نوع مقاله : مقاله پژوهشی
موضوعات
عنوان مقاله English
نویسندگان English
Looking at the guidelines for evaluating the quality and technical specifications of implemented operations issued by the national planning and budget organization in 2019 under the title of criterion 773 and the tables attached to it, it is clear that the asphalt sand item, despite having the highest unit price in the price index of roads and airport runways, and especially road maintenance, compared to other asphalt concrete items such as binder and topcoat, and despite having various acceptance criteria and characteristics (such as grain size, bitumen percentage, strength, fracture, percentage of void space, filler to effective bitumen ratio, and density), unfortunately lacks any control and evaluation criteria. Given the need to increase the quality level of roads, improve safety performance, and ensure maximum government benefits in comparison with the limited budget allocation for construction projects, the need to define and predict control criteria and payment coefficients in this area is inevitable. Therefore, in this regard, an attempt has been made to compensate for this lack of a circular in the current research, while citing the criteria contained in the regulations and publications governing the country's technical and administrative system and adapting it to the theoretical policy and calculation method of the tables of publication 773, and to obtain as many grounds and prerequisites as possible to increase the efficiency and effectiveness in improvements and improve the lifespan of repairs of damages and the relative welfare of the consumer community from the country's roads. It should be noted that the proposal to design and present the payment coefficient and control penalties for asphalt sand, taking into account its sensitivity and importance on the one hand and the absence of such a criterion country so far, is presented for the first time at the level of the technical and administrative system.
کلیدواژهها English