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Sulstar® DA

Innovations in road construction

We offer road asphalt manufacturers and mineral-asphalt mixing plants, Sulstar® DA – an additive to mineral-asphalt mixes lowering MMA manufacturing costs while simultaneously increasing their usability parameters. Sulstar® DA is an innovative thermoplastic MMA modifier, based on sulphur polymer Sulstar® with the addition of an anti-inhalation mineral medium. The manufacturing cost of Sulstar® DA is over 50% lower than the asphalt price, therefore by substituting 40% of the asphalt with Sulstarem® DA substantial savings are obtained and the road has increased usability parameters.

Advantages

Lowering of costs of the bituminous binder and road construction costs

Greater durability obtained by

a layer with resistance to curling
the elimination of occurrence of ice lenses
the increase of resistance to rut formation

The Sulstar® DA technology can be successfully applied using standard road construction equipment, it is only necessary to adapt the way of monitoring the polymer dosing on WMB

The Sulstar® technology enables the utilization of wastes for the production of road subgrade layers saving full value aggregates

Technical data

Reference MMA usability properties with and without the use of Sulstar® DA

Feature	Required AC11S	Results of MMA tests	Results of MMA test modified Sulstar® DA
Content of hollow spaces (%)	2-4	2,408	2,422
Indirect tensile strength indicator ITSR (%)	≥ 90	92	94
Resistance to permanent deformations, average rut diagram inclination WTSAIR (mm / 103 cycles) max.	0,15	0,13	0,02
Average rut depth proportion PRDAIR(%) max.	9,0	7,2	5,5