2) The influence of water and load: for there contains considerable hydrophilic clay minerals in weathered rock filling subgrade filler, not only the swelling and disintegration of filling particles be accelerated by water, but also more secondary clay
minerals will be produced.
The decision to host Nadal's tournament opener on the secondary clay
court at Roland Garros has also prompted a furious reaction and some players, with the French number two Jo-Wilfried Tsonga saying that he hope's that it is okay for the world champion, the report added.
On the other hand the mineralogy study by XRD approach (buffer approach) shows that the main clay minerals of sediments is chlorite, besides other minerals such as Mika, Illite, Montmorillonite are shown as secondary clay
minerals in some samples .
These relate to dredging within the dock basin, the site's drainage system and a temporary secondary clay