<p>This research work focused on the measurement of the variation in temperature and heat flow of cement pastes when hydrated, by means of a calorimeter of own design. First, the calorimeter with which the measurements were made, was manufactured. Then, the volumes were chosen, with their respective mix design, to which the measurement was made. Two samples were used, with volumes of 42 cm3 and 116 cm3, with a water/cement ratio of 0.45. Next, the temperature measurement was made during the hydration of the cement, to finally establish, through thermal and mathematical models, the evolution of heat flow. Each measurement lasted approximately 26 hours. After the measurements were taken, it was found that, at different sample volumes, the temperature varies. Similarly, it was noted that heat dissipation occurs rapidly due to the size of the sample.</p>
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