We own two stone finds, as follows:

Stone quarry „Šuplji kamen“ - Špaj, Crvena reka near Bela Palanka

1. Making asphalt mixtures for fabrication of:
   
   • roadway surfacing – asphalt-concrete wearing courses, in hot procedure, on roads with light groups of traffic load (SRPS U.E4.014/1990)
   • roadway structures base courses of bituminous materials, in hot procedure, on roads  with all groups of traffic loads (SRPS U.E4.021/1986)
   • subbase of bitumenous material road structures, in hot procedure (SRPS U.E9.028/1980)
2. Cement-concrete mixtures for fabrication of:
   
   • cement-concrete (SRPS B.B2.009/1986)
   • bottom layers of cement-concrete roadway slab (SRPS U.E3.020/1987)
3. Sub-base for fabrication of:
   
   • mechanically stabilized subbases of roadway structures
4. Sub-bases 0/31.5mm and 0/45mm for fabrication of:
   
   • railway structure protective layer, from aggregates of 0/31.5mm and 0/45mm granulation
5. Broken stone
   
   • II class for fabrication of railway line ballast bed for train speeds V<160 km/h for passenger transportation and for freight transportation up to V<120 km/h
6. As hydrotechnical stone for building river regulation structures in the form of:
   
   • semi-treated stone for consolidated bank slopes lining
   • broken stone of different sizes for fabrication of “feet“- foundation and body of regulation structures and other hydrotechnical structures.
7. Setting up (masonry) works
   
   • in structural engineering and building design and construction.

Stone quarry „Tijovac“ by the road between Svrljig and Knjaževac

1. Asphalt mixtures making for fabrication of:
   
   • roadway ballast – asphalt-concrete wearing courses, in hot procedure, on roads with light groups of traffic load (SRPS U.E4.014/1990)
   • roadway structures base courses of bituminous materials, in hot procedure, on roads  with all groups of traffic loads (SRPS U.E4.021/1986)
   • subbase of bitumenous material roadway structures, in hot procedure  (SRPS U.E9.028/1980)
2. Cement-concrete mixtures for fabrication of:
   
   • cement-concrete (not reinforced and reinforced and prestressed, exposed to erosion  and wear (SRPS B.B2.009/1986)
   • top layers of cement-concrete roadway slab (SRPS U.E3.020/1987)
   • bottom layers of  cement-concrete roadway slab (SRPS U.E3.020/1987)
3. Sub-base for fabrication of:
   
   • mechanically stabilized subbases of roadway structures from 0/63mm and 0/31mm aggregates granulation
   • roadway structures bearing beds from cement stabilized materials and similar hydraulic binder - 0/31,5mm and 0/50mm granulation aggregate
4. Sub base 0/31.5mm and 0/45mm for fabrication of:
   
   • railway structure  protective layer, from 0/31.5mm and 0/45mm granulation aggregate
5. Broken stone
   
   • II class for fabrication of railway line ballast bed for train speeds V<160 km/h for passenger transportation and for freight transportation up to V<120 km/h
6. As hydrotechnical stone for building river regulation structures in the form of:
   
   • treated – cut-stone for quays lining and banks consolidation in settled places
   • semi-treated stone for consolidated bank slopes lining
   • broken stone of different sizes for fabrication of “feet“- foundation and body of regulation structures and other hydrotechnical structures
7. Setting up (masonry) works
   
   • in structural engineering and building design and construction.