Shadowridge P1-3-LR 881123Maxim Engineers, Inc.
Geotechnical
Materials Testing
Consultants
November23, 1988
Mr. Steve Stolte
C2~TEX ~EAL ESTATE ~C~
North Area Location
1422 W. Main, Suite 206
Lewisville, TX 75067
In accordance with your request, we have ~ samples of the subgrade
mils fr~m the above referenced project. Classification tests were
perfo=med ~n the samples and the results w~re as follows:
Sample Location:
Liquid Limit:
Plastic Limit:
Plasticity
200 Sieve:'
~1 l ey at Station 0+50
28
16
12
56
Sample Location:
Liquid Limit:
Plastic T.~it:
Plasticity
Percent Passing No. 200 Sieve:
Sample Location:
Liquid
Plastic T.~t:
Plasticit-f Ir~lex:
Percent Passing No. 200 Sieve:
(ap~~tely)
Alley at Station 3+00 (~tely)
33
14
62
Alley at Static~ 7+00 (apprc~tely)
33
16
17
47
Current plans r~_i ..... ~d that the alley pavement cross section oonsist~ of
six (6) inches of reinforced coz~n~=te placed on a compact_~4 lime stabilized
~he pr~ect develo~ has proposed to use an eight (8) ~ reinforced
concrete pavement plaoed c~1 six (6) inches of ocm~a~_ed_ natural soils. A
oc~arison of the two pavements was perf~ based on the following design
numbers:
2342Fabens
FO. Box 59902
Dallas, Texas 75229
(214)247-7575
Mr. S~csve Stolte
CI!IqTEX REM., ES'IIATE ~Cl~l
November 23, 1988
Soil (est.i.~ V'dlUe)
0.5
0.15
O. 06
~ resultir~ ~tructux-dl number of the six (6) irlch ocr~lrete, six (6) inctl
lime pavement is 3.9. ~he resulting structural number of the eight (8) ~
~, six (6)inch Ilatural soil is 4.36.
~e af~-~m-~ioned analysis indicates that t_he eight (8) ~ co~re~ over
na~SOils is superior or equal to the six (6) ~ ocxlcrete over a lime
We trust the informatic~ provided herein is sufficient for your use. If you
have any questica~s or if you re~,ire further infonzaticm, pl,:,~-~e do not
City of Coppell
Mr. Sanford LaHue, Jr., P.E.
Maxim En~in~er~, Inc.