588	CEMENT---SET AT ORDINARY TEMPERATURES.
Compression tests of cements—Continued.
Dimensions.			Sec- tional area.	Ultimate strength.			
Height.	Compressed surface.			Total.	Per square inch.	Mean.	Remarks.
Inches.	Inches.	Inches.	Sq. inches.	Pounds.	Pounds.	Pounds.	
1.98	2.02	1.99	4.02	16,410	4,080		
1.98	2.00	2.01	4.02	21,910	5,450		
2.00	2.02	1.96	3.96	17,500	4,420		
1.99	2.02	1.96	3.96	19,540	4,940		
2.02	2.00	1.98	3.96	17,320	4,380		
2. 01	2.01	2.00	4.02	16,880	4,200		
2.02	2.02	2.00	4.04	17,940	4,440		
2.02	2.03	1.96	3.98	18,910	4,750		
1.96	2.04	2.00	4.08	18,750	4,600		
2.04	2.03	2.00	4.06	16,600	4,090	4,540	
1.95	2.03	1.98	4.02	17,800	4,430		
1.98	2.03	1.95	3.96	17,200	4,340		
1.97	2.02	1.96	3.96	18,950	4,790		
2. 00	2.04	1.98	4.64	18,270	4,520		
2.04	2.03	2.02	4.10	24,100	5,880		
2.03	2.03	1.99	4.04	23,210	5,740		
1.99	2.00	1.96	3.92	19,600	5,000		
1.96	2.02	2.01	4.06	27,700	6,820		
1.99	2.07	1.99	4.12	21,600	5,240		
1.98	2.03	2.00	4.06	21,650	5,340	5,210	
2.05	2.01	2.00	4.02	19,900	4,950		
1.99	2.04	2.01	4.10	24,500	5,980		
2.00	2.03	2.00	4.06	23,100	5.690		
1.97	2.04	1.96	4.00	18,800	4,700		
1.98	2.00	1.97	3.94	22,200	5,640		
1.98	2.01	2.02	4.06	22,750	5,600		
1.97	2.01	1.97	3.96	22,600	5,710		
2.00	1.97	1.98	3.90	23,700	6,080		
2.00	2.02	2.05	4.14	23,100	5,580		
1.99	2.05	1.97	4.04	22,670	5,610	5,550	
2.00	2.00	2.00	4.00	24,900	6,230		
2.03	1.99	2.03	4.04	20,100	4,980		
2.02	2. 00	2.03	4.06	20,900	5,150		
2.00	2.03	2.01	4.08	27,400	6,720		
2.00	2.03	2.01	4.08	25,000	6,130		
2.03 1.99	1.96 2.02	2.00 2.03	3.92 4.10	24,900 25,050	6,350 6,110		
Time of setting in—
Composition.
Ce- ment.	Sand.	Water.	Air.	Water.
Neat.		Per cent.	Days. 7	Days. 0
				
				
				
				
				
				
				
				
				
Neat.			14	0
				
				
				
				
				
				
				
				
				
Neat.			21	0
				
				
				
				
				
				
				
				
				
Neat.			30	0
				
				
				
				
				
				
Brand of cement.
Lehigh .
Marks.
L. 3, May 17 ...