Flexible pavement with mining waste proposal - execution and analysis of an experimental section.
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Date
2022
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Abstract
The extraction of iron ore has a fundamental role in the Brazilian economy.
However, such activity generates considerable volumes of waste whose disposal, even
if regulated and licensed, has a significant environmental impact. The worldwide
concern for sustainable practices along with the urgency for measures to mitigate
environmental damage, justifies research on its use in other activities. Therefore, the
present study aims to analyze the test results of laboratory versus field of mixtures
composed of mining waste. The field studies were made on the execution of an experimental section on the BR 040 highway, in Minas Gerais - Brazil. According to the
validation of the laboratory results, the mixtures composed of 35% Tailings + 15%
Waste Rock + 50% Canga of Ore and 35% Tailings + 20% Gravel 1 + 45% Gravel
0 were used in the base and sub-base layers of the experimental section, respectively.
The field technological control showed that the mixtures had an anomalous behavior
from the one observed in the laboratory, mainly regarding strength and deformability.
Description
Keywords
Sustainable, Mining, tailings, Test, Section
Citation
ANDALICIO, A. F.; PEREIRA, E. L.; OLIVEIRA, T. M. de. Flexible pavement with mining waste proposal - execution and analysis of an experimental section. REM - International Engineering Journal, v. 75, n. 4, p. 297-305, out./dez. 2022. Disponível em: <https://www.scielo.br/j/remi/a/47sKMLYmBKsKf6jLwMtL3sr/>. Acesso em: 03 maio 2023.