Public test guide

Soluble deleterious material

Checks aggregate for soluble substances that could negatively affect concrete, asphalt or long-term durability.

Plain-language explanation

What the test tells you.

The project specification controls the exact method and acceptance requirement.

A prepared sample is extracted or washed under controlled conditions and the relevant soluble fraction is measured.

Representative aggregate, specified extraction liquid, filtration/drying apparatus and balance or analytical equipment.

The amount of targeted soluble material present under the method conditions.

Supports source approval and identifies contamination or salts that may make the aggregate unsuitable.

Typical test sequence

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Send the project, sample quantity, location and required completion date.