24 
The Colorado Experiment Station 
TABLE NO. 3—Poured Posts. 
Size, 5x5 inches from base to ground line, tapering to 3x3 inches at 
top. Length 6 feet 6 inches. Cured weight, 110 to 115 pounds. Mixture, 
1 part cement and 4 parts sand, by measure. Cost for cement per post, 22 
pounds, 13.2 cents; sand, 1 cubic foot, 3.7 cents. For cost of reinforcement, 
see table below. 
REINFORCEMENT 
TEST 
COST 
REMARKS 
Kind of Wire 
Weight 
Per Post 
Kbs. 
Cost 
Per 
Post 
First 
('rack 
in Ebs. 
Final 
Break 
in Ebs. 
Eocation of 
Break Above 
or Below 
Ground Eine 
Cost of 
Material 
in Post 
New Wire is Fig¬ 
ured at 4c per 
Eb. and Old Wire 
at 2c per Eb. 
4 strands or 
2 wires twist¬ 
ed No. 10_ 
2*4 
10.0c 
147 
222 
28 in.above 
30 in. above 
42 in. above 
26.9c 
Mixture gave 
way, wires not 
well placed. 
4 long and 2 
short twisted 
strands No,10 
3 
12.0c 
237 
322 
8 in. below 
7 in. below 
11 in. below 
28.9c 
Mixture and 
wires about 
equal strength, 
4 long straight 
wires hooked 
at ends No. 6 
2% 
10.6c 
170 
222 
Ground Eine 
3 in. below 
27.5c 
Wires slipped 
4 long old 
barbed 
wires - -_ 
1% 
3.3c 
70 
95 
Ground Eine 
3 in. below 
5 in. below 
20.2c 
Wires broke, 
they were 
poorly placed. 
4 long and 2 
short old 
barbed wire. 
2 
4.0c 
98 
127 
18 in. above 
20 in. above 
13 in. above 
20.9c 
Wires broke. 
Poor wire. 
4 long and 2 
short new 
barbed wire. 
2 
8.0c 
138 
172 
20 in. above 
19 in. above 
12 in. above 
24.9c 
Wires well 
placed. 
Cement broke. 
4 long strands 
of 3 twisted 
wires No. 14. 
1% 
6.6c 
68 
. 105 
Ground Eine 
Ground Eine 
3 in. below 
23.5c 
Wires broke. 
Figure 7. 
Method Which Was Used in Testing All Line Posts.—The distance from 
the ground line to the point at which the hitch was made is four feet. The 
dynamometer records the exact number of pounds of pull required to break 
the post. 
