Improving the Behaviour of Green Concrete Geopolymers Using Different HEMP Preservation Conditions (Fresh and Wet)
This paper evaluates a type of geopolymer concrete that uses hemp fibres as a natural aggregate due to the various advantages offered by these woody materials. These advantages include ease of cultivation and processing and their use in the essential structure of concretes used for green constructio...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/12/12/1530 |
| _version_ | 1797456160731693056 |
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| author | Mª Paz Sáez-Pérez Jorge Alberto Durán-Suárez Joao Castro-Gomes |
| author_facet | Mª Paz Sáez-Pérez Jorge Alberto Durán-Suárez Joao Castro-Gomes |
| author_sort | Mª Paz Sáez-Pérez |
| collection | DOAJ |
| description | This paper evaluates a type of geopolymer concrete that uses hemp fibres as a natural aggregate due to the various advantages offered by these woody materials. These advantages include ease of cultivation and processing and their use in the essential structure of concretes used for green construction purposes. The sampling study was prepared using an environmentally friendly inorganic binder, based on geopolymerization reactions (Si-Na). The improvement in the hemp aggregate using two different preservation methods (fresh and wet) was assessed. The type of conservation enables anaerobic reactions to take place in the structure of the hemp, in such a way as to modify the proportions of the organic compounds contained in the hemp and the morphology of the fibres. It also encourages the proliferation of cellulose nanofibrils (CNC), which enhance the mechanical results, improving plasticity and thixotropy. The hempcrete studied in this paper could be a good alternative material for sustainable, environmentally friendly construction, as much less CO<sub>2</sub> is emitted during the production process in comparison with conventional concrete. Using wet-preserved hemp means that less water must be added to the mix during preparation of the concrete. This also helps reduce production costs, and by extension, the cost of the final product. |
| first_indexed | 2024-03-09T16:04:20Z |
| format | Article |
| id | doaj.art-840be66d70134a41b52d2fe3ef5914c5 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T16:04:20Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-840be66d70134a41b52d2fe3ef5914c52023-11-24T16:51:21ZengMDPI AGMinerals2075-163X2022-11-011212153010.3390/min12121530Improving the Behaviour of Green Concrete Geopolymers Using Different HEMP Preservation Conditions (Fresh and Wet)Mª Paz Sáez-Pérez0Jorge Alberto Durán-Suárez1Joao Castro-Gomes2Building Constructions Department, Advanced Technical School for Building Engineering, University of Granada, 18071 Granada, SpainSculpture Department, Faculty of Fine Arts, University of Granada, 18071 Granada, SpainDepartment of Civil Engineering and Architecture, University of Beira Interior, 6201-001 Covilhã, PortugalThis paper evaluates a type of geopolymer concrete that uses hemp fibres as a natural aggregate due to the various advantages offered by these woody materials. These advantages include ease of cultivation and processing and their use in the essential structure of concretes used for green construction purposes. The sampling study was prepared using an environmentally friendly inorganic binder, based on geopolymerization reactions (Si-Na). The improvement in the hemp aggregate using two different preservation methods (fresh and wet) was assessed. The type of conservation enables anaerobic reactions to take place in the structure of the hemp, in such a way as to modify the proportions of the organic compounds contained in the hemp and the morphology of the fibres. It also encourages the proliferation of cellulose nanofibrils (CNC), which enhance the mechanical results, improving plasticity and thixotropy. The hempcrete studied in this paper could be a good alternative material for sustainable, environmentally friendly construction, as much less CO<sub>2</sub> is emitted during the production process in comparison with conventional concrete. Using wet-preserved hemp means that less water must be added to the mix during preparation of the concrete. This also helps reduce production costs, and by extension, the cost of the final product.https://www.mdpi.com/2075-163X/12/12/1530sustainable materialsconcrete geopolymerfresh and wet preservationhemp fibrescircular economy |
| spellingShingle | Mª Paz Sáez-Pérez Jorge Alberto Durán-Suárez Joao Castro-Gomes Improving the Behaviour of Green Concrete Geopolymers Using Different HEMP Preservation Conditions (Fresh and Wet) Minerals sustainable materials concrete geopolymer fresh and wet preservation hemp fibres circular economy |
| title | Improving the Behaviour of Green Concrete Geopolymers Using Different HEMP Preservation Conditions (Fresh and Wet) |
| title_full | Improving the Behaviour of Green Concrete Geopolymers Using Different HEMP Preservation Conditions (Fresh and Wet) |
| title_fullStr | Improving the Behaviour of Green Concrete Geopolymers Using Different HEMP Preservation Conditions (Fresh and Wet) |
| title_full_unstemmed | Improving the Behaviour of Green Concrete Geopolymers Using Different HEMP Preservation Conditions (Fresh and Wet) |
| title_short | Improving the Behaviour of Green Concrete Geopolymers Using Different HEMP Preservation Conditions (Fresh and Wet) |
| title_sort | improving the behaviour of green concrete geopolymers using different hemp preservation conditions fresh and wet |
| topic | sustainable materials concrete geopolymer fresh and wet preservation hemp fibres circular economy |
| url | https://www.mdpi.com/2075-163X/12/12/1530 |
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