A Model for Predicting the Compressive Strength of Structural Fly Ash Concrete

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Title: A Model for Predicting the Compressive Strength of Structural Fly Ash Concrete

Author(s): F. De Larrard

Publication: Special Publication

Volume: 153

Issue:

Appears on pages(s): 99-108

Keywords: compressive strength; fly ash; mathematical models; pastes; Materials Research

Date: 6/1/1995

Abstract:
Presents an adaptation of a previous model (the generalized Feret's law with account for the Maximum Paste Thickness) for structural fly ash concrete. A kinetics term is introduced to predict the compressive strength development between seven and 365 days. On a set of data taken from the literature, the mean accuracy of the model is equal to 2.1 MPa. Moreover, the formula only incorporates a limited number of parameters, which can easily be determined from standard mortar or concrete tests. Therefore, the model appears to be suitable for a computer-aided concrete proportioning software.