Ensuring the quality of aggregate for roadworks and concrete.
Our accredited facilities perform all manner of chemical testing for aggregates.
Our tests always adhere to standards set by SANS, ASTM and British Standards.
This test is done to determine the short-term retardation and long-term deleterious effects of organic impurities.
Specifies the determination of the chloride content in aggregates which can have a negative binding effect in some construction applications.
This standard specifies a method for determining the total water-soluble salt content of fine aggregates and of fines in aggregates for base courses. Water-soluble salts can be detrimental to roads, concrete and stabilized foundations for paved areas.
This method determines whether the clay content of the fines of an aggregate contains deleterious swelling or active clay minerals which are usually resultant from weathering of rock.
Determines the percentage of stabilizer that will first be absorbed by the material to neutralize acidity levels before stabilizing will take effect.
Used to determine the percentage moisture in a freshly mixed hot mix asphalt (HMA) mix.
To determine the particle size distribution of materials to detail the silt and clay percentages, especially of material smaller than 2mm.
Used to determine the strength of the aggregate sample after it has been exposed to ethylene glycol that acts like a weathering agent.
To determine the percentage of stabilizer added during the construction phase to see if the design was adhered to and if proper mixing was achieved on site.
To define the weight or density of a material.
Determines whether the clay content of the fines of an aggregate contains deleterious swelling clay minerals which could adversely affect the quality of the asphalt mix.