General
Characteristics
Dolomized limestone, dark grey bronce colour, fine grain and compact,
with irregular streaked.
Extracted from municipality of Albolote (Granada), it could be extracted
big blocks from dimension working fronts.
About its use, itself keeps joined to international rules references to
the use of marbles and grains what take shine from the polish, taking
any kind of superficial ending anticipated for this class of stones.
Representative works made in this material:
Pabellón de la Naturaleza Expo'92 (Sevilla)
Sede de la Cruz Roja en Pamplona (Navarra)
Sede del Diario 'El Mundo' (Madrid)
Escuela Superior de Arquitectura (Granada)
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CHARACTERIZATION TESTS
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RESULTS
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| Apparent density (UNE-EN 1936) | 2,69 g/cm3 |
| Water absorption at atmospheric pressure (Pr EN 13755) | 0,19 % |
| Open porosity(UNE-EN 1936) | 0,50 % |
| Total porosity (UNE-EN 1936) | 7,63% |
| Strength at crystallization of salts (UNE-EN 12370) | Lost in weight: 0,09% |
| Strength at press-up (UNE-EN 12372) | 15,80+-1,43 N/mm2 |
| Test of frost (Pr EN 12371) (despues de 60 ciclos) |
Alterations: No Lost of strength at press-up :21,6% |
| Strength at anchors (Pr EN 133644) | 2010 N |
| Strength at burned (Pr EN WI 246014) | 21,5 mm |
| Strength at skid (Pr EN 13552) | Sawed : USRV=65 Grain 60: USRV=42 Shine: USRV=14 |
| Energy of fracture by impact (Pr EN WI 24619)J | 4,06 J |
| Test of termic beat (Pr EN WI 246016) | Alterations: Lose mass |