1.to stable the bed of railway and road
2.to bear the bed of road
3.to bear the loading dykes and walls
4.to administer shallow water and river
5.to support pipeline and sewer
6.to prevent landslide and to be used as compound walls to support loading
7.to be used in dependent walls,wharfs and bank and so on
8.to govern sand,beach,river bank and riverbed