596	CEMENT—SET AT ORDINARY TEMPERATURES,
Compression tests of cements—Continued.
Sec- tional area.	Ultimate strength.			Remarks.
	Total.	Per square inch.	Mean.	
Sq. Inches.	Pounds.	Pounds.	Pounds.	
4.22	2,750	652		
4.14	2,640	638		
4.06	2,600	640		
4.10	2,590	632		
4.10	2,500	610	634	
4.16	3,450	829		
4.14	3,800	918		
4. 08	3,650	895		
4.08	3,480	853		
4.16	3,400	817	862	
4.33	1,350	312		
4.20	1,300	310		
4.14	1,200	290		
4.20	1,170	279		
4.16	. 1,250	300	298	
4.12	1,610	391		
4.12	2,050	497		
4.22	1,810	429		
4.16	1,970	474		
4.18	1,950	467	452	
4.06	460	113		
4.18	470	112		
4.14	410	99		
4.14	450	109	108	
4.18	990	237		
4.22	1,080	256		
4.20	910	217		
4.24	970	229		
4.10	880	215	231	
4.18	183 ־	44		
4.14	243	59		
4.24	203	48		
4.12	238	58	52	
Dimensions.
Compressed
surface.
Height.
Marks.	Brand of cement.	Composition.			Time of setting in—	
		Ce- ment.	Sand.	Water.	Air.	Water.
Ak. lxl			1	1	Per cent. 40.6	Days. ' 1	Days. 6
						
						
						
						
		1	1	40.6	1	29
						
						
						
		1	2	62.5	1	6
Ak. 1x3							
						
						
						
		1	2	52.5	1	29
						
						
						
		1	3	75.0	1	6
						
						
						
		1,	3	75.0	1	29
						
						
						
		1	4	89.6	1	6
						
						
						
Inches. 2.02 2.01
2.03
2.05
2.05
2.00 2.00 2. C 2.01 2.00
2.11
2.07
2.03
2.06
2.08
2.02
2.04
2.1
2.05
2.05
2.03
2.05 2. C
2.04
2.04
2.05
2.07
2.05
2.01
2.09
2.07
2.08 1.97
Inches.
2.09 2.06 2.00 2.00 2.00
2.08
2.05
2.01
2.03 2.08
2.05
2.03
2.04
2.04 2.00
2.04
2.02
2.05
2.03
2.04
2.00
2.04
2.04
2.03
2.05
2.06
2.03 2.07
2.04
2.00 2.00
2.04
2.09
Inches.
1.99 2.00
1.99 2.00
1.99
1.99
2.00
1.98
2.00
1.99
2.02
2.04
2.03 2.02 2.00
2.06 2.08 2.02
2.03
2.03
2.02
1.98
1.99
2.00
2.00 2.00
1.99 2.00 2.00
2.03 2.01 2. 00 2.02