El profesor Miguel Ángel del Val, de la Universidad Politécnica de Madrid, nos explica en este vídeo la extensión de las mezclas asfálticas. Espero que os sea de utilidad.
Referencia:
YEPES, V. (2014). Maquinaria para la fabricación y puesta en obra de mezclas bituminosas. Apuntes de la Universitat Politècnica de València. Ref. 749.
La gestión sostenible de los pavimentos implica integrar aspectos económicos, técnicos y medioambientales en la toma de decisiones. A continuación, dejo el resumen y la referencia de un artículo que nos acaban de publicar al respecto. El artículo completo lo podéis solicitar a la siguiente dirección: https://www.researchgate.net/publication/291373081_Sustainable_Pavement_Management
ABSTRACT:
Sustainability, which is founded on reconciling economic, environmental, and social aspects, has become a major issue for infrastructure managers. The economic and environmental impacts of pavement maintenance are not negligible. More than $400 billion is invested each year globally in pavement construction and maintenance. These projects increase the environmental impacts of vehicle operation by 10%. Because maintenance should be technically appropriate, infrastructure managers must integrate technical, economic, and environmental aspects in the evaluation of maintenance alternatives over the life cycle of a pavement. However, these aspects are typically measured in units that are difficult to combine in the decision-making process. This research examined and compared methods for integrating technical, economic, and environmental aspects and aimed to assist highway agencies, researchers, and practitioners in integrating these aspects for the sustainable management of pavements. For this purpose, a set of maintenance alternatives for asphalt pavements was evaluated. Methods for integrating these aspects were explored, leading to recommendations for the most suitable methods for different scenarios. Based on this analysis, the analytic hierarchy process (AHP) is recommended when the number of alternatives is small. In these situations, the AHP yields results similar to those of the weighting-sum and multiattribute approaches, which are frequently used for intuitive selection. However, when the number of alternatives is large, the AHP becomes difficult to use, and the weighting-sum method is more appropriate.
Reference:
TORRES-MACHÍ, C.; CHAMORRO, A.; PELLICER, E.; YEPES, V.; VIDELA, C. (2015). Sustainable pavement management: Integrating economic, technical, and environmental aspects in decision making. Transportation Research Record: Journal of the Transportation Research Board, No. 2523, Transportation Research Board, Washington, D.C., 2015, pp. 56–63. DOI: 10.3141/2523-07
Os dejo a continuación la versión autor: