When roads become unusable due to their age, the asphalt must be renewed. Correct recycling of asphalt is essential for ensuring sustainable road transport and minimizing waste, especially given that recycled asphalt significantly reduces carbon dioxide (CO2) emissions.
To make recycled asphalt hard, the project team is refining the characterization of the recovered asphalt to determine how it can best be recycled. It also analyzes the potential use of reclaimed material and conducts risk assessments and life cycle analyzes (LCAs) of reclaimed asphalt. It is also considering disposal routes and alternative construction methods from an environmental point of view. The reclaimed asphalt recycling detailed study also covers milling procedures, asphalt treatment, damage sensitivity, dismantling strategies, environmental considerations, applicable industrial processes, and cost-effectiveness.
The project has already resulted in recommendations on the characterization of recovered asphalt, evaluated the relevant test methods, established mixing procedures, and evaluated the performance of these mixtures.
The project also developed models and software to assess the performance of asphalt mixtures containing recycled asphalt in order to optimize road performance. Conclusions emerged from the study and the risk assessment, such as the levels of hazardous compounds emanating from recycled asphalt. These were found to be much lower than the indicative values present in the groundwater table, except for the asphalt, which contained tar.
In addition, ACV indicated more environmentally friendly recycling methods that could be adopted. Progress in this direction has been published on the recycled asphalt to optimize road performance. Conclusions emerged from the study and the risk assessment, such as the levels of hazardous compounds emanating from recycled asphalt. These were found to be much lower than the indicative values present in the groundwater table, except for the asphalt, which contained tar.
Overall, the project aims to improve recyclability and increase the energy efficiency of asphalt pavements with an ambitious target of 99%, a percentage significantly higher than the current recycling of asphalt. These results have been communicated to decision-makers, infrastructure managers, government institutions, and standardization bodies and have been disseminated through conferences and professional networks. The RE-ROAD project undoubtedly represents an important step in making road construction more sustainable on a scale and in increasing the sustainable development of the transport sector.
Asphalt recycling could soon become a reality. For years, the State has been considering the possibility of introducing this project, which would make it possible to make significant savings on bitumen. Asked by the express, the Minister of Public Infrastructure and Transport explains that a firm has offered to carry out tests. A decision should soon be taken on this matter.
Asphalt recycling, which currently does not exist, is " a new technique commonly used in other countries. This removes a layer of about 10 cm from the road surface and grinds the bitumen by adding chemicals to it. This substance is reused for paving.
To add that, the same method is used, but rubber is added to the bitumen at the time of grinding.
The current method of paving has shortcomings. For the time being, the Road Development Authority is in charge of the paving of the roads, and it is included in the maintenance contract. When cracks or holes appear on the roads, it just applies a new layer of bitumen.
However, this system does not solve the problem of cracks, according to him, because as soon as it rains, water accumulates between the two layers of asphalt. As a result, the asphalt is cracked again. In addition, adding a new layer causes a level problem. As a result, in some places, “ the sidewalk is lower than the road.”
|Cedar Hill||Cedar Park||Channelview|
|Edinburg||El Campo||El Paso|
|Fate||Flower Mound||Forest Hill|
|Forney||Fort Hood||Fort Worth|
|Glenn Heights||Grand Prairie||Grapevine|
|Haltom City||Harker Heights||Harlingen|
|Anthem||Apache Junction||Arizona City|
|Camp Verde||Casa Grande||Casas Adobes|
|Catalina Foothills||Chandler||Chino Valley|
|Drexel Heights||El Mirage||Eloy|
|Fort Mohave||Fortuna Foothills||Fountain Hills|
|Kingman||Lake Havasu City||Marana|
|Maricopa||Mesa||New Kingman Butler|
|New River||Nogales||Oro Valley|
|Queen Creek||Rio Rico||Saddlebrooke|
|Sahuarita||San Luis||San Tan Valley|
|Sierra Vista||Sierra Vista Southeast||Somerton|
|Sun City||Sun City West||Sun Lakes|
|Valencia West||Verde Village||Yuma|
|Texarkana||Texas City||The Colony|
|The Woodlands||Timberwood Park||Tomball|
|Trophy Club||Tyler||Universal City|
|West Odessa||West University Place||White Settlement|
|Boulder City||Carson City||Elko|
|Sparks||Spring Creek||Spring Valley|
|Summerlin South||Sunrise Manor||Sun Valley|
|Hidalgo||Highland Village||Horizon City|
|Lake Jackson||Lakeway||La Marque|
|League City||Leander||Leon Valley|
|Mission||Mission Bend||Missouri City|
|Nederland||New Braunfels||New Territory|
|North Richland Hills||Odessa||Orange|
|Port Arthur||Portland||Port Lavaca|
|Richmond||Rio Grande City||Robinson|
|Saginaw||San Angelo||San Antonio|
|San Benito||San Juan||San Marcos|
|Sugar Land||Sulphur Springs||Sweetwater|