Concrete Testing & Mix Designs
SANAS-accredited fresh and hardened concrete testing — from slump and cube compressive strength to coring and structural investigations — with the rapid turnaround your pour schedule depends on.
What's included
- Slump & workability testing
- Cube casting, curing & compressive strength
- Core drilling & testing
- Ferro scanning (cover & reinforcement)
- Certified concrete mix designs
- On-site sampling & testing
Concrete Testing & Mix Designs
Concrete testing verifies that the concrete going into your structure meets its specified strength and durability — protecting the structure, the programme and everyone who signs off on it. As a SANAS ISO/IEC 17025 accredited laboratory, Letaba Lab delivers results that stand up to scrutiny from engineers, auditors and clients.
We test fresh concrete for consistence (slump) and cast, cure and crush cubes for compressive strength at 7 and 28 days. For existing structures we core, test and investigate hardened concrete, and carry out Ferro scanning to establish cover and reinforcement position.
Our technicians can sample and test on-site at the point of placement, and our mix-design service helps you achieve the strength and workability you need, economically.
Industries served
Trusted by the sectors that depend on defensible materials data.
Why clients choose Letaba Lab for this
Defensible, accredited results
SANAS ISO/IEC 17025 methods and traceable measurement mean your certificates hold up under review.
Rapid reporting
Fast, reliable turnaround on cube results keeps your pour schedule and programme moving.
On-site testing available
We sample and test at the point of placement, so results reflect what actually went into the works.
From sample to signed-off results
A clear, accredited workflow that keeps your programme moving.
Sampling
Trained staff sample fresh concrete on-site to national standards, or receive your cores.
Preparation & curing
Cubes are cast and cured under controlled temperature; cores are prepared for testing.
Accredited testing
Compressive strength and related tests are run under ISO/IEC 17025 methods on calibrated equipment.
Reporting
You receive clear, certified results you can hand straight to the engineer or client.
Equipment & applicable standards
Equipment we use
- Compression testing machines
- Temperature-controlled curing tanks
- Slump cones & consistence apparatus
- Core drilling rigs
- Ferro scan / cover meters
- Calibrated moulds, scales & ovens
Applicable standards
Testing is carried out to recognised South African and international standards. Confirm the exact accredited scope for your branch.
Frequently asked questions
How many cubes should I cast per sample?
When will I get my results?
Can you test existing / hardened concrete?
Do you provide concrete mix designs?
Is your concrete testing SANAS accredited?
Complete your testing scope
Ready to discuss your project?
Submit your details and receive a formal quotation within 24 hours — from a SANAS accredited laboratory trusted since 1986.