Mechanical Properties of Mortars Reinforced with Amazon Rainforest Natural Fibers
The addition of natural fibers used as reinforcement has great appeal in the construction materials industry since natural fibers are cheaper, biodegradable, and easily available. In this work, we analyzed the feasibility of using the fibers of piassava, tucum palm, razor grass, and jute from the Am...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/1/155 |
| _version_ | 1797542847214256128 |
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| author | Régis Pamponet da Fonseca Janaíde Cavalcante Rocha Malik Cheriaf |
| author_facet | Régis Pamponet da Fonseca Janaíde Cavalcante Rocha Malik Cheriaf |
| author_sort | Régis Pamponet da Fonseca |
| collection | DOAJ |
| description | The addition of natural fibers used as reinforcement has great appeal in the construction materials industry since natural fibers are cheaper, biodegradable, and easily available. In this work, we analyzed the feasibility of using the fibers of piassava, tucum palm, razor grass, and jute from the Amazon rainforest as reinforcement in mortars, exploiting the mechanical properties of compressive and flexural strength of samples with 1.5%, 3.0%, and 4.5% mass addition of the composite binder (50% Portland cement + 40% metakaolin + 10% fly ash). The mortars were reinforced with untreated (natural) and treated (hot water treatment, hornification, 8% NaOH solution, and hybridization) fibers, submitted to two types of curing (submerged in water, and inflated with CO<sub>2</sub> in a pressurized autoclave) for 28 days. Mortars without fibers were used as a reference. For the durability study, the samples were submitted to 20 drying/wetting cycles. The fibers improved the flexural strength of the mortars and prevented the abrupt rupture of the samples, in contrast to the fragile behavior of the reference samples. The autoclave cure increased the compressive strength of the piassava and tucum palm samples with 4.5% of fibers. |
| first_indexed | 2024-03-10T13:36:16Z |
| format | Article |
| id | doaj.art-dbbbab32eb1f4fbe810f8745ce6fb937 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:36:16Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-dbbbab32eb1f4fbe810f8745ce6fb9372023-11-21T07:30:38ZengMDPI AGMaterials1996-19442020-12-0114115510.3390/ma14010155Mechanical Properties of Mortars Reinforced with Amazon Rainforest Natural FibersRégis Pamponet da Fonseca0Janaíde Cavalcante Rocha1Malik Cheriaf2Post-Graduate Program in Civil Engineering, Federal University of Santa Catarina, Laboratory of Waste Valorization and Sustainable Materials (ValoRes), CEP 88040-900 Florianópolis, SC, BrazilDepartment of Civil Engineering, Federal University of Santa Catarina, Laboratory of Waste Valorization and Sustainable Materials (ValoRes), CEP 88040-900 Florianópolis, SC, BrazilDepartment of Civil Engineering, Federal University of Santa Catarina, Laboratory of Waste Valorization and Sustainable Materials (ValoRes), CEP 88040-900 Florianópolis, SC, BrazilThe addition of natural fibers used as reinforcement has great appeal in the construction materials industry since natural fibers are cheaper, biodegradable, and easily available. In this work, we analyzed the feasibility of using the fibers of piassava, tucum palm, razor grass, and jute from the Amazon rainforest as reinforcement in mortars, exploiting the mechanical properties of compressive and flexural strength of samples with 1.5%, 3.0%, and 4.5% mass addition of the composite binder (50% Portland cement + 40% metakaolin + 10% fly ash). The mortars were reinforced with untreated (natural) and treated (hot water treatment, hornification, 8% NaOH solution, and hybridization) fibers, submitted to two types of curing (submerged in water, and inflated with CO<sub>2</sub> in a pressurized autoclave) for 28 days. Mortars without fibers were used as a reference. For the durability study, the samples were submitted to 20 drying/wetting cycles. The fibers improved the flexural strength of the mortars and prevented the abrupt rupture of the samples, in contrast to the fragile behavior of the reference samples. The autoclave cure increased the compressive strength of the piassava and tucum palm samples with 4.5% of fibers.https://www.mdpi.com/1996-1944/14/1/155amazon rainforest natural fibersfiber reinforced cement mortarsmechanical propertiesphysical-chemical treatments |
| spellingShingle | Régis Pamponet da Fonseca Janaíde Cavalcante Rocha Malik Cheriaf Mechanical Properties of Mortars Reinforced with Amazon Rainforest Natural Fibers Materials amazon rainforest natural fibers fiber reinforced cement mortars mechanical properties physical-chemical treatments |
| title | Mechanical Properties of Mortars Reinforced with Amazon Rainforest Natural Fibers |
| title_full | Mechanical Properties of Mortars Reinforced with Amazon Rainforest Natural Fibers |
| title_fullStr | Mechanical Properties of Mortars Reinforced with Amazon Rainforest Natural Fibers |
| title_full_unstemmed | Mechanical Properties of Mortars Reinforced with Amazon Rainforest Natural Fibers |
| title_short | Mechanical Properties of Mortars Reinforced with Amazon Rainforest Natural Fibers |
| title_sort | mechanical properties of mortars reinforced with amazon rainforest natural fibers |
| topic | amazon rainforest natural fibers fiber reinforced cement mortars mechanical properties physical-chemical treatments |
| url | https://www.mdpi.com/1996-1944/14/1/155 |
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