lava stone
Natural Aesthetic and Texture
The unique rough texture and earthy tones of Puka Lava add a rustic, natural charm, making it a popular choice for decorative elements like paving, cladding, walls, and garden features.
Eco-Friendly and Sustainable
Sourced from natural volcanic formations, Puka Lava is an environmentally friendly material. Its production typically involves minimal processing, reducing its carbon footprint compared to other construction materials.
Excellent Drainage and Permeability
Its porous nature facilitates water drainage, making it ideal for outdoor applications such as landscaping, swimming pool area, retaining walls, and pathways where moisture control is crucial.
Description
Lava stone, also known as puka lava, which is a type of basalt and volcanic rock formed from the rapid cooling of lava at the Earth’s surface. It is highly valued in construction and design for its durability, natural aesthetics, and unique porous texture. Lava stone’s deep earthy tones and versatile properties make it a favorite choice for both building and landscaping applications.
Finishing Options
Lava Stone Technical Specifications
| Property | ASTM Standard | Metric Units | Imperial Units |
|---|---|---|---|
| Compressive Strength | ASTM C39 | 50 - 70 MPa | 7,250 - 10,150 psi |
| Density | ASTM C238 | 2,300 - 2,500 kg/m³ | 143 - 156 lb/ft³ |
| Moisture Absorption | ASTM C642 | 1 - 5% | 1 - 5% |
| Flexural Strength | ASTM C78 | 5 - 10 MPa | 725 - 1,450 psi |
| Water Absorption | ASTM C97 | < 3% | < 3% |
| Thermal Conductivity | ASTM C177 | 1.5 - 3.0 W/(m·K) | 1.0 - 2.1 BTU/(hr·ft²·°F) |
| Permeability | ASTM D5084 | 10^-7 to 10^-9 cm/s | 10^-7 to 10^-9 cm/s |
| Freeze-Thaw Durability | ASTM C666 | Passes 30 cycles | Passes 30 cycles |
| Coefficient of Thermal Expansion | ASTM E831 | 5 - 9 x 10^-6/°C | 2.8 - 5.0 x 10^-6/°F |
