Influence of types of binder and plant aggregates on hygrothermal and mechanical properties of vegetal concretes
| Autor: | Jean-Emmanuel Aubert, Méryl Lagouin, Peter Moonen, Camille Magniont, Aurélie Laborel-Préneron, Pascale Sénéchal |
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| Přispěvatelé: | Laboratoire Matériaux et Durabilité des constructions (LMDC), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Laboratoire des Fluides Complexes et leurs Réservoirs (LFCR), TOTAL FINA ELF-Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS), Développement de méthodologies expérimentales (DMEX), Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Moisture [SDE.IE]Environmental Sciences/Environmental Engineering 0211 other engineering and technologies 020101 civil engineering Sorption 02 engineering and technology Building and Construction Raw material engineering.material 0201 civil engineering Permeability (earth sciences) Compressive strength 021105 building & construction engineering General Materials Science Composite material Porosity Metakaolin Civil and Structural Engineering Lime |
| Zdroj: | Construction and Building Materials Construction and Building Materials, Elsevier, 2019, 222, pp.852-871. ⟨10.1016/j.conbuildmat.2019.06.004⟩ Construction and Building Materials, 2019, 222, pp.852-871. ⟨10.1016/j.conbuildmat.2019.06.004⟩ |
| ISSN: | 0950-0618 |
| Popis: | International audience; Bio-aggregate based building materials offer promising perspectives thanks to their low environmental impact and interesting hygrothermal behaviour. In this paper, different formulations of bio-aggregate concrete are proposed and analysed. We focus on two types of locally available bio-aggregates, namely maize and sunflower bark chips, and two types of binder matrices, based on respectively metakaolin and lime. The study specifically focuses on the pore structure of the composite material, as this quantity has a decisive impact on the insulating properties (thermal conductivity), the hygric behaviour (sorption isotherms, water vapour permeability and moisture buffer value) as well as on the mechanical performance (compressive strength). The results underline the impact of the constituents' porosity on the complex porous structure of the bio-concrete and the influence of porosity on its performance. The findings demonstrate that metakaolin and sunflower are high-potential raw materials for the design of a bio-aggregate based concrete. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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