 |
|
Pipes - Segmental block This site contains files in PDF format. |
|
|
Pipes - Segmental block This site contains files in PDF format. |
|
J. F. Springer, "Segmental Block Sewers," Municipal Engineering, Volume LI, No. 6 (December 1916), pp. 214-216. Frames version with JavaScript. PDF version (printer-friendly). |
| Walter C. Parmley, The Parmley System of Arch Construction: Catalogue E, Segmental Concrete, Plain and Reinforced (New York, NY: Walter C. Parmley, 1927), pp. 3-68. Frames version with JavaScript. PDF version - 8.8 mb (printer-friendly). |
 |
|
 |
|
