Definition particules de matière végétale sèche, préparées mécaniquement, dont la taille est de l'ordre du centimètre (C. Vauge, Lex. des énergies renouvelables) Reference C.Vauge,Lex.des énergies renouvelables
INDUSTRY|building and public works · PRODUCTION, TECHNOLOGY AND RESEARCH|technology and technical regulations
Definition 1) any mass of mineral particles,e.g.sand,river shingle,broken stone or brick,that a suitable binder can combine into a coherent whole 2) "Aggregate : Hard materials such as sand, gravel, and crushed stone, used for mixing with cementing or bituminous material to form concrete, mortar, or asphalt, or used alone as in railroad ballast, road base, landscaping rock, or graded fill." Reference 'Terminology of Forest Science, Technology, Practice, and Products'. F.C. Ford-Robertson (ed.). Society of American Foresters. 1971
Definition ensemble de particules minérales-sable, galets, pierres ou briques cassées, par exemple-qu'un liant approprié peut transformer (agglomérer) en un tout suffisamment cohérent Reference METRO