Utilization of fly ash coming from a CFBC boiler co-firing coal and petroleum coke in Portland cement

Investigation on the hydration of CFBC fly ash

This paper examines the rheology, hydration kinetics and development of the compressive strength of cement mortars including nanosilica and fly ash. The contents of these materials and the superplasticizer dosage are related to different rheological and strength parameters. Effects on rheology were analysed through yield stress and viscosity. Calorimetry tests were carried out to assess the variations in cement hydration kinetics, and the maximum and minimum heat release rates were analysed. Compressive strength was evaluated at different ages up to 56 days. The equations presented in this paper make it possible to optimize mortar proportionings that fulfil required performance levels in both fresh and hardened states.

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J. Šimonı́k

Papers

The compressive strength of samples containing fly ash with high content of calcium sulfate and calcium oxide

The influence of organic additives on solidified FBC-p parameters