Waters Edge P2-LR 940822reed engineering
GEOTECHNICAL CONSULTANTS
August 22, 1994
Project No. 1132.3
Report No. 2
Matthews Investments Southwest, Inc.
5220 Spring Valley, Suite 500
Dallas, Texas 75240
ATTN: Mr. Tim House
Re:
Construction Materials Testing
Waters Edge, Phase II
Sandy Lake Road and McArthur Boulevard
Coppell, Texas
Gentlemen:
Submitted here are the results of testing and observation of
construction materials at the referenced project. This report
addresses the activities for the period of June 20 and 21, 1994.
On June 20, 1994, gradation of the soil-cement mixture was checked on
Lacuna Drive. The test results are as follows:
Station 7+00:
Station 5+00:
Station 3+00:
70% passing No. 4 Sieve;
65% passing No. 4 Sieve; and
60% passing No. 4 Sieve.
Based on the gradation results and visual observations, the subgrade
was approved for compaction. A representative sample of the soil-
cement mixture was obtained and returned to the laboratory for
development of an optimum moisture-density relationship (Standard
Proctor Curve). Test results are attached as Plate 1.
On June 21, 1994, three field density tests were performed on the
compacted subgrade. Test results are summarized on Plate 2. Where
tested, the materials were found to be in compliance with project
specifications.
2424 STUTZ DRIVE · SUITE400 · DALLAS, TEXAS75235 · 214/350-5600 · (FAX) 214/350-0019
Matthews Investments Southwest, Inc.
Project No. l132.3/Report No. 2
August 22, 1994
Page 2
Additional reports will be submitted as the work progresses.
have any questions, do not hesitate to call.
If you
Sincerely,
Ronald F. Reed, P.E.
BES/RFR/msm
copies submitted: (1)
Matthews Investments Southwest, Inc./
Mr. Tim House
(i)
Kadleck & Associates/Mr. Lynn Kadleck, P.E.
City of Coppell/Mr. Larry Davis
reed engineering
114
--- 112
110
10 12 14 16 18
Moisture Content (%)
Standard Proctor Compaction Test No. 15
25 blows per each of 3 layers, with 5-5pound hammer
and 12 inch drop using 4 inch diameter mold
Test performed on minus #4 Si eve size material
Boring No.- Location Waters Ed(]e, Phase II
Coppell, Texas
Depth - Sample No. __
Classification Li.(]ht brown cement treated clayey sand
Liquid Limit % Maximum Unit
Plastic Limit % Dry Weight 113.8 pcf
Plasticity Index Optimum
Moisture Content 13.6 %
OPTIMUM MOISTURE DENSITY CURVE
P 1 ate I GEOTECHNICAL CONSULTANTS -
reed engineering
WATERS EDGE, PHASE II
SANDY LAKE ROAD AND MCARTHUR BOULEVARD
COPPELL, TEXAS
REPORT NO. 2
Test
Date No.
06-21-94
54
55
56
Field Density Tests
Location
Depth Com-
Below Unit pac-
Final Dry Moisture tion
S.G. Weight Content Curve Level
(feet) (pcf) (%) No. (%)
Laguna Dr./
STA 4+00
Laguna Dr./
STA 7+00
Fountain
Park/
STA 1+00
0.0 111.4
0.0 112.2
0.0 114.8
15.4 15 97.9
13.5 15 98.6
16.2 15 100.9
GEOTECHNICAL CONSULTANTS --
P1 ate 2