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Effect of innovative bioproducts on air lime mortars
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Oliveira, Alexandre et Pereira, Alice S. et Lemos, Paulo C. et Guerra, João P. et Silva, Vitor et Faria, Paulina (2021) Effect of innovative bioproducts on air lime mortars. Journal of Building Engineering, 35 . p. 101985. ISSN 23527102 [Article]
Le plein texte n'est pas disponible pour ce document.Résumé (en anglais)
In this work , air lime mortars were bioformulated with two innovative bioproducts, one resulting from iron supplemented Escherichia coli cultures and a second one exploiting microbial mixed cultures grown with crude glycerol as substrate. The bioproducts were lyophilized and, for the mortar formulation, suspended in water and used as mixing liquid. Workability of mortars was evaluated by the flow table consistence and 90-days-old samples were tested for different properties, such as thermal conductivity, bulk density, porosimetry, water absorption, drying, surface hardness and compressive strength. With water content to ensure workability, bioformulated mortars presented higher thermal insulation and reduced water absorption when compared with a non-bioformulated control mortar. However, the presence of bioproducts decreased the compressive strength of the air lime mortar. Contact with water, simulating weathering, diminished that decrease. The strategy utilized in the present work meet so me of the goals of a circular economy approach maximizing natural resources by the use of wastes to produce the bioproducts and increasing lime mortars durability.
| Type: | Article |
|---|---|
| Auteurs: | Auteurs E-mail Oliveira, Alexandre NON SPECIFIÉ Pereira, Alice S. NON SPECIFIÉ Lemos, Paulo C. NON SPECIFIÉ Guerra, João P. NON SPECIFIÉ Silva, Vitor NON SPECIFIÉ Faria, Paulina paulina.faria@fct.unl.pt |
| Langues: | English |
| Mots-clés libres: | Air lime mortars; Bioformulation; Crude-glycerol based microbial ixed cultures bioproduct; Durability; Escgerichia coli-based bioproduct; Sustainability; lime mortars; mortars |
| Sujets: | C. ARCHITECTURE > 04. Matériaux de construction F. TECHNIQUES SCIENTIFIQUES ET METHODOLOGIES DE CONSERVATION > 06. Analyse des matériaux F. TECHNIQUES SCIENTIFIQUES ET METHODOLOGIES DE CONSERVATION > 11. Essai de vieillissement artificiel |
| Volume: | 35 |
| ISSN: | 23527102 |
| Déposé par: | Prof. Paulina Faria |
| Date de dépôt: | 27 mars 2022 21:43 |
| Dernière modification: | 27 mars 2022 21:43 |
| URI: | https://openarchive.icomos.org/id/eprint/2600 |
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