Fibres

Concrete fibres are small reinforcing fibres added to concrete or mortar to improve durability and toughness. In fibre reinforced concrete, they can help reduce shrinkage cracking, increase strength and energy absorption, and reduce dangerous spalling when concrete is exposed to high temperatures.

The type and performance of concrete fibre reinforcement depend on the fibre selected and the intended application. Sika Australia supplies a range of fibre solutions, including polyolefin macro-synthetic, blended synthetic, polypropylene and steel fibres for reinforced concrete and shotcrete. The appropriate fibre should be selected according to the project requirements and concrete application. 

Steel fiber reinforcement and synthetic fibres provide different reinforcement options for concrete. Sika Australia offers collated hooked-end steel fibres as well as polyolefin macro-synthetic and polypropylene fiber products. These are designed for different concrete and shotcrete applications, so selection should be based on the required reinforcement performance and project conditions.

Sika Australia supplies SikaFiber® Novocon® CHE-8060 HT as a steel fibre option. Synthetic options include macro, micro and blended fibres. Performance depends on dosage, fibre geometry and application requirements, so a direct comparison should be based on the specific products being considered. Sika Australia provides technical support to help select the appropriate fibre for each application. 

Yes, steel fibers for concrete are suitable for concrete floors and pavements, providing uniform multi-directional reinforcement that improves crack resistance, ductility and load-carrying capacity. Sika Australia supplies steel fibre reinforced concrete solutions for ground-supported slabs, external roads and pavements, with products designed for industrial and heavy-duty applications.

Steel fibre reinforced concrete is typically dosed according to the application and required performance. The fibres bridge cracks and improve impact resistance, making them suitable for industrial floors and heavy-duty pavements where conventional mesh reinforcement may be impractical. The appropriate fibre type and dosage should be confirmed against the specific product documentation. 

Fibres are added directly to the concrete mix during batching or mixing, with the specific addition method depending on the fibre product and concrete application. The selected fibre for concrete mix should be incorporated according to the manufacturer’s technical instructions to achieve the intended distribution throughout the concrete.
Sika Australia offers a range of fibre reinforcement solutions, including macro-synthetic, micro-synthetic, blended and steel fibres for concrete and shotcrete. These fibres can help improve durability and toughness, reduce shrinkage cracking and increase energy absorption. Product selection should be based on the project requirements and the type of concrete application.

Concrete fibres can be used in some screed concrete applications. Sika Australia states that fibres in concrete and mortar help improve durability and toughness, reduce shrinkage cracking, increase strength and energy absorption, and reduce spalling at high temperatures.

For a screed application, the appropriate fibre should be selected according to the screed formulation and project requirements. Sika Australia provides several synthetic and steel fibre options. Product-specific documentation should be checked before use to confirm compatibility with the specific screed mix and application. The correct fibre type and dosage will depend on the performance requirements of the screed. 

Yes, concrete fibres are used in precast concrete elements. Sika Australia supplies both synthetic and steel fibre options for precast applications. Synthetic fibres such as Sika® Fibre help reduce plastic shrinkage cracking, while macro-synthetic and steel fibres can enhance toughness and load-carrying capacity.

The appropriate concrete fibre reinforcement depends on the element's structural requirements, manufacturing process and exposure conditions. Dosage and selection should follow the relevant product data sheet. Sika Australia provides technical support to help select suitable fibre reinforcement solutions for precast concrete projects, ensuring the correct fibre is used for each specific application. 

Macro synthetic fibres are used in concrete to improve its durability and toughness performance. They can help reduce shrinkage cracking, increase strength and energy absorption, and reduce dangerous spalling when concrete is exposed to high temperatures.

Macro synthetic fibre reinforced concrete can incorporate products such as SikaFiber® Force PP-48/RAD-48s and SikaFiber® Force PP-65/RAD65s, which are polyolefin macro-synthetic fibres designed for shotcrete and concrete. The appropriate fibre type depends on the concrete application and required performance. Sika Australia also provides technical support to help select suitable fibre reinforcement solutions for projects.

Yes. Polypropylene fibres for concrete can help reduce shrinkage cracking. Sika Australia states that fibres in concrete help reduce shrinkage cracks while also improving durability and toughness performance. Its fibre range includes Sika® Confibre® 19F and Sika® Confibre® 51F, which are fibrillated polypropylene fibres, as well as Sika® Fibermesh®-150, a micro-synthetic monofilament fibre.

The suitable fibre type depends on the concrete application and required performance. Sika Australia also offers technical support to help select an appropriate fibre solution for specific concrete projects. 

A cement fibre additive is a fibre reinforcement added to concrete or mortar to improve properties such as toughness and durability. Sika Australia’s fibre solutions include synthetic, polyolefin, polypropylene and steel fibres, with applications depending on the product and concrete requirements.

The dosage is not a single standard amount and should be determined according to the selected fibre, concrete mix, application and required performance. Sika Australia provides a fibre selection chart and technical support to help identify an appropriate solution. Product-specific documentation should be followed when determining the required dosage rather than applying a generic fibre rate.