When reinforcing concrete, selecting the right Reo Mesh is critical for the strength and durability of any construction project. Understanding the available options can make a significant difference in the performance and longevity of the structure.
At Danterr, we offer a wide range of high-quality reinforcing mesh solutions tailored to your project’s specific needs. From traditional steel mesh to advanced fibreglass alternatives, our focus on innovation, sustainability, and safety ensures you receive the best materials for your project.
What is Reo Mesh?
Reo Mesh (short for reinforcing mesh) is a welded grid made from steel wires or other materials, designed to strengthen and support concrete structures. By distributing the load evenly, Reo Mesh prevents cracking, increases structural integrity, and ensures durability in slabs, walls, tunnels, and roads.
Commonly used in both residential and commercial construction, Reo Mesh reinforces concrete where additional strength is required. Several types of concrete reinforcing mesh are available, each tailored to specific project needs based on load-bearing requirements, environmental conditions, and sustainability goals.
Danterr’s Reo Mesh
At Danterr, we offer a diverse selection of Reo Mesh products, each designed to meet the demands of modern construction. Here are the key types of Reinforcing Mesh we provide:
Trench Mesh: Specialised Reinforcement for Footings and Beams
Trench Mesh is designed for reinforcing narrow, linear concrete structures like footings, beams, and foundation trenches. It provides the tensile strength needed to support load-bearing walls and structural foundations, ensuring stability and crack resistance.
Benefits:
- Targeted Strength: Reinforces concrete in narrow trenches and beams under heavy load.
- Space Efficiency: Fits easily into narrow spaces that standard mesh sheets can’t accommodate.
- Crack Prevention: Prevents cracking and settlement in structural foundations, increasing durability.
Technical Specifications:
- Material: High-tensile steel for durability in foundational applications.
- Available Sizes: Available in widths of 200mm, 300mm, and 400mm, each with various bar configurations including 3, 4, or 5 bars in diameters of 8mm, 11mm, 12mm, and 16mm to suit different trench reinforcement needs.
- Compliance: Manufactured to Australian Standard AS/NZS 4671 for steel reinforcing.
Rectangle Mesh: The Industry Standard for Concrete Reinforcement
Rectangle mesh is one of the most commonly used types of concrete mesh, particularly for large-scale flat surfaces like concrete slabs and walls. Its high-tensile steel construction provides excellent support for horizontal structures, ensuring long-term strength and stability.
Benefits:
- Strength: Provides superior tensile strength, making it ideal for large-scale concrete slabs and footings.
- Efficiency: Easy to install and reduces labour costs due to its pre-formed nature.
- Versatility: Suitable for various applications, including pavements, driveways, and large concrete surfaces.
Technical Specifications:
- Material: High-tensile steel ensuring optimal durability and performance.
- Available Sizes: 2400mm x 6000mm sheets in RL718, RL818, RL918, RL1118, and RL1218 .
- Compliance: Manufactured to Australian Standard AS/NZS 4671 for steel reinforcing.
Square Mesh: Perfect for Multi-Directional Reinforcement
Square mesh provides equal strength in all directions, making it a perfect choice for reinforcing concrete slabs, footpaths, and retaining walls. This mesh is especially useful where stresses may come from multiple angles, ensuring consistent reinforcement across the structure.
Benefits:
- Uniform Strength: Provides equal strength in both directions, making it suitable for structural integrity across multiple axes.
- Crack Control: Helps to minimise cracking and shrinkage, enhancing concrete durability.
- Wide Application: Ideal for reinforcing slabs, footpaths, and retaining walls.
Technical Specifications:
- Material: High-tensile steel, suitable for commercial projects.
- Available Sizes: 2400mm x 6000mm sheets in SL62, SL72, SL81, SL82, SL92, SL102.
- Compliance: Manufactured to Australian Standard AS/NZS 4671 for steel reinforcing.
Galvanised Reinforcing Mesh: Superior Corrosion Resistance
Galvanised reinforcing mesh is ideal for corrosive environments such as coastal regions or areas with high humidity. The zinc coating prevents rust and extends the life of concrete structures.
Benefits:
- Corrosion Resistance: Zinc coating offers superior resistance to rust and corrosion, extending the life of your concrete structure.
- Long-Lasting Durability: Ideal for projects in coastal or high-humidity environments where corrosion is a concern.
- Low Maintenance: Reduces the need for costly maintenance and repairs over time.
Technical Specifications:
- Material: Galvanised steel for enhanced protection in corrosive environments.
- Available Sizes: 2400mm x 6000mm sheets in SL62, SL72, SL81, SL82, SL92, SL102.
- Compliance: Manufactured to Australian Standard AS/NZS 4671 for steel reinforcing.
Stainless Steel Reinforcing Mesh: The Ultimate in Durability
Stainless steel reinforcing mesh is the top choice for extreme environments, offering unmatched corrosion resistance and durability. It is especially useful in marine, chemical, and high-traffic areas where long-term structural integrity is essential.
Benefits:
- Exceptional Durability: Highly resistant to corrosion, even in the harshest environments, such as marine settings.
- Low Maintenance: Requires minimal upkeep, ensuring long-term cost savings.
- High Strength: Ideal for projects requiring superior load-bearing capacity and reinforcement.
Technical Specifications:
- Material: Premium stainless steel designed for extreme durability and corrosion resistance.
- Available Sizes: 2400mm x 6000mm sheets in SL62, SL72, SL81, SL82, SL92, SL102.
- Compliance: Manufactured to Australian Standard AS/NZS 4671 for steel reinforcing.
Starbars™ GFRP Mesh : A Lightweight, Sustainable Alternative
Starbars™ GFRP Mesh is a glass fibre reinforced polymer reinforcement solution designed for concrete slabs and foundations in demanding environments. It supports consistent load distribution and long term durability in applications where moisture, chemicals, or corrosive conditions are present.
Benefits:
- Corrosion Resistant: Non corrosive reinforcement suitable for high exposure environments where steel deterioration is a concern.
- Lightweight: Easier to transport and handle on site, supporting improved safety and installation efficiency.
- Long Term Performance: Designed to support durable concrete structures with 100 years of service life, reducing maintenance requirements over time.
Technical Specifications:
- Material: Glass Fibre Reinforced Polymer (GFRP)
- Available Sizes:
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- SL72, SL82, SL92, and SL81
- Sheet size 2400mm x 5800mm
- Compliance: ASTM D7957, ACI 440.11, and ACI 440.5
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Applications of Reo Mesh
Reo Mesh reinforces concrete structures in various construction projects. Depending on the project requirements, certain types of Reinforcing Mesh are better suited for specific applications. Here’s a breakdown of where each type excels:
- Roadways and Bridges:
For high-traffic areas exposed to constant load and environmental stress, Galvanised Reinforcing Mesh and Stainless Steel Reinforcing Mesh are ideal. Their resistance to corrosion and strength ensure long-term durability in tough conditions like coastal or urban environments. - Commercial and Industrial Floors:
In commercial settings with heavy foot traffic or machinery, Rectangle Mesh and Square Mesh provide uniform support for large, flat concrete surfaces. These mesh types offer excellent tensile strength and are easy to install, reducing project time while ensuring structural stability. - Public Infrastructure Projects:
Large scale infrastructure such as railways, tunnels, and transport projects may utilise Stainless Steel Reinforcing Mesh or Starbars™ GFRP Mesh where corrosion resistance, durability, and reduced maintenance are important considerations. - Foundations and Footings:
Trench Mesh is designed for reinforcing narrow, linear structures such as footings, beams, and foundation trenches. It provides tensile strength in confined spaces, ensuring stability for load-bearing walls and foundational elements in buildings. - Marine and Coastal Construction:
For projects in marine or coastal environments, Galvanised Reinforcing Mesh, Stainless Steel Reinforcing Mesh, and Starbars™ GFRP Mesh may be specified to manage corrosion exposure and support long term structural performance. - Light Rail and Slabs:
Starbars™ GFRP Mesh is commonly used in light rail projects and slabs where a non corrosive and non conductive reinforcement solution is required. Its properties make it suitable for applications involving electrical systems or environments where metallic reinforcement may cause interference.
Danterr Project That Utilised Reo Mesh
The Prospect Highway Upgrade, NSW is a major infrastructure project aimed at improving traffic flow and safety along one of New South Wales’ busiest corridors. Danterr supplied Reo Mesh to reinforce the concrete pavements used throughout the highway.
Galvanised Reinforcing Mesh was used for its high corrosion resistance, making it ideal for outdoor applications. The Reo Mesh strengthened the concrete, ensuring the long-term durability of the highway under heavy traffic conditions.
Tips for Effective Installation of Reo Mesh
Proper installation of Reo Mesh is key to ensuring the strength and durability of reinforced concrete structures. Follow these tips for effective installation and long-lasting results:
- Ensure Proper Spacing: Maintaining consistent spacing between the mesh bars is crucial for even load distribution. Choose the appropriate mesh size, such as Rectangle Mesh or Square Mesh, and ensure the bars are spaced according to Australian Standards (AS/NZS 4671).
- Secure Mesh Overlaps: When laying mesh, ensure that overlapping sections are properly secured to maintain the structural integrity of the concrete. Overlaps should be around 300mm to avoid weak spots, especially in high-stress applications like roadways or large slabs.
- Use Appropriate Bar Chairs: Always use high-quality bar chairs to maintain the correct height and position of the mesh within the concrete. This ensures that the mesh stays suspended in the middle of the slab, providing optimal reinforcement.
- Account for Environmental Conditions: For projects in corrosive environments, such as coastal or marine settings, select corrosion-resistant options like Galvanised Reinforcing Mesh or Stainless Steel Reinforcing Mesh. These materials are designed to withstand harsh conditions and extend the life of your structure.
- Ensure Adequate Concrete Cover: Make sure that the concrete completely covers the mesh to prevent exposure to air and moisture, which could lead to corrosion. Adequate concrete cover also enhances the overall strength and fire resistance of the structure.
- Handle With Care: During transportation and installation, avoid damaging the mesh. Any bending or warping can affect the mesh’s structural performance, particularly for materials like Starbars™ GFRP Mesh, which need careful handling to maintain their integrity.
By following these installation tips, you can ensure that your Reo Mesh performs effectively, providing long-lasting reinforcement to your concrete structures.
Conclusion
Selecting the right Reo Mesh for your project is critical to ensuring the structural integrity and durability of any concrete application. Whether you’re reinforcing roadways, industrial floors, or public infrastructure, Danterr provides high-quality products to meet your project’s unique demands. With options ranging from Galvanised and Stainless Steel to Fibreglass, Danterr’s Reo Mesh solutions are built to last.
Contact Danterr today to learn more about our Reo Mesh offerings and how we can help you strengthen your next project.
📞: 1800 262 383
📧: [email protected]
Frequently Asked Questions:
Reo Mesh is critical in reinforcing concrete because concrete, while strong in compression, is weak in tension. By embedding Reo Mesh within the concrete, you provide tensile strength, allowing the structure to handle bending, stretching, and external loads. Without Reo Mesh, concrete can crack and fail under stress, reducing its durability. The mesh ensures even stress distribution, prevents cracks, and helps the concrete maintain its structural integrity for decades, even under heavy loads or environmental pressures.
Reo Mesh is commonly used in a variety of construction projects where reinforced concrete is essential. These include large flat slabs like those found in foundations, driveways, and industrial floors, which help distribute loads evenly. In addition, Reo Mesh is crucial in roadways, bridges, tunnels, and other infrastructure projects, providing strength and crack resistance. It’s also used in high-traffic areas and retaining walls, offering support where constant or heavy loads are expected. Marine and coastal projects, where resistance to corrosion is essential, also make extensive use of Galvanised Reinforcing Mesh or Stainless Steel Reinforcing Mesh.
Reo Mesh significantly enhances concrete’s durability by adding tensile strength, which concrete lacks on its own. It helps the concrete withstand tensile forces, reducing the likelihood of cracks caused by shrinkage, temperature changes, or external stresses. The mesh evenly distributes weight and load across the structure, preventing localized weak spots. In environments where moisture or chemicals can cause corrosion, materials like Galvanised or Stainless Steel Reo Mesh ensure that the reinforcement remains effective, further extending the lifespan of the structure.
The main difference between Galvanised Reinforcing Mesh and Stainless Steel Reinforcing Mesh is their corrosion resistance and ideal applications. Galvanised Mesh is coated with a layer of zinc, which protects the steel from rust, making it suitable for outdoor environments where moisture is a concern, such as coastal areas or exposed infrastructure. Stainless Steel Mesh, on the other hand, is made from a chromium-rich alloy that provides even greater resistance to corrosion and rust. It is ideal for extreme environments, such as marine structures, chemical plants, or areas exposed to saltwater, where long-term durability is essential.
Fibreglass Reinforcing Mesh (GFRP) is an increasingly popular alternative to steel for several reasons. It is lightweight, making it easier and less expensive to transport and install, especially on large-scale projects. GFRP is also non-corrosive, which means it won’t rust or degrade over time, even in highly corrosive environments like coastal regions, wastewater plants, or chemical facilities. Additionally, GFRP is non-conductive, making it ideal for projects where electrical insulation is necessary. From an environmental perspective, it’s a sustainable option that aligns with modern green building initiatives.
Choosing the right Reo Mesh depends on several factors. First, assess the environmental conditions: Galvanised Mesh is best for areas exposed to moisture, while Stainless Steel Mesh is ideal for extremely corrosive environments, like coastal or chemical-heavy regions. Second, consider load-bearing requirements: larger structures may need thicker or stronger mesh, such as Stainless Steel Mesh for bridges or heavy industrial floors. Lastly, sustainability goals can drive the decision toward eco-friendly options like Fibreglass Reinforcing Mesh (GFRP), which is corrosion-resistant and lightweight. Always match the mesh type with the project’s durability, strength, and environmental needs.
The standard size for Reo Mesh is typically 2400mm x 6000mm. These dimensions are designed to cover large surface areas, such as slabs, efficiently. Mesh sheets come in various wire diameters and spacing configurations, depending on the load-bearing needs of the project. For example, common configurations include SL62, SL72, SL81, and others, which refer to different wire sizes and mesh spacing. Custom sizes are also available depending on the project’s specific structural requirements.
Bar chairs play a crucial role in Reo Mesh installation by supporting the mesh and ensuring it stays at the correct height within the concrete slab. Without bar chairs, the mesh might sink to the bottom, leaving it unable to provide adequate reinforcement where needed most. By keeping the mesh suspended in the centre of the slab, bar chairs ensure that the concrete is reinforced throughout, improving the slab’s overall strength and durability. Bar chairs come in various heights to match the thickness of the concrete being poured.
Reo Mesh prevents cracks in concrete by providing tensile strength, which allows the concrete to resist external pressures such as temperature changes, drying shrinkage, and structural loads. As concrete hardens, it naturally shrinks and develops internal stresses. Without reinforcement, these stresses can result in cracks. By embedding Reo Mesh within the concrete, the mesh holds the structure together and redistributes the forces, effectively preventing the formation of cracks. The mesh ensures that any minor cracks that form remain controlled and do not compromise the overall structural integrity.
Some common mistakes during Reo Mesh installation include improper mesh spacing, failing to secure the mesh overlaps properly, and neglecting to use bar chairs to keep the mesh at the correct height within the slab. Incorrect spacing can weaken the reinforcement, leading to uneven load distribution. Overlaps should be secured with a minimum of 300mm to avoid weak spots in the structure. Additionally, placing the mesh directly on the ground or too close to the surface, without bar chairs, exposes the mesh to air and moisture, leading to premature corrosion, which compromises the durability of the concrete.
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