DUST PREVENTION AND ROAD PRESERVATION, 
1916. 
29 
TaBLE No. 33.—Tests on galvanized metal used in experimental corrugated culverts on 
Texas post road. 
Metal. 
Spelter 
Struc- | per 
ture | square 
No. | foot of 
metal. 
Ounces. 
109 2.97 
65 2.59 
68 2. 80 
109 2.74 
110 2.58 
74 2. 84 
94 2.48 
101 2. 59 
143 2.48 
127 1.90 
128 1. 86 
143 2. 02 
127 2. 44 
134 2.41 
149 2.50 
Analysis of base metal. 
Car- Sul- | Phos- | Man- | Cop- Sili- 
bon. | phur. | phorus.| ganese.| per. con. 
Per ct.| Per ct. | Per ct. 
0.11 | 0.052 | 0.098 
- 09 -047 | .107 
-10 - 053 - 104 
-09 -043 | .013 
-10 - 049 . 017 
.09 -037 | .037 
-07 - 033 - 0095 
.07 -036 | .0095 
- 08 -048 | .0095 
- 04 -039 | .012 
-05 -040 | .0095 
. 04 .034 | .0074 
. 04 044 | .0063 
03 . 035 - 0074 
03 -045 | .0063 
TABLE No. 34.—Tests on ungalvanized metal used in experimental corrugated culverts on 
Texas post road. 
Analysis of metal. 
Struc- 
ee caer Carbon. | Sulphur.| PBS: | Man- | Copper. | sili 
P phorus. | ganese egete || Ie RCUee 
Per cent. | Per cent. | Per cent. | Per cent.| Percent.| Per cent. 
Bessemer SLOCM Er ates) z559 bei =i- 109 0.12 0. 057 0. 097 0. 34 O}000)|Reaeae- aes 
Onsen be isnt jee isiefe gee, 62 - 10 - 045 . 099 .37 SO04i ee Sasshe 
RS ae eeties sia hieeteeeio atk 75 - 10 - 049 . 096 .37 004) | jaseeen ses 
pees Sheelise sen sae eee 109 09 . 042 014 36 Trace 0. 005 
WOR faatee at ase -Basesee 5 110 . 08 . 040 -017 - 26 2004s pees 
ID Tee RSS ee tee ee ee 131 . 08 . 048 - 012 .38 204). | Sese8s vanes 
Copper-bearing steel........---- 98 07 - 032 - 0084 .32 B22, .015 
WO Ss. daeeis == see eese ane t 131 . 09 . 057 - 013 - 43 LD ls Shee e 
BD OS Ase oa ane rs = aaipinie 143 . 08 - 057 - 012 -43 seats | aueerseret 
Copper-bearing iron.......-..-.- 97 . 04 . 036 . 0084 . 043 a2, -O1 
LD SRSA Sala ee 128 - 05 . 040 - 0095 - 056 RDS ra ial 
TD) Oe apeitereene = Sts bicrciat seven 143 . 04 - 035 - 012 -019 eZ nileaseeonene 
AMS OGILOM qeeee toe (sei asec -/= 103 - 02 . 022 - 0053 - 028 - 006 . 00 
ID YTjE AES 8 Re ee Senet 148 - 03 - 032 . 0074 - 028 ROLGIIE mes eee 
WOE soecte ne dent seb ecsice- 149 - 03 - 027 - 0053 - 028 SOU2) bee eo oe 
TABLE 35.—Condition Record March, 1917 
Metal Struc Location Position Condition, March, 1917 
; ture No D 
Station. 
Galvanized Bessemer steel... -..- 109 168-+-00 | North......... In apparently new condition. 
No deterioration of spelter, 
end entire absence of scale or 
rus 
WD) OSs Sets ice ese ce deoecceese 65 V4 Te OO! | Hoe oS aciae eee Do. 
10 Gy. 52. iis ioe od Re eee Ae ee 68 P5TS PEO. SSeS ek ee Do. 
Galvanized open-hearth steel. - - .- 109 168-+-00 | South center. . Do. 
TD oz ce pe 2 em Be 110 112+-50 | North..-....... Do. 
OEE Es sea ee kes cae. 74 V748-870) | tec tence ne Do. 
Galvanized copper-bearing steel. 94 BOSMAMGE: SI ZUE REE es Do. 
DO ee eo eau 8 101 SOS ES: ses a eas Do. 
Dor seeiets . CRU AC LE ene eee 143 937+00 | North......--- Do. 
Galvanized copper-beraing iron. 127 716+00 | South........- Do. 
DOE ISA SAS 128 726+00 |....- dole. Do. 
DO eerste oe Sod 143 937+00 | North center. Do. 
Galvanized ingot iron..-.-.-.---- 127 716+00 | North.....-.-.- Do. 
LD Ose ere hn ee 134 ST5--00) Woe ce erence Do. 
Dae see tee eed ies ses 3 149 1018+00 } North........- Do. 
