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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Influence of different amount of fly ash for early age concrete containing Swedish cement - Part II: Calculation of form stripping times and the risk for early freezing for different amounts of fly ash
Author(s): Sofia Utsi, Jan-Erik Jonasson
Appears on pages(s): 93-108
Keywords: Fly ash, heat of hydration, strength growth, early age concrete, hardening control
Abstract:A recently presented numerical tendency model has been applied on an assumed civil engineering structure. With the model parameters for heat and strength development calculations in early age period can be calculated. This paper shows the possibility to evaluate e.g. form removal times and estimations of need for protection against early freezing for concrete mixes containing fly ash in different amounts, with different water-to-cement ratios and at different outer conditions. The tendency model has shown to be a useful tool for production planning for concrete containing fly ash.According to the performed calculations, any replacement of cement with fly ash will significantly influence the young concrete properties. The effect on delayed strength growth increases with the increased amount of fly ash and will also increase for lower temperatures. In addition, the effect from fly ash increases at higher water-to-cement ratios.
Norwegian Concrete Association, International Partner Access.
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