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TESTS
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KALMATRON®
KF-A
City and County of San Francisco
Department of Public Works
Bureau of Construction Management
Materials Testing Laboratory
(A copy of the original test will be sent
upon request. Please
contact our offices.)
Compressive Strength of Molded Concrete Cylinders
ASTM C-39
Comparative Testing of Kalmatron® Trial
Batch #4
Date Received: 22-Oct-01
Control Mix Design
Slump = 9 inches
28 Day Average PSI = 4,760
|
Date
Tested
|
Age
(Days)
|
Diameter
(inches)
|
Area
(inches²)
|
Machine
Load (Lbs.)
|
Strength
(PSI)
|
Tested
By
|
|
25-Oct
|
3
|
6
|
28.27
|
64,620
|
2,290
|
AH
DS
|
|
29-Oct
|
7
|
6
|
28.27
|
97,003
|
3,430
|
AH
DS
|
|
5-Nov
|
14
|
6
|
28.27
|
115,243
|
4,080
|
AH
DS
|
|
19-Nov
|
28
|
6
|
28.09
|
130,418
|
4,640
|
AH
DS
|
|
19-Nov
|
28
|
6
|
28.09
|
137,093
|
4,880
|
AH
DS
|
|
22-Jan
|
92
|
Not Available Yet
|
|
|
|
|
KF-A Mix Design
Slump = 2.5 inches
28 Day Average PSI = 5,860
|
Date
Tested
|
Age
(Days)
|
Diameter
(inches)
|
Area
(inches²)
|
Machine
Load (Lbs.)
|
Strength
(PSI)
|
Tested
By
|
|
25-Oct
|
3
|
6
|
28.27
|
96,144
|
3,400
|
AH
DS
|
|
29-Oct
|
7
|
6
|
28.27
|
126,657
|
4,400
|
AH
DS
|
|
5-Nov
|
14
|
6
|
28.27
|
152,637
|
5,400
|
AH
DS
|
|
19-Nov
|
28
|
6
|
28.27
|
164,399
|
5,810
|
AH
DS
|
|
19-Nov
|
28
|
6
|
28.27
|
166,845
|
5,900
|
AH
DS
|
|
22-Jan
|
92
|
Not Available Yet
|
|
|
|
|
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