COMPRESSIVE AND TRANSVERSE STRENGTHS OF BRICKWORK. LXXV. 



Table I.— BRICK COLUMN No. 4 C. 



Built in mortar, 1 part Hemmor Cement to 4 parts of Nepean River 

 sand, with 15% water. 

 Length of column = 56 inches. 



Length over which the compressions were observed = 53^ inches. 

 Cross section = 9 inches by 9 inches = 8 1 square inches. 

 Age when tested, 4 months. 



Total 



Readings of Dial Extensometers in 

 Millimeters. 





Load in 

 Tons. 









Remarks. 



Front. 1 



Back. 1 Mean. 



Difference 



2 



0-22 



0-20 



0'21 



03 





4 



0*23 



0-25 



0-24 



0-03 





6 



0-24 



0-29 



0-27 



002 





8 



026 



032 



0-29 



0'03 





10 



0-28 



0-35 



0-32 



0-04 



compression per ton up to 



12 



0-33 



0-38 



0-36 



003 



10 tons 00145 mm. 



14 



0-36 



0-42 



0-39 



0-05 





16 



0-42 



0-45 



0-44 



0-03 





18 



0-45 



0-49 



0-47 



0-02 





20 



0-47 



0-51 



0-49 



005 



compression per ton up to 

 20 tons 0-0162 mm. 



22 



0-52 



055 



0-54 



04 





24 



0-57 



0-59 



0-58 



0-03 





26 



0-61 



0-61 



0-61 



004 





28 



0-65 



0-64 



0-65 



0-04 





30 



0-70 



0-68 



0-69 



0-06 





32 



0-77 



0-72 



075 



0-04 





34 



0-82 



075 



0-79 



0-04 





36 



6*87 



0-79 



0-83 



o-ii 



slight crack across one 

 corner of fifth course 



38 



1-03 



0-84 



0-94 



007 



from top. 



40 



ri4 



0-88 



1-01 



004 



compression per ton np to 

 40 tons 0-0209 mm. 



42 



1-18 



0-91 



1-05 



005 





