Experience and Sustainability of Ultra-thin Concrete Pavements on Basic Roads
Keywords:
Sustainability, Basic Roads, Road MaintenanceAbstract
The technology of ultradelgados concrete pavements emerged as an alternative rigid pavement for low-traffic roads used by trucks and buses. It is generally applied as an alternative to double surface treatments in areas with high slopes or sharp curves. This technology involves placing a structural fiber-reinforced concrete slab directly over highly compacted granular roads due to historical vehicle and machinery traffic. These ultradelgados pavements have a thickness of between 8 and 12 cm and do not require the installation of a subbase for support.
Given the characteristics of this rigid pavement solution (which does not incorporate a granular subbase), which uses low pavement thicknesses and involves fewer interventions compared to asphalt solutions, it is intended to demonstrate that this basic road solution reduces carbon footprint compared to a double surface treatment solution. To achieve this objective, a simulation was developed using a software specifically designed for this purpose, called Athena Pavement LCA, and total emissions were compared over a set time horizon.
The results of this simulation show that the ultradelgados pavement solution reduces the carbon footprint by 25% compared to a double surface treatment solution.
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Copyright (c) 2024 Carlos Binder , Juan Pablo Covarrubias , Pelayo del Rio
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