Geomechanical characterization of samples in the pilot zone of Bogotá, Colombia, to determine its potential as aggregates for construction
DOI:
https://doi.org/10.32685/0120-1425/bol.geol.49.2.2022.618Keywords:
Bogotá pilot zone, hardness, cleanliness, construction materials, geomechanical tests
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Copyright (c) 2022 Servicio Geológico Colombiano
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Abstract
The purpose of this project is to evaluate and determine potential areas for the exploitation of a mineral resource, considering that materials suitable for construction are a strategic line for the development of the country. In this sense, the pilot zone of Bogotá defined by a radius of 200 km around Bogotá was evaluated, in which lithostratigraphic units with potential for stone aggregates in areas free of mining licenses were studied through geotechnical testing of samples. A total of 198 samples were collected, which underwent the process of size reduction or crushing. Subsequently, granulometry tests were conducted to classify the samples by size, and finally, wear tests (hardness) and sand equivalent tests (cleanliness) were carried out. Once the tests were performed, the results were interpreted to define the potential use of this material as coarse aggregates (sizes in the range of 75 to 4.75 mm) and fine aggregates (sizes in the range of 4.75 to 0.075 mm), according to the General Construction Specifications of the National Highway Institute of Colombia (Invías). In terms of hardness and cleanliness, 60% of the samples collected in the pilot zone of Bogotá can be used to produce aggregates. A total of 118 potential sites for the exploitation of coarse aggregates and 19 potential sites for the exploitation of fine aggregates were defined.
References
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