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Angola is today a country under reconstruction, which has a transportation system supported mainly by highways. The main network of national roads includes about 25,000 km of roads. In order to improve the circulation of people, goods, and services, the National Road Institute of Angola (INEA) has been promoting programs for the construction, requalification and conservation of the country’s roads. According to a recent report, about 16,000 km of the main network is currently under repair and about 11,000 km have been recently repaired and asphalted. One of the most common problems affecting flexible pavements today is the appearance of surface deformation before they reach their service life. There have been many causes, including design errors, construction errors, insufficient maintenance, and conservation, combined with excessive vehicle loads and bad weather that separately or together can accelerate this process and compromise the normal operation of the road. The purpose of surveying surface defects is to evaluate the state of conservation of asphalt pavements and support the diagnosis of the functional situation to support the definition of a technically appropriate solution, either to correct functional errors or to correct structural errors. This paper aims to characterize all the existing pathologies in the section of Avenida 11 de Novembro - Calemba 2 to quantify and classify these pathologies and then take the necessary measures for prevention and rehabilitation. For its execution, an overall assessment of the functional quality of the road was made in the field. The parameters used for this type of evaluation were splitting, deformations, surface defects and repairs. The results indicate that although insufficient investments in maintenance and conservation of the roads, as well as the associated tropical climate, play a preponderant role, it seems that the main problem is associated with wear from the lack of adhesion between the binder and the aggregate stands out and overload of vehicles. It is expected that this work might serve as a basis for a comprehensive survey and evaluation of pavements in Angola to improve their overall efficiencies and functionalities.

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Survey and Evaluation of Pathologies in a Flexible Pavement in Luanda

  • 会议论文

  • 发表日期：

    2026年

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  • Felisberto Queta,
  • Artur Miguel,
  • Miguel Clemente

摘要

Angola is today a country under reconstruction, which has a transportation system supported mainly by highways. The main network of national roads includes about 25,000 km of roads. In order to improve the circulation of people, goods, and services, the National Road Institute of Angola (INEA) has been promoting programs for the construction, requalification and conservation of the country’s roads. According to a recent report, about 16,000 km of the main network is currently under repair and about 11,000 km have been recently repaired and asphalted. One of the most common problems affecting flexible pavements today is the appearance of surface deformation before they reach their service life. There have been many causes, including design errors, construction errors, insufficient maintenance, and conservation, combined with excessive vehicle loads and bad weather that separately or together can accelerate this process and compromise the normal operation of the road. The purpose of surveying surface defects is to evaluate the state of conservation of asphalt pavements and support the diagnosis of the functional situation to support the definition of a technically appropriate solution, either to correct functional errors or to correct structural errors. This paper aims to characterize all the existing pathologies in the section of Avenida 11 de Novembro - Calemba 2 to quantify and classify these pathologies and then take the necessary measures for prevention and rehabilitation. For its execution, an overall assessment of the functional quality of the road was made in the field. The parameters used for this type of evaluation were splitting, deformations, surface defects and repairs. The results indicate that although insufficient investments in maintenance and conservation of the roads, as well as the associated tropical climate, play a preponderant role, it seems that the main problem is associated with wear from the lack of adhesion between the binder and the aggregate stands out and overload of vehicles. It is expected that this work might serve as a basis for a comprehensive survey and evaluation of pavements in Angola to improve their overall efficiencies and functionalities.