LimsPulse
Construction materials testing

Aggregate Impact Value Tester

A drop-hammer machine that strikes a cup of coarse aggregate 15 times and measures how much it breaks into fines. The result, the aggregate impact value (AIV), shows the aggregate's toughness.

  • Construction materials testing
  • Road and highway construction
  • Quarries and crushers
  • Ready-mix concrete
  • Academic labs
Illustration of Aggregate Impact Value Tester
CALIBRATION

AIV tester calibration procedures

Hammer mass and drop height check

Weighs the hammer, measures its free-fall height above the sample and checks the cup and measure dimensions, so each blow delivers the standard energy.

Open procedure
QUALIFICATION

Instrument qualification (DQ · IQ · OQ · PQ)

  1. 01

    DQ — Design qualification

    Specifies a machine conforming to IS 2386 Part 4 (hammer mass, drop height, cup, measure, base mass) with a blow counter.

  2. 02

    IQ — Installation qualification

    Checks the machine is bedded level on a solid floor and records dimension certificates.

  3. 03

    OQ — Operational qualification

    Verifies hammer mass, drop height, free fall and cup dimensions.

  4. 04

    PQ — Performance qualification

    Tests a reference aggregate periodically and trends the AIV.

In LimsPulse · Calibration Management

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

See how