Timber & Structural BambooCwb (Subtropical Highland)Cfb (Temperate Oceanic Highland)Aw (Tropical Savanna Elevation)
African Alpine Bamboo (Yushania alpina / Oldeania alpina)
Bambou des Montagnes d'Afrique de l'Est / Karkaha
Primary Geographic Coverage: Ethiopia Kenya Uganda Rwanda DR Congo
Compressive Strength
68 MPa
Wet yield: 42 MPa (Ratio: 62%)Thermal Conductivity (λ)
0.15 W/m·K
Diffusivity: 0.142 mm²/sThermal Phase Lag (30cm)
15.6 hrs
U-Value: 0.48 W/m²·KCarbon vs. Concrete
-125%
Embodied: -0.58 kgCO2e/kgSoil Mechanics & Physics
| Soil Classification: | Volcanic and humic mountain andosols (2,200m - 3,500m altitude) |
| Liquid Limit (LL): | 0% |
| Plastic Limit (PL): | 0% |
| Plasticity Index (PI): | 0% |
| Optimum Moisture Content: | % |
| Proctor Dry Density: | 680 kg/m³ |
Thermal Thermodynamics
| Conductivity (λ): | 0.15 W/m·K |
| Specific Heat Capacity (c): | 1550 J/kg·K |
| Thermal Diffusivity (α): | 0.142 mm²/s |
| Volumetric Heat Capacity: | 1054 kJ/m³·K |
| 30cm Wall U-Value: | 0.48 W/m²·K |
| Phase Delay (30cm Wall): | 15.6 Hours |
Tectonic Specifications & Architectural Engineering
Bioclimatic Engineering Strategy
Surpasses structural steel in tensile strength-to-weight ratio. Porous cellular fibers provide exceptional thermal insulation and passive natural air movement.
Mortar Formulation & Stabilization Mix
Mortise-tenon, pin-bolted with mortar-injected node connections
Curing, Quality Control & Erosion Protection
Academic References & Lab Data Sources
- INBAR (International Bamboo and Rattan Organization): Technical Report on African Bamboo Resources, 2021. Ethiopia accounts for ~31.6% of Africa's total bamboo reserves.
- FAO Open Foris & SEPAL Forest Inventory Datasets.