Concrete Bid #27-96-02

BID PROPOSAL: READY-MIXED CONCRETE
Bid #27-96-02
Submitted by: ______________________________________________________________________
Submitted to: CITY OF ADA, OKLAHOMA, Purchasing Department, 512 North Stockton, Ada, OK 74820
Before 9:00 a.m. CST, May 27, 2026
Bid Opening: May 27, 2026 @ 9:30 a.m. CST, at City of Ada Irving Community Center, 530 West 5th St.,
Ada, OK
This is a formal bid proposal submitted by the bidder to the City of Ada, Oklahoma and its agencies/authorities
herein called (BUYER), as a legal offer. When properly accepted by an authorized agent of the BUYER, it shall
constitute a firm and binding contract between these two parties in accordance to the conditions and specifications
stated and/or implied within the bid documents.
PURPOSE:
This bid is intended to provide FIXED prices for various mixes of Ready Mixed Concrete for a six-month period,
commencing upon July 1, 2026, and ending on December 31, 2026, or at which time the next 6 month contract is
awarded and approved by council.
Mix design and Prices are listed on the attached form. This form must be completed. The mix portion of this
form will be confidential and used by BUYER personnel for official purposes only the price portion will be
public record.
SPECIFICATIONS:
1. Contract Period: Six-month period, commencing upon July 1, 2026 and ending on December 31, 2026, or
at which time the next 6 month contract is awarded and approved by council.
2. Concrete will be ordered by quantity, class, slump, additives (if any) and required delivery time. The
supplier must advise the buyer if delivery can not be provided as requested.
3. Concrete will be ordered in quantities of 3 cubic yard or greater for delivery between 7 a.m. and 5 p.m.
Monday through Friday, except for emergencies or prior arrangements.
4. WHEN POSSIBLE, concrete will be ordered a minimum of 2 days prior to required delivery.
5. Late deliveries and/or incorrect orders (class, slump, quantity, etc.) are just cause to cancel or reject orders
and/or remove the supplier from the bidder's list for future services.
6. Concrete will be purchased from the supplier that offers the best products/services at best price. Include
any fees in the concrete price given on the price form (Does not include Below (3) yd3 Minimum Order
Fee). Concrete mix designs shall be proportioned to insure acceptable workability and meet strength,
durability, and uniformity requirements of ODOT specifications or standard practices.
7. Concrete not meeting the specifications will be subject to legal recourse and removal from the bidder's list.
8. The buyer reserves the right to purchase concrete from other suppliers when considered in the best interest
of the buyer if delivery can not be provided as requested; in the event the primary supplier(s) can not
provide the required product or service.
9. Complete the attached form. The mix design portions will be held in confidence. The dollar amounts will
be public record.
Bid#27-96-02
Page 2 of 10

PORTLAND CEMENT CONCRETE
These specifications cover materials, classifications, mix designs, proportioning, and testing of Portland cement
concrete. All concrete shall be air entrained unless otherwise shown on the plans.
The 2009 Edition of the Oklahoma Department of Transportation Standard Specifications for Highway Construction
govern, approved by the U.S. Department of Transportation, Federal Highway Administration, January 4, 2010. All
references to the Oklahoma Department of Transportation Commission pertaining to the 2009 Specifications and
Standards shall be interpreted to mean the City of Ada. All references to the "Engineer" in the Oklahoma
Department of Transportation specifications shall be revised to read the "City of Ada - Public Works Director", or
his designee. All references to the "State", "Department", "Highway Department" or "Transportation Commission"
shall be interpreted to be "the City of Ada - Public Works Division" or "City of Ada" as applicable. Within these
specifications the 2009 Edition of the Oklahoma Department of Transportation Standard Specifications for Highway
Construction shall hereinafter be referred to as the "2009 ODOT Specs", and the City of Ada shall hereinafter be
referred to as the "City".
Mix Design and Proportioning
A) Classes of Concrete
The following 2009 ODOT Specs classes of concrete shall be used by the City:
Table 1: Concrete Classes
Minimum Minimum
28-day Cement Maximum
Compressive Content Water/Cement
Strength lb/yd3 Air Content Ratio, Slump
Class(psi) (sacks/yd3) (%) (lb/lb) (inches)
Class AA 4000 564 (6.0) 6.5 +/- 1.5 0.25-0.44 2 +/- 1
Class A 3000 517 (5.5) 6 +/- 1.5 0.25-0.48 2 +/- 1
Class C 2400 395 (4.25) 6 +/- 1.5 0.25-0.62 3 +/- 1
*Class A
(HES) 3000
(3-day) 611 (6.5) 6 +/- 1.5 0.25-0.48 5 +/- 1
*Class A 3000
(5 +/- 1 Slump) 517 (5.5) 6 +/- 1.5 0.25-0.48 5 +/- 1
Note: Fly ash meeting the requirements of the 2009 ODOT Specs Section 702, "Supplementary
Cementitious Materials" may be substituted for up to 20% of the required cement. Make cement
substitutions on a one-to-one basis by weight [mass].
1) Use the weight of each material to calculate the water to cement ratio (W/C) using the following equation:
W/C=Water/(Cement + Fly Ash)
Determine the water use by adding the water measured into the batch, the water used in admixtures, and the
free water on wet aggregate and subtracting the water absorbed by dry aggregate.
2) Ensure the slump reflects a workability appropriate for the application. If using a high-range water-
reducing admixture, limit the slump to a maximum of 9 in [230 mm]. A specified concrete slump to be
delivered to the site shall be ordered by a city representative that is within the range in Table 1 for the class
ordered. A minimal amount of water may be added once on site to achieve the needed slump for the work
to be performed. Water shall not be added in large amounts to achieve the slump ordered.
3) Compressive strength shall be based on the average of the results of three test cylinders. Table 2 lists the
proper uses for each class of concrete:
Bid#27-96-02
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Table 2: Designated Concrete Uses
Concrete Class (psi) Designated Uses
Class AA 4000 Concrete in superstructures
Pavements and substructures (pier caps, columns, abutments, retaining
Class A 3000
walls, and reinforced concrete not requiring Class AA concrete)
Class C 2400 Soil erosion control structures
*Class A (HES) 3000
Pavements
(3-day)
*Class A 3000
Pavements
(5 +/- 1 Slump)
B) Proportioning
Design and produce concrete mixtures in accordance with Table 1, "Concrete Classes". The mix design shall
be based on the absolute volume for the class of concrete specified and the consistency suitable for satisfactory
placement of the concrete. Proportioning of the coarse and fine aggregate shall comply with ACI 211.1. Fine
aggregate and the mixing water shall be kept to a minimum to ensure concrete of the required workability for
placement.
High early strength concrete shall be 3000 psi concrete that meets the minimum strength requirement within 72
hours of placement.
The following information is required for each mix design:
1) City identification included with each mix design designation
2) Name and address of producer
3) Mix design designation
4) Aggregate sources, gradation, moisture content, and saturated surface dry batch mass
5) Water source and test reports required by 2009 ODOT Specs Subsection 701.4, "Water"
6) Fine aggregate fineness modulus
7) Cement type and sources
8) Fly ash source, if used
9) Type of admixtures and sources
10) High Range Water Reducer, if used in accordance with 2009 ODOT Specs Subsection 701.03.C, "High
Range Water Reducer (HRWR) Concrete Mixture
11) Material proportions
12) Unit weight
13) Air content
14) Slump
15) Water to cement ratio
16) Compressive strengths at 7 days and 28 days
17) Compressive strengths at 72 hr for high early strength concrete
18) Flexural strength at 28 days or 56 days for Class A used for concrete paving
Submit new mix designs if:
* The City rejects the mix design
* Material sources change
* The mix design produces unacceptable workability or production test results
With the extended bids that the City uses, source substitutions are allowed, but the substitutions must be
submitted to the City for approval before using a new source.
C) Tests and Samples
Bid#27-96-02
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For concrete sampling and testing, use the procedures in Table 3.
Table 3: Concrete Sampling and Testing
Property Tested AASHTO Test
Procedure
Sampling(a) T 141
Slump T 119
Air T 152 or T 196
Curing of Specimens(b) T 23
Strength:
T 22
Compressive(c)
Flexural(d) T 97
(a) Sample pumped concrete after it is
discharged from the pump.
(b) Maintain the initial curing temperature at
40 degreesF [4 degreesC] or greater. The City will not
require a recording thermometer.
Maintain the final cure from 40 degreesF to 85 degreesF
[4 degreesC to 29 degreesC] until tested.
(c) Base compressive strengths on the
average of three test cylinders.
(d) Base flexural strengths on the average of
two test beams.
D) Mix Identification - Reference authorized mix identifications on batch tickets, test results, reports, and
correspondence.
Portland Cement
Provide cement that meets the requirements of the 2009 ODOT Specs Subsection 701.02, "Portland Cement".
Admixtures
Only admixtures approved in the mix design and included in the bid price shall be used in any concrete. No
admixtures shall be used to replace cement within the mix design. In using admixtures the producer shall:
* Accurately measure admixtures into each batch,
* Dispense admixtures in liquid form. Provide dispensers large enough to measure the quantity for each
batch. Unless liquid admixtures are added to pre-measured water, arrange the discharge to uniformly flow
into the water stream.
* Store admixtures to prevent freezing. Agitate admixtures to prevent solids from separating or settling. Do
not use air agitation.
* If more than one liquid admixture, use separate equipment to provide and dispense each admixture. Ensure
that admixtures are compatible when used in combination.
* Air entraining admixtures shall be added during batching only.
Bid#27-96-02
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Water
All water used in batching concrete must be clean and free of oil, salt, acid, alkali, organic matter, or other
substances injurious to the finished product. If the water source is other than a municipal source, the water must be
tested in accordance with AASHTO T 26.
Fine Aggregate
A) Materials Covered
These specifications cover fine aggregate quality and size for PCC pavements or bases, highway bridges, and
incidental structures.
B) General Requirements
Provide fine aggregate that consist of a single-source natural sand in accordance with AASHTO M6, Class A,
except as modified by the following:
* Mix the two materials under controlled conditions and stockpile as a finished aggregate.
Alternatively, the two materials may be combined from separate stockpiles during batching
operations at a hydraulic cement concrete plant.
* Ensure the combined fine aggregate meets the gradation requirements of the 2009 ODOT Specs
Subsection 701.05.C, "Gradation."
* If a manufactured sand is used in combination with natural sand, ensure the fine aggregate blend
has an acid insoluble residue of at least 60 percent by weight when tested in accordance with OHD
L-25.
* Obtain crushed fine aggregate (manufactured sand) from a coarse aggregate source on the ODOT
Materials Division's "Approved Products List" for use in hydraulic cement concrete.
C) Gradation
Provide fine aggregate with a fineness modulus between 2.3 and 3.1, that is well graded from coarse to fine, and
when tested in accordance with AASHTO T 27 and AASHTO T 11 meets the requirements of Table 3.
Table 3: Fine Aggregate Gradation
Sieve Size Percent Passing
3/8 inch [9.5 mm] 100
No. 4 [4.75 mm] 95-100
No. 8 [2.36 mm] 80-100
No. 16 [1.18 mm] 50-85
No. 30 [600 m] 25-60
No. 50 [300 m] 5-30
No. 100 [150 m] 0-10
No. 200 [75 m] 0.0-3.0
The gradation requirements specified in Table 3 represent the extreme limits of suitability. Ensure the gradation
from one source does not have large changes in percentages of gradation. Use the average fineness modulus to
determine the uniformity of the fine aggregate. The average fineness modulus is the average of the last 10 tests
by the ODOT Division III Resident Engineer and maintained by his office. The City will not accept fine
aggregate represented by a test result with a fineness modulus that deviates more than 0.20 from the average.
Determine the aggregate fineness modulus by adding the total percentage of sample material that is coarser than
each of the following sieve sizes and dividing the by 100: No. 100 [150 m], No. 50 [300 m], No. 30 [600 m],
No. 16 [1.18 mm], No. 8 [2.36 mm], No. 4 [75 mm], and 3/ inch [9.5 mm].
8
Bid#27-96-02
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Coarse Aggregate
These specifications cover coarse aggregate quality and size for use in PCC pavements or bases, highway bridges,
and incidental structures.
Provide each source of coarse aggregate in accordance with AASTO M 80, Class A, except as modified by the
following:
* Ensure coarse aggregate produces Class A concrete with a durability factor of at least 50.
Determine the durability factor after 350 cycles of alternate freezing and thawing in accordance
with AASHTO T 161, Procedure A.
* Limit the Los Angeles Abrasion percent wear to a maximum of 40 percent after 500 revolutions
when tested in accordance with AASTO T 96.
* The City will not apply the sodium sulfate soundness requirement.
* Ensure at least 70 percent of the coarse aggregate retained on the No. 4 [4.75 mm] sieve is crushed
stone or mechanically crushed gravel with at least two fractured faces.
* Provide coarse aggregate graded in accordance with Table 4.
Table 4: Coarse Aggregate Gradation
AGGREGATE SIZE
57 67
Sieve Size Percent Passing
1 12 in [37.5 mm] 100 -
1 in [25 mm] 95-100 100
34 in [19 mm] - 90-100
12 in [12.5 mm] 25-60 -
3/ in [9.5 mm] - 20-55
8
No. 4 [4.75 mm] 0-10 0-10
No. 8 [2.36 mm] 0-5 0-5
No. 16 [1.18 mm] - -
No. 200 [75 m] 0-2.0 0-2.0
More than one approved source of coarse aggregate may be used in a concrete mix design. Provide the specified
sizes of coarse aggregate for the following types of concrete:
* No. 57 for Class A concrete
* No. 57 or No. 67 for Class C concrete
* No. 57 or No. 67 for Class AA concrete
Bid#27-96-02
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Concrete Bid Form
Bid#27-96-02
Enter the mix design and unit price in the sections below. The mix design must comply with the above
specifications. All parts must be completed for the bid to be considered complete and acceptable for
consideration. The unit prices provided below must include all fees (Does not include Below (3) yd3
Minimum Order Fee), charges, etc. (i.e. environmental fee) for the batching and delivery of
material to the job site. The additives below will be all that is approved for use and shall be bid as a
single unit price.
ODOT Class AA 4000 psi ODOT Class A 3000 psi
Cement (lb) Cement (lb)
Coarse Aggregate (lb) Coarse Aggregate (lb)
Fine Aggregate (lb) Fine Aggregate (lb)
Water (gal) Water (gal)
Bid ($/yd3) Bid ($/yd3)
ODOT Class C 2400 psi *ODOT Class A (5 +/- 1)3000 psi
Cement (lb) Cement (lb)
Coarse Aggregate (lb) Coarse Aggregate (lb)
Fine Aggregate (lb) Fine Aggregate (lb)
Water (gal) Water (gal)
Bid $/yd3 Bid ($/yd3)
*ODOT Class A (HES) 3000 psi
Cement (lb)
Coarse Aggregate (lb)
Fine Aggregate (lb)
Water (gal)
Bid $/yd3
ODOT CLSM (Flowable Fill)
Cement (lb)
Coarse Aggregate (lb)
Fine Aggregate (lb)
Water (gal)
Bid $/yd3
Bid#27-96-02
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Bid Form Continued
Plasticizer ($/yd3) _________ Set Retarder ($/yd3) _________ Hot Water ($/yd3) ________
Non-Chloride Excellerator - N.C.A. 1% ($/yd3) _________ N.C.A. 2% ($/yd3) _________
Below (3) yd3 Minimum Order Fee ($/Load) _________ Ice (90 degreesF Specification) ($/yd3) _________
Maximum Size Stone: _________ Specific Gravity of Fine Aggregate (SSD) _________
Fineness Modulus: _________ Specific Gravity of Coarse Aggregate (SSD) _________
of Sand
Material Sources
Please provide the material sources for each item below:
Cement ________________________ Air Entrainment _________________________
Fine Aggregate ________________________ Coarse Aggregate _________________________
Admixture ________________________ Admixture _________________________
If water is not from a municipal source, provide the source __________________________. Also, submit
water quality results, AASHTO T 26, to the city engineer's office.
Firm: ___________________________________
Address: ______________________ __________
City/St/Zip: ______________________________
Phone: __________________________________
Fax: ____________________________________
E-Mail: __________________________________
Name: ___________________________________
Signature: ________________________________
Title: ____________________________________
Date: ____________________________________
Bid#27-96-02
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NON-COLLUSION AFFIDAVIT
The undersigned, of lawful age, being first duly sworn, on oath, says that (s) he is the bidder or
bidder's authorized agent, and is authorized to submit this bid (offer). Affidavit further states that
the bidder, or bidder's agent, has not been a party to any collusion among bidders in the restraint of
freedom of competition by agreement to bid at a fixed price or to refrain from bidding; or price in
the prospective contract; or in any discussion between bidder and/or any BUYER officials
concerning exchange of money or other things of value for special consideration on the letting of
this bid.
BUSINESS RELATIONSHIP AFFIDAVIT
If none of the business relationships mentioned exist, affidavit should so state "NONE".
The undersigned, of lawful age, being first duly sworn, on oath says that (s) he is the bidder or
bidders authorized agent to submit this bid. Affidavit further states that the nature if any
partnership, joint venture, or other business relationship presently in effect or which existed within
one (1) year prior to the date of this bid with any BUYER officials or employee is as follows:
_______________________________________________________________________________
Affidavit further states that any such business relationship presently in effect or which existed one
(1) year prior to this bid between the bidder or officers or employees of the BUYER or other party
to this bid is as follows.
_______________________________________________________________________________
Affidavit further states that the names of all persons having any such business relationship and the
positions they hold with their respective companies or firms are as follows:
_______________________________________________________________________________
Firm: _________________________ Name: ___________________________________
Address: ______________________ Signature: ________________________________
City/St/Zip: ____________________Title: ____________________________________
Phone: ________________________Date: ____________________________________
NOTARY
Subscribed and sworn before me this _______________ day of _____________________, 20__
My notary expires ___________________. Notary: __________________________________.
Bid#27-96-02
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