Articles in Taxonomy

German dynamic plate – BRRC Information leaflet F70

This device was originally developed in Germany and is used to determine the dynamic deformation modulus of embankments and base layers in road construction.

Light percussion sounding apparatus – BRRC information leaflet A25

A significant correlation between test results from a percussion sounding apparatus and the California Bearing Ratio (CBR value) has been established for fine soils ranging from silt to fine sandy soils I (D < 0,2 mm).

In a standardized form this equipment and test method can render invaluable services:


Plate-bearing test for compaction control in road engineering – BRRC information leaflet A26

This operational precedure describes a plate-bearing test for checking the quality of road construction materials after laying (compaction control) or the residual quality of a fatigued road layer.


Cyclic load triaxial test – BRRC information leaflet A73

Cyclic load triaxial test

This test makes it possible to simulate in the laboratory the effect of road traffic on unbound granular materials used in base and subbase layers of roads, in order to allow:

Skid resistance measurements with the SRT – Information leaflet A57

BRRC has a static device for measuring skid resistance in places where conventional skid resistance measurements with measuring vehicles are impossible, such as footways, driveways, industrial floors, road markings, shopping streets, entrance halls, etc. It is the Skid Resistance Tester of the British Transport Research Laboratory (TRL), shortly referred to as SRT by professionals.
BRRC’s information leaflet A57 decribes the device and its applications.