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ABSTRACT
This study examines particulate emissions during the milling of road surfaces reinforced with fiberglass grids. Reinforcement results in a slight increase in particulate emissions below 100 nm, but a significant reduction in emissions of particles larger than the micrometer. Elemental analysis further reveals that particulate emissions from the reinforced road surfaces have a composition that differs from that of aggregates: with stronger components associated with grids - Ca and Mg - and/or milling machine teeth: Fe, S and to a lesser extent Mg. Finally, depending on the emission dynamics and wind direction, we observed an acute exposure of the driver.
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Read the articleAUTHORS
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Laurence LUMIERE: Senior Technician, Ministry of Sustainable Development - Laboratoire Environnement-Aménagement, Sécurité et Eco-conception (EASE), Gustave Eiffel University, Marne-la-Vallée, France
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Bogdan MURESAN: Research fellow at Gustave Eiffel University - Laboratoire Environnement-Aménagement, Sécurité et Eco-conception (EASE), Gustave Eiffel University, Marne-la-Vallée, France
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Erwann RAYSSAC: Senior technician, Ministry of Sustainable Development - Geomaterials and Environmental Interactions Laboratory (GIE), Gustave Eiffel University, Marne-la-Vallée, France
INTRODUCTION
The use of glass fiber grids is designed to enhance the mechanical behavior and durability of pavements ( to ). The addition of grids has many advantages. They often constitute only a tiny fraction of the mass of materials needed to build the pavement: around 1% ( to ). These grids would make it possible to refine road layers by several centimetres, thereby reducing the quantities of materials consumed and the associated transport ( to ). Finally, they are made up of chemical compounds that are relatively inert and of little concern from a life-cycle analysis point of view: such as silicon or calcium. Despite these advantages, many questions remain (
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KEYWORDS
glass fibers | exposure | Road surface | milling operation | particulate emissions
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Particulate emissions from planing reinforced pavement boards
Materials and methods
Bibliography
Directory
Suppliers (non-exhaustive list)
WIRTGEN (2017). W 150/W 150i cold milling machine data sheet. Wirtgen Group GmbH. 8 p. :
https://www.soloc.fr/wp-content/mediafiles/2016/10/Fiche-technique-Wirtgen-W-150-W-150i.pdf
ECOMESURE (2008). Low-pressure impactor...
Standards and norms
(Non-exhaustive list)
- Bituminous mixes – Material specifications – Part 1: bituminous mixes. AFNOR. - NF EN 13108-1 - 2007
- Bitumen and bituminous binders – Road bitumen specifications. AFNOR. - NF EN 12591 - 2009
- Structural design of road pavements – Application to new pavements – Pavements – Earthworks – Sizing and terminology – Checking the structural design of road pavements...
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