HomeMy WebLinkAboutCT 05-06; CASSIA PROFESSIONAL OFFICES; PAVEMENT RECOMMENDATIONS; 2006-08-174 SOIL & TESTING, INC. San Diego Office Indib Office
Z P H 0 N E P.O. Box 600627 PHONE 83-740 Citrus Avenue - (619) 280-4321 (760) 775-5983 San Diego, CA 92160-0627 Suite G TOLL FREE 6280 Riverdale Street TOLL FREE (r J; (877) 215-4321 (877) 215-4321 Indio, CA 92201-3438 19 San Diego, CA 92120
SIN,(619) 280-4717 www.scst.com (760) 775-8362 www.scst.com
August 17, 2006 SCS&T No. 0511279
Report No. 6
Ms. Laura Barlow
Affirmed Housing Group
200 East Washington Avenue, Suite 208
Escondido, California 92025
Subject: PAVEMENT RECOMMENDATIONS
EL CAMINO REAL ROAD WIDENING
CASSIA HEIGHTS APARTMENTS
CASSIA HEIGHTS
CARLSBAD, CALIFORNIA
Dear Ms. Barlow: - -
In accordance with a request from Allgire Construction, Southern California Soil and Testing, Inc.
has prepared this letter to address existing field conditions for the El Camino Real road widening.
We understand the upper 12 inches of the existing subgrade cannot be scarified, moisture
conditioned to above optimum moisture content, and compacted to at least 95% relative
compa4ction, due to conflicts with existing utilities. Where the scarifiacation operation cannot be
performed a reinforcing geotextile such as a Tensar Biaxial Geogrid BX1 100 shall be placed
immediately below the base. The subgrade immediately below the geotextile should be compacted
to at least 90% relative compaction. Aggregate' base should he compacted to at least 95% relative
compaction. All materials and methods of construction should conform to good engineering
practices and the minimum standards set for by the City of Carlsbad.
If you ha 6t eed additional information, please call me at 619.280.4321. -
Sincer
Fo%
SOU ALIFORNI. AND TESTING, INC.
3 (Jr 63885 7- LU EXP. o93006 * - •
85
6
Project Engine -
DBA:kv . •
Addressee
Allgire Construction
13
San Diego Office
PHONE 'P.O. Box 600627, V
(619) 280-4321 San Diego, CA 92160-0627
(877) 215-4321 6280 Riverdale Street
San Diego, CA 92120
FAX
(619) 280-4717 www.scst.com
Indio Office
PH ON E 83-740 Citrus Avenue
(760) 775-5983
TOLL FREE Suite
(77) 215-4321 Indio, CA 92201-3438
FAX
(760) 775-8362 www.scst.com
4 SOIL & TESTING, INC.
rsic ,
July 24, 2006 ir Pt
Ms. Laura Barlow
Affirmed Housing Group 200 East Washington Avenue, Suite 208 F I Escondido, California-92025
Subject: - PAVEMENT RECOMMENDATIONS
CASSIA HEIGHTS APARTMENTS
CASSIA HEIGHTS V
CARLSBAD, CALIFORNIA
SCS&T No. 0511279
Report No. 5
Dear Ms. Barlow:
-
In accordance with a request from Allgire Construction, Southern California SQil and Testing, Inc.
has prepared this report to provide pavement recom'niendations for El Camino Real widening. The
- pavement section is based on an "R" Value test performed on a representative sample of the
subgrade soils.
f-.1401i - "
1 3.0 4Lws-A
*Class 2 Base per latest edition of "Standard Specifications for Public Works Construction, Regional Supplement
Amendments"
S
V V
The upper 12 inches of subgrade should be scarified, moisture conditioned to above optimum
moisture contents, and compacted to at least 95 percent of the maximum dry density determined in
accordance with the ASTM D 1557 laboratory test proedures. All soft or spongy areas should be
V
removed .and replaced with compacted fill. Aggregate base should be c9mpacted to at least 95 V
percent of its maximum dry density. All materials and methods of construction should conform to
good engineering practices and the minimum standards set for by the City of Carlsbad. V
If
d-4:t%-
need additional information, please call me at 619.280.4321.
V
B..q
S
SNjALlOIL AND TESTING, INC.
Proposed
Use
R-
Value
V Traffic
Index
Asphaltic
Concrete
Class 2
Base*
El Camino Real
V
35 9.0 6.0 inches J2inches
DBA:kv
Addressee
Allgire Construction
ATTACHMENT
Plate No. 1
SAMPLE: Ri EL CAMINO REAl
TEST SPECIMEN A B C 0 E
DATE TESTED 7/19/2006 7/19/2006 7/19/2006
Compactor Air Pressure (psi) 125 240 350
LU Initial Moisture (%) 4.3 4.3 4.3
Moisture at Compaction (%) 12.7 11.4 10.3 LU cr Briquette Height (in.) 2.49 2.45 2.50
LL Density(pcf) 118.1 120.9 121.1
EXUDATION PRESSURE (psi) 240 380 585
EXPANSION PRESSURE DIAL 0 22 91
cr pH at 1000 pounds (psi) 46 33 21 -J w H pH at 2000 pounds (psi) 97 67 41
<LU Displacement (turns) 4.45 4.1 3.8
R Value 27 46 66
CORRECTED R Value 27 46 66
"R VALUE AT 300 PSI EXUDATION PRESSURE = 35
800 700 600 500 400 300 200 100 0
EXUDATION PRESSURE psi
SOUTHERN CALIFORNIA CASSIA HEIGHTS
:TT
SOIL & TESTING, INC. BY: DBA DATE: 07/24/06
-k-JOB NUMBER: 0511279-5 PLATE NO.: