Obtenção, caracterização e aplicação de um compósito de matriz cimenticia e cargas de rejeitos
Sustainable construction seeks a balance between the growing urbanization process, civil construction and the mining industry, which are responsible for generating waste to the environment. In this context, this work aims to present the construction of sustainable blocks using metaconglomerate ta...
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| フォーマット: | Dissertação |
| 言語: | pt_BR |
| 出版事項: |
Universidade Federal do Rio Grande do Norte
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| 主題: | |
| オンライン･アクセス: | https://repositorio.ufrn.br/handle/123456789/32967 |
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| 要約: | Sustainable construction seeks a balance between the growing urbanization
process, civil construction and the mining industry, which are responsible for
generating waste to the environment. In this context, this work aims to present the
construction of sustainable blocks using metaconglomerate tailings, other tailings
disposable ̶sand, cement, plaster and water ̶and the use of some filling models, such
as PET bottles, beer cans, styrofoam and discarded tubes. The purpose of this
manufactured product is to add value to the civil construction market, since it is a
sustainable composite. With these affordable blocks, it will be possible to build
popular houses and, consequently, it will support the reduction of the existing housing
deficit in Brazil. The materials used in the manufacture were characterized through
the analysis of X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), Scanning
Electron Microscopy (SEM), particle size and specific mass analysis. In the
manufacturing process, specimens with composition were produced and thereafter,
thermal, mechanical and water absorption tests were performed to analyze the formal
composite. The results indicated the following quantifications: the mechanical
resistance to compression reached the average value of 2.24 MPa; the water absorption
presented an average value of 18.3%; the thermal conductivity had an average of 0.33
W/m.K; the specific volumetric heat presented an average 1.49 MJ/m3.K; the diffusivity obtained an average value of 0.22 mm2/s; and the resistivity presented an average value of 302.73°C.m/W. Such results achieved are in accordance with the Brazilian Association of Technical Standards (ABNT), so it is possible to make the
use of manufactured sustainable blocks in the construction of popular houses feasible. |
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