2026-05-28T13:17:38Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/194352026-02-03T10:56:23Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Sanfélix, Susana G. author Zea-Garcia, Jesus D. author Londono-Zuluaga, Diana author Santacruz-Cruz, María Isabel author Gómez-de-la-Torre, María de los Ángeles author Kjøniksen, Anna-Lena author 2020-03-24 Microencapsulated phase change materials (MPCM) incorporated in buildings walls can reduce indoor temperature fluctuations, conserving energy and enhancing thermal comfort. MPCM were incorporated in calcium sulphoaluminate cement (CSA) at high concentrations to achieve a significant effect on the thermal properties. The cement hydration development was studied by isothermal calorimetry and laboratory X-ray powder diffraction (LXRPD). The hydration mechanism was not affected by the addition of MPCM. In order to obtain homogeneous mortars in the presence of MPCM, a superplasticizer (SP) was used. However, the SP causes a significant delay of the hydration. Although the mineralogical composition of the hydrated pastes did not change with the addition of MPCM, the mechanical strengths decrease dramatically. This decrease is well described by the Bolomey equation, assuming MPCMs act as air voids. This is a physical effect due to the high volume of MPCM, and not due to a change in the hydration chemistry. https://hdl.handle.net/10630/19435 https://doi.org/10.1016/j.cemconres.2020.106039 Cemento Hydration development and thermal performance of calcium sulphoaluminate cements containing microencapsulated phase change materials