Cellular Concrete

Cellular concrete is an innovative construction material that has become a benchmark in modern and sustainable architecture. At SOLDOMO, we use it as the primary material for building monolithic dome homes, thanks to its light weight, outstanding thermal performance, durability, and safety.

This construction system meets today’s requirements for energy efficiency, indoor comfort, and environmental responsibility, both for single-family homes and high-end architectural projects.

Cellular concrete is a material composed of cement, lime, sand, water, and air. Its internal structure consists of millions of evenly distributed microscopic air bubbles.

This porous structure gives it unique technical properties:

• Low density and exceptional lightness
• Excellent thermal and acoustic insulation
• High mechanical strength
• Non-combustible behavior and fire resistance

For these reasons, cellular concrete is widely used in sustainable construction, bioclimatic architecture, and innovative building systems such as monolithic domes.

Cellular concrete is manufactured using:

• Cement
• Lime
• Sand
• Water
• Foaming agent

The foaming agent is essential, as it creates the air bubbles responsible for the material’s lightness and high thermal and acoustic insulation performance.

After molding, the material undergoes an autoclave curing process, using high-pressure steam at elevated temperatures for approximately 10 to 11 hours.

This process:

• Increases structural strength
• Ensures dimensional stability
• Enhances long-term durability

The result is high-performance cellular concrete blocks, suitable for residential buildings, commercial structures, and specialized constructions such as domes.

The cellular concrete blocks used by SOLDOMO strictly comply with European regulations, particularly UNE-EN 771-4, as referenced in the Spanish Building Technical Code (CTE – DB SE-F).

These controls guarantee:

• Minimum compressive strength of 1.5 MPa
• Consistent material quality
• Certified structural safety

Cellular concrete is therefore a reliable material for architects, engineers, and self-builders alike.

Cellular concrete is extremely lightweight, allowing:

• Reduced structural loads
• Optimized foundations
• Easier transportation and on-site installation

Thanks to its porous structure, cellular concrete provides integrated thermal insulation, reducing:

• Energy consumption
• Heating and cooling costs
• Thermal bridges

This results in energy-efficient, comfortable homes all year round.

The material effectively absorbs sound, making it ideal for:

• Exterior walls
• Interior partitions
• Enclosure of noisy installations

It significantly improves indoor acoustic comfort.

Cellular concrete is non-combustible:

• Does not spread fire
• Does not emit toxic gases
• Enhances occupant safety

Cellular concrete is asbestos-free, even in trace amounts, and does not emit volatile organic compounds (VOCs).

Certified tests show that cellular concrete has extremely low levels of natural radioactivity—lower than those of:

• Traditional brick
• Conventional concrete
• Plaster

The values of Radium-226 (²²⁶Ra) and Thorium-232 (²³²Th) are well below European limits, ensuring a healthy and safe indoor environment.

No cellulose content → does not attract termites
Subterranean termites feed on materials containing cellulose, such as wood, paper, or cardboard. Cellular concrete contains none of these components.

Prevents condensation → avoids mold and unpleasant odors

Cellular concrete stands out for its:

• High durability
• Chemical resistance
• Long service life

In addition, its manufacturing process and excellent thermal insulation help to:

• Reduce the building’s carbon footprint
• Lower overall energy consumption
• Promote more sustainable construction practices

Its ease of cutting and handling also shortens construction times and reduces waste.

Cellular concrete is ideal for:

• Load-bearing walls
• Exterior enclosures
• Integrated thermal insulation
• Prefabricated elements
• Monolithic dome construction

It is a versatile and efficient solution for contemporary architecture, including our monolithic dome homes.

Choosing cellular concrete means investing in:

• Thermal and acoustic comfort
• Safety and health
• Energy efficiency
• Sustainable construction
• Architectural innovation

At SOLDOMO, we use cellular concrete to create high-performance monolithic domes, designed to last, enhance well-being, and meet the most demanding standards in the construction industry.