Kowalski, R. and Wróblewska, J. 2025. Strains, thermal relaxation and strength loss of prestressing steel at fire temperature. Guidance on the practical use of the Eurocode 2-1-2 model. Archives of Civil Engineering. 71, 4 (Dec. 2025), 63–76. DOI:https://doi.org/10.24425/ace.2025.156156.