2.3.5. Calorimetry

According to the squeeze flow test, the samples with cement type CPV were prioritized. To evaluate the rate of hydration reactions of the mortars, the calorimetry technique (ASTM C1679-17) [30] was used, being tested in two dosages, only in the CPV, with the substitutions of 0% and 30%, subjected first to consistency and later to the calorimeter, in amounts of 111.9 g and 111.8 g, respectively. The cement type CPV was used because it does not contain added blast furnace slag and/or pozzolana in the composition, and it contains calcium sulfate and carbonate material in the limit of up to 10% ABNT 16697 [22]. This makes it easier to identify the changes caused by the residue next to the folder. In addition, it was easily acquired in the local market. This cement is used for prefabricated parts when high initial strength is required.
