14 
The Colorado Experiment Station 
TABLE NO. 3.—Poured and Tamped Posts.* 
Size, 5x5 inches from base to ground line, tapering to 3x3 inches at 
top. Length, 6 feet 6 inches. Cured weight, 110 to 112 pounds. Mixture, 
1 part cement and 5 parts sand, by measure. Cost for cement per post, 17 
pounds, 10.2 cents; sand, 1 cubic foot, 3.7 cents. For cost of reinforce¬ 
ment, see table below. 
REINFORCEMENT 
COST 
FINAE BREAK 
Poured Posts 
Tamped Posts 
Kinds of Wire 
Weight 
per 
Post 
Cost 
per 
Post 
Cost of 
material in 
each post 
Pounds 
to 
break 
Remarks 
Pounds 
to 
break 
Remarks 
No. 10,4 twisted 
strands of 2 
wires 
2M 
10.0c 
23.9c 
235 
Mixture broke 
(poor) 
97 
Mixture not 
strong enough 
No. 10, twisted 
4 long and 2 
short 
3 
12.0c 
25.9c 
220 
Extra wires did no 
good 
98 
Posts split. 
Mixture weak 
Old barbed,4 
long strands 
3.3c 
17.2c 
113 
Wires broke 
117 
Wires broke 
Old barbed, 4 
long and 2 
short 
2 ' 
4.0c 
17.9c 
137 
Mixture and wires 
about equal 
113 
Mixture and 
wires about 
equal 
New barbed, 4 
long strands 
l?i 
6.6c 
20.5c 
123 
Mixture and wires 
about equal 
108 
Mixture and 
wires about 
equal 
New barbed, 4 
long and 2 
short 
2 
8.0c 
21.9c 
140 
Wires broke 
103 
Wires poorly 
placed 
No. 14, 4 twist¬ 
ed strands of 
3 wires each 
1% 
6.6c 
20.5c 
130 
Wires broke 
No. 14, 4 long 
and 2 short, 3 
twisted strands 
each 
2 
8.0c 
21.9c 
175 
Wires and mixture 
about equal 
* This table is a summary of Tables 5 and 7, Bulletin 14 8, Colo. Exp 
Sta. 
