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. Allure-typique-d-'une-courbe-de-compactage, L'optimum Proctor correspondàcorrespond`correspondà la teneur en eau qui permet d'obtenir la masse volumique s` eche maximale, pour un sol donné, un mode de compactage et uné energie de compactage donnés

. Seville, en traits pleins, pour des grains de même taille, en pointillés, pour une aspérité de taille caractéristique 0, 1 µm en contact avec un plan. La force de Van der Waals est déterminée pour une constante de Hamaker A = 6, 5.10 ?20 J (cas du quartz) et des distances entre particules variant entre 1, 65Å65?65Å et 4, 0 ? A. La force de capillarité est estiméè a sa valeur maximale, lorsque les grains sont en contact : F capillaire = 2 ? R ?, avec ? = 73.10 ?3 N.m ?1 (cas de l'eau) La forcé electrostatique est considéréè a son intensité maximale (charge de signe opposé), pour une charge surfacique de 10 µCm ?2, Comparaison des intensités de différentes forces interparticulaires pour des contacts ponctuels, p.17, 2000.

.. Effets-de-la-cohésion-par-capillaritéeau, (a) billes de verre liées par un pont liquide constitué d'eau, (b) ´ echantillon composé de billes de verre de 1, 5 mm de diamètre maintenues par des ponts liquides constitués d'

. Comparaison-du-modèle-théorique-avec-les-résultats-de-willett, obtenus pour des ponts liquides de volume V réalisés avec une huile silicone de tension superficielle ? = 20, 6.10 ?3 N/m pour les rayons de billes suivant : (a) R 1 = 2, 381 mm et R 2 = 2, 381 mm (soit r = 1), (b) R 1 = 1, 588 mm et R 2 = 2, pp.381-381, 2000.