Bank One-LR030828REPORT Of DRILLED PIER OBSERVATION
Report Number: 94031289.0017
Service Date: August 15, 2003
lrerracan
8901 Carpenter Frwy, Ste #100
Dallas, Texas 75247
(214) 630-1010
Client: Bank One Texas NA
Attn: Danny Buckner
8111 Preston Suite 250
Dallas TX 75225
Report Date: August 28, 2003
Project: Bank One - Coppell TX
616 Nodh Denton Tap Rd
Coppell, TX
Project Number: 94031289
**REVISED
Services: Drilled pier observation.
On this date, HBC/Terracon's technician arrived at the above referenced jobsite as scheduled for
drilled pier observation. See the attached sheet(s) for recorded data.
NOTE:
Pier D/4 1'* the concrete placed in this pier hole had a concrete temperature of 99°F.
The concrete was placed with approximately a 3 inch slump. The concrete
personnel had to stand at the top of the chute on the concrete truck and push the
concrete into the pier hole.
HBC/Terracon's technician suggested to the contractor that it was not a good idea
to place this load of concrete and that it should be sent back to the batch plant. The
concrete personnel had already placed some of the concrete load into the pier hole.
The pier drillers refused to pull the reinforcing steel back out of the pier hole and auger
out the potentially bad concrete out of the pier hole. Therefore, to prevent a cold joint
in this pier, the contractor was forced to place the rest of the concrete into the
pier hole. The next concrete truck would have taken approximately an hour or
more before arriving at the jobsite. This concrete load was acting as if it was
wanting to flash (setup) on the concrete personnel. Pier D/4.1 was the only
pier that this load of concrete was placed in. The contractor sent the other half
of this concrete load back to the plant
**This repor~ was REVISED on 08/28/03 by changing the pier identification from
D/1.4 tO D/4.1 in the first paragraph of the NOTE above.
Technician: EddieA Elrod
Repod Distribution:
(1) Bank One Texas NA
(1) City of Coppell TX
(1) Aguirre Building Systems
(1) Cily of Coppell TX
Reviewed by:
Senior Project Manager
The tests were performed in general accordance with applicable ASTM, AASHTO, or DOT test methods This report is exclusively for the use of the client
~ndicated above and shall not be reproduced except in full without the written approval of Terracon Test results transmitted herein are only applicable
to the actual samples tested at the location(s) referenced and are not necessarily indicative of the properties of other apparently similar or identical
matedals