Abstract: Agglomerates based on active charcoal and on binder exhibit a good resistance to disintegration in a liquid medium as well as an excellent resistance to crushing and an excellent thermostability up to 350° C. They are prepared by mixing active charcoal powder with a pore-protecting agent in gel form and then mixing with a binder, followed by the agglomeration, shaping and curing of the agglomerates obtained. They can be used as adsorption agents for the treatment, for the seperation or the purification of gases, and for the decoloration, purification and deodorization of liquids.

Abstract: The invention describes a novel material intended for use in public works, constituted by a mixture of granular, alluvial or clay soils, of hydrophilic polymers and cationic hydrophobating additives, wherein this material presents a high insensitivity to variations of ambient humidity and is intended in particular for use with building roads.