Abstract
To study the possibility of the appropriateness of artificial gravel made of the coal ash for the material for beach nourishment, the movement of the natural and artificial gravel of the same grain size under waves were investigated using a two-dimensional wave channel experiment. It was found that the berm height was reduced with greater foreshore slope in case of artificial gravel compared with that in natural gravel. Furthermore, the abrasion test of natural and artificial gravel was carried out using Los Angels' machine for abrasion. The artificial gravel was easy to subject to wave abrasion compared with that of natural gravel.
