CF-Andrew Park 2-LR 930920 (2)North Texas Cement Company
P.O. Box 520
Midlothian, Texas 76065
LABORATORY TEST CERTIFICATE
Consigned to: Date
Quantity
Type I Silo 2
We certify that the cement contained in this shipment co~plies with the
current applicable Federal and American Society of Testing Materials
Specifications C150-91 and that the test herein reported is representative
thereof.
Chemical Tests
Al203 5.40
Fe203 2.92
MgO .94
S03 2.59
Loss on Ign. .62
Insol. Res. .14
Si02 20.94
C3S 63.0
C2S 12.5
C3A 9.4
Physical Tests
Surface Area Blaine 3106
Surface Area Wagner 1835
Autoclave Expansion .050
Gillmore Set, Initial 2:30
Gillmore Set, Final 4:50
Air Content 8.3
Sq Cm/gm
Sq Cm/gm
%
hrs:min.
hrs:min.
%
Compressive
1 Daz
3 Daz
7 Day
Strength
P.S.I.
1702
3225
4496