Dataset for article: Studium metod měření hydratačního tepla popílků ze spoluspalování biomasy a alternativních sulfátovápenatých pojiv

In this dataset, the effect of various hydraulic binders and fly ashes from fluidized combustion of a coal and biomass mixture (CC-BMA) in a 4:1 ratio on the development of the hydration heat of mortars during hydration was investigated. Bottom and fly ash from the Hodonín power plant (ČEZ EP a.s., CZ) were selected, and their hydration capacity for possible use in construction was assessed. At the same time, the effect of ash grinding on the development of hydration heat was studied. Mortars made of Portland cement, Sorfix and an alternative clinker-free 3C binder based on calcined clays were also measured. Calorimetric measurements were carried out using a semi-adiabatic calorimeter according to the ČSN EN 196-9 standard. A second comparative method was the measurement of temperature evolution during hydration of mixtures in a system of closed Dewar vessels. It was found that the mortar with cement reached the highest hydration heat after 72 hours. For mortars with the clinker-free 3C binder and Sorfix binder, the main increase in hydration heat was observed at the beginning of the measurements due to the hydration of free lime and anhydrite. Mortars with CC-BMA fly ash recorded a low increase in hydration heat, with the finer ash achieving a higher hydration heat. In mortars with CC-BMA bed ash, no hydration reactions occurred during the measurement.