Vistas of C P3-CS 990223FUGRO
SOUTH,
INC.
February 23, 1999
Centex Homes
2800 Surveyor Blvd.
Carrollton, Texas 75006
2880 Virgo Lane
Dallas, Texas 75229
Tel: (972) 484-8301
Fax: (972) 620-7328
Attention:
Robert Poole
Re:
Project No. 0781-2276
Lime Series Test Results
Vistas of Coppell 3
Coppell, Texas
Dear Mr. Poole:
In accordance with your request, we obtained a representative sample of the material
exposed at the subgrade level at the referenced project on February 20, 1999.
Atterberg Limits test and an Eades and Grim Lime Series test were performed on the
representative soil sample. The results of the Atterberg Limits and Lime Series tests
are presented below:
Sample Sample Liquid Plastic Plasticity
No. Location Material Description Limit Limit Index
1 ISpring Hill Ddve, Medium gray clay 38 16 22
station 7+15,
Lyndsie Drive,
station 12+00
An Eades and Grim pH and a Lime Series test were performed on sample # 1.
results are as follows:
9
Percent Lime
Added I pH
0 8.30
3 11.77
5 12.38
7 12.38
12.40
The
A member of the Fugro group of comoanles with offices throughout the world.
Centex Homes
Project No. 0781-2276
February 23, 1999
Page 2
Based on the results of the tests, we recommend that the concrete street subgrade be
stabilized with the addition of 6 percent hydrated lime (28 pounds per square yard for a
six-inch stabilized layer). The lime and the stabilization and compaction of the subgrade
should be performed in accordance with the applicable City specifications.
We trust the information provided herein is sufficient for your present use. Please
contact us if you need any additional information or if we can be of further service.
Respectively submitted,
SMH/mv
Distribution:
FUGRO SOUTH, INC.
Saad M. Hineidi, P.E.
Sr. Vice President
Centex Homes - Robert Poole /
City of Coppell Larry Davis/
Gilco Contracting, inc. Dale Gilreath