Reabilitação de estrada em pavimento flexível

Abstract

The Mozambican national road network is practically at the beginning of its construction, with most of it being carried out using flexible pavements and in a state of degradation requiring rehabilitation. This rehabilitation must be done based on a good selection of the rehabilitation and conservation process based on technical, economic and environmental aspects. The construction and rehabilitation of roads is a very important factor in the development of any country, as it is through these actions that expansion and growth plans are made. Taking these aspects into account, there was a need to invest in the creation of new roads and the rehabilitation of old ones, maintaining quality and life span, to ensure an increase in the level of growth and comfort of citizens. Flexible road pavements are subject to different types of actions, which cause their progressive degradation, through ruin mechanisms, resulting in various pathologies, the evolution of which results in their final ruin. It is with this in mind that the work aimed at evaluating the pathologies, construction methods and, finally, the rehabilitation of the pavement that connects Av. União africana and Av. Do Trabalho was developed. The objective of this work is to present different types of pathologies, existing rehabilitation methods and finally, most importantly, a description of the activities carried out in the rehabilitation of the pavement in question. For this purpose, images of the different stages of rehabilitation were taken and attached to the description made in chapter 4, and exhaustive research was carried out on the types of pathologies and types of rehabilitation.