CEMEX is supplying concrete for the construction of the Las Glòries Tunnel road, one of the main traffic infrastructures in Barcelona. It is a HF-4.5/B / 20 concrete with a mixture of limestone and silica aggregate, which increases the wear resistance of the wearing course.
Given its location, the tunnel is subjected to intensive use of vehicle traffic. Some 90 000 light and heavy vehicles pass through this route every day, which has made the constructor demand concrete that allows the reduction of wear and tear of the infrastructure and extend its useful life, also achieving significant economic savings in both execution and maintenance.
Once the work is finished, the supply will reach 6000 m3 of concrete, which is manufactured and served from the CEMEX plant in Sagrera, a facility prepared to offer such a special mixture located about 3 km from the work.
The tunnel itself is almost 1000 m long and reaches a total length of 1770 m between ramps and accesses. The work consists of two independent tubes with unidirectional circulation that run at a depth ranging from 10 to 25 m below the surface grade. The infrastructure is being built below the four existing corridors: L1 Metro, R1 line from Maçanet-Massanes, R3/R4 (Manresa and Puigcerdà lines) and the Francia-Sants station line.
Before the end of the year
So far, the first phase of the project has been completed, about 525 linear m, and the second phase of the road has yet to be executed, which will be carried out during the months of April – May. It is planned that the supply of concrete for the construction of the tunnel will end in May and the complete work can be opened to the public in the fourth quarter of 2021. It is estimated that the infrastructure will open to road traffic in the direction of the city, towards Besós, at the beginning of September; while in the direction of entry, Llobregat direction, it will do so at the end of November.
Resilient and sustainable construction
These works represent another step for the company in its commitment to building resilient and sustainable urban infrastructures, which can cope with climate change and are durable and robust. This type of infrastructure has become a necessity and is key to moving towards a smart city model of the future.
In the same way, the construction of infrastructures, such as this tunnel, is essential for the economic reactivation of the country. After the stoppage caused by the coronavirus pandemic, these actions, carried out in both public and private spaces, are of special importance for promoting employment in the construction sector, always in safe conditions.
Read the article online at: https://www.worldcement.com/europe-cis/12042021/cemex-to-supply-concrete-for-one-of-barcelonas-main-traffic-infrastructures/
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