Evaluation of Mechanical Properties and HPM Pulse Shielding Effectiveness of Cement-Based Composites
Name
energies-16-04062-v2.pdf
Size
7.08 MB
Format
Adobe PDF
Checksum (MD5)
1493d8894cedc45b47c2effea6117750
Author(s)
Musiał, Michał
Logoń, Dominik
Majcher, Krzysztof
Niewiadomski, Paweł
Trapko, Tomasz
Jarczewska, Kamila
Pakos, Wojciech
Różański, Adrian
Sobótka, Maciej
Stefaniuk, Damian
Date Issued
May 12, 2023
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Energies 16 (10): 4062 (2023)
Version
Final published version
Abstract
In today’s world, protection against electromagnetic waves, including high-power microwave (HPM) pulses, is becoming increasingly important. Hence, the aim of this research was to select an absorbing admixture, which, when used in an appropriate quantity, improves the effectiveness of shielding against electromagnetic waves and, at the same time, satisfies the requirements that are important from a construction engineering point of view. Altogether, eighteen admixtures (including two types of fibers), added in different quantities, and three types of aggregate have been tested. The compressive and flexural strength test results show that the greatest improvement in the tested mechanical properties was achieved in the case of admixtures such as steel fibers, carbon black P803, ferrite, and fly ash. Regarding the effect of the admixtures on shielding effectiveness, the best results were obtained for graphite in the form of flakes, graphite in the form of powder, carbon black N990 and P803, polypropylene and steel fibers, and hybrid admixtures, i.e., ashporite aggregate with carbon black and ashporite aggregate with graphite flakes. Regarding both mechanical properties and HPM pulse shielding effectiveness, the best effects were achieved in the case of the specimens with a high steel fiber content.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.3390/en16104062
