Thread: Component shortage

Its not the pavement thats the problem. Its gonna fail sure as night follows day, cause the road transport lobby got govt to permit trucks to go to 55Tonne, instead of remain at 44 tonne.

Our roading design post WWII has never factored in 55 tonne combined weights. So the sub base, base course and top course are not suficiently strong enough to resist deformation from those heavy axles being passed down through the pavement.

They closed the Desert road a year ago during the nights, to apply magic asphaltic concrete pavements, but did bugger all to the undedrlying base course: result, fucked sections of new pavement in under six months. Roads weeping water cause they never addressed the base issue. Old roading engineers maxum "Dirt plus water = mud".

One 'H' rated truck and trailer does as much damage as 8000 passes of a 1500kg car. And thats only to the pavement. cars don't have any meaningful impact on Basecourse structures. Trucks do.