2026-06-03T14:36:35Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/225132026-02-03T11:07:08Zcom_10630_2254col_10630_37953

Shirani, Shiva Cuesta-García, Ana María Morales-Cantero, Alejandro Gómez-de-la-Torre, María de los Ángeles Olbinado, Margie P. García-Aranda, Miguel Ángel 2021-07-02T09:09:31Z 2021-07-02T09:09:31Z 2021-05-24 Cement and Concrete Research 147 (2021) 106499 https://hdl.handle.net/10630/22513 10.1016/j.cemconres.2021.106499 Belite cements (BCs) could be a more sustainable binder than Portland cements (PCs) but adequate knowledge of the hydration features has still to be built. In particular, the mild curing hydration temperature effects have been extensively studied for PCs but not for BCs. This research was triggered by a previous work reporting improved mechanical strengths of BCs at higher curing temperatures. Here, we report the hydration characteristics of a BC at 20, 40 and 60ºC and compared to those of a PC. We have corroborated previous findings and used a multi-technique approach including Rietveld phase analysis, thermal analysis, calorimetry, silicon MAS-NMR, mercury intrusion porosimetry and chiefly synchrotron X-ray microtomography, to thoroughly understand the different behavior. In a nutshell, the improved mechanical performances at mild curing temperatures for BCs are mainly due to a much larger belite degree of reaction, with lower porosity coarsening of belite cements also playing a role eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Química orgánica Microestructuras Cemento Materiales de construcción Influence of curing temperature on belite cement hydration: a comparative study with Portland cement journal article