Self-compacting concrete flows under its own weight, filling formwork without vibration. On restricted sites, complex geometry, or congested reinforcement, SCC turns difficult pours into routine ones.
What SCC is
A concrete mix designed to flow freely and self-compact. Achieved via specialist admixtures and carefully graded aggregates. Maintains aggregate suspension without segregating.
When SCC pays back
- Heavily reinforced sections (densely congested steel)
- Restricted-access pours (basements, retrofit, refurbishment)
- Complex formwork geometry
- Architectural concrete requiring smooth finishes
- Locations where vibration is restricted (heritage, occupied buildings)
Cost premium
Typically R160–R400 per m³ above standard concrete. Often offset by:
- Faster placement (less labour)
- No vibrator hire
- Better surface finish (less remedial work)
- Fewer pour-related defects
Specification considerations
- Slump flow test (not standard slump)
- V-funnel and L-box testing for flow characteristics
- Specialist supplier required — not all batching plants produce SCC
- Formwork must be more rigid (SCC exerts higher pressure)
Common applications
- Basement walls and underpinning
- Bored pile heads
- Heritage building repair
- Heavily reinforced columns and beams
- Architectural exposed concrete
MCFAR specifies SCC where its benefits justify the premium.
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MCFAR GROUP has been delivering structural engineering, building, and plumbing services since 1998. Talk to our team about your build, retrofit, or renovation.
Request a QuoteFrequently Asked Questions
Is SCC always better than standard concrete?
No. Standard concrete is cheaper and works fine in routine pours. SCC pays off in restricted or complex situations.
Can I order SCC for a domestic slab?
Yes — most batching plants supply on request, but cost may not justify benefit on simple pours.