Compósito de gesso reforçado com fibra de coco e cortiça triturada
The constructive systems evolve every day, especially those that are ecologically correct. Scientific research aimed at creating a new material of natural origin, for application in civil construction, should present good results from a technical, economic and social point of view. Observing the...
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| Format: | doctoralThesis |
| Langue: | pt_BR |
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| Accès en ligne: | https://repositorio.ufrn.br/jspui/handle/123456789/26938 |
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| Résumé: | The constructive systems evolve every day, especially those that are ecologically correct.
Scientific research aimed at creating a new material of natural origin, for application in civil
construction, should present good results from a technical, economic and social point of view.
Observing the problems caused by excessive heat, due to the high climatic temperatures, which
contributes directly to the poor living conditions, health and malaise in the internal environments of
the buildings, one can notice a great consumption of electric energy with apparatus of refrigeration
and air conditioning. For this reason, the proposal to create a masonry coating, a natural composite
capable of minimizing these problems. It was in this sense that the research focused on the study
and development of Composite of Gypsum reinforced with Coconut Fiber and Crushed Cork -
CGFCC was created to meet the condition of thermal insulation in environments that need this
protection, also reducing the synthetic materials of easy combustion, not recyclable and cost
effective. In the methodological process, the load materials (coconut and cork fiber) were
manufactured for the production of gypsum matrix test bodies, according to the technical standards
of ABNT and ASTM. The materials went through the characterization phase through XRF, XRD,
TGA/DTGA, SEM and granulometry. In this phase, it was verified that the physicochemical
conditions of the raw materials allowed the formulation of the CGFCC composite, so that 80 test
bodies were produced in four proportional formulations of 0%, 10%, 20% and 30% of load (coconut
fiber and/or cork). The test bodies were subjected to mechanical, physical-chemical and thermal
properties analysis: axial compression strength, hardness, water absorption, moisture, density,
thermal conductivity, thermal resistivity, thermal diffusivity and specific heat. To analyze the
microstructure of the test bodies, a SEM analysis was performed. It was concluded that CGFCC
composites in the formulations F2 and F3 are satisfactory for use as thermal insulators in the form
of blocks or plates, as they presented satisfactory results for water absorption, moisture, mechanical
resistance, hardness and thermal analysis, and is even lighter when compared to traditional masonry
materials. In view of all the mentioned factors, the CFGCC composite has technical and economical
feasibility, and promotes the reduction of environmental impact. |
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