Análisis comparativo del método de PCI e IRI en la calificación de la condición actual del pavimento flexible en un tramo de la Av. Llira Ñan y OE2 en la Ciudad de Quito

Abstract

This titling project determines the conditions of the flexible pavement through the Pavement Condition Index (PCI) and the International Roughness Index (IRI), the study was carried out in Quito, in order to determine the correlations existing in the two conditions based on current regulations according to ASTM D6433 and ASTM E1926 respectively. The PCI determines the condition of the flexible pavement visually, for this reason, it was determined in lengths of 6 tracks, of 6 sections with sample units of 38m, likewise, the IRI measures the roughness of the flexible pavement that was determined using the Merlin Roughness Meter. Which determines the quality that exists in the pavement, providing us with necessary information about the current state of the surface of the wearing layer, in addition to indicating by the scale, whether a pavement is rough, or very good so the transit could be made. According to the results obtained in the study road, it can be seen that the conditions of the flexible pavement through PCI, for both directions are in a range of 30% to 50%, on the PCI scale, which determines that it is in a very poor state in the 5 sections, however, it is a road that can be transited prudently, while section 6 in a range of 10% is in a bad condition for which intervention is required by carrying out adequate maintenance. The IRI readings determine that the study road is considered to have a deteriorated pavement with an average roughness of 4.30 m/km. Finally, the current conditions of a road through the PCI and IRI indicators allow us to determine the conditions in which we can transit on a certain road, in addition to indicating whether it requires road maintenance or not.