Roads are the ''lifeline'' of the modern world. In order to withstand harsh environment and heavy traffic conditions their construction and maintenance require flexible and economical materials. Hot bitumen is mixed with aggregates, fillers and additives to create a range of surfaces suited for their individual requirements. In asphalt production bitumen plays a key role. The properties of paving bitumen and bituminous mixes can be improved by addition of certain additives or blends of additives. These additives are called “bitumen modifiers” and the bitumen premixed with these modifiers is known as “modified bitumen”.