EVALUATION OF PATHOLOGICAL MANIFESTATIONS AND CONSERVATION STATUS OF REINFORCED CONCRETE VIADUCTS IN THE MUNICIPALITY OF LUANDA

Abstract

This study aimed to evaluate the pathological manifestations and conservation status of four reinforced concrete viaducts in the Municipality of Luanda, aged over 21 years. The methodology was based on detailed visual inspections and the application of the DNIT evaluation method, which assigns scores from 1 to 5 to structural and non-structural elements. The results indicated that all viaducts received a final score of 3, corresponding to "apparently good stability conditions". The main pathologies identified include cracking, concrete delamination, exposure of reinforcements, degradation of expansion joints, deficiencies in signaling and drainage, among others. It is concluded that, although the viaducts are in acceptable conditions, preventive and corrective maintenance interventions are necessary to ensure their durability and safety. The study reinforces the importance of patrimonial management systems for special works of art, aligning with international best practices.

DOI: https://doi.org/10.56238/sevened2025.036-112