STRENGTH OF CONCRETE. 



XXXVII. 



Series IV. -COMPRESSIVE TESTS OF CONCRETE COLUMNS, 

 3 feet long by 12 inches by 12 inches. 



No. 



Description. 



Proportions used in gauging. 



Weight 



per cube 



foot. 



Age 



in 



days. 



Cracked 



at tons 



per square 



foot. 



Crushed 



at tons 



per square 



foot. 



92-3 



Ce- 

 ment. 



Sand. 



Screen 

 ings. 



Stone. 



Water. 



1 



Cement, Globe brand 



1 



2 





4 



0-943 



141 



113 



920 



2 



Sand, Nepean. 



1 



2 





5 



1-079 



147 



112 



87-0 



87-0 



3 



Stone, bluestone, 1^ 





















4 



gauge and down- 



1 



3 





4 



1-050 



136 



110 



52-0 



52-1 



5 



wards. 



1 



3 





5 



1-245 



135 



109 



330 



331 



6 





1 



3 





6 



1-243 



134 



94 



19-5 



20-8 

 45-1 



7 



Cement, Globe brand 



1 



2 





4 



0-983 



128 



107 



44-5 



8 



Sand, Nepean. 



1 



o 





5 



1-079 



133 



106 



72-7 



733 



9 



Stone, sandstone, 2| 



1 



2 





6 



1103 



129 



108 



44-0 



46-7 



10 



gauge and down- 



1 



3 





4 



1-088 



127 



107 



54-0 



548 



11 



wards. 



1 



3 





5 



1-237 



130 



106 



37-0 



37-5 



12 

 13 





1 



3 





6 



1-310 



132 



104 



46-0 



46-9 



Cement, Globe and 



1 



2 





4 



0983 



134 



103 



525 



53-0 



14 



Tripod brands. 



1 



2 





5 



1-127 



133 



102 



680 



688 



15 



Sand, Nepean. 



1 



2 





6 



1-210 



128 



102 



34-0 



34-7 



16 



Stone, sandstone 2 



1 



3 





4 



1-190 



131 



98 



31-0 



31-3 



17 



inch gauge and 



1 



3 





5 



1-471 



129 



98 



28-0 



29-3 



18 

 19 



downwards. 



1 



3 





6 

 4 



1-500 



133 



99 



34 4 



341 



Cement, Tripod brand 



1 



2 





0-965 



138 



92 



51-0 



51-9 



20 



Sand, Nepean. 



1 



2 





5 



1-002 



141 



92 



91-5 



92-0 



21 



Stone, pebbles 2£ 



1 



2 





6 



1000 



136 



92 



34-5 



350 



22 



inch, and down- 



1 



3 





4 



1-203 



133 



92 



24-7 



29-7 



23 



wards. 



1 



3 





5 



1-337 



142 



92 



30-0 



310 



24 





1 

 1 



3 

 2 





6 



1-434 



129 



92 



17-0 



17-2 



25 



Cement, Tripod brand 



1 



4 



1-040 



146 



98 



49-0 



49-8 



26 



Sand, Nepean. 



1 



2 



2 



4 



1-250 



142 



97 



50-0 



50-7 



27 



Stone, bluestone 1| 



1 



2 



3 



4 



1-400 



144 



96 



48-0 



48-3 



28 



inch gauge. 



1 



3 



1 



4 



1-029 



142 



95 



64-0 



64-9 



29 





1 



3 



2 



4 



1-156 



141 



92 



677 



68-2 



30 

 31 





1 



3 



3 



4 



1-368 



140 



92 



46-0 

 630 



46-8 

 63-7 



Cement, Tripod brand 



1 



2 







603 



127 



92 



32 



Sand, Nepean. 



1 



3 







0-674 



126 



92 



50-5 



55-5 



33 





1 



4 ... 





0-751 



120 



92 



320 



32-9 



