogonal polynomials in the regression analysis

  • Chakraverty, S. (B.P.P.P. Division, Central Building Research Institute Roorkee) ;
  • Saini, Himani (B.P.P.P. Division, Central Building Research Institute Roorkee) ;
  • Panigrahi, S.K. (B.P.P.P. Division, Central Building Research Institute Roorkee)
  • Received : 2007.04.12
  • Accepted : 2008.07.30
  • Published : 2008.10.25
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Abstract

This paper focuses on the application of two dimensional orthogonal polynomials in the regression analysis for the relationship of product parameters viz. compressive strength, bulk density and water absorption of fly ash cement bricks with other process parameters such as percentages of fly ash, sand and cement. The method has been validated by linear and non-linear two parameter regression models. The use of two dimensional orthogonal system makes the analysis computationally efficient, simple and straight forward. Corresponding co-efficient of determination and F-test are also reported to show the efficacy and reliability of the relationships. By applying the evolved relationships, the product parameters of fly ash cement bricks may be approximated for the use in construction sectors.

Keywords

References

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