14 BULLETIN 105, Ij, s. DEPARTMENT OF AGRICULTURE. 
Table 17. — Materials and cost data for brick pavement at Chevy Chase, Md. 
Description: 
Length of section feet. . 980 
Area of section square yards . . 2, 055 
Quantities of materials (per square yard) : 
0.150 
0.065 
0.145 
0.061 
40 
0.005 
0.031 
Gravel cubic yard . 
Sand do... 
Cement barrel. 
Pavement. — 
Sand cushion cubic yard . 
Brick number . 
Sand in grout cubic yard . 
Cement in grout barrel. 
Cost per square yard: 
Base — 
Gravel cents. 
Sand do . . . 
Cement do . . . 
Mixing and placing do . . . 
Pavement — 
Sand in sand cushion do . . . 
Preparing sand cushion .' . do . . . 
Brick do. .. 
Unloading and piling brick from car do . . . 
Hauling and piling brick by roadside do . . . 
Laying brick do . . . 
Rolling brick do . . . 
Sand in grout do . . . 
Cement in grout do . . . 
Grouting do . . . 
Protection 
General — 
Preparing subgrade . 
Superintendence. . 
General expense . . . 
Miscellaneous 
Total cost: 
Per square yard . 
Total section. . . 
.do.. 
.do., 
do., 
do., 
do.. 
do.... 
27.30 
9.30 
23.40 
17.45 
10.10 
3.66 
80.00 
15. 23 
11.18 
5.20 
1.76 
0.80 
5.08 
2.96 
1.57 
21.44 
10. 43 
4.54 
6.81 
258. 21 
$5, 515. 86 
COMPLETE SUMMARY OF 1912 PROJECT AT CHEVY CHASE, MD. 
On January 29, 1914, a careful inspection of all the experiments 
was made, and their condition was reported as follows: 
Experiments Nos. 1 and 2, the bituminous concretes, are both in 
excellent condition. The section laid under the Topeka specification 
has a slightly wavy surface as compared with the District of Columbia 
pavement, and has compressed in a few places below the top of the 
1 Includes also $136.59, the cost of a concrete shoulder, 6 inches by 8 inches, 1,330 linear feet at 10.12 cents 
per linear foot; and S73.05, the cost of an expansion joint, 1,900 linear feet, at 3.84 cents per linear foot. 
