LimsPulse
Construction materials testing

Slump Cone (Abrams Cone)

A hollow metal frustum used on site and in the lab to measure the workability of fresh concrete by how much it slumps when the cone is lifted.

  • Construction sites
  • Ready-mix concrete plants
  • Precast concrete
  • Construction materials testing
  • Academic labs
Photo of a Slump Cone (Abrams Cone)
Photo: Habib M’henni, CC BY 4.0 (cropped), via Wikimedia Commons
CALIBRATION

Slump cone calibration procedures

Dimension check

Measures the top and base internal diameters, height and wall thickness of the slump cone and checks the tamping rod, against the standard dimensions of 100 mm, 200 mm and 300 mm.

Open procedure
QUALIFICATION

Instrument qualification (DQ · IQ · OQ · PQ)

  1. 01

    DQ — Design qualification

    Specifies a cone and rod conforming to IS 7320 / ASTM C143 dimensions, made of non-absorbent metal of suitable thickness.

  2. 02

    IQ — Installation qualification

    Records the cone ID and checks it on receipt against the dimension certificate.

  3. 03

    OQ — Operational qualification

    Measures top and base diameters, height and wall thickness, and checks the rod.

  4. 04

    PQ — Performance qualification

    Compares slumps by different operators on the same batch to confirm consistent technique.

In LimsPulse · Calibration Management

Keep every Slump cone in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how