Civil Engineering Technician how-to

How to Run a Concrete Slump Test

Slump tests check workability.

Updated By the Career Education Institute Curriculum Team
Quick answer

Slump tests check workability. In short: dampen; fill; rod, then complete the remaining steps below.

Step by step

  1. Dampen the cone and base.

  2. Fill the cone in three layers.

  3. Rod each layer 25 times.

  4. Strike off the top.

  5. Lift the cone straight up.

  6. Measure the slump.

Safety reminders for civil engineering technicians

  • Wear PPE on sites
  • Follow nuclear gauge safety
  • Watch for traffic and equipment
  • Stay out of unprotected trenches

Slump test · Compaction · Proctor test · Compressive strength · Aggregate · Asphalt: see the full civil engineering technician glossary.

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