Original Volcanic Hollow Block – Size 20 (Kasvol HollowBlock 6-20)

The Perfect Balance of Efficiency and Performance.

The Original Volcanic Hollow Block – Size 20 (Kasvol HollowBlock 6-20) represents the ideal middle ground in hollow block design – offering an optimal balance between material efficiency and structural performance. This premium 40×20×20 cm block features an advanced 6-core hollow configuration that delivers reliable compressive strength (6 MPa), superior acoustic insulation (54 dB), and exceptional lightweight handling (13 kg). With its precision-engineered multi-core geometry and durable volcanic composition, it offers builders, contractors, and developers the perfect solution for projects demanding both efficiency and robust performance across Saudi Arabia and the Gulf region.

• 6-Core Hollow Design Advanced multi-core configuration maximizes material efficiency while maintaining reliable structural integrity.
• Lightweight Construction At only 13 kg per block, installation is significantly faster, easier, and more cost-effective – reducing labor costs and construction timelines.
• Reliable Strength 6 MPa average compressive strength ensures dependable performance for a wide range of applications.
• Exceptional Sound Resistance 54 dB acoustic performance creates quieter, more peaceful indoor environments – ideal for homes, offices, and hotels.
• 6-Hour Fire Resistance Exceptional fire protection enhances building safety and provides critical evacuation time.
• Superior Material Efficiency 6-core design significantly reduces raw material consumption without compromising performance.
• Enhanced Utility Integration Multiple cores provide flexibility for electrical conduits and plumbing installations.
• Durable Volcanic Material Natural volcanic aggregates ensure long-lasting performance, resisting weather, moisture, and temperature extremes.
• Versatile Finishes Available in rough (for plastering) or smooth (for exposed walls) to suit project requirements.
• Maximum Cost-Effectiveness Reduced material usage and lightweight design deliver exceptional value.
• Eco-Friendly Made from sustainable, natural materials with highly efficient resource utilization.

• Exterior Walls Efficient building envelope with reliable thermal performance for residential and commercial projects.
• Interior Partition Walls Ultra-lightweight, acoustically superior (54 dB) division of interior spaces.
• Multi-Story Construction Maximum weight reduction (14 kg) significantly lessens structural load on frameworks.
• Residential Construction Ideal for villas, apartment complexes, and housing developments seeking efficiency.
• Commercial Buildings Perfect for offices, retail spaces, hotels, and institutional facilities.
• Utility-Rich Environments 6-core design provides exceptional flexibility for electrical and plumbing integration.
• Acoustically Sensitive Areas 54 dB sound resistance near highways, schools, and urban centers.
• Renovation Projects Ultra-lightweight design ideal for upgrading existing structures.
• Large-Scale Developments Material efficiency delivers significant cost savings for major projects.
• Climate-Sensitive Environments Effective for regions with moderate temperature variations.

1. Natural Strength
Volcanic aggregates are inherently durable, providing reliable compressive strength and long-term performance that synthetic materials cannot match.

2. Built-In Insulation
Unlike conventional concrete blocks, volcanic blocks offer natural thermal and acoustic insulation – reducing or eliminating the need for additional insulation layers.

3. Lightweight Advantage
With dry density as low as 500 kg/m³ and weight of just 13 kg per block, these are significantly lighter than traditional blocks, making them exceptionally easy to handle, transport, and install.

4. Fire Resistance
Volcanic materials are non-combustible, providing up to 6 hours of fire protection – a critical safety feature for any building.

5. Climate Suitability
Engineered specifically for the Gulf region, volcanic blocks perform exceptionally well in extreme heat, humidity, and harsh weather conditions.

6. Cost Efficiency
Faster installation, reduced labor, and lower material costs make volcanic blocks a smart economic choice for any project scale.

7. Acoustic Excellence
With 54 dB sound resistance, volcanic blocks create quieter, more comfortable indoor environments.

8. Maximum Efficiency
The 6-core design represents the ultimate in material optimization – less material, same performance.

Building Responsibly for a Better Future

At Kasvol, sustainability is at the heart of everything we do. The HollowBlock 6-20 Volcanic Block reflects our commitment to environmentally responsible construction through maximum material efficiency:

• Natural Materials Made from abundant, locally sourced volcanic aggregates.
• Maximum Material Efficiency 6-core design significantly reduces raw material consumption – less material, same performance.
• Lightweight Design At only 13 kg, lower transportation emissions due to reduced weight.
• Durability Long lifespan minimizes replacement cycles and construction waste.
• Non-Toxic Made from safe, natural materials with no harmful emissions.
• Local Manufacturing Proudly produced in Saudi Arabia, reducing import-related emissions.
• Recyclable Volcanic blocks can be crushed and reused as aggregate at end of life.

Green Building Compatibility:
The HollowBlock 6-20 contributes to green building certification points through:

• Material efficiency – optimized 6-core design
• Energy performance – improved thermal insulation
• Acoustic comfort – 54 dB sound resistance
• Recycled content – natural aggregates
• Regional materials – locally manufactured
• Low-emitting materials – non-toxic composition

• Premium volcanic aggregate selection
• Precision 6-core configuration
• 6 MPa compressive strength verification
• Tested for acoustic performance (54 dB)
• Rigorous quality control throughout production
• Tested for fire resistance (6 hours)
• Consistent finish quality
• 14+ years of refined production expertise