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.本数据集针对多种水硬性胶凝材料（hydraulic binders），以及煤与生物质按4:1比例流化燃烧产生的粉煤灰（CC-BMA）对砂浆水化过程中水化热发展的影响展开研究。研究选取霍多宁电厂（ČEZ EP a.s., 捷克）的底灰与粉煤灰，评估其用于建筑领域的水化性能；同时探究了粉煤灰粉磨对水化热发展的影响。此外，本研究还测试了三类砂浆：分别以硅酸盐水泥（Portland cement）、Sorfix，以及基于煅烧黏土的无熟料替代3C胶凝材料（3C binder）制备的试样。量热测试依据ČSN EN 196-9标准，采用半绝热量热仪（semi-adiabatic calorimeter）完成；第二种对比测试方法为在封闭杜瓦瓶（Dewar vessels）体系中，监测混合浆体水化过程的温度演化。研究结果显示，硅酸盐水泥砂浆在72小时时的水化热最高。采用3C胶凝材料与Sorfix胶凝材料制备的无熟料砂浆，其水化热的主要增长阶段出现在测试初期，源于游离石灰与硬石膏的水化反应。添加CC-BMA粉煤灰的砂浆水化热增幅较低，且细度更高的粉煤灰对应更高的水化热；而添加CC-BMA床底灰的砂浆在整个测试周期内未发生任何水化反应。