TABLE 216.— ULTIMATE STRENGTHS OF BRICK MASONRY 44 231 



64 Nat. Bur. Standards Res. Pap. RP 108. 



* C — portland cement; L — Lime; S — sand, proportions by volume. See American Standard Asso- 



ciations Building Code Requirements for Masonry (A41. 1-1944). 



TABLE 217.— STRENGTH AND STIFFNESS OF AMERICAN BUILDING STONE* 



(All values in pounds per square inch.) 



* Furnished by Herbert Insley, National Bureau of Standards. t Wet samples 12 percent less. 



1 Perpendicular to bed. § Parallel to bed. 



SMITHSONIAN PHYSICAL TABLES 



