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MATERIALS TESTING

AGGREGATE

Ensuring the quality of aggregate for roadworks and concrete.

Our accredited facilities perform all manner of aggregate testing, including gradation, fines content and plasticity according to any standard you require.

We are ready to provide you with advice, insight or a quote.

Send us a message here or contact us at 066 299 1985.

AGGREGATE

AGGREGATE

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01


Particle Size Analysis

This test is primarily used in the classification of material against specified grading envelopes. Also known as sieve analysis, this test is done to determine if the aggregates are fit for purpose.

02


Average Least Dimension (ALD)

The ALD is the arithmetic mean of all the measured least dimensions of the aggregate particles measured. The least dimension is the smallest perpendicular distance between two parallel plates through which the particle will pass.

03


Flakiness Index

The flakiness index of coarse aggregate is a measurement of the flatness of an aggregate which affects, among other things, the performance of road surfacing aggregates and the workability of concrete.

04


Sand Equivalent

This test reveals the relative proportions of fine dust or clay-like materials in soils and fine aggregates. The test is used to assess the quality of fine aggregate used in concrete and asphalt.

05


ACV and 10% FACT

The Aggregate Crushing Value and 10% Fines Aggregate Crushing tests determine particle strength of aggregate for concrete, surfacing (chips) and asphalt, as well as crushed stone base.

06


Polished Stone Value (PSV)

PSV simulates the resistance of aggregate to the polishing action of vehicle tyres under conditions similar to those occurring on a road surface.

07


Bulk Density

This test is used to determine the relative compaction of a crushed stone base and mix design procedures of concrete and asphalt where the volumetric and water absorption properties of aggregates are required.

08


Apparent Density

This test is used to determine the apparent density of crushed stone base. The results are used to determine compliance of the density with applicable specifications.

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