Effect of mixture proportions on the drying shrinkage and permeation properties of high strength concrete containing class F fly ash

This paper presents an experimental study on the effect of mixture proportions on the drying shrinkage and permeation properties of high strength concrete containing large volume of local class F fly ash

Pradip Nath; Prabir Kumar Sarker

2013

Scholarcy highlights

  • Concrete is the most common construction material, its durability is still a major area of study, especially for its use in aggressive environments
  • This paper studied the effects of different mixture proportions on the drying shrinkage and permeation properties of high strength concrete containing Class F fly ash sourced from Western Australia
  • The fly ash concretes were more workable in terms of slump than the control concretes in both series of Amount of Superplasticizer
  • The strength of the fly ash concretes of series B decreased when fly ash was used in place of cement with constant w/b ratio and amount of total binder
  • The trend of strength development in the fly ash concretes is in accord with that reported in the literature
  • Concrete mixtures were designed with and without adjustments in the water to binder ratio and the total binder content to take into account the incorporation of fly ash up to 40% of total binder
  • High-strength concretes designed with 30% and 40% cement replacement by class F fly ash were studied
  • Fly ash concretes required less superplasticizer than the corresponding Ordinary Portland Cement concretes for the same value of slump

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