جستجوی مقالات مرتبط با کلیدواژه « preventive management » در نشریات گروه « عمران »

One of the biggest infrastructural assets of the country is the road. Due to the heavy costs of repair and improvement, preventive methods and increasing the life of the pavement can play a special role in reducing the costs of the pavement life cycle. At present, according to the goals set in the road pavement management system (PMS) special attention has been paid to the implementation of chip seal and fog seal protection asphalts. Accordingly, in this study, a review of research on chip seals and fog seals such as evaluation tests and proposed quality control methods, review and comparison of implementation methods, use of additives, and environmentally friendly materials has taken. Then, based on the values of the pavement management system indicators of the roads and the classification of methods for improving the pavement condition index (PCI), the international roughness index (IRI) of the roads in Bushehr province and predicting the estimated cost ratio of operations of each category, the performance of chip seal and fog seal have been studied in a number of major road in Bushehr province. the review a shows that, in order to improve the performance and reduce the executive problems, It is beneficial to use environmentally friendly additives and modifiers. Evaluation and quality control of materials and execution also play an important role in the final performance of chip seals and fog seals. Finally, the implementation of chip seal and fog seal protective layers is effective in reducing the cost of pavement life.