548	CEMENT---SET AT DIETE RENT TEMPERA TITRES
DETAILS OF COMPRESSION TESTS OF SPECIMENS EXPOSED TO 39° F. TEMPERATURE WHILE SETTING, AND SUBSEQUENTLY AT 70° F.—Continued.
Remarks.
Ultimate strength.		
	Per	
Total.	square inch.	Mean.
Pounds.	Pounds.	Pounds.
7,320	1,730	
8,490	2,020	
7,500	1,760	
7,010	1,750	
7,490	1,740	1,800
12,420	2,970	
11,960	2,900	
9,800	2,360	
9,600	2,290	
9,790	2,450	2,590
10,200	2,310	
9,500	2,330	
9,010	2,260	
10,400	2,450	
9,190	2,160	2,300
10,900	2,510	
11,710	2,760	
9,500	2,290	
11,550	2,700	
10,010	2,370	2,530
11,200	2,540	
11,420	2,670	
12,800	2,970	
11,400	2,700	2,700
18,500	4,560	
19,200	4,730	
19,400	4,830	
22,600	5,590	
19,600	4,830	4,9ÌÓ
Sectional
area.
Sq. inches.
4.24
4.20
4.26
4.00
4.30
4.18 4.12 4.16
4.20
4.00
4.41 4.08 3.98
4.24
4.26
4.35
4.24 4.14
4.28
4.22
4.41
4.28
4.31
4.22
4.06
4.06 4.02 2.04
4.06
Dimensions.
Compressed
surface.
Inches.
2.07 2.06
2.08
2.04 2.08
2.05
2.04
2.05 2.08
.2.01
2.10 2.01 2.02
2.04
2.05
2.07
2.10
2.04
2.08 2.07
2.10
2.04
2.05
2.05
2.03
2.03
2.02
2.03
2.04
Inches.
2.05
2.04
2.05
1.96
2.07
2.04
2.02
2.03
2.02
1.99
2.10
2.03
1.97
2.08 2.08
2.10
2.02
2.03
2.06
2.04
2.10
2.10
2.10
2.06
2.00 2.00
1.99
1.99
1.99
Height.
Inches.
2.04
2.04 2.01 2.06 2.01
2.02 2.01
2.03
2.04
2.04
2.03
2.05
2.05
2.02
2.05
2.03
2.04
2.09
2.02
2.03
2.00
2.09
2.04 2.03
Composition.			Time of setting in air at temperature of—	
Ce- ment.	Sand.	Water.	39° ¥1	70° F.
Neat.		Per cent. 25.0	Days. 32	Days. '7
				
				
				
				
Neat.		25.0	32	30
				
				
				
				
Neat.		25.0	90	0
				
				
				
				
Neat.		25.0	90	7
				
				
				
				
Neat.		25.0	90	30
				
				
				
Neat.		28.2	21	0
				
				
				
				
Brand of cement.
Storm King---
Storm King____
S. K. J. 24.
Ain. F. 19.