Constant head apparatus

This test method are used for estimating the bearing capacity of a soil under field loading conditions on flexible pavement components.

The relatively low weight and small dimensions of this apparatus make it very easy to use and to move from one place to another.

The measuring bridge, made from aluminium alloy, is very light and has telescopic extensions so it can be positioned in a few minutes with minimum effort.

The equipment consists of:

-Extendable tripod and 250 and 500 mm extensions
-Load plate Ø300 mm
-Intermediate plate Ø160 mm
-Lower seat
-Attachements and extensions 250 and 500 mm
-Loading piston
-Upper spherical seat
-Hydraulic jack with hand pump
-Pressure transducers 700 bar
-3 displacement transducers de 25×0,01 mm
-3 Magnetic transducers holder
-Rubber pipe 3 m
-Digital unit for data acquisition
-Software for test data processing
-Wooden carrying case