Reuse of Heat Resistant Glass Cullet in Cement Composites Subjected to Thermal Load
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Faculty of Security Engineering and Civil Protection, Main School of Fire Service, 01-629 Warsaw, Poland
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Faculty of Civil Engineering and Architecture, Lublin University of Technology, 20-618 Lublin, Poland
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Institute of Security Engineering, Main School of Fire Service, 01-629 Warsaw, Poland
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Author to whom correspondence should be addressed.
Materials 2020, 13(19), 4434; https://doi.org/10.3390/ma13194434
Received: 31 July 2020
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Revised: 30 September 2020
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Accepted: 2 October 2020
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Published: 5 October 2020
(This article belongs to the Special Issue Recycled Concrete with Waste and By-Products)
The article describes the possibility of using waste glass cullet as an alternative aggregate for the production of cement composites. Three concrete mixes based on Portland cement CEM I 42.5 R with different contents of recyclate were designed. Borosilicate glass cullet was introduced into the batch by reducing the content of natural aggregate by 0%, 2.5% and 7.5%. Apparent density, water absorption and compressive strength at elevated temperature were measured. The temperature distribution, in cubic samples, was followed by thermocouples. The elements were heated in a special furnace at the temperatures of 200 °C, 400 °C, 600 °C and 800 °C. The composite topography and phase composition were observed using X-ray energy scattering electron microscopy. The results show that the appropriate modification of the cement composite with 2.5% heat-resistant glass cullet improves both the thermal and mechanical properties. Compressive strength reaches an average value of 48.6 MPa after 28 days. The increase in temperature weakens the structure of the composite. It was found that the obtained cement composite has good physico–chemical properties. The research results are presented in the article.
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Keywords:
recycled aggregates; cullet; cement composite
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MDPI and ACS Style
Powęzka, A.; Szulej, J.; Ogrodnik, P. Reuse of Heat Resistant Glass Cullet in Cement Composites Subjected to Thermal Load. Materials 2020, 13, 4434. https://doi.org/10.3390/ma13194434
AMA Style
Powęzka A, Szulej J, Ogrodnik P. Reuse of Heat Resistant Glass Cullet in Cement Composites Subjected to Thermal Load. Materials. 2020; 13(19):4434. https://doi.org/10.3390/ma13194434
Chicago/Turabian StylePowęzka, Aleksandra, Jacek Szulej, and Paweł Ogrodnik. 2020. "Reuse of Heat Resistant Glass Cullet in Cement Composites Subjected to Thermal Load" Materials 13, no. 19: 4434. https://doi.org/10.3390/ma13194434
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