3000 Vratza, East Industrial Area

Bulgaria

+359 877 726349

Vratsa Limestone

Vratza has the characteristics making it limestone unique for aesthetic value, use versatility and technical performance. Vratza is a compact, homogenous stone, sedate in its warm cream color and durable through time and indubitably immune to rain and frost. Vratza limestone features great aesthetic uniformity, both in color and in pattern.

The stone has absolutely safe physical and stress resistance parameters. In many ways they are superior to the stones of a similar type. These parameters make for full- field use of it both indoors and out, even in environmental conditions considered harsh for calcareous materials.Vrtaza stone has no need of reinforcement of resin treatment.

A lot of projects around the world have been successfully realized with Vratza limestone, used in various types of products and in the most varied climatic- environmental conditions.Vratza limestone has always been considered a material suited even for prestigious designs destined to last through time.

A Vein 1

Vratsa limestone A Vein 1

Cream Flower – Vein

Vratza limestone Cream Flower Vein

Cream Flower

Vratza limestone Cream Flower

Cream Color

Vratsa Cream Color

Cream

Vratsa limestone Cream

Cream Light

vratsa limestone rep

Vratza Grey

vratsa limestone vratza grey

Vratza Beige

vratza-beige

Classic

vratza-classic

Vratza Grey – Vein Cut

User comments

Technical  Information

Physical properties
Characteristics
  Value
Density
g/cm³ 2.37
Specific density
g/cm³ 2.70
Pore volume
% 12.22
Pore coefficient
% 0.139
Water absorption
% 3.15
Compressive strength in dry conditions x105 Ра 831,1
Compressive strength in water saturation x105 Ра 748,8
Compressive strength in frozen conditions x105 Ра 699,5
Frost-resistance coefficient - 0.84
Wearing according "Deval" % 4.20
Loose of weight after 25 cycles of freezing % 0,08

Mineralogical composition (weight%)
Characteristics
  Value
Calcite
% 93
Dolomite
Quartz
% 3,80

Chemical analysis (weight%)
Characteristics
  Value
CaO
% 48,00
MgO
% 0,40
SiO2
% 16,80
Fe2O3
% 0,30
Al2O3
% 0,80

Mechanical Properties - DRY condition
Characteristics
  Value
Compresive strength parallel - dry (ASTM C170)
psi 13,521
Modulus of Rupture parallel - dry (ATSM C99)
psi 1,949
Flexural Strength dry perpendicular (ASTM C880)
psi 1,851
Bent Bolt Anchor Pullout test (ASTM C1354)
psi 1,366
Pin Clip Anchor Pullout test (ASTM C1354)
psi 557

*For the different types, the values of these parameters are slightly different, but they are constant in the types themselves.

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