Performance evaluation of granular sub-base by maps of resistance using GrapherTM. Case study: Ibague, Colombia

In this study, we evaluated the performance of the granular sub-base materials of the "La Caima" and "Martínez" quarries located in Ibagué, Colombia, using resistance maps validated with the traditional data of optimum moisture content, maximum dry unit weight and CBR. From the r...

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Autores:
Pulecio Diaz, Julian andres
Pallares Muñoz, Myriam
Rodríguez Calderón, Wilson
Tipo de recurso:
Article of journal
Fecha de publicación:
2023
Institución:
Universidad Cooperativa de Colombia
Repositorio:
Repositorio UCC
Idioma:
OAI Identifier:
oai:repository.ucc.edu.co:20.500.12494/50845
Acceso en línea:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85069523913&partnerID=40&md5=3e2a626b810571dab78d5212dc6296e7
https://hdl.handle.net/20.500.12494/50845
Palabra clave:
CBR
COMPACTION
DENSITY
MOISTURE
PERFORMANCE
PROCTOR
RESISTANCE MAPS
Rights
openAccess
License
http://purl.org/coar/access_right/c_abf2
Description
Summary:In this study, we evaluated the performance of the granular sub-base materials of the "La Caima" and "Martínez" quarries located in Ibagué, Colombia, using resistance maps validated with the traditional data of optimum moisture content, maximum dry unit weight and CBR. From the results of resistance maps made for the two quarries using the Grapher software we concluded that the maximum value of CBR could be obtained with moisture values lower than the optimum moisture content. We conclude that a moisture value lower than the optimum moisture content (obtained from the Proctor test) produces higher values of CBR, for example, in the "La Caima" and "Martínez" quarries a higher CBR value is obtained when the optimum moisture content is reduced by 0.5%. In first case, CBR value increases 31.61% and the second case 24.46%. The results obtained from the two case studies indicate that the development of resistance maps is the most appropriate methodology to achieve a better compaction control of the granular sub-base materials.