ATS STONE LTD.

HEAD OFFICE


1303 SOFIA - BULGARIA

37 Pozitano Str.

t: +359 2 939 08 46

f: +359 2 939 08 40

office@atsstone.com

sales@atsstone.com

Deposits

The deposit “Ravnishte” is located 2.5 km north of the village of Varbeshnica, Vratza district. The deposit is located in the upper cretaceous basin in which are located the quarries for Vratza limestone. Deposit “Ravnishte” covers area of 0.2 km2 and has calculated reserves that can assure intensive exploitation for more than 25 years, with option to enlarge them.

 

Limestone quarry "Ravnishte" - quarries for Vratza limestone 

 

The prospecting works for this deposit started in 2004. In 2007 as a result of our constant effort we finish the study of the new discovered deposit.

The deposit is well studied, with geological mapping and more than 800 m core drilling. The collected data were used for creation of digital model. This model allows us to plane the extraction works and to achieve the highest results.

Presently we lead exploitation works on two working benches and one more bench is in process of formation. The deposit is equipped with new machines that allow us to apply the modern technologies for extraction of dimensional stones. The well developed extraction works allow us to manage the quality of the stone. In this way we can assure our clients with the quantity and the quality that they require.

The quarry is located into the north bed of Mezdra syncline, which is formed of upper cretaceous maestrichtian age calciferous rocks. The limestone is defined as micritic to biomicritic, calcitic with relatively high content of SiO2. The quarry has capacity of 5 000 m3 gang saw blocks per annum.
The basic method of extraction is cutting with diamond wire saws.

PRODUCTION DETAILS

• BLOCKS:
3 - 9 m³, The technology of extraction, allows production of blocks with custom dimensions


• ON CUSTOMER’S DEMAND:
SLABS with different surface finishing: raw sawn, honed, polished, antiqued, bush-hammered, dimensions: max. height: 170 cm, max. length: 300 cm; min thickness is 2 cm.




• CUT-TO-SIZE ELEMENTS
for interior & exterior use with different surface finishing: honed, polished, antiqued (brushed), bush-hammered, rustic face, split-face




• MASSIVES
Vratza limestone

SPECIFICATIONS / AVERAGE VALUES

Density 2.25 - 2.30 g/cm³
Specific density 2.67 - 2.70 g/cm³
Pore volume 13.86 - 16.67%
Pore coefficient 0.161 - 0.200%
Water absorption 2.55 – 3.66%
Compressive strength in dry conditions 795.80 – 825.00 x105 Ра
Compressive strength in water saturation 692.80 – 733.00 x105 Ра
Compressive strength in frozen conditions 657.10 – 673.50 x105 Ра
Frost-resistance coefficient 0.80 - 0.85
Abrasion coefficient /De Valt/ 3,8 – 4.0 %
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