STRENGTH OF CEMENT MORTAR AND CONCRETE. 



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'00008 -00016 "00024 '00032 "0004 '00048 "00056 "00064 "00072 '0008 

 Extensions in inches. 



Fig. 5 — Tensile Tests of Mortar Briquettes, Age 6 months. 

 No. 1 — One Hemmoor Cement to three Emu Plains sand. 

 No. 2— „ „ four 



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 Extensions in inches. 



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Fig. 6 — Tensile Tests of Mortar Briquettes. 

 No. 1, age three months, one Hemmoor cement to two EmufPlains sand. 

 „ 2, „ „ „ three „ 



« 3, „ „ „ four 



„ 4, age two months, „ „ four „ 



