Cargando…
Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites
This paper addresses the issues in making wood–concrete composites more resilient to environmental conditions and to improve their compressive strength. Tests were carried out on cubic specimens of 10 × 10 × 10 cm(3) composed of ordinary concrete with a 2% redwood- and hardwood-chip dosage. Superfic...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9146376/ https://www.ncbi.nlm.nih.gov/pubmed/35629599 http://dx.doi.org/10.3390/ma15103572 |
_version_ | 1784716548873650176 |
---|---|
author | Khelifi, Walid Bencedira, Selma Azab, Marc Riaz, Malik Sarmad Abdallah, Mirvat Abdel Baki, Zaher Krauklis, Andrey E. Aouissi, Hani Amir |
author_facet | Khelifi, Walid Bencedira, Selma Azab, Marc Riaz, Malik Sarmad Abdallah, Mirvat Abdel Baki, Zaher Krauklis, Andrey E. Aouissi, Hani Amir |
author_sort | Khelifi, Walid |
collection | PubMed |
description | This paper addresses the issues in making wood–concrete composites more resilient to environmental conditions and to improve their compressive strength. Tests were carried out on cubic specimens of 10 × 10 × 10 cm(3) composed of ordinary concrete with a 2% redwood- and hardwood-chip dosage. Superficial treatments of cement and lime were applied to the wood chips. All specimens were kept for 28 days in the open air and for 12 months in: the open air, drinking water, seawater, and an oven. Consequently, the compressive strength of ordinary concrete is approximately 37.1 MPa. After 365 days of exposure to the open air, drinking water, seawater, and the oven, a resistance loss of 35.84, 36.06, 42.85, and 52.30% were observed, respectively. In all environments investigated, the untreated wood composite concrete’s resistance decreased significantly, while the cement/lime treatment of the wood enhanced them. However, only 15.5 MPa and 14.6 MPa were attained after the first 28 days in the cases of the redwood and the hardwood treated with lime. These findings indicate that the resistance of wood–concrete composites depends on the type of wood used. Treating wood chips with cement is a potential method for making these materials resistant in conservation situations determined by the cement’s chemical composition. The current study has implications for researchers and practitioners for further understanding the impact of these eco-friendly concretes in the construction industry. |
format | Online Article Text |
id | pubmed-9146376 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-91463762022-05-29 Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites Khelifi, Walid Bencedira, Selma Azab, Marc Riaz, Malik Sarmad Abdallah, Mirvat Abdel Baki, Zaher Krauklis, Andrey E. Aouissi, Hani Amir Materials (Basel) Article This paper addresses the issues in making wood–concrete composites more resilient to environmental conditions and to improve their compressive strength. Tests were carried out on cubic specimens of 10 × 10 × 10 cm(3) composed of ordinary concrete with a 2% redwood- and hardwood-chip dosage. Superficial treatments of cement and lime were applied to the wood chips. All specimens were kept for 28 days in the open air and for 12 months in: the open air, drinking water, seawater, and an oven. Consequently, the compressive strength of ordinary concrete is approximately 37.1 MPa. After 365 days of exposure to the open air, drinking water, seawater, and the oven, a resistance loss of 35.84, 36.06, 42.85, and 52.30% were observed, respectively. In all environments investigated, the untreated wood composite concrete’s resistance decreased significantly, while the cement/lime treatment of the wood enhanced them. However, only 15.5 MPa and 14.6 MPa were attained after the first 28 days in the cases of the redwood and the hardwood treated with lime. These findings indicate that the resistance of wood–concrete composites depends on the type of wood used. Treating wood chips with cement is a potential method for making these materials resistant in conservation situations determined by the cement’s chemical composition. The current study has implications for researchers and practitioners for further understanding the impact of these eco-friendly concretes in the construction industry. MDPI 2022-05-17 /pmc/articles/PMC9146376/ /pubmed/35629599 http://dx.doi.org/10.3390/ma15103572 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Khelifi, Walid Bencedira, Selma Azab, Marc Riaz, Malik Sarmad Abdallah, Mirvat Abdel Baki, Zaher Krauklis, Andrey E. Aouissi, Hani Amir Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites |
title | Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites |
title_full | Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites |
title_fullStr | Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites |
title_full_unstemmed | Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites |
title_short | Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites |
title_sort | conservation environments’ effect on the compressive strength behaviour of wood–concrete composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9146376/ https://www.ncbi.nlm.nih.gov/pubmed/35629599 http://dx.doi.org/10.3390/ma15103572 |
work_keys_str_mv | AT khelifiwalid conservationenvironmentseffectonthecompressivestrengthbehaviourofwoodconcretecomposites AT bencediraselma conservationenvironmentseffectonthecompressivestrengthbehaviourofwoodconcretecomposites AT azabmarc conservationenvironmentseffectonthecompressivestrengthbehaviourofwoodconcretecomposites AT riazmaliksarmad conservationenvironmentseffectonthecompressivestrengthbehaviourofwoodconcretecomposites AT abdallahmirvat conservationenvironmentseffectonthecompressivestrengthbehaviourofwoodconcretecomposites AT abdelbakizaher conservationenvironmentseffectonthecompressivestrengthbehaviourofwoodconcretecomposites AT krauklisandreye conservationenvironmentseffectonthecompressivestrengthbehaviourofwoodconcretecomposites AT aouissihaniamir conservationenvironmentseffectonthecompressivestrengthbehaviourofwoodconcretecomposites |