# Project No

Document Sample

```					CA-EW-4                                                           Moisture Density Curve Calculation
Project No.                                                                                   Co-Rt-Sec                                                                             Date

Ref. No.                                                                            Item No. and Description

Wt. of 1/30 ft³ container

Wet density of sample

Dry density of sample
Moisture Content Determination
sample and 1/30 ft³
Wt. of compacted

Moisture content
Wet wt. & dish
Wt. of sample

Dry wt. & dish

Wt. of water

Wt. of dish

Wt. of dry
container

Dish No.

sample
[1]                            [2]                       [3]                [4]                      [5]        [6]                  [7]                  [8]               [9]            [10]        [11]                 [12]
lb                             lb                        lb               lb/ft³                                  g                    g                   g                 g              g         %                   lb/ft³

Remarks:                                                                                                                                                           Maximum dry density, lb/ft³
Optimum moisture content, %
Curve
Equations                                                                                                                                                                           Units
[3]                        Weight of sample                                                            [1] − [2] = [3]                                                      lb — pound
[4]                        Wet density of sample                                                       [3] × 30 = [4]                                                       lb/ft³ — pounds per cubic foot
[8]                        Weight of water                                                             [6] − [7] = [8]                                                      g — grams
[10]                        Weight of dry sample                                                        [7] − [9] = [10]
[11]                        Moisture content                                                            [8] ÷ [10] × 100 = [11]
[12]                        Dry density of sample                                                       [4] ÷ (1 + [11] ÷ 100) = [12]

Inspector                                                Date

ODOT Form date: 3/17/2009
CA-EW-4                                                               Moisture Density Curve Calculation (back)
155

All points for dry density should plot
150                                                    below the zero air voids curve.
The equation for the zero air voids
Zero Air Voids                  curve is below.
Curve
 62.4   1 
145                                                          %M max               100
 DD Gs 

140

Points on graph                      Zero Air Voids Curve
135
Moisture Dry Density                 Wmax       Dry Density
#N/A    #N/A                   31.88015          90
Dry Density of sample, pounds per cubic foot

130       #N/A    #N/A                   28.23103          95
#N/A    #N/A                   24.94682        100
125       #N/A    #N/A                   21.97539        105
#N/A    #N/A                   19.27409        110

120       #N/A    #N/A                   16.80769        115
#N/A    #N/A                   14.54682        120
#N/A    #N/A                   12.46682        125
115
#N/A    #N/A                   10.54682        130
#N/A    #N/A                   8.769039        135
110
#N/A    #N/A                   7.118245        140
#N/A    #N/A                   5.581299        145
105
#N/A    #N/A                   4.146816        150

100

95

90

85
0            5            10          15           20            25               30      35
Moisture Content, percent of dry weight

For Zero Air Voids Curve, Specific Gravity, Gs =    2.67

ODOT Form date: 3/17/2009

```
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
 views: 8 posted: 10/14/2012 language: Latin pages: 2
How are you planning on using Docstoc?