A friendly with the environment pilot plan was part of the project of Road and Functional Adaptation of secondary lines and feeder roads of the Mass Transit System, SITM MIO, in the City of Cali, with the paving of streets and roads using the latest green technologies.
With our daily commitment to carry out works where progress and environment go hand in hand, in Meco we decided to recycle 2000 used vehicle tires; this raw material was later incorporated into the pavement, rather than being thrown away into nature.
This process began a few months ago, proving to be a challenge, since the work formula had to be figured out; logistics had to be coordinated and suitable areas had to be selected to serve in this pilot project for Metro Cali, which like other public entities in Colombia, are always seeking the widespread use of these technologies in public procurement.
On this occasion, 42B Street, between 36th and 38th streets was paved, along with 26th street between 47th and 46th roads, located in the east of the city.
In plant. The creation of a high-module pavement, with modified asphalt with recycled tire bead requires strict temperature control, factory production and pathway extension.
To ensure the efficiency and promptness of works, our staff worked with a continuous production plant where a bypass was fitted to the injection system to avoid affecting the asphalt pumps and pipes.
Special particle sizes were used, as well as the asphalt cement with added tire grain. This last procedure is performed when the cement supplier connects the plant system to the tank that includes a separate pump and injection and temperature controls.
There is an average temperature of 185° C, reached when injecting the asphalt at 195 ° C.