What it is
Binder is separated or determined using the approved extraction or ignition-based procedure, with aggregate corrections where required.
SANAS T1018
Public test guide
Measures how much bituminous binder is present in an asphalt mixture.
Plain-language explanation
The project specification controls the exact method and acceptance requirement.
Binder is separated or determined using the approved extraction or ignition-based procedure, with aggregate corrections where required.
Representative asphalt sample, balance and the specified extraction or ignition apparatus.
Binder content as a percentage of the asphalt mixture mass.
Controls asphalt production because incorrect binder content can affect durability, voids, strength and deformation.
Typical test sequence
Prepare and weigh the representative sample
Separate or remove binder by the specified method
Apply corrections and calculate binder percentage
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