The permanent deformation in the asphalt mixtures and the consequent deterioration of asphalt pavements in Perú
DOI:
https://doi.org/10.31381/perfiles_ingenieria.v2i11.402Keywords:
Permanent deformation,, asphalt mixes, rheologic behavior, rutting, cracking due to fatigueAbstract
In recent years, Peru has promoted a favorable policy for the construction of road works throughout the territory, for which more than 15,000 kilometers of roads with asphalt pavements have been built, according to reports from the Ministry of Transport and Communications, the agency in charge of the national road network. Given this reality, there is an urgent need to improve the technology of asphalt pavements in Peru, so that they achieve the useful life for which they were designed. Permanent deformation is one of the most worrying failures in the deterioration of pavements and it is necessary to know its fundamental causes in order to take appropriate precautions in the stages of project development, construction and future maintenance. For this reason, it is essential that various tests and analyses be carried out in Peru using specialized laboratory and field equipment, which allow the evaluation of the pavement structure to avoid permanent deformation. This leads to the need to develop new technical specifications for asphalt mixtures that, depending on the results of the analysis, may include the use of modifiers such as polymers, rubber powder and the application of SUPERPAVE technology for a better characterization of the constituent materials of the asphalt mixture, with the purpose of increasing the durability of asphalt pavements.
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Copyright (c) 2016 Néstor Huamán Guerrero, Carlos M. Chang Albitres
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