Sulphur containing additive for making bitumen paving mixtures

A sulphur containing additive for bitumen paving mixtures, said sulphur containing additive comprising:

• a. sulphur;
• b. a mixture of metal oxides;
• and
• c. optionally, at least one metal sulphate,
• wherein said mixture of metal oxides comprises calcium oxide in an amount in the range of 50 weight % to 60 weight %, silicon dioxide in an amount in the range of 25 weight % to 30 weight %, aluminium oxide in an amount in the range of 1 weight % to 2 weight %, and ferric oxide in an amount in the range of 8 weight % to 10 weight %.