Features
SprimontBlue® is a very high-quality blue stone. Also known as “petit granit”, it is characterized by the presence of numerous fossil debris, cemented by a microcrystalline matrix containing finely divided carbon. The fossils give fresh fractures a shimmering appearance in the light. Crinoids, corals, and shells, which are the lighter elements, stand out from a darker mass, varying from light grey to black, including a bluish range, depending on the finish.
The stone lightens with exposure and weathering due to superficial leaching of intercalated carbon.
96% calcite, traces of dolomite, quartz, and pyrite
| Bulk Density | 2687 kg/m³ |
|---|---|
| Porosity | 0.28% vol |
| Sound Propagation Velocity | 5527 m/s |
| Compressive Strength | 157.9 N/mm² |
|---|---|
| Flexural Strength | 16.7 N/mm² |
| Static Modulus of Elasticity | 86.9 GPa |
| Wear Resistance | 2.87 mm/1000 m |
| Frost Resistance | 0,0 |
| Heat Transfer Coefficient | 2.9 W/mK |
| Thermal Expansion Coefficient | 0.00046 mm/mK |
| Sensitivity to Atmospheric Pollutants | 0,0 |
Sizes and Finishes
A Unique Belgian Blue Stone
The numerous sizes and finishes offer an advantage for using this Belgian blue stone both indoors and outdoors, or even as a work of art.
It is perfectly suited for plinths, facade claddings, rubble work, copings, outdoor paving and flagging, curbs, thresholds, window and door frames, windowsills, stairs, indoor flooring, interior wall claddings, skirting boards, worktops, bridge coverings, rockeries, street furniture, as well as all applications in marble work, stone cutting, and sculpture.
Depending on the request, SprimontBlue® can be cleaved, bush-hammered, chiselled, sawn, flamed, ground, polished, or honed.
Light honed
Fine bush-hammered
Sawn
Flamed
Flamed and brushed
Tumbled
15-stroke chiselled
Fine bush-hammered
Dark honed
Maximum Block Dimensions
Length: 4 meters
Width: 2 meters
Thickness: 1.5 meters
400 x 200 x 150
Minimum application thickness: 1 cm
Guarantees
“Petit granit – Belgian blue stone, grey-blue crinoidal limestone, of Upper Tournaisian stratigraphic age (Lower Carboniferous, Primary), belonging to category [to be specified] in accordance with the classification taking into account the structural and aesthetic particularities as established in technical information note no. 220 of the C.S.T.C. (2002).”
The material shall originate from quarries holding technical approval with certification issued by U.B.A.tc for the entire deposit. The finish and appearance shall conform to the samples submitted to the project author; these three contractual samples shall represent the average appearance and the two extremes of variations permitted within the scope of the contract.
Technical Approvals – ATG 00/H782 – Anthisnes
Equivalence
Any proposal for a product or finish different from the description above must be submitted to the equivalence procedure described in guide 100.2 published by the construction quality department of the Ministry of Communications and Infrastructure, now the Federal Public Service Economy.”
