WA9302-LR 960325 (2)'EOTECHNICAL
E GEE Consultants, Inc.
EI NVIRONMENTAL
10046 Monroe Drive · Dallas, Texas 75229 · (214) 352-5433 · Fax (214) 352-6972
GENERAL REPORT
F~eport Date: March 25, 1996 SampleDate: February 28, 1996
Client: Cky of Coppell Report Number: 21
Project: 6.0 MG Water Storage Tank Project No. 95-196
Identification: Obtaining and Testing Drilled Concrete Cores
Method of Test: ASTM C42 Test Date: March 8, 1996
F:esults:
Specimen
Number
CWT-SC7 (Shotcrete)
CWT-SC8 (Shotcrete)
CWT-SC9 (Shotcrete)
.=
Avg. Estimated
Length Avg. Nominal
of Length of Maximum Un-
Specimen Specimen Avg. Size of Cross- Corrected Corrected
Before After Core Coarse Sectional Max. Compresslye Compressire
Specimen Capping Capping Diameter Aggregate Area L/D Load Strength Strength
# (in.) (in.) (in.) (in.) (sq.in.) Ratio (lbs) (PSI) (PSI)
CWT-SC7 Not 3.96 2.70 Fine 5.73 1.47 39,600 6,910 6,620
Measured
CWT-SC8 Not 3.83 2.69 Fine 5.68 1.42 54,000 9,510 9,050
Measured
CWT-SC9 Not 3.73 2.69 Fine 5.68 1.39 57,400 10,110 9,590
t I Measured
I I I I I i I
'l'~'pe of Fracture: Colic
Age of Specimens: 9 Days
Direction of Application of Load
With respect to Horizontal Plane of' Concrete as Placed: Perpendicular
1~ 5oisturc Condition at Time of Testing: Air dried
A~'erage Compressive Strength of Cor~s: 8,420
Above test result do meet ACt 318 requirements for 6,000 Ibs./sq.in.
Cored by: L.D.
Mr. Larry Davis - Ci,~, of Coppell
Mr. Gary Hendticks - Shin~ek, Jacobs and Finklea
( }kll JellelY, al/d rcpln~ are t'tll' tile exclusive use ol the client Ill whotll they are addressed. The use of our nanle ~nust receive our prior writtell approval. Our leuel:, and repl~rt.~ apply only m the sample tested and/.r inspected, and are
not necessarily indicative ol the quantities tff apparently identical or similar ph:dUCB