Product Overview
100mm Solid Dense 7.3N Concrete Blocks are high-strength, load-bearing masonry units essential for robust construction in both domestic and commercial projects. Engineered for durability, these blocks offer a compressive strength of 7.3N/mm², making them an ideal choice for structural walling, foundations, and heavy-duty load-bearing applications. Their solid, dense construction ensures excellent fire resistance and sound insulation properties.
Purchasing these blocks individually provides maximum flexibility for small-scale projects, site repairs, or finishing tasks where full packs are not required. This per-block approach allows for precise ordering to minimise excess material on site, ensuring cost-effectiveness for smaller masonry works.
Features & Benefits
- 7.3N compressive strength: High-load capacity suitable for structural piers, load-bearing walls, and reinforced openings.
- Solid dense construction: Provides superior acoustic insulation and non-combustible fire resistance for safety and comfort.
- Versatile masonry unit: Compatible with standard mortar types for efficient laying and bonding in various structural configurations.
- Flexible ordering: Purchasing by the block allows for precise project quantities, reducing site waste and storage requirements.
- Structural durability: Designed for longevity in both below-DPC and above-ground applications.
- Standard dimensions: 100mm thickness ensures compatibility with common wall construction systems and framing depths.
Applications
- Foundation walling: Standard choice for below-DPC applications such as foundations and sleeper walls.
- Internal load-bearing walls: Suitable for supporting upper floors, ceilings, and roof structures.
- Separating walls: Provides essential acoustic insulation and fire resistance between dwellings.
- External walls: Forms the structural inner leaf of a cavity wall or a solid wall when finished with render, cladding, or other protective systems.
- Piers and columns: Used to build structural piers to support heavy beams, lintels, or rolled steel joists (RSJs), and to reinforce door and window openings.
- Retaining walls (non-structural): Commonly used for small-scale garden landscaping, such as creating raised flower beds or low garden terraces.
- Infill panels: Frequently used as fire-resistant, secure infill between steel or timber frame members in industrial or commercial builds.
- Firewalls: Utilised to create compartment walls in garages or workshops to effectively slow the spread of fire.
- Garden and boundary walls: High compressive strength provides the necessary structural mass for freestanding walls and external boundaries up to 1.2m in height.
- Fireplace and chimney construction: Non-combustible A1 rated material ensures suitability for chimney breast rebuilding and fireplace surrounds in compliance with Building Regulations Part J.
- Acoustic separating walls: High density material weighing approximately 2000kg/m³ provides the required sound attenuation for internal partitions in multi-occupancy dwellings to meet Part E requirements.
Installation Guidance
- Lay with appropriate mortar: Apply a consistent bed and perpend of mortar to ensure structural integrity and load distribution.
- Ensure level bedding: Use a spirit level regularly to maintain plumb and level courses throughout the wall height.
- Apply correct ties: When constructing cavity walls, use appropriate wall ties at specified centres to secure the inner and outer leaves.
- Handle with care: Although robust, use mechanical handling where possible to maintain the integrity of the blocks and prevent site-based damage.
Compliance & Performance
- Compressive strength: 7.3N/mm² structural rating.
- Fire resistance: Non-combustible material; provides reliable compartmentation.
- Acoustic performance: High-density mass assists in noise reduction between rooms and dwellings.
- Important note: Always consult local building regulations and structural engineering specifications regarding the design of retaining walls or load-bearing piers, as reinforcement may be required based on specific site loads. Orders requiring a pallet will incur a refundable pallet charge. Our customer service team will confirm if this applies to your order.