دورية أكاديمية
Impact of Thermal Stress on Abrasive Dust from a Carbon Fiber-Reinforced Concrete Composite
| العنوان: | Impact of Thermal Stress on Abrasive Dust from a Carbon Fiber-Reinforced Concrete Composite |
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| المؤلفون: | Arne Koch, Lukas Friederici, Petra Fiala, Armin Springer, Sebastiano Di Bucchianico, Michael Stintz, Marcus Frank, Christopher Paul Rüger, Thorsten Streibel, Ralf Zimmermann |
| المصدر: | Fibers, Vol 10, Iss 5, p 39 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Chemicals: Manufacture, use, etc. LCC:Textile bleaching, dyeing, printing, etc. LCC:Biology (General) LCC:Physics |
| مصطلحات موضوعية: | carbon fibers, concrete, WHO fibers, thermal exposure, scanning electron microscopy, evolved gas analysis, Chemicals: Manufacture, use, etc., TP200-248, Textile bleaching, dyeing, printing, etc., TP890-933, Biology (General), QH301-705.5, Physics, QC1-999 |
| الوصف: | Recently, a novel corrosion-resistant construction material, Carbon Concrete Composite (C3), consisting of coated carbon fibers embedded in a concrete matrix, was introduced. However, thermal exposure during domestic fires may impact the release of organic pollutants and fibers during abrasive processing and/or demolition. Consequently, the objective of this study was to explore the emission characteristics of toxic compounds and harmful fibers during the dry-cutting after exposure to 25–600 °C (3 h, air). These parameters mimic the abrasive machining and dismantling after a domestic fire event. Mass spectrometry and chromatography served as analytical methodologies, and no organic pollutants for exposure temperatures ≥ 400 °C were found. In contrast, significant amounts of pyrolysis products from the organic fiber coating were released at lower temperatures. Studying the morphology of the released fibers by electron microscopy revealed a decrease in fiber diameter for temperatures exceeding 450 °C. At ≥550 °C, harmful fibers, according to the World Health Organization (WHO) definition, occurred (28–41 × 103 WHO fibers/m3 at 550–600 °C). This leads to the conclusion that there is a demand for restraining and protection measures, such as the use of wet cutting processes, suction devices, particle filtering masks and protective clothing, to handle thermally stressed C3. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2079-6439 |
| العلاقة: | https://www.mdpi.com/2079-6439/10/5/39Test; https://doaj.org/toc/2079-6439Test |
| DOI: | 10.3390/fib10050039 |
| الوصول الحر: | https://doaj.org/article/9a09d0378f604de2892d5394bdd14959Test |
| رقم الانضمام: | edsdoj.9a09d0378f604de2892d5394bdd14959 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20796439 |
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| DOI: | 10.3390/fib10050039 |