CEMENT---SET AT DIFFERENT TEMPERATURES.	531
Cements Which Set in Air at Different Temperatures.
DETAILS OF COMPRESSION TESTS OF SPECIMENS WHICH WERE EXPOSED TO 0° F. TEMPERATURE WHILE SETTING, AND SUBSEQUENTLY AT 70° F.
Dimensions.				Ultimate strength.			
			Sectional area.				Remarks.
							
Height.	Compressed surface.			Total.	Per square inch.	Mean.	
Inches. 2.00	Inches. 2.05	Inches. 2.11	Sq. inches. 4.33	Pounds. 1,410 1,120 1,280 1,220 1,290	Pounds. 326	Pounds.	
2.02	2.11	2.10	4.43		253		
2.00	2.06	2.19	4.51		284		
2.04	2.01	2.14	4.30		284		
2.01	2.09	2.13	4.45		290	287	
2.05	2.03	2.12	4.30	3,480 3,420 3,160 4,060	809		
2.05	2.04	- 2.14	4.37		783		
2.05	1.97	2.07	4.08		775		
2.00	2.05	2.12	4.35		933		
2.02	2.00	2.14	4.28	4,020	931	846	
2.02	2.04	2.13	4.35	1.390 1.390 1,320	320		
2.04	2.02	2.16	4.36		319		
2.04	2.01	2.08	4.18		316		
2.00	1.98	2.08	4.12	1,360	330		
2.02	2.06	2.17	4.47	1,430	320	321	
2.00	2.00	2.08	4.16	4,200 4,040 4,030 4,430 4,520	1,010		
2.00	2.03	2.08	4.22				
2.08	2.01	2.13	4.28		941		
2.03	2.01	2.16	4.34		1,020 1,080		
2.01	2.01	2.09	4.20			1,000	
2.07	2.01	2.18	4.38	1,320 1,500 1,340 1,380 1,670	301		
2.01	2.08	2.13	4.43		339		
2.05	2.01	2.17	4.36		307		
2.02	2.00	2.06	4.12		335		
1.98	2.00	2.08	4.16		401	337	
Composition.			Time of setting in air at temperature of—	
Ce- ment.	Sand.	Water.	0° F.	70° F.
1	1	Per cent: 36.1	Days. 5	Days. 1
				
				
				
1	1	36.1	5	7
				
				
				
1	1	36.1	14	1
				
				
				
1	1	36.1	14	7
				
				
				
1	1	36.1	21	1
				
				
		»		
Brand of cement.
Marks.
Star
☆ 1 Xl F15 ...
Star
☆ lxl FI5