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Research and innovation | REF: RE185 V1

Particulate emissions from the milling of reinforced road surfaces

Authors: Laurence LUMIERE, Bogdan MURESAN, Erwann RAYSSAC

Publication date: August 10, 2021 | Lire en français

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    Overview

    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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    AUTHORS

    • Laurence LUMIERE: Senior Technician, Ministry of Sustainable Development - Laboratoire Environnement-Aménagement, Sécurité et Eco-conception (EASE), Gustave Eiffel University, Marne-la-Vallée, France

    • Bogdan MURESAN: Research fellow at Gustave Eiffel University - Laboratoire Environnement-Aménagement, Sécurité et Eco-conception (EASE), Gustave Eiffel University, Marne-la-Vallée, France

    • 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 (

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    KEYWORDS

    glass fibers   |   exposure   |   Road surface   |   milling operation   |   particulate emissions

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