Structural concrete FLOWING (40N)

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Overview
Flowing 40N Concrete is a preblended, one-component flowing C40 concrete designed for general concreting and high-traffic applications. The formulation of cements, additives and graded aggregates requires only the addition of water on site. Flowable and self-compacting, it provides consistent quality and reduces waste compared with site-batched concrete.

Applications / Where can Flowing (40N) Concrete be used?

• Steps — suitable for constructing steps where consistent strength and finish are required.
• Ramps — appropriate for ramp construction with good workability and final strength.
• Drives — usable for driveways and vehicle access areas.
• Signage and bollards — suitable for anchoring signage and bollards.
• Structural concrete — appropriate for structural elements in high-traffic zones.
• Paths — recommended for pedestrian and other path constructions.

Benefits

• Easy to place — flowable and self-compacting for rapid placement and ability to reach confined areas.
• Suitable for limited access sites — ideal where bulk concrete delivery is impractical.
• Versatile use — applicable to both surface and sub-surface installations in high-traffic conditions.
• Simple mixing — one-component product; only water required on site.
• High traffic performance — formulated for areas subject to heavy use.
• Waste reduction — supplied in 25 kg bags allowing smaller, accurate batches and reduced waste versus site batching.
• Consistent quality — factory preblended to ensure repeatable results.
• Yield and packaging — supplied in 25 kg waterproof bags; yield per 25 kg ≈ 12.5 litres.

Additional information
Laboratory-derived data (at 20°C and WSR of 0.13):
Compressive strength
After 1 day: 20.0 N/mm2
After 7 days: 40.0 N/mm2
After 28 days: 52.0 N/mm2

Flexural strength
After 1 day: 3.5 N/mm2
After 7 days: 5.0 N/mm2
After 28 days: 7.0 N/mm2

Performance data
Water addition (per 25kg): 3.0 to 3.5 litres
Workability: 60 minutes
Set time: 8 hours
Density: 2200-2300 kg/m3
Yield (per 25kg): 12.5 litres

Product nature and handling
Flowing 40N Concrete is preblended to ensure consistency, flowable and self-compacting, and requires only the addition of water on site. It is supplied in waterproof 25 kg bags to facilitate on-site mixing and reduce waste. Suitable for surface and sub-surface applications where a final strength equivalent to C40 is required.

Technical specifications

• Product type: Preblended flowing C40 concrete (flowable, self-compacting)
• Final compressive strength: C40 (laboratory: 52.0 N/mm2 at 28 days)
• Compressive strength (laboratory, 20°C, WSR 0.13): 1 day = 20.0 N/mm2; 7 days = 40.0 N/mm2; 28 days = 52.0 N/mm2
• Flexural strength (laboratory, 20°C, WSR 0.13): 1 day = 3.5 N/mm2; 7 days = 5.0 N/mm2; 28 days = 7.0 N/mm2
• Water addition (per 25 kg bag): 3.0–3.5 litres
• Workability: ~60 minutes
• Set time: ~8 hours
• Density: 2200–2300 kg/m3
• Yield per 25 kg bag: ~12.5 litres
• Packaging: 25 kg waterproof bags
• Typical uses: steps, ramps, drives, signage and bollards, structural concrete, paths