STRENGTH AND ELASTICITY OF REINFORCED CONCRETE. 



181 



TABLE III.— COMPRESSION TESTS OF MORTAR PRISMS. 



Length 12 inches ; Cross Section 6x6 inches. 







S =8 



1 o 





2 



1 





> 





Composition. 



1 



D 



GO to 



CXH 

 ■rf O CD 



CD P « 





S 

 1 



'3 

 p 



3 



•J ft 



bo-f 



2 3 ~ 



6 



o 



M 





a 



g ».5 

 o 



C O 00 



o 



a 



o 



ft 

 1 



j^ o 2 



5 



E 





< 



D 



O 



O 



w 



M 



£ 



« 













X106 









1 



2 



3 



4 



5 



6 



7 



8 



9 



1 cement to 2 sand 



720 



373 



•31 



5-300 



8-481 



5109 



Ilia. 1 



cracked at 







1120 



1-99 



4-110 



5-125 







170,000 







2240 



4-86 



3-830 



4-382 







pounds 







3360 



7-58 



4-220 



4-287 









1 cement to 2 sand 



721 



373 



•59 



5-410 



4-457 



4617 



Ilia. 2 



cracked at 







1120 



2-32 



4-010 



4-352 







134,000 







2240 



5-61 



3-120 



3-798 







pounds 







3360 



9-56 



1'950 



3-400 









1 cement to 3 sand 



725 



373 



•48 



4-980 



5-479 



3204 



Ilia. 3 



cracked at 







1120 



2-08 



4-360 



4-855 







108,000 







2240 



5-62 



2-410 



3-790 







pounds 



1 cement to 3 sand 



726 



373 



•58 



4-840 



4532 



2868 



Ilia. 4 



cracked at 







1120 



2-18 



4-050 



4-632 







89,600 







2240 



560 



2-490 



3-801 







pounds 



1 cement to 4 sand 



727 



373 



871 



•85 

 2-37 



3-260 

 3-060 



3-093 



2364 



Ilia. 5 



cracked at 

 78,500 







1120 



3-15 



2-950 



3-205 







pounds 







1493 



4-57 



2-770 



3-028 









1 cement to 4 sand 



729 



373 



871 



•55 

 1-85 



4-150 

 5720 



4-780 



2209 





cracked at 

 72,000 







1120 



2-04 



7-001 



4-951 







pounds 







1493 



2-96 



3-830 



4-6 



72 









