544	CEMENT---SET AT DIFFERENT TEMPERATURES
DETAILS OF COMPRESSION TESTS OF SPECIMENS EXPOSED to 0° F. TEMPERATURE WHILE SETTING, AND SUBSEQUENTLY AT 70° F.—Continued.
/ Marks.	Brand of cement.	Composition.			Time of setting in air at temperature of—		Dimensions.			Sectional area.	Ultimate strength.			Remarks.
		Ce- ment.	Sand.	Water.	0° F.	70° F.	Height.	Compressed surface.			Total.	Per square inch.	Mean.	
				Per cent.	Days.	Days.	Inches.	Inches.	Inches.	So. inches.	Pounds.	Pounds.	Pounds.	
H. F. 14					35.7	91	7	2.08	2.10	1.93	4.05	2,150			
							2.00	2.12	2.02	4.28	1,980	463		
							1.99	2.12	2.04	4.32	2,000	463		
							1.99	2.07	2.00	4.14	1,250	302		
							2.00	2.13	2.04	4.35	2,280	524	457	
				35.7	91	14	1.94	2.16	1.99	4.30	2,180	507		
							2.00	2.04	2.02	4.12	2,700			
							1.99	2.08	2.10	4.37	2,770	634		
							2.00	2.01	2.10	4.22	2,480	588		
							2.02	2.09	2.02	4.22	2,150	509	579	
N. J. 19					38.0	30	1	2.03	2.08	2.06	4.28	1,520	355		
							2.03	2.06	2.12	4.37	1,320	302		
							2.04	2.05	2.12	4.35	1,390	320		
							2.06	2.05	2.10	4.30	1,520	353		
							2.14	2.04	2.07	4.22	1,580	374	341	
		Neat.		38.0	30	7	2.05	2.05	2.10	4.30	3,090	719		
							2.04	2.03	2.03	4.12	2,710	658		
							2.04	2.06	2.05	4.22	2,640	626		
							2.03	2.04	2.06	4.20	2,890	688		
							2.10	2.04	2.12	4.32	2,620	606	659	
		Neat.		38.0	30	30	2.07	2.04	2.06	4.20	2,310	550		
							2.04	2.02	2.09	4.22	3,680	872		Corner gone.
							2.05	2.02	2.06	4.16	3,460	832		
							2.01	2.04	2.08	4. 24	3,860	910		
							* 2.03	1.98	2.06	4.08	3,610	885	850	
N. J.19			Neat.		38.0	89	1	2.03	2.02	2.10	4.24	1,700	401		
							2.08	2.02	2.06	4.16	!;550	373		
							2.05	2.08	2.07	4.31	1,560	362		
							2.02	2.06	2.05	4.22	1,200	284		
							2.03	2.04	2.02	4.12	L310	318	347