WA9302A-CS 961114November 14 1996
Michael A. Ma ' , E/.L~T. ~"
Graduate ~neer
City o oppell
25 arkway Blvd.
Dear Mr. Martin:
The Following information included in this packet will provide a listing of letters written
by the Texas Department of Transportation regarding the use of recycled concrete as Flexible
Base material ( TXDOT Item 247). Also included are a number of references of various
construction companies who are familiar with are material and are current users of our products.
Also included is information on our 11/2 "rock product which several companies are use for pipe
embedment material. Please review the information provided in conjunction with the test data
from our previous meeting, and if you have any further questionS, please'call me at 972-243-5820.
Big City Crushed Concrete, Inc. thanks you for your time and consideration in this matter.
Sincerely,
Mike ~chard
Big City Crushed Concrete, Inc.
The following names and numbers are current contractors who reside in or near the Coppell area and are familiar
with the Flex Base material from Big City Crushed Concrete, Inc.:
Camino Construction
1208 Metro Park
Lewisville, TX 75057
972436-2868
Coppell Construction Co.
P. O. Box 1139
Lewisville, TX 75067
972420-1260
Dyna-Mist Construction
2600 Ramblewood
Carrollton, TX 75006
972-417-0919
Kajima Construction
2055 Valwood Parkway
Farmers Branch, TX 75234
972-243-7387
Meuoplex Excavating
P.O. Box 1287
Lewisville, TX 75067
972-2214561
The Following people with the Texas Departmere Of Transportation can be contacted in reference to the use of
crushed concrete for Hexible Base Item 247. The Dallas District lab can provide data on Big City's Hexible Base
material, and they have approved use of our material on projects.:
Lawrence E. Kelley,, P.E.. Katherine Hargett, P.E.
District Laboratory Engineer Division Director
Dallas District TXDOT Materials & Test Division TXDOT
214-320-6 190 512-465-7615
Rebecca Davia Chien Fu
Recycling Coordinator Laboratory Engineer Test Division
TXDOT TXDOT
5 12416-2021 512-465-7334
An additional contact is Mike Sharp with Dallas County Road and Bridge, his district is currently
the one servicing Coppell, his office number is 972-247-1735.
TO: James M.Huffman, P.E. DATE: Augusl 21, 19.95
Dallas District
FROM: Katherine H. I-h.rgett, P.E. ORIGINATING OFFICE:
MAT/Soilg & Ag&n'cg.~tes
811BJECT: Crushed Concmt~ Flexible Base
It is my m~dcrsuuiding that numerous cities, counties mid other agencies kn tkc Dnj.las area were able
to u.~c cmshe~t concicB as a flexible base material by spe, ctf'ying Item 249, Type A under the 1982
Stan&'u-d Sp<icifieations. Although the dr,..Cmit/on of lte. m 247, Typ~ A flexible base was changed in
the 1993 Standard Specifications, it is not intended to preclude the u~e of crushed concrete
flexible base.material, To uso crushed concrete as a. flexible base, the department as well as city,
cotrely and other agency users can Specif~ Item 247, Type. A or Type D with a plan note- "Typed
material slmll bc'crUShedconcr~ie2"SpeCial Specification 247-008, wl~ch has been withiflrawn by
the Specifications Cormuitleo recently, a/10wcd th~ blending of ~.Tushed qtwa'ry stone e. nd it wa~ not
intendeel for the use ofcn~shed concrete.
We m the Mate|'i~ and Tests Division slaro your "good neighbor" spirit in helping the cities,
com~ties trod other agencies statewide in the uso of crushed concrete. flexible base. We kavc been
pro-active in encouraging the districts nnd others in the use of recycled products, such as crushed
concrete, for roadway construction m~d take advm~tnCe of the economical and environn~ental
benefits. ~te are working with Center for Tremsportation Rosere'oh to explore tke use of recycled
products &nd develop specification(s) for use of these identified materiMs as road ba.sc'. It is
anticipated tl:mt the specification(s) for tl~e use of recycled produels ~ road b~e will be available
next Spring, counting a 6-month project delay.
:1 n ~he intczim, I offer .the following to hclp educat~ tke Dallas area cities, counties and olher agencies ' !'
·
in tjae use of crushed concrete flexible base m~dcr item 247 of the 1993 Stm~dard Specifications: "
(1) dist~'jbutc~hii m,iifiomaum to the possible users idcntilic, d by your district, and
(2) clarification of Item 247 end ~ise ofcrmhed concrete flexible b~o by the Malerir. ds m~d Tc~ts
Division upon request by the user(s).
1 bxml tlmt this provides the i~forrn~Lion n~C:de, d at this time. I'tcase let me know. ~f yox. t need
addi. tiotml assist,,mce. . ......
,-. ~'.f ........ . .....
B. F. Tcmpletot~, I>.E. \\~\ ~B~o ~~
R.obcrt Wilson, P,E. ~:~'/' /' G"T' ~ .:
· rT
.~.. ~ 08,23/'95 TXDOT O I STR I CT ~ DALLAS. ~D2
10:55
~' .... MEMORANDUM
TO Messrs. Blain, Opperm~nn, Tcg.tmeyer, DATE: 8/22/1995
MacGregOr, MS. Sams and'All Area Engineers '~
FROM: James M. Huffman, P.E. Originating Office
Dalla.~ District Office
SUBJECT: Use of Crushed Coxicroto as
F]exible Base
we are of the opinion thut crushed concrete is a viable
alterna.~ive-to T-y{)e-A flexible base'ithat is crushed stone
from a naturally occurring single source. Also the use of
recycled material is in line with th=c Department's vision
of providing an'environm~nt~lly sensitive transportation system.
For these reasons, when you use Item '247 Flexible Base,
please speciEy T~e A or Type D with a gen~eral note -
"Type D matez'i~l will be crushed concrete"
For more background informatiou uz~ this please refer to
th.e attached memo from Katherine Hargett dated August 21, 1995,
cDaes t ions.
A t tachment s .
J~me~ M. Huffman, P.E.
_) D7'/J~ Dalla~ District Engineer
TERRA-MAR GEOTECHNICAL, EN~'IRONMENTAL, AND CONSTRUCTION MATERIALS TESTliNG
Dallas Fort Worth Houston
11050 Ables Lane, Dallas, Tx 75229 Phone.' 214-488-8800 Fax.' 214-488-8080
COARSE AGGREGATE ANALYSIS
CLIENT: Big City Crusher Concrete, Inc. REPORT DISTRIBUTION:
PROJECT: Miscellaneous Tests Big City Crusher Concrete, Inc. - Mason Brown
REPORT DATE: 11/14/96
TI~II REPORT NO.: DC96-073-19
Source: Plant Stockpile Date Tested: 11/14/96
Description: Crushed Concrete
Sample Wt., gm Technician: David Pierson
Specifications: NCTCOG Pipe Bedding Grade 4
11/2 0 0 0
i 630.3 5.5 0 - 5
1/2 6912.5 60.3 40 - 75
No 4 10677.6 93.2 90 - 100
No 8 10762.6" 93.9* 95 - 100
ASTM C 117
Material Finer that #200: 1.8 %
ASTM C 131
Los Angles Abrasion: 39.7 % loss
ASTM C 88
Soundness of Aggregate by use of
Magnesium Sulfate: 1.0% weighted loss
...... TERRA-MAR, Inc.
,...--
TERRA-MAR GEOTECHNICAL, ENVIRONMENTAL, AND CONSTRUCTION MATERIALS TESTING
Dallas Fort Worth Houston
11050 Ables Lane, Dallas, Tx 75229 Phone.' 214-488-8800 Fax.. 214-488-8080
COARSE AGGREGATE ANALYSIS
CLIENT: Big'Cit'9 Cru'~he/Cobcrete, In~. REPORT DISTRIBUTION:
PROJECT: Miscellaneous Tests Big City Crusher Concrete, Inc. - Mason Brown
REPORT DATE: 11/14/96
TMI REPORT NO.: DC96-073-19
Source: Plant Stockpile Date Tested: 11/14/96
Description: Crushed Concrete
Sample Wt., gm Technician: David Pierson
Specifications: ASTM C33, Size 57
11/2 0 100 100
1 630.3 94,5 95 - 100
1/2 6912.5 39.7 25 - 60
No 4 10677.6 6.8 0 - i0
No 8 10762.6 6.1' 0 - 5
ASTM C 117
Material Finer that #200: 1.8%
ASTM C 131
Los Angles Abrasion: 39.7 % loss
ASTM C 88
Soundness of Aggregate by use of
Magnesium Sulfate: 1.0% weighted loss
TERRA-MAR GEOTECHNICAL, ENVIRONMENTAL, AND CON_STRUCTION MATERIALS TESTING
Dallas Fort Worth Houston
11050 Ables Lane, Dallas, Tx 75229 Phone.'-214-488-8800 Fax.' 214-488-8080
SOU,'NDNESS OF AGGREGATE ASTM C 88
CLIENT: Big City Crusher Concrete, Inc. REPORT DISTRIBUTION:
PROJECT: Miscellaneous Tests Big City Crusher Concrete, Inc. - Mason Brown
REPORT DATE: 11/14/96
TI~II REPORT NO.: DC96-073-19
t Grading of Weight of Percent
Percent Percent Orig. Sample Fraction Weight Passing Weight
Sieve Size Retained Passing Percent Before, gm Retained Ater Test Percent Loss
11/2-13/4 39.2 60.8 39.2 1501.3 1485.7 1.0 0.4
3/4 ~ 1/2 60.3 39.7 21.1 669.4 662.5 1.0 0,2
1/2 - 3/8 8.5 8.5 329.9 323.0 2.1 0.2
3/8 - #4 93.2 6.8 24.4 2.1 0.5
#4 - #8 6.8 2.1 0.1
Magnesium Suitate Soundness Total Weighted Percent Loss: 1.0
*Weight retained on disignated sieve after five cycles
Solution Type: Freshly Prepm'ed Magnesium sulfate
Solution Specific Gravity: 1. 159