Road-building materials

Verify the material.Protect the layer.

Aggregate testing provides the grading, strength, shape, density and durability evidence needed for specification control and materials selection.

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Grading and shapeStrength and durabilityDensity and relative density

Compliance testing

A complete view of aggregate performance.

Testing is selected to match the material, intended application and project specification. Results support source approval, process control and acceptance decisions.

Aggregate grading
Crushing value and 10% fines
Flakiness and average least dimension

Detailed capability

What this service covers.

Strength and shape

Aggregate Crushing Value
10% Fines Aggregate Crushing Test
Flakiness
Average Least Dimension

Density

Bulk density
Dry bulk relative density
Apparent relative density
Fine-aggregate water demand

Durability and quality

Soundness
Organic impurities
Concrete-aggregate shrinkage
Soluble deleterious material
Bulking of fine aggregate

Public test guide

Choose a test to understand what it does.

Each test opens a plain-language page explaining what is used, what is measured and how the result supports a project decision.

10% Fines Aggregate Crushing Test

Finds the load required to produce a controlled amount of crushed fine material from aggregate.

Aggregate bulk density

Measures the mass of aggregate that fills a known container volume, including the spaces between particles.

Aggregate Crushing Value

Measures how much an aggregate breaks down under a standard compressive load.

Aggregate grading

Shows the proportion of aggregate particles falling within each standard size range.

Aggregate soundness

Accelerates repeated weathering action to assess whether aggregate is likely to break down under environmental exposure.

Apparent relative density

Measures relative density using only the solid particle volume and excluding permeable pores.

Average Least Dimension

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

Bulking of fine aggregate

Measures the temporary increase in sand volume caused by moisture films around the particles.

Dry bulk relative density

Compares the dry aggregate mass with the mass of an equal volume of water, including permeable particle pores.

Flakiness index

Measures the proportion of aggregate particles that are unusually thin compared with their size.

Organic impurities in fine aggregate

Screens sand for organic matter that may interfere with cement hydration or concrete performance.

Shrinkage properties of concrete aggregate

Assesses the contribution an aggregate may make to drying shrinkage in a controlled concrete or mortar specimen.

Soluble deleterious material

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

Water demand of fine aggregate

Assesses how much water a fine aggregate requires to reach a specified consistency condition.

Make informed project decisions

Connect with Bakgoni.

Discuss the testing or investigation your project needs.

(+27) 11 477 1045

Request a quotation Pieter@Bakgoni.com