Big Cedar-LR 920324March 24, 1992
Project No. 824.1/Report No. 3
Matthews Investments Southwest, Inc.
5220 Spring Valley Road, Suite 500
Dallas, Texas 75240
ATTN: Mr. Tim House
Re:
Construction Materials Testing
Utility Fills
Big Cedar Addition
Harris Road
Coppell, Texas
Gentlemen:
Submitted here are the results of testing and observation of
construction materials at the referenced project. This report
addresses activities for the period February 28 through March 6,
1992.
On February 28, 1992, one sample of material used for utility fill
was obtained and returned to the laboratory for development of an
optimum moisture-density relationship (Standard Proctor Curve). The
test result is attached as Plate 1.
During the period of February 28 through March 6, 1992, a total of
16 field density tests were taken on the fill placed within the
utility trenches. Test results are shown on Plate 2. Where tested,
the materials were found to be in compliance with project
specifications.
If any questions arise, do not hesitate to call.
Sincerely,
y~ROUP
Ronald F. Reed, P.E.
BES/RFR/aap
copies submitted:
(2), Matthews Investments Southwest, Inc./
Mr. Tim House
(1) Goodwin & Marshall, Inc./Mr. Robert Marshall
(1) City of Coppell/Mr. Larry DaVis
2424 STUTZ DRIVE · SUITE400 · DALLAS, TEXAS75235 · 214/350-5600 · (FAX) 214/350-001u
---~ REED ENGINNERING GROUP
118
116
114
112
110
108
8 10 12 14 16 18
Moisture Content (O/o)
Standard Proctor
25
and 12 inch drop using
Test performed on minus
Boring No. m Location
Compaction Test No. 4
blows per each of 3 .. layers, with 5.5 pound hammer
4 inch diameter mold
#4 sieve size material
Big Cedar Addition, Harris
Road, Coppell, Texas
De~h-Sample No.
Classification Yellowish-brown clayey sand
Liquid Limit %
Plastic Limit %
Plasticity Index
Maximum Unit
Dry Weight 115.0
Optimum
Moisture Content 12.7
OPTIMUM MOISTURE DENSITY CURVE
Plate I
GEOTECHNICAL CONSU~ ~
reed engineering
BIG CEDItR I~DDZTZON
HitRRZB ROAD
COPPELL, TEY~B
REPORT NO. 3
Date
02-28-92
03-03-92
03-06-92
Test
No.
22
23
24
25
26
27
28
29
3O
31
32
33
34
35
36
37
Field Density Tests
STA No./
Depth
Below Unit
Final Dry
S.G. Weight
o+4o/
0+40/A
0+40/B
0+40/B
2+80/B
2+80/B
2+8o/
2+8§/A
2+60/C
2+65/C
Lot 24/B
Lot 5 /A
5+10/A
5+15/
Lot I /A
Lot 35/C
Com-
pac-
Moisture tion
content Curve Level
(%) No. f%)
1.0 106.2 17.8 3 96.3
4.0 105.0 19.6 3 95.2
1.0 108.5 18.0 3 98.3
4.0 113.3 13.6 I 95.1
1.0 107.6 18.6 3 97.6
4.0 107.0 17.9 3 97.0
1.0 107.4 14.2 3 97.4
4.0 110.1 11.3 4 95.7
1.0 109.3 10.7 4 95.0
3.0 109.8 11.3 4 95.5
1.5 110.3 12.5 4 95.9
3.0 110.6 12.9 4 96.2
1.0 111.1 12.8 4 96.6
4.0 111.2 11.8 4 96.7
3.0 110.0 14.6 4 95.7
2.0 110.7 12.7 4 96.3
P1 ate 2
GEOTECHNICAL CONSULTANTS -