@misc{10481/106410,
year = {2025},
month = {9},
url = {https://hdl.handle.net/10481/106410},
abstract = {Using additional binders such as hydrated lime in cement-based systems implies changes in the development of
chemical processes such as hydration and carbonation, having a clear impact in the rheological and mechanical
properties of the material. This paper aims to study the impact of different amounts of hydrated lime (0, 50 %,
and 66.7 % of lime as binder by volume), different curing ages (from 7 to 180 days), and evolution of the
exposure front for the chemical processes in cement-based mortars. Moisture diffusion and mercury intrusion
porosimetry (MIP) were performed to obtain information related to porosity, while phenolphthalein and thermogravimetric tests allowed the determination of the carbonation rate and the analysis of the temporal evolution
of C-S-H, AFm, AFt, portlandite, and calcium carbonate phases, respectively. The results evidenced that adding
lime to cement-based mortars accelerated the carbonation rates at long-term. Cement-lime-based mortars
exhibited a higher carbonation efficiency, as evidenced by significant increases in the calcium carbonate
quantities compared to portlandite after 28 days of curing. However, at early stage, pure cement-based mortars
showed a faster penetration of CO2 and subsequent carbonation due to the low amount of available portlandite
and early exposure to an environment prone to carbonation.},
organization = {R&D Unit Institute for Sustainability and
Innovation in Structural Engineering (ISISE) - UID/
04029/I},
organization = {Associate Laboratory Advanced Production and Intelligent Systems ARISE - (LA/P/0112/2020)},
organization = {FCT Fundação para a Ciência e a Tecnologia (2020.07964.BD, 2022.06879.PTDC)},
organization = {European Union’s Horizon 2020 - Marie Sklodowska-Curie project SUBLime (no. 955986)},
organization = {MCIN/
AEI/10.13039/501100011033 - ERDF (PID2021.125305NB.I00)},
publisher = {Elsevier},
keywords = {Hydrated lime},
keywords = {Cement-based mortars},
keywords = {Carbonation},
title = {Influence of lime on the evolution of cement mortars carbonation and hydration processes},
doi = {10.1016/j.conbuildmat.2025.142729},
author = {Briceño, Carolina and Azenha, Miguel and Vasconcelos, Graça and Rodriguez-Navarro, Carlos and B. Lourenço, Paulo},
}