Field-Trial and Outdoor Chemical Aging Characterization of a Biosourced Clear Binder

This study focuses on synthetic clear binders used in the manufacture of colored roads. We present here an innovative formulation of a biosourced clear binder used to create colored road infrastructures with a low carbon footprint. We display both the validation of this biosourced formulation on a laboratory scale and the worksite resulting from its development. We also investigated the chemical aging of this type of binder using high-resolution mass spectrometry (HRMS) to understand the evolution of biosourced molecules under climatic exposure. This study brings hindsight on the degradation mechanisms specific to biobinders and highlights the need to anticipate the aging of these new binders.