Glued steel fibres are individual steel fibres assembled into small bundles with a temporary adhesive, usually to support more consistent handling and feeding during concrete mixing. Once introduced to the mix, the adhesive is intended to disperse so the fibres can separate and distribute through the concrete. Buyers should select them according to the concrete application, required performance, mixing process, and project specification—not by fibre type alone. This guide explains where glued fibres may be suitable, what to compare, and what to confirm with a supplier before ordering.
This guide is for concrete contractors, precast producers, ready-mix buyers, distributors, and project teams evaluating glued steel fibres. It is especially relevant when fibres need to be added through a mechanical feeding system or when buyers want to compare collated and loose fibre formats. The right choice still depends on the concrete mix, production process, and specified performance criteria. Final design and acceptance requirements should be confirmed by the project’s responsible technical professionals.
Steel fibres are short steel elements added to concrete to modify its behaviour after cracking and, depending on the design, contribute to post-crack performance. Glued steel fibres—also called collated fibres—are connected in bundles using an adhesive that is designed to break down or disperse during mixing. This format can make fibres easier to feed as a controlled addition than handling each loose fibre individually. It does not mean the fibres remain bonded together in the hardened concrete.
Fibre reinforcement is not automatically a substitute for conventional reinforcing bars or mesh. Whether fibres can replace, reduce, or supplement other reinforcement must be established by the design requirements and applicable project approvals. Buyers should distinguish between a product’s physical description and verified performance in the intended concrete. Request the relevant technical information and test documentation for the exact fibre being considered.
Steel fibres may differ in length, diameter, aspect ratio, cross-section, and end shape. These characteristics influence how a fibre interacts with the surrounding concrete, while also affecting mixing, workability, and feeding. A hooked or otherwise shaped end may be specified for a particular performance objective, but the geometry alone does not prove that a mix will meet a project requirement. Compare products using a complete technical specification rather than a single headline feature.
For an initial supplier enquiry, a buyer might provide illustrative values such as a fibre length of 50 mm and a diameter of 1.0 mm. These are example inputs only, not universal recommendations or a BEKA product specification. The supplier should confirm whether the requested geometry is available and provide the associated product data. Ask how dimensions are measured and how tolerances are reported.
The bond between fibres should be considered in relation to the intended feeding and mixing process. Buyers should ask how the bundles are expected to disperse, whether the adhesive is suitable for the planned addition method, and what handling or storage conditions apply. Packaging can also affect unloading, storage, and automated dosing. Confirm the net fibre quantity per package and whether packaging is compatible with site or plant procedures.
Fibre dosage is normally stated as mass per volume of concrete, such as kilograms per cubic metre. A figure such as 25 kg/m³ may be used as a sample value in a quotation request, but it is not a general design dosage. The appropriate quantity depends on the required performance, concrete mixture, fibre characteristics, placement conditions, and the governing design or project specification. Request guidance from the project’s qualified concrete professional and verify any proposed dosage through the required design and testing process.
Glued steel fibres may be considered for industrial floors, precast concrete, shotcrete, tunnels, and other fibre-reinforced concrete applications where the project design permits their use. Collated fibres can be useful where the production setup benefits from controlled feeding, though suitability depends on the equipment and mix. In precast production, buyers should consider the consistency of batching and the product’s compatibility with cycle times. For floors or other large pours, discuss placement, finishing, joint design, and performance criteria with the design team.
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Do not select a fibre solely because it has been used in a broadly similar application. Concrete strength, aggregate grading, admixtures, mixing sequence, delivery method, and placement conditions can all affect the outcome. Ask for application-specific advice and, where appropriate, plan a trial mix or production trial. Confirm in advance how the trial will be evaluated and which acceptance criteria apply.
Start with the project specification and identify the required function, such as post-crack performance, crack control, or a specified structural contribution. Record the applicable test method, acceptance criteria, and any restrictions on reinforcement type. If the specification is unclear, resolve that uncertainty before comparing quotations. A supplier can help clarify product details, but should not replace the project engineer’s design decision.
Provide the supplier with the planned mixer type, batch size, feeding method, and mixing sequence where known. Confirm that the collated format is appropriate for the equipment and that the supplier can explain the intended dispersion process. Discuss any concerns about workability, fibre balling, surface finish, or pumping before production. If the process is unfamiliar, consider a controlled trial rather than assuming the product will behave identically in every mix.
Compare fibre material, geometry, tolerances, collation, packaging, and documentation—not just price per tonne. Check whether the quotation covers the requested specification and whether any proposed alternative has been clearly identified as a substitute. Confirm the minimum order quantity, production or dispatch lead time, shipping terms, and delivery location. Lead times and minimum quantities vary by order, configuration, and availability, so obtain written confirmation for the specific enquiry.
Request a technical data sheet and relevant quality or batch documents for the product under consideration. Confirm the batch identification method and what information will appear on packing documents. Agree on sample or trial requirements, if applicable, and establish who is responsible for mix approval and performance verification. Keep the approved specification linked to the purchase order to reduce the risk of a mismatch between quotation and delivery.
When evaluating a supplier, check whether it can clearly explain the fibre specification, collation method, packaging, and documents available for the proposed product. Ask how it handles product identification and whether the quotation states the requested dimensions and tolerances. Confirm its ability to respond to technical questions, coordinate samples or trials where available, and provide a realistic delivery schedule for your order. If any answer is uncertain, request written clarification before placing the purchase order.
At BEKA, we work with B2B buyers to review their requested steel fibre specification and discuss the information needed for a quotation. Share the application, target geometry, estimated quantity, destination, and any project or testing requirements so our team can assess the enquiry. Availability, minimum order quantity, documentation, and lead time should be confirmed for the specific product and order. This keeps the selection discussion connected to your actual project rather than a generic product assumption.
Glued steel fibres are collated steel fibres intended to support handling and feeding, with the bundles expected to disperse during mixing. They may suit concrete applications such as floors, precast elements, or shotcrete when the project design and production process support their use. The next step is to define the required performance, confirm compatible fibre geometry and mixing arrangements, and obtain a quotation that matches the full specification. Contact BEKA with your application, required dimensions, estimated volume, and delivery destination to discuss product suitability and supply details.
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