Civil Engineering Testing Laboratory ¡¤ SANAS T1018
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Public test guide

Average Least Dimension

Estimates the average smallest thickness of aggregate particles, especially road-stone or seal aggregate.

Plain-language explanation

What the test tells you.

The project specification controls the exact method and acceptance requirement.

01

What it is

A graded aggregate sample is assessed using particle-shape measurements and the required calculation.

02

What is used

Representative graded aggregate, sizing/gauging equipment and balance.

03

What it determines

The average least particle dimension for the tested aggregate.

04

Why it matters

Supports selection and application rates for surfacing aggregate and helps control particle shape.

Typical test sequence

From sample
to result.

  1. 01

    Prepare and grade the representative sample

  2. 02

    Measure or gauge particles by the specified procedure

  3. 03

    Calculate the weighted average least dimension

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