FD P18-464

Concrete - Provisions for the prevention of alkali-silica reaction

Le présent document donne des dispositions destinées à prévenir les phénomènes d'alcali-réaction et les désordres qui en résultent pour les ouvrages y compris les bâtiments. Il ne traite pas des mortiers. Il complète les dispositions normatives visant à assurer la durabilité du béton dans les ouvrages, en particulier celles de la norme NF EN 206/CN ou celles des normes de produits préfabriqués en béton Le présent document concerne tous les types de granulats naturels et recyclés conformes à la norme NF P 18-545, Article 10. Le présent document définit le classement des ouvrages en 3 catégories représentatives du niveau de risque acceptable pour un ouvrage donné vis-à-vis de l'alcali-réaction, et définit 3 classes d'exposition à l'environnement climatique. Il en déduit 3 niveaux de prévention applicables aux types d'ouvrages ou parties d'ouvrages et oriente vers la (ou les) solution (s) possible (s).

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