Amberpoint BP 2R-LR060307 (2)
March 7, 2006
lrerracan
Consulting Engineers & Scientists
Terracen Consultants, Inc.
8901 Carpenter Freeway, Suite 100
Dallas, Texas 75247
Phone 214.630.1010
Fax 214.630.7070
WWW.terracon.com
Transwestem Commercial Services
5001 Spring Valley Road, Suite 600W
Dallas, Texas 75244
Attn: Mr. David Gunderson
Re: Moisture Evaluation NO.5
Amberpoint Building 6
Sandy Lake Road
Coppell, Texas
Terracon Project No. 94051418.0228
Dear Mr. Gunderson:
Terracon has completed its evaluation of moisture levels achieved by water pressure injection at the
above referenced site. This was the third evaluation performed by Terracon for the referenced
project (Building 6). The building pad was injected with two additional passes of water (for a total of
eight) to a maximum depth of about 7 feet prior to this evaluation. The injection process was
observed on a full time basis by a representative of T erracon.
Eight borings were drilled on March 1,2006. Each boring was continuously sampled to a maximum
depth of 7 feet with thin-walled tube samplers. The samples were extruded, logged, sealed and
packaged at the site for transportation to the laboratory. In the laboratory, moisture content and
hand penetrometer readings were determined on one-foot intervals. Swell tests were performed on
selected soil samples.
A diagram depicting the approximate boring locations is attached. Laboratory data is provided on
the attached Summary of Laboratory Tests.
Review of the laboratory data generally indicates out of eight borings only two borings (B-59 and B-
60) are below desired moisture levels. It is Terracon's recommendation that at least two additional
injection passes with water be performed in the area of borings and B-60 as indicated on the
attached Figure 1. Additional borings on Building 6 are n onside d necessary.
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Delivering Success for Clients and Employees Since 1965
More Than 70 Offices Nationwide
Transwestern Commercial Services
March 7, 2006
Project No. 94051418.0228
lli!rracan
Please contact us if there are any questions concerning the test results or recommendations.
Sincerely,
'rerraccn__~-b...l~
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alph B. Barnes, Jr., P.
Principal
cc: Lee Stone - City of Coppell
Larry Davis - City of Coppell
Leon Davis - Rogers O'Brien Construction Company
Richard Nordyke - O'Brien & Associates
Keith Leslie - Technistructures
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LABORATORY TEST RESULTS
B-59
Depth Hand Moisture Moisture Load Swell
Penetrometer Content After
(ft) (tst) Content ( % ) Swell Test ( % ) (psf) (%)
0-1 4.00 16.1 - - -
1-2 4.5+ 14.4 19.3 383 4.2
2-3 4.5+ 16.8 - - -
3-4 3.25 19.0 - - -
4-5 4.5+ 15.1 19.4 750 4.6
5-6 4.5+ 11.5 17.0 875 0.8
6-7 - 8.9 - - -
B-60
Depth Hand Moisture Moisture Load Swell
Penetrometer Content After
(ft) (tsf) Content ( % ) Swell Test ( % ) (pst) (%)
0-1 2.25 19.5 - - -
1-2 4.5+ 14.0 19.2 375 3.1
2-3 4.5+ 17.5 - - -
3-4 4.5+ 14.0 18.2 625 2.6
4-5 4.5+ 15.2 - - -
5-6 3.50 18.5 - - -
6-7 3.50 14.0 19.4 1000 2.0
B-61
Depth Hand Moisture Moisture Load Swell
Penetrometer Content After
(fl) (tsf) Content ( % ) Swell Test ( % ) (pst) (%)
0-1 1.00 27.1 - - -
1-2 1.25 21.0 - - -
2-3 1.50 44.9 - - -
3-4 2.75 20.0 20.6 625 0,0
4-5 3.25 17.8 19.6 750 0.2
5-6 4.5+ 15.6 17.7 875 0.0
6-7 4.5+ 12.5 - - -
Terracon Job No. 94051418,0228.xls
LABORATORY TEST RESULTS
B-62
Depth Hand Moisture Moisture Load Swell
Penetrometer Content After
(ft) (tsf) Content ( % ) Swell Test ( % ) (psf) (%)
0-1 0.50 28.2 - - -
1-2 4.50 17.6 20.8 375 0.6
2-3 2.50 18.2 - - -
3-4 4.5+ 17.4 19.7 625 0.2
4-5 4.50 17.8 - - -
5-6 3.75 17.7 19.4 875 0.3
6-7 4.5+ 17.8 - - -
B-63
Depth Hand Moisture Moisture Load Swell
Penetrometer Content After
(ft) (tsf) Content ( % ) Swell Test ( % ) (psf) (%)
0-1 1.25 24.5 - - -
1-2 4.5+ 16.1 18.7 375 2.5
2-3 3.75 18.1 - - -
3-4 4.00 17.0 - - -
4-5 4.5+ 16.9 18.5 750 0.3
5-6 4.5+ 16.8 - - -
6-7 3.50 18.4 18.9 1000 0.2
B-64
Depth Hand Moisture Moisture Load Swell
Penetrometer Content After
(ft) (tsf) Content ( % ) Swell Test ( % ) ( psf) (%)
0-1 0.25 29.3 - - -
1-2 0.50 25.9 - - -
2-3 1.50 20.3 - - -
3-4 2.25 22.2 22.9 625 0.5
4-5 2.00 21.2 - - -
5-6 2.50 18.4 19.7 875 0.2
6-7 3.00 17.5 18.3 1000 0.0
Terracon Job No. 94051418,0228.xls
LABORATORY TEST RESULTS
B-65
Depth Hand Moisture Moisture Load Swell
Penetrometer Content Alter
(It) ( tsf) Content ( % ) Swell Test ( % ) (psf) (%)
0-1 0.25 28.2 - - -
1-2 1.50 22.1 - - -
2-3 2.25 19.7 20.6 500 1.1
3-4 2.00 21.3 - - -
4-5 3.00 18.8 19.8 750 0.2
5-6 3.25 15.1 - - -
6-7 3.25 16.7 19.0 1000 1.4
B-66
Depth Hand Moisture Moisture Load Swell
Penetrometer Content After
(It) ( tsf) Content ( % ) Swell Test ( % ) ( psf) (%)
0-1 1.00 26.1 - - -
1-2 2.50 20.5 - - -
2-3 2.50 19.2 20.7 500 1.5
3-4 2.25 19.4 - - -
4-5 3.25 17.4 18.3 750 0.2
5-6 4.00 14.8 - - -
6-7 3.00 15.3 16.7 1000 0.2
Terracon Job No. 94051418.0228,xls
CONCRETE COMPRESSIVE STRENGTH TEST
Report Number: 94051418.0170
Service Date: February 6, 2006
lrerracon
8901 Carpenter Frwy, Ste #1 00
Dallas, Taxas 75247
(214) 630-1010
Client:
Transwestern Commercial Services
Attn: David Gunderson
5001 Spring Valley Rd Ste 600 W
Dallas TX 75244
Report Date: March 07, 2006
Project: AmberPoint Business Park
Buildings 4, 5 and 6
505 South Royal Lane
Coppell, TX
Project No,: 94051418
Sample Information
Date Cast: February 6, 2006 Time: 4:36pm
Technician: Daniel J. Drogos
Weather Conditions: Windy, cool
Accumulative Yards: 4
Placement Method: Direct Discharge
Sample Locations: See Comments
Placement Location: Storm Drains between Building Pad #5 &
Shady Trail Rd
Material Information
Specified Strength: 3600 psi @ 28 Days
Batch Time: 3:28pm Plant: 3
Supplier: Lattimore
Truck No: 966 Ticket No: 3208523
Mix I.D. No.: 1851
Field Test Data
Test
Slump, inches:
Air Content, %:
Concrete Temperature,o F:
Ambient Temperature,o F:
Plastic Unit Weight, pcf:
Laboratorv Test Data
Result
325
4.5
63
56
152.8
Specification
Test Method
ASTM C143
ASTM C231
ASTM C1064
ASTM C1 064
ASTM C138
Set
No,
1
1
1
Specimen
10
1
2
3
Diameter Area
(inches) (sq, inches)
6.00 28.27
6.00 2827
6.00 28.27
Date
Tested
02/13/2006
03/06/2006
03/06/2006
Age at Maximum Compressive
Test Load Strength
(days) (Ibs) (psi)
7 137,270 4,850
28 174,950 6,190
28 171,510 6,070
Average (28 Days) 6,130
56
4
04/03/2006
Comments:
NOTE: Sample Location: Inlets, Sta. 9+39.72 Line C1 & Sta. 0+28.90 Line C2
Services - Obtain samples of fresh concrete at the placement locations, perform required field tests and cast compressive
strength samples.
Technician: Daniel J. Drogos
Report Distribution:
(1) Transwestern Commercial Services
(1) City of Coppell TX
(1) City of Coppell TX
(1) Rogers O'Brien Construction Co
(1) O'Brien & Assoc
(1) TechnlSlructures
Reviewed by:
~
Hussein H. Abusaad, P.E.
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
indicated above and shall not be reproduced except in full without the written consent of our company. 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
materials.
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