Inorganic Polymers (Geopolymers) Based on Construction and Demolition Waste for Fire Safety of Buildings and Constructions
<p id="p1">Fire safety of buildings and civil engineering structures is of paramount importance for people’s safety and the protection of their property. In this paper, the development of a new, sustainable and advanced fire-resistant inorganic polymer (geopolymer) is investigated. The new mat...
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| Autores principales: | , |
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| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
| Publicado: |
IntechOpen
2025
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| Materias: | |
| Acceso en línea: | https://www.intechopen.com/chapters/1194643 |
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| Sumario: | <p id="p1">Fire safety of buildings and civil engineering structures is of paramount importance for people’s safety and the protection of their property. In this paper, the development of a new, sustainable and advanced fire-resistant inorganic polymer (geopolymer) is investigated. The new material is based on the recycling of construction and demolition waste, especially the waste brick stream. The behavior of the developed inorganic polymer at elevated temperatures was evaluated in terms of physical, thermal and mechanical properties. The waste brick-based inorganic polymer was thermally stable up to 1050°C with residual compressive strength ranging from 15 to 25 MPa. The compression stress under thermal load revealed elastic deformation before fracture up to 1000°C, and plastic deformation without fracture at higher temperatures. The strength variations observed at elevated temperatures were attributed to the mineralogical transformations occurring in the geopolymeric matrix. The fire performance of the inorganic polymer was also tested according to the ISO-834 standard time–temperature curve. The material managed to keep the temperature at the interface with concrete below the temperature set by the ISO-834 fire test (180°C) for 100 min, proving its effectiveness to be used as a thermal barrier in buildings and constructions. The specimen exposed to fire kept its structural integrity after the test completion, without presenting any significant macroscopic damage. Based on the results of this research, the developed inorganic polymer is a suitable material to be used for the fire safety of buildings and other construction projects.</p> |
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| ISBN: | 978-0-85014-829-9 |
| DOI: | 10.5772/intechopen.1010424 |