This apparatus is used for measuring pore water pressure and pore
air pressure in soils. This is as per the principals outlined in the book "
measurement of soil properties in triaxial tests" by A.W. BISHOP and
D.J. HENKEL. This is used as an accessories for triaxial test apparatus.
SPECIFICATION :
The apparatus consists of a panel for wall mounting
on which are fitted 1.0 to 10kg/cm sq x 0.1kg cm. sq. a pressure
gauge, bourdon tube type 15 cm dia.
MANOMETER :
Glass u-tube manometer for measuring low positive
pore pressures negative pore measures and checking zero error of
pressure gauge. It is provided with a mercury trap (mercury supplied
at extra cost.) Null indicator made out of clear transparent Perspex
with mercury trap and cursor to indicate the mercury level.
BURETTE :
50ml burette for measuring the volume change in the soil
specimen. Pressure pump fitted with four sleeve packed valves,
operated by means of a hand wheel on the end of the piston rod
which is threaded through the pump cap and gives a smooth, fine
adjustment of pressure. Copper coil and water reservoir is fitted on
board with complete stand assembly. The unit is tested against leaks
up to 10kg/cm sq.