54 



W. H. WARREN. 



Some of the results obtained in testing the ten beams 

 are recorded in Table II., and in the briquettes and prisms 

 of the concrete used in the beams in Table III. 



Table II.— TEANSVEESE TESTS OF EEINFOECED CONCEETE 



BEAM8. 

 6 ft. by 10 in. by 10 in. Supports 40 in. centres. Loaded at ends. 

 Eeinforced with Bessemer steel bars, Elastic Limit = lbs. per sq, in. 









a§^ 





iOM 



B. Mt. at 



® 





Composition — 



Age 



i « § £ 



• 



feftj 



fracture = 



a > 

 2 S 



Number 



_ , . Builders' . W Nepean 

 Cement . SanQ • * shivers 



Days 







o o a 



14-5 x y 



£0 







gss£ 



hi|-§ a 





inch tons. 



tf-S 



I. 



1:2: 2 







Tons 











No bars 



342 



O'Ol 



45 



45 



32-6 



Fig. 4 



II. 



1:2:2 

















Three f- inch bars 



357 



0-076 



15 



16 



116-0 





III. 



1:2:3 

















Three f inch bars 



353 



0-099 



19 



20 



145'0 





IV. 



1:2: 3 

















Three \ inch bars 



353 



0-081 



18 



19 



13775 





V. 



1:2: 2 

















Three | inch bars 



357 



0-146 



21 



22 



159-5 





VI. 



1:2: 3 

















Three 1 inch bars 



365 



0-157 



22 



22 



159-5 





VII. 



1:2: 2 

















Three 1 inch bars 



369 



0-109 



26 



28 



2030 



Fig. 5 



VIII. 



1:2: 2 

















Three 1 inch bars 



314 



0-074 



24 



26 



188-5 





IX. 



1:2: 2 

















Three 1 inch bars 



320 



0-079 



26 



29 



210-25 





X. 



1:2:2 

















Three 1 inch bars 



319 



0-069 



24 



27 



195-75 



„ 



Table III.— TENSILE TEST OF CONCEETE BEIQUETTES. 



Number 



Composition — 

 ~ . . Builders' . ft" Nepean 

 Cement . Sand . * shivew 



Age 



in 



Days 



Cross 

 Section 

 inches 



Total 



Load 



pounds 



Load lbs. 



per square 



inch 



Reference 



to 



Curve 



I. 



II. 



1:2: 2 

 1:2:2 



341 

 339 



4x4 

 4x4 



6700 

 6450 



418-7^ 

 403-7 ) 



Fig. 3a' 



Table IV— COMPEESSION TEST OF CONCEETE PEISMS. 

 Length equal 12 inches. 



Number 



Composition— 



„, . . Builders' . i" Nepean 

 Cement . Sand . * shivers 



Age 



in 



Days 



Cross 

 Section 

 inches 



Total 



Load 



pounds 



Load lbs. 



per square 



inch 



Reference 



to 



Curve 



I. 



II. 



1:2:2 

 1:2:2 



340 

 337 



6x6 



6x6 



104832 

 94080 



2912) 

 261 3 J 



Fig. 3a 



