PSI - Issue 74

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2025) 000–000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 74 (2025) 25–32

Eleventh International Conference on Materials Structure and Micromechanics of Fracture Effectiveness of NO x absorption by cement mortars modified with

the addition of activated carbon Maciej Gruszczyński a * , Małgorzata Lenart a a Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland

a

© 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of Libor Pantělejev © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of Libor Pant ĕ lejev Keywords: activated carbon; NO x adsorption; cement composite; cement mortars; additives; air pollution; 1. Introduction Nowadays, the greatest threat to the natural environment and, at the same time, to human health is the uncontrolled aggressive development of civilization. One of the aspects of environmental protection is the reduction and utilization of pollutants emitted into the atmosphere, Statistics Poland (2019, 2020, 2021). The air pollutants introduced by humans into the atmosphere are: solid, liquid or gaseous substances in amounts that threaten not only the environment, but also people staying in it. x Abstract Particulate matter air pollution is extremely harmful not only to the natural environment, but also to human health. The article presents the results of the study of the NO x adsorption by the cement composite containing the addition of activated carbon in the amount of 4% c.m. The technology of using the activated carbon additive has the advantage over the use of TiO 2 in that it does not require activation with UV and can be used in places where there is no sunlight, such as road tunnels, railway tunnels or pedestrian underpasses. The research program showed that the use of a small amount of activated carbon causes an order of magnitude increase in NO x adsorption by the cement composite in relation to the reference mortar, despite mortars carbonation. x 2 x

* Corresponding author. Tel.: +48-12-628-23-63. E-mail address: maciej.gruszczynski@pk.edu.pl

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of Libor Pant ĕ lejev lejev

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of Libor Pantělejev 10.1016/j.prostr.2025.10.029