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PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

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Term of the Road Dictionary

adsorption

Language : PIARC Road Dictionary / English
Theme : Roads Materials Binders
Definition : Superficial penetration of a body contained in a liquid or gas phase into the separation surface of this phase by another phase which may be solid, liquid or gas. Note: this is a reversible process, to be distinguished from absorption.