Euro Sand Ryolit AB
The core business of the company is crushing and sorting of rocks, as well as the sale of special stone productes with very good qualities. All production take place in the own quarry located in Dalsland at Tösse in Åmål municipality. The rock in the quarry is a fine crystalline Rhyolite volcanic rock with very good strength properties, which among other applications is used as aggregate in the asphalt with high abrasion resistance and good adhesion. The stone is also especially suitable from an environmental point of view, because of their low proportion of quartz and issuance of PM10 dust, especially when using studded tires.
Macadam for construction of railways is another of the products that requires high quality of the stone material. The macadam from quarry is of a very high strength and is current to railways for high-speed trains.
The quarry's location close to Åmål Port with a cargo capacity of 4,000 dwt means low transportation costs for shipments to ports in Sweden and the rest of Northern Europe. Access to the loading facility in Åmål train station is an effective alternative to trucking, especially regarding materials for railway construction.
"Surveys made at VTI suggests that both the choice of tyres the choice of coating and sand quality is of great importance for how much respirable dust produced by wear and tear".
More silent asphaltThe company has been working with operators on the Swedish market and developed a technology that, with its high-quality aggregate, Rhyolite 0-8 mm, in combination with a special bitumen, Nynas Endura F1, creates asphalt that can be laid in thin layer with high strength, low noise level and low emissions of PM10 dust.
To the right, pictures of pucks of asphalt after five years of traffic on freeways.
Here are some facts:
Prall value obtained from a method for hot mix asphalt measuring abrasion resistance, SS- EN 12697-16. Requirements from the Swedish road authorities are that prall value may not exceed 25 after five years of traffic on freeways and 28 for municipal streets.
In December 2012 we ordered, the NCC's operations at a laboratory at Tagene in Gothenburg, a measurement of the prall value for an asphalt mixture with Rhyolite 0-8 mm, Endura F1, rubber, cement and fibers. Prall value was 8.
A test was done afterwards with Rhyolite 0-8 mm and Endura F1.
Prall value became 12.
On the initiative of Åke Sandin, from the Traffic office in Gothenburg, was a control measurement with Rhyolite 8-11 mm, Tagene mm, Tagene 4-8 0-2 mm and Endura F1 done.
Prall value became 7.
At a laying of 25 mm asphalt in November 2013 was a mixture of Rhyolite 4-8 mm, Tagene 0-2 mm and Endura F1 tested.
Prall value was 14.