Falling Head Permeability Test
Soils Lab
CEG3011L
Purpose
The falling head permeability test is a common laboratory testing method used to determine the
permeability of fine grained soils with intermediate and low permeability such as silts and clays.
In
Results
Units
Calibration of unit Weight Of
Ottawa Sand
Weight of Proctor Mold W1
Weight Of Proctor Mold+Sand (W2)
Volume Of mold (V1)
Dry Unit Weight
Calibration Cone
Weigth of bottle+cone+sand (w3)
Weight of bottle+cone+sand(after)
(W4)
Weight of Sand t
Lab # 2
Sieve Analysis
09-16-12
Purpose
In this lab Students will demonstrate how different sieves can be used to divide up different
aggregates. The sieves are different sized filters that are stacked on top of each other and when
they are shaken over a
Results
Test
Mass of can (W2)
Mass of can + wet soil (W2)
Mass of can + dry soil (W3)
Mass of moisture (W2 - W3)
Mass of dry soil (W3 - W1)
Moisture content = (W2 - W3)/(W3 - W1) X 100
Average Moisture Content
1(70)
39.20
147.20
136.60
10.60
97.40
11%
2(8
Steps you need to take for the assessment of borrowing
soil to a project to fill onsite.
1. The first step that a Geo Engineer will need to do to is calculating the
volume of soil needed for filling your site.
2. Next they will need to determine the type
Results
Weight
empty
4.91 pan (g)
1.24
Area of Specimen (in^2)
Length of Specimen (in)
Volume of
specimen
(in^3)
361
6.09
Mass of pan +
dry sand
before (W1, g)
1499.1
Mass of pan +
dry sand after
(W2,g )
Dry Unit
Weight of
Specimen
(lb/ft^3)
1315.5
114.80
Results
Liquid Limit Determination
Sample(
1)
Lid
Number
Mass of
empty
can
(grams)
Mass of
can +
Moist
soil
(grams)
Mass of
can + Dry
soil
(grams)
Mass of
soil
(grams)
Mass of
pore
water
(grams)
Water
Content
(%)
Number
of drops
(N)
Sample(
2)
Sample
(3)