ENGINEERED GRAVEL ROAD CONSTRUCTION

[INNOCENT TIBENDA]

design steps of grave roads.

• estimation of traffic, here only heavy vehicles exceeding 3 tonnes  are counted we call them commercial vehicles and the remaining vehicles less than 3 tonnes you will not count them.and finally cummulative equivalent  standard  axle load is determine for all design period  of the pavement.
• evaluation of the sugrade strength, you do sampling along the road and do soil tests including CBR test, atterberg limit test and then you detect the problem soil that needs special treatments and then pick the CBR class from the design manual.
• select the material types and pavement thickness by guide of the design manual.

ANY QUESTION YOU MAY ASIK.