PERMEABILITY(CONSTANT HEAD METHOD)

DATA SHEET

Project: ___________________________ Date: _____________________ Tested by: ______________

Location of sample: ___________________________

Description of soil: ____________________________

Weight of Cylinder Mould /gWeight of Top Porous Stone

Weight of Bottom porous stoneWeight of Base

Weight of reservoir chamber/g

Length of Soil Specimen, L /cmDiameter of the Soil Specimen D /cm

Weight of Cylinder Mould + Top Porous Stone + Bottom porous stone+ Weight of Base+ Weight of reservoir chamber+ soil

(DRY)/gWeight of Cylinder Mould + Top Porous Stone + Bottom porous

stone+ Weight of Base+ Weight of reservoir chamber+ soil (WET)/g

Weight of bowl/gWeight of bowl + soil before drying/gWeight of bowl + soil after drying/g

Trial Number

Constant Head, h

(cm)

Elapsed Time, t

(seconds)

Outflow Volume,

Q(out)/ cm3

Water Temp., T

(oC)

KT K20

123456

Average K20= ______________________ cm/sec

Soils Laboratory D.A. 2014