STANDARD: ITALIAN HIGHWAY SYSTEM,
COMPARABLE TO MPW OF BELGIUM
Mainly used in situ to perform and to check the permeability and
drainage on road carpets, concrete pavements, tamped earth
etc. The test consists in filling the
cylinder with water, after ermetically
positioning it on the carpet under
test and then in calculating the time
needed by a certain quantity of
water to be absorbed by the same.
The instrument is composed of a
bottomless plexiglass cylinder 140
mm inside diameter, fitted on a base.
The cylinder has two black calibration
lines: one at zero point and one at
Weight: 8 kg approx.
WEIGHT KG 5, anular shape, to apply on the base of the permemeter,
to improve its adherence to the material under test.