
How from oxidized bitumen 115/15 can make bitumen 60/70
By adding solvent and heating the media you can back to one stage before which has been bitumen 60/70.Bitumen 115/15 already taken the hydrocarbon so if you add into and mix it then bitumen 60/70 will appear.
For more information : https://atdmco.com/oxidized-bitumen-115-15/