• Importancia en la selección de criterios de diseño en el desempeño de micropavimentos aplicado al proyecto vial Conococha – Recuay

      Lazo Lázaro, Guillermo; Palomino Díaz, Michel Víctor; Rodríguez Balbín, Erika Fiorella (Universidad Peruana de Ciencias Aplicadas (UPC), 2017-07-01)
      The Ministry of Transport and Communications on May 21th, 2015 approved the Supplemental Indenture to the "Management and Conservation Service Road off Highway Emp.1N - Conococha - Huaraz - Caraz - Molinopampa - and Emp. 3N - Chiquián - Aquia - Emp. 3N ", that will culminate on May 22 th, 2016. The road divided into five sections, where it verified that both superficially and structurally, the pavement along all sections presents acceptable conditions for the continuity of commissioning for a period of one year, while the functional evaluation according to the Index measured irregularity and the high frequency of vehicles from Huaraz to Pativilca, is that Conococha-Huaraz, sections require intervention purposes of improving pathway functionality. The improvement in functional status in pavements has been developing gradually, so that there are ways to improve efficiently the microsurfacing performance and extend the life of the pavement. That is why the next question arises : Is it important the selection of design criteria in the performance of microsurfacing applied to the road project Conococha - Recuay ? In this situation, an assessment of design criteria microsurfacing, method of intersection of curves and equivalent areas where it is compared with performance tests and check which is suitable to develop a better optimal performance is proposed. Significantly, the success of microsurfacing are guaranteed to meet the following mains : high quality materials, competent design and construction procedures. The methodology stars with field sampling, belonging to the Acaray quarry, and then proceed to the characterization of aggregates, where the following tests were performed : Granulometry, Sand Equivalent Test, Methylene Blue Test and Unit Weight. Subsequently, laboratory tests stars for mix design microsurfacing. A theoretical percentage emulsion obtains by the Surface Area Method and based on this result it starts with the iteration to find the required amounts of each component of microsurfacing and perform the following tests : Mix time, Wet Cohesion, Wet-Track Abrasion Loss and Loaded wheel Test. With the results obtained proceeds to plot curves for both versions of design for the percentage of optimum asphalt content with this result comparison is made by performance tests (Wet-Track Abrasion Loss and Loaded wheel Test), verifying what the that presents a better result ; Finally, the differential test with which the compatibility of the components is verified, the Schulze Breuer and Ruck. Once checked this test is finished with design. Finally, the result of research by comparing the results, it can be seen that in this case the best criteria is equivalent areas, then it will allow greater durability, avoid the problems of exudation, a wear resistant surface, anti-slip, waterproof, the same way the IRI remained below 2.5 m/km as additional contribution.
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