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Pau-santo
COMMOM NAME |
| Zollernia paraensis |
| SCIENTIFIC NAME |
| Fabaceae |
| FAMILY |
| Buriticupu -MA |
| ORIGIN |
OTHERS COMMOM NAMES:
Angélica, Cabeça-de-negro, Casca-dura, Coração-de-negro, Ingá-de-suia, Jacarandatã, Mocitaíba, Mocitarba, Muirapenima-preta, Muirapinima, Muirapinima-preta, Pau-de-são-josé, Pau-santo,
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RETENTION AND PENETRATION OF PRESERVATIVES IN WOOD
| Preservative |
Retention (kg/m3) |
Penetration |
| Sapwood |
Heartwood |
Indistinct |
Sapwood |
Heartwood |
Indistinct |
| CCA-A |
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| Creosote |
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Obs.: the retention of the creosote is expressed in kilogram of preservative by cubic meter of treated wood and the one of the CCA-A in kilogram of active ingredients for cubic meter of wood
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PHYSICAL PROPERTIES
| Density(g/cm3) |
Shrinkage (%) |
Shrinkage Tangential/ Shrinkage Radial |
| Dry |
Green |
Basic |
12% |
Tangential |
Radial |
Volumetric |
| 1.17 |
1.32 |
0.97 |
1.26 |
9.60 |
5.00 |
16.80 |
1.92 |
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MECHANICAL PROPERTIES
| State |
Static Bending |
Compression |
Janka Hardness |
| Modulus of rupture (kgf/cm2) |
Modulus of elasticity (1.000kgf/cm2) |
Parallel to the grain |
Perpendicular to the grain |
Parallel to the grain (kgf) |
End to the grain (kgf) |
| Maximum compression (kgf/cm2) |
Stress at proportional limit (kgf/cm2) |
| Green |
1487 |
163 |
688 |
142 |
1193 |
1336 |
| Dry |
1915 |
182 |
974 |
275 |
1490 |
1479 |
| State |
Tension |
Cleavage strenght |
Shear |
Nail extration |
| Perpendicular to the grain |
Maximum compression (kgf/cm) |
Maximum compression (kgf/cm) |
Parallel to the grain (kgf) |
End to the grain (kgf) |
| Maximum compression (kgf/cm2) |
| Green |
47 |
67 |
146 |
217 |
195 |
| Dry |
47 |
51 |
188 |
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Heartwood Color Classification: Black
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