Test Method Statements
Concrete Slump Test
Quick workability check of fresh concrete at site before placing.
Reference standards: ASTM C143
Equipment
- Slump cone 300 mm high
- Tamping rod 16 mm
- Base plate
- Measuring tape
Procedure
- Place the damp cone on a level, non-absorbent base and hold it down.
- Fill in 3 equal layers, rodding each 25 times.
- Strike off the top and clean around the base.
- Lift the cone vertically in 5 ± 2 seconds.
- Measure the drop from the cone top to the displaced centre of the concrete.
Acceptance criteria
- Within the specified slump ± 25 mm (≤ 100 mm) or ± 40 mm (> 100 mm).
- Reject shear or collapsed slumps that are out of spec.
Health & safety
- Wear PPE: helmet, safety shoes, gloves and eye protection.
FAQs
What is the Concrete Slump Test used for?
Quick workability check of fresh concrete at site before placing.
Which standard does it follow?
It is based on ASTM C143. Always follow your project specification where it differs.
Can I print or submit this?
Yes. Use Print / PDF, add your project details and submit it through your normal approval process. Get it reviewed by your engineer or consultant first.
Is it free?
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General guidance only, not engineering advice. Project specifications, approved drawings, manufacturer data sheets and your consultant's instructions take priority. See our Policy. This document was generated using CM PRO. Powered by CM PRO.