Northlake College-LR071029
K L E I N F E L D E R
2211 Century Center 8Ivd., Suite 101, Irving, Texas 75062
972-870-0808 Metro 972-953-0398 Fax 972-870-0802
4x8 CONCRETE CYLINDER COMPRESSIVE STRENGTH REPORT
TO: Dallas County Community College Dist. PROJECT: North Lake College, N Campus
1505 South Lamar, Suite 1015 W Sandy Lake Road @ SH 121
Dallas, Texas 75215 PROJECT NO: 87015
REPORT DATE: 10/29/2007
TECHNICIAN: J. Mayo REPORT NO: 107068
I CONCRETE FOR: Piers C-0.5, 0-0.5 and F-0.5 I
CYLINDER AGE DATE DATE AVG. CYLINDER CYLINDER FRACTURE TOTAL COMPRESSIVE
MARK DAYS CAST TESTED DIAMETER, IN. AREA, IN.2 TYPE LOAD, LBS STRENGTH, PSI
107068A 7 10/19/07 10/26/07 4.01 12.63 5 34,860 2,760
1070688 28 10/19/07 11/16/07
107068C 28 10/19/07 11/16/07
1070680 HOLD 10/19/07 HOLD
SUPPLIER: Southern Star AVERAGE 28 DAY STRENGTH:
MIX DESIGN: DOOOOOOO7781 28 DAY STRENGTH REQUIREMENT: 3,000
ADDITIONAL INFORMATION IF MADE BY KLEINFELDER:
I ACTUAL SPECIFIED 1
TRUCK NO. : 26 SLUMP: 5875
TICKET NO. : 1117100 AIR TEMP. : 85
ACCUMULATED YDS : 20 of 28 MIX TEMP.: 89
TIME CAST: 5:26 PM AIR CONTENT: N/A
TIME IN TRUCK: 34 min WATER ADDED (gal) : 5
WEATHER: Clear UNIT WEIGHT: N/A
:
FRACTURE TYPES:
1 Reasonably well-formed cones on both ends. less than 1 in. (25 mm) of cracking through caps.
2 Well-formed cone on one end, vertical cracks running through caps, no well-defined cone on other end.
3 Columnar vertical cracking through both ends. no well-formed cones.
4 Diagonal fracture with no cracking through ends; tap with hammer to distinguish from Type 1.
5 Side fractures at top or bottom (occur commonly with unbonded caps).
6 Simil~r In Tvne 5 but end of "vlinder is nnint"d.
NOTES: . Compressive strengths determined in accordance with ASTM C39 . Cross-sectional area, diameter and length are standard unless otherwise noted.
. Portions of the information contained in this report have been furnished by others. . Cylinders cured in laboratory in accordance with ASTM C31 unless
otherwise noted. . Unbonded caps utilized in accordance With ASTM C1231 unless otherwise noted. Because of the violent release of energy stored in pads,
the broken cylinder rarely exhibits conical fracture typical of capped cylinders and the sketches of types of fracture in Test Method C39 are not descriptive.
. Samples taken in accordance with ASTM C172 where practicable. . When applicable, the following test procedures were used: Slump ASTM C143;
Unit Weight ASTM C138; Air Content ASTM C173/ C231; Temperature ASTM C1064
Reports to:
Starling Richardson Canst.; Attn: Eric Stanaland (eps@starlingrichardson.com) KLEINFELDER
Starling Richardson Canst.; Attn: Andy Munoz (amunoz@starlingrichardson.com) lh//*,~
DCCCD Bond Office; Attn: Brenda Spinelli (brenda.spinelli@dcccd.edu)
DCCCD Bond Office; Attn: James Williams Uames.williams@dcccd.edu)
DCCCD Bond Office; Attn: Mike Daniels (mike.daniels@dcccd.edu) ~oel Peters, P.E.
Jacobs; Attn: Andrea Stogner (Andrea.stogner@jacobs.com)
Jacobs; Attn: Jennifer Blount (Jennifer.blount@jacobs.com)
1- City of Coppell; Attn: Larry Davis
1- City of Coppell; Attn: Lee Stone
The results shown on this report are for the exclusive use of the client for whom they were obtained and apply only to the samples tested andlor inspected. They are not intended to be
indicative of the qualities of apparently identical products. The use of our name must receive prior written approval. Reports must be reproduced in their entirety.