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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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