Modified bituminis est addere externa admissura (modifiers) ut Flexilis, resinae, altum mysterium polymers, subtiliter terram rubber pulveris aut alias, aut mensuras superiores et bitumen mixtisque in emendet et emendari potest esse melior.

Sunt duo mechanisms ad modifying bitumen. Unum est mutare chemical compositionem bitumen, et alterum est ad determinandum modifier aequaliter distribuit in bitumine formare quaedam spatia network structuram.
Flexilis et Thermoplastic Elastomer mutatio bituminis
Including: natural rubber modified asphalt, SBS modified asphalt (the most widely used), styrene-butadiene rubber modified asphalt, chloroprene rubber modified asphalt, butyl rubber modified asphalt, butyl rubber modified asphalt, waste rubber and regeneration Rubber modified asphalt, other rubber modified asphalt (such as ethylene propylene rubber, nitrile Flexilis, etc.). Plastic et synthetica resin mutatio bituminis
Comprehendo: Polyethylene mutatio Bituminis, ethylene-Vinyl Acetate polymer mutatio, Polystyrene Modified bitumen, Courtin resin mutatio bituminis, epoxy resin mutatio bitumen, α-olefin polymer mutatio, α-olefin polymer modificatio bitumen, α-olefin polymer modificatio bitumen, α-olefin polymer modificatio bituminis.
Miscent polymer mutatio bituminis
Duo vel Polymers addantur ad bitumen simul ad mutare bituminis. Duo vel Polymerorum de quibus hic potest esse duas separata polymers, aut potest esse ita dicitur polymer Alloy quae mixtum in antecessum formare polymer interpenetrating elit.