Square Bar Fiber Concrete Spacer
Standard
TCXDVN 356:2005: “Concrete and Reinforced Concrete Structures – Design Standard”
TCVN 5574:2018: “Design of Concrete and Reinforced Concrete Structures”
BS 7973-1:2001: “Spacers and Chairs for Steel Reinforcement and Their Specification – Part 1: Product Performance Requirements”
DIN 1045: German Standard for concrete and reinforced concrete structures.
AS/NZS 2425:2015: “Bar Chairs in Reinforced Concrete – Product Requirements and Test Methods” (Australian/New Zealand Standard)
Specifications
Function: Positions and secures reinforcing steel, preventing displacement during concrete pouring.
Applications: Walls, beams, girders, columns, precast concrete components, and other reinforced concrete structures.
Material: High-strength, fiber-reinforced concrete with embedded steel reinforcement.
Dimensions: 100–400 mm.
Quality: Concrete grade ≥ M600.
Nominal Load-Bearing Capacity: 5–20 kN.
Packaging: 10–100 pieces per bag or 5–50 pieces per box.
General Introduction to Concrete Bar Spacers
Concrete Bar Spacers are one of HAN's concrete spacer product lines. Their long cylindrical design supports reinforcing steel or can be securely tied to it, keeping the reinforcement in position during concrete pouring and forming the required concrete cover to protect the internal reinforced concrete structure from environmental exposure, such as oxidation and reinforcement corrosion, which can damage the concrete element and compromise structural safety.
Concrete Bar Spacers are highly suitable for beams, girders, walls, and slabs.
Key Features of HAN Concrete Bar Spacers
| No. | Feature | Concrete Spacer with Tie Wire |
| 1 | Design | Typically available in one size per product |
| 2 | Shape | Long cylindrical shape with a flat base |
| 3 | Dimensions | 100 - 400 mm |
| 4 | Applications | Tunnels, beams, girders, slabs, walls, roofs, and concrete elements |
| 5 | Color | Natural concrete gray |
| 6 | Manufacturing Technology | Machine-assisted concrete casting |
| 7 | Material | Standard-compliant concrete |
| 8 | Load-Bearing Capacity | High |
| 9 | Stability Against Tipping | Good |
| 10 | Packaging | Plastic bags/cartons |
Classification of HAN Concrete Bar Spacers
| No. | Classification Criteria | Types of Concrete Bar Spacers |
| 1 | Intended Application |
- Concrete bar spacers for foundations - Concrete bar spacers for walls - Concrete bar spacers for beams - Concrete bar spacers for slabs - Concrete bar spacers for precast concrete elements |
| 2 | Design |
- Concrete bar spacers with a flat base - Curved concrete bar spacers |
| 3 | Material Composition |
- Fiber-reinforced concrete bar spacers |
| 4 | Concrete Grade |
- Concrete bar spacers - Custom high-strength concrete bar spacers |
| 5 | Load-Bearing Capacity |
- Load-bearing concrete bar spacers - Heavy-duty concrete bar spacers |
| 6 | Technical Standards |
- Concrete bar spacers for residential and commercial construction - Concrete bar spacers for industrial construction |
Materials Used to Manufacture HAN Concrete Bar Spacers:
HAN Concrete Bar Spacers are manufactured from the same materials used for HAN concrete spacers, including sand, cement, aggregate, water, admixtures, reinforcing fibers, and tie wire, in compliance with current construction standards.
Manufacturing Technology for HAN Concrete Bar Spacers:
Concrete bar spacers from HAN are manufactured using concrete casting technology. The products are cast in precision molds to ensure accurate dimensions and low tolerances.
How to Select and Use HAN Concrete Bar Spacers for Optimal Technical and Economic Efficiency
| No. | Category | Recommended | Not Recommended |
| 1 | Design | Select the appropriate concrete spacer design with tie wire according to the specific application. For example, use flat-base spacers for beams and walls, and curved spacers for slabs. | Do not use a single spacer design for every application. |
| 2 | Dimensions | Use Concrete Bar Spacers with dimensions ranging from 100 to 400 mm. |
Avoid selecting Concrete Bar Spacers larger than 400 mm unless specifically required. |
| 3 | Load-Bearing Capacity |
Determine the required design load and select Concrete Bar Spacers with a suitable load-bearing capacity. |
Do not select Concrete Bar Spacers with a load-bearing capacity below the project requirements. |
| 4 | Recommended Usage Rate |
Use at least the standard quantity recommended by HAN. |
Do not reduce the recommended quantity, even when the Concrete Bar Spacers have a high load-bearing capacity. |
| 5 | Technical and Economic Efficiency |
Use overall technical and economic efficiency as the key criterion when selecting Concrete Bar Spacers. |
Do not base the purchasing decision solely on whether the unit price of Concrete Bar Spacers is lower or higher than that of other types. |
| 6 | Packaging and Storage |
For high-volume use, choose products packed in large bags for convenient storage. |
Consider the available storage conditions when choosing Concrete Bar Spacers packed in cartons. |
| 7 | HAN Brand Identification | Contact an authorized dealer or purchase directly from HAN. The packaging should clearly display HAN's information, including the product code, address, and phone number. |
Do not purchase products without the HAN brand clearly printed on the packaging. |
| 8 | Personnel |
Assign knowledgeable and experienced personnel to work directly with HAN's technical advisory team when making purchasing decisions. |
Accounting or purchasing staff should not make the final purchasing decision unless they fully understand the technical requirements. |
Transportation and Storage of HAN Concrete Bar Spacers:
Transportation Guidelines for HAN Concrete Bar Spacers:
- Never throw or drop Concrete Bar Spacers. Do not drag the packaging along the ground.
- Use a flatbed truck when transporting bags or cartons of concrete spacers.
- Place heavy bags and suitable products at the bottom. Slab reinforcement spacers (note: CSS050U, CSS070U, CSS090U, CSS110U, etc.) should be placed on top, and the stack should not be too high.
Storage Guidelines for HAN Concrete Bar Spacers:
- Store on a flat surface and do not stack too high.
- Store in a raised, dry, and well-ventilated area, avoiding direct contact with soil, mud, moisture, or mold.
- Bagged products may be stored outdoors for 1–3 months.
- Carton-packed products must be stored on pallets and protected from water and high humidity.
Quality Standards for HAN Concrete Bar Spacers:
HAN Concrete Bar Spacers comply with the same standards as HAN concrete spacers, including:
- TCXDVN 356:2005 – "Concrete and Reinforced Concrete Structures – Design Standard"
- TCVN 4116:1985 – "Hydraulic Concrete and Reinforced Concrete Structures – Design Standard"
- TCVN 9139:2012 – "Hydraulic Structures – Concrete and Reinforced Concrete Structures in Coastal Areas – Technical Requirements"
- TCVN 9346:2012 – "Concrete and Reinforced Concrete Structures – Requirements for Corrosion Protection in Marine Environments"
- TCVN 5574:2018 – "Design of Concrete and Reinforced Concrete Structures"
- BS 7973-1:2001 (British Standard) – "Spacers and Chairs for Steel Reinforcement and Their Specification – Product Performance Requirements"
- BS 8110:1997 (British Standard) – "Structural Use of Concrete"
Customers should consider using HAN concrete bar spacers for the following advantages:
- HAN concrete bar spacers are manufactured from high-strength concrete with a grade of ≥ M600.
- HAN concrete bar spacers feature precise dimensions and very tight dimensional tolerances.
- They offer excellent flexural strength thanks to their fiber-reinforced concrete composition and embedded steel reinforcement.
- Scientifically engineered design with a high ultimate load-bearing capacity of ≥ 5–30 kN.
- Pre-attached tie wires can be provided to securely position the concrete spacers within the reinforcement system in both horizontal and vertical applications, ensuring convenient and easy installation.
- Available in a wide range of sizes from 100–400 mm.
- Suitable for various construction applications, including piles, foundations, beams, basements, girders, slabs, walls, roof slabs, and other reinforced concrete structures.
Important Considerations When Using Concrete Bar Spacers
- Clearly determine the required concrete cover standards applicable to the structure and project.
- Select concrete bar spacers with suitable designs, features, dimensions, and load-bearing capacities.
- Conduct a trial installation to evaluate actual performance before full-scale construction.
- Choose spacers with a concrete strength grade that complies with applicable standards for the structural component and project.
- Prepare an accurate quantity estimate based on the material takeoff, usage rate, and contingency allowance.
Please contact HAN’s authorized distributor network or the factory sales department to purchase genuine HAN concrete bar spacers.
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