100389_PRECAST_CONCRETE_PANEL_SOUND_WALL_SPECS.pdf

No. 2021.121-ITB PRECAST CONCRETE PANEL SOUND WALLS FOR SW ROY ROGERS RD (BORCHERS DR TO CHICKEN CRK) PROJECT 1

PRECAST CONCRETE PANEL SOUND WALLS

FOR

SW ROY ROGERS RD (BORCHERS DR TO CHICKEN CRK) PROJECT

NO. 2021.121-ITB

SPECIFICATIONS FOR CONSTRUCTION

Section 00150 - Control of Work

00150.00 Authority of the Engineer - The Engineer has full authority over the Work and its suspension. (See Section 00180.) The Contractor shall perform all Work to the complete satisfaction of the Engineer. The Engineer's determination shall be final on all matters, including, but not limited to, the following:

• Quality and acceptability of Materials and workmanship

• Measurement of unit price Work

• Timely and proper prosecution of the Work

• Interpretation of Contract Documents

• Payments due under the Contract

The Engineer's decision is final and, except as provided in 00180.80 for adjustments of Contract Time and Section 00199 for claims for additional compensation, may be challenged only through litigation. Work performed under the Contract will not be considered complete until it has passed Final Inspection by the Engineer and has been accepted in writing by the Agency.

00150.01 Project Manager's Authority and Duties - The Engineer may designate a Project Manager as its representative on the Project with authority to enforce the provisions of the Contract. When the Engineer has designated a Project Manager, the Contractor should direct all requests for clarification or interpretation of the Contract, in writing, to the Project Manager. The Project Manager will respond within a reasonable time. Contract clarification or interpretation obtained from persons other than the Project Manager will not be binding on the Agency. The Project Manager shall have the authority to appoint Inspectors and other personnel as required to assist in the administration of the Contract.

00150.02 Inspector's Authority and Duties - To the extent delegated under 00150.01, Inspectors are authorized to represent the Engineer and Project Manager to perform the following:

• Inspect Work performed and Materials furnished, including, without limitation, the preparation, fabrication, or manufacture of Materials to be used;

• Orally reject defective Materials and to confirm such rejection in writing;

• By oral order, temporarily suspend the Work for improper prosecution pending the Engineer's decision; and

• Exercise additional delegated authority.

Inspectors are not authorized to:

• Accept Work or Materials.

• Alter or waive provisions of the Contract.

• Give instructions or advice inconsistent with the Contract Documents.

00150.20 Inspection:

(a) Inspection by the Engineer - The Engineer may test Materials furnished and inspect Work performed by the Contractor to ensure Contract compliance.

If the Contractor performs Work without the Engineer's inspection or uses Materials that the Engineer has not approved, the Engineer may order affected portions of the Work removed at the Contractor's expense. The foregoing sentence shall not apply if the Engineer fails to inspect the Work within a specific period of time required in the Contract or, in the absence of a specific period of time, within a reasonable period of time after receiving the Contractor's timely written request for inspection or testing.

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(b) Inspection by Third Parties - Where third parties have the right to inspect the Work, the Contractor shall coordinate with the Engineer and shall provide safe inspection access.

(c) Contractor's Duty to Make Corrections - The Contractor shall perform all Work according to the Contract Documents. The Contractor shall correct Work that does not comply with the Contract Documents at its own expense. Inspection of the Work by the Engineer does not relieve the Contractor of responsibility for improper prosecution of the Work.

00150.25 Acceptability of Materials and Work - The Contractor shall furnish Materials and shall perform Work in Close Conformance to the Contract Documents. If the Engineer determines that the Materials furnished or the Work performed are not in Close Conformance with the Contract Documents, the Engineer may:

• Reject the Materials or Work and order the Contractor, at the Contractor's expense, to remove, replace, or otherwise correct any non-conformity; or

• Accept the Materials or Work as suitable for the intended purpose, adjust the amount paid for applicable Pay Items to account for diminished cost to the Contractor or diminished value to the Agency, document the adjustment, and provide written documentation to the Contractor regarding the basis of the adjustment.

The Engineer's decisions concerning acceptability of Materials or Work will be final.

00150.35 Plans and Working Drawings:

(a) Plans - The Agency-prepared Plans will show details of lines, grades, Cross Sections, and Typical Section of the Roadway, and locations and design details of Structures.

(b) Working Drawings - The Contractor shall supplement the Agency-prepared Plans with stamped Working Drawings, unstamped Working Drawings that show all information necessary to complete the Work. The applicable Section or Subsection of the Standard Specifications will indicate the supplemental information required and whether the drawings are to be stamped or unstamped.

Stamped Working Drawings are Working Drawings, calculations, and other data which are prepared by or under the direction of a Professional Engineer licensed in the State of Oregon, and which bear the engineer's signature, seal, and expiration date.

(c) Number, Size, and Format of Working Drawings – The Contractor shall submit electronic Working Drawings.

(d) Processing Working Drawings - Stamped Working Drawings will be designated as "accepted", "accepted with comments", or "returned for correction" by the Engineer. If stamped Working Drawings are returned for correction by the Engineer, the Contractor shall address all comments and resubmit the stamped Working Drawings.

The Contractor shall not fabricate or construct any structural components until the stamped or unstamped Working Drawings are returned by the Engineer with a written designation of "accepted", "accepted with comments", "approved", or "approved as noted", as applicable for the Working Drawings.

The Engineer's processing of the Working Drawings does not amend any contractual obligations of the parties.

The Engineer will process and return Working Drawings within21 Calendar Days after receipt by the Engineer. If the Engineer fails to return such drawings within this period of time, the Engineer will consider granting a Contract Time extension. If the Contractor is required to resubmit Working Drawings to the Engineer, the Engineer will process and return the Working Drawings within 21 Calendar Days after receipt of the resubmitted Working Drawings by the Engineer.

00150.97 Responsibility for Materials and Workmanship:

(a) The Contractor shall perform the Work according to the terms, conditions, and requirements of the Contract.

(b) Whether before or after the Agency's acceptance of the Work, the Contractor shall be responsible for:

• Correcting or repairing any defects in, or damage to, the Work that results from the use of

PRECAST CONCRETE PANEL SOUND WALLS FOR SW ROY ROGERS RD (BORCHERS DR TO CHICKEN CRK) PROJECT 3 improper or defective materials or workmanship; or

• Replacing, in its entirety, the Work affected by the use of improper or defective materials or workmanship to the extent provided by law;

(c) Full or partial termination of the Contract shall not relieve the Contractor of responsibility for completed or performed Work, or relieve the Contractor's Surety of the obligation for any just claims arising from the completed or performed Work.

Section 00165 - Quality of Materials

Description

00165.00 General - The Contractor shall incorporate into the Work only Materials conforming to the Specifications and approved by the Engineer. The Contractor shall incorporate into the Work only manufactured products made of new materials unless otherwise specified in the Contract. The Agency may require additional testing or retesting to determine whether the Materials or manufactured products meet Specifications.

Materials or manufactured products not meeting the Specifications at the time they are to be used are unacceptable and must be removed immediately from the Project Site, unless otherwise directed by the Engineer.

00165.01 Rejected Materials - The Engineer may reject any Materials that appear to be defective (see 00150.25) or that contain asbestos. The Contractor shall not incorporate any rejected Materials into the Work. Rejected Materials whose defects have been corrected may not be incorporated into the Work until the Engineer has approved their use.

The Engineer may order the removal and replacement by the Contractor, at the Contractor's expense, of any defective Materials. (See also 00150.20.)

00165.02 Materials Conformance and Quality Compliance Documents - For purposes of this Section, "Materials Conformance Documents" means the Contractor's quality-control, the Agency's verification, and the independent assurance test results, and the identity of the testing facility, as specified in the ODOT Manual of Field Test Procedures (MFTP), unless otherwise specified in the Contract.

For purposes of this Section, "Quality Compliance Documents" means those documents specified in ODOT's Nonfield- Tested Materials Acceptance Guide, unless otherwise specified in the Contract.

00165.03 Testing by Agency - When testing Materials, the Agency will conduct the tests in its central laboratory, field laboratories, or other laboratories designated by the Engineer, even though certain AASHTO, ASTM, and other materials specifications may require testing at the place of manufacture. Results of the Agency's tests will be made available to the Contractor.

00165.04 Costs of Testing - When the Contract requires that the Agency perform the testing, the testing will be at the Agency's expense. The Agency will pay the cost of Contractor-requested source review tests on unprocessed Aggregates from no more than two sources for each Project, and on no more than three unprocessed samples from each source. Additional source-review tests performed at the Contractor's request shall be at the Contractor's expense.

Unless otherwise provided in the Contract, all testing required to be performed by the Contractor will be at the Contractor's expense.

Provisions and Requirements

00165.10 Materials Acceptance Guides - Unless otherwise specified elsewhere in the Contract, Materials will be accepted according to the following guides:

(a) Field-Tested Materials - Field-tested Materials will be accepted according to the MFTP. The MFTP is published once per year and is available from the ODOT Construction Section; 800 Airport Road SE; Salem, OR 97301-4798;

phone 503-986-3000. The MFTP is also available on the ODOT Construction Section website. The most current version of the MFTP on the date of Advertisement is the version in effect for the Project.

(b) Nonfield-Tested Materials - Nonfield-tested Materials will be accepted according to the ODOT Nonfield Tested Materials Acceptance Guide (NTMAG), unless otherwise specified in the Contract. The NTMAG is available on the

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ODOT Construction Section website. The most current version of the NTMAG on the date of Advertisement is the version in effect for the Project.

00165.20 Materials Specifications and Test Method References - References to materials specifications and test methods of ODOT, WAQTC, AASHTO, ASTM, other governmental agencies, or other recognized organizations mean those officially adopted and in current use by the agency or organization on the date of Advertisement.

If there are conflicting references, or if no reference is made to materials specifications, sampling and testing frequencies, or test method, the Engineer will resolve any discrepancies between these documents.

00165.30 Field-Tested Materials:

(a) Contractor's Duties - The Contractor shall:

• Furnish Materials of the quality specified in the Contract;

• Provide and administer a quality control program as described in the Quality Assurance

Program portion of the MFTP. Upon request, the Contractor shall provide to the Engineer the names, telephone numbers, and copies of certifications for all personnel performing field testing; and

• Perform other testing as required by the Contract.

(b) Types of Tests - The types of tests and testing methods generally required by ODOT are described in the MFTP.

(c) Acceptance of Field-Tested Materials - The Contractor's test results for field-tested Materials will be verified by the Agency according to the Quality Assurance program outlined in the MFTP. If the Agency's QA test results verify the Contractor's results, the Materials will be analyzed for acceptance by methods determined by the Engineer.

If the Agency's verification test results do not verify the Contractor's test results, the Agency may require additional testing to determine whether the Materials meet Specifications. The Contractor shall perform additional testing or provide samples to the Agency for testing as directed. If the Materials do not meet Specifications, the Contractor shall reimburse the Agency for the cost of the additional testing, which may be deducted from monies due or to become due the Contractor under the Contract. Incorporated Materials that do not meet Specifications will be evaluated according to 00165.01 and 00150.25. If the Materials meet Specifications, the Agency will pay the cost for the additional testing.

00165.35 Nonfield-Tested Materials - The Contractor shall furnish Materials meeting Specifications, along with all Materials Conformance and Quality Compliance Documents.

(a) Test Results Certificate - The certificate shall:

• Be from the manufacturer, verifying that the Material furnished has been sampled and tested and the test results meet the Specifications.

• Include, or be accompanied by, a copy of the specified test results (ODOT, AASHTO, ASTM, UL or other).

• Identify the testing agency and the representative responsible for the test results.

• Permit positive determination that Material delivered to the Project is the same Material covered by the test results.

• Be delivered to the Engineer with the shipment of the material.

(b) Quality Compliance Certificate - The certificate shall be from the manufacturer and shall:

• Verify that the Material meets the Specifications, and identify by number the specified test methods used, (ODOT, AASHTO, ASTM, UL, or other)

• Permit positive determination that Material delivered to the Project is the same Material covered by the certificate,

• Be delivered to the Engineer with the shipment of the Material, or be an identification plate or mark, decal, sticker, label, or tag attached to the container or Material,

(c) Equipment List and Drawings - These consist of lists of proposed Equipment and Materials, such as:

• Shop drawings

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• Material lists

• Equipment lists

• Catalog description sheets

• Manufacturer's brochures

Submit these lists to the Engineer for review of conformance with the Specifications.

00165.70 Use of Materials without Acceptable Materials Conformance Documents:

(a) General - The Contractor shall not incorporate Materials into the Project prior to submittal of Materials Conformance Documents acceptable to the Engineer. The Engineer may waive this requirement temporarily if Materials are necessary for immediate traffic safety.

00165.75 Storage and Handling of Materials - The Contractor shall store and handle Materials so as to preserve their quality and fitness for incorporation into the Work.

Stored Materials:

• Shall be readily accessible for inspection;

• May be stored on approved parts of the Right-of-Way; and

• May be stored on private property if written permission of the owner or lessor is obtained.

Measurement

00165.80 Measurement - No separate measurement will be made of Work performed under this Section.

Payment

00165.90 Incidental Basis - No separate or additional payment will be made for sampling, testing, certification, or other associated Work performed under this Section, whether performed by the Contractor, manufacturer, producer or Supplier. No payment will be made for providing quality control personnel.

Section 00530 - Steel Reinforcement for Concrete

Description

00530.00 Scope - This Work consists of furnishing and placing steel reinforcement of the grade, type and size shown or specified.

Materials

00530.10 Materials - Furnish Materials meeting the following requirements. Refer to the 2021 Oregon Standard Specifications for Construction. An online version is available using the link below.

(https://www.oregon.gov/odot/Business/Specs/2021_STANDARD_SPECIFICATIONS.pdf)

Deformed Bar Reinforcement ................................................................02510.10 Dowels .................................................................................................. 02510.50 Epoxy Coated Reinforcement ............................................................... 02510.11 Headed Bar Reinforcement ....................................................................02510.25 Galvanized Coating ................................................................................02510.30 Mechanical Splices.................................................................................02510.20 Stainless Steel Chairs and Supports ..................................................... 02513.30 Stainless Steel Concrete Inserts ........................................................... 02513.35 Stainless Steel Dowels .......................................................................... 02513.50 Stainless Steel Mechanical Splices ....................................................... 02513.20 Stainless Steel Reinforcement Bar ........................................................ 02513.10 Stainless Steel Tie Wire ........................................................................ 02513.60 Welded Wire Fabric ............................................................................... 02510.40 Wire Reinforcement............................................................................... 02510.60 https://www.oregon.gov/odot/Business/Specs/2021_STANDARD_SPECIFICATIONS.pdf

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00530.11 Order Lists and Bending Diagrams - Before ordering material, submit all order lists and unstamped bending diagrams according to 00150.35 for approval. Do not order material until such lists and bending diagrams have been approved. The review of order lists and bending diagrams by the Engineer will not relieve the Contractor of responsibility for the correctness of such lists and diagrams. Revise lists and diagrams as required to make them comply with the design drawings at no additional cost to the Agency.

Order lists and bending diagrams for reinforcement affected by stressing system in prestressing beams or post-tensioning systems such as anchorage design and duct placement will not be reviewed before the stressing system is reviewed.

00530.12 Fabrication - Cold bend reinforcement bars to the shapes shown. Make bends, tag, mark and ship reinforcement bars according to the current edition of the CRSI Manual of Standard Practice.

00530.13 Miscellaneous Metal - Minor metal parts such as drains, bolts, concrete anchors, spacer blocks, expansion and bearing devices, access hole covers and frames, anchor bolts, inserts and similar miscellaneous metal, unless otherwise provided, will be classified as reinforcement. Pipe attached to or used in conjunction with bridge deck drains or catch basins will be classified as reinforcement.

00530.14 Concrete Inserts - Furnish hot-dip galvanized expanded coil concrete inserts with closed-back ferrule threaded to receive UNC threaded bolts or rods of the size shown. Provide concrete inserts with the following minimum lengths and capacities:

Bolt or Rod Minimum insert Minimum Safe Working Load Diameter (Inches) Length (Inches) in Shear or Tension (Pounds) 3/4 4 1/2 4,000 1 5 1/2 6,000 1 1/4 7 1/2 10,000 1 1/2 9 1/2 16,000

Where stainless steel inserts are specified, furnish inserts meeting the requirements of 02513.35.

Labor

00530.30 Mechanical Splice Installers - Provide qualified mechanical splice installers to construct mechanical splices.

To qualify an installer, provide the Engineer with three completed mechanical splice samples of each type and size to be installed on the Project for each mechanical splice installer, at no additional cost to the Agency. Prepare the splice samples as follows:

• Make splice samples in the presence of the Engineer using the same materials, Equipment, and procedures that will be used on the Project.

• Construct each splice sample according to the manufacturer's recommendations.

• Construct each splice sample with two equal lengths of straight reinforcing bar so the total length of the assembled splice sample is at least 96 inches.

• Mark each splice sample with the heat treatment lot number.

Provide splice samples that meet the requirements of 02510.20. For stainless steel reinforcement, provide splice samples that meet the requirements of 02513.20. Do not begin mechanical splice installation until the Engineer confirms, in writing, the qualification of each mechanical splice installer. The Engineer may suspend mechanical splice installation if the Contractor substitutes unapproved personnel during construction.

00530.35 Headed Bar Reinforcement Installers - Provide qualified headed bar reinforcement installers to construct headed bar reinforcement. To qualify an installer, provide the Engineer with three complete headed bar reinforcement samples of each type and size to be installed on the Project for each installer, at no additional cost to the Agency. Prepare the headed bar reinforcement samples as follows:

• Make samples in the presence of the Engineer using the same Materials, Equipment, and procedures that will be used on the Project.

• Construct each sample according to the manufacturer's recommendations.

• Construct each sample so the total length of the assembly is at least 48 inches.

• Mark each sample with the heat treatment lot number.

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Provide headed bar reinforcement samples that meet the requirements of 02510.25. Do not begin headed bar reinforcement installation until the Engineer confirms, in writing, the qualification of each headed bar reinforcement installer. The Engineer may suspend headed bar reinforcement installation if the Contractor substitutes unapproved personnel during construction.

Construction

00530.40 Protection of Material - Store reinforcement above the surface of the ground on dunnage. Protect reinforcement from damage at all times. Ensure reinforcement is free of dirt, detrimental rust or scale, paint, oil and other foreign substances when placed in the Work.

In addition to the requirements above, store epoxy coated bars with supports close enough to prevent sagging in the bundles. Provide protective padding when bundles are stacked or when supported on metal. Store bars as close as practicable to where they will be placed in the Structure. Cover bars with an opaque material during storage to protect them from exposure to sunlight and saline mist. Move bars to or from storage according to 02510.11(b) to minimize damage to the coating. Do not allow the total exposure time from bar delivery to concrete placement, while in storage or in place, to exceed 2 months.

00530.41 Placing and Fastening - Place all reinforcement within the tolerances recommended in the CRSI Manual of Standard Practice unless otherwise specified. Hold reinforcement firmly during the placing and setting of concrete.

(a) Fabric - If fabric reinforcement is shipped in rolls, straighten it into flat sheets before placing.

(b) Ties and Supports - Keep reinforcement properly positioned during placement of concrete according to the following:

• In top mats of footings and deck slabs, tie bars at all intersections except where bar spacing is less than 6 inches, tie bars at alternate intersections.

• Tie all other bars at all intersections except where bar spacing is less than 1 foot in each direction, tie bars at alternate intersections.

• Use precast concrete bar supports with approved shape and dimensions, and equal or greater compressive strength as the concrete to be placed.

• When precast concrete bar supports are used, provide Wired Blocks. Provide tie wires meeting the requirements of 02510.60. Combination Blocks may be used in horizontal applications. Provide tie wires meeting the requirements of 02513.60 for blocks supporting stainless steel reinforcement.

• Where at least one of the bars to be tied or supported is epoxy coated, provide tie wires that are either plastic or epoxy coated.

• For bridge decks, support the bottom mat with precast concrete Wired Blocks or Combination Blocks. The wire ties need not be coated. Plastic bar supports are not allowed.

• For bridge decks, support the top mat of reinforcing steel from the bottom mat with reinforcing bar supports according to Chapter 3 of the CRSI Manual of Standard Practice (SBU, BBU or CHCU) at 24 inch maximum centers. Plastic bar supports are not allowed.

• When stainless steel rebar is specified, use stainless steel wire bar supports conforming to the requirements of ASTM A493, Type 430, stainless steel rebar Standees, or Class 1A epoxy coated wire bar supports.

• Use plastic tipped feet or Class 2, Type A stainless steel tips if the feet of the support will be on an exposed surface.

• Turn up the legs of steel wire bar supports a minimum of 1/8 inch.

• Separate layers of bars with precast concrete bar supports or by other approved bar support devices.

• Do not use pebbles, broken stone or brick, metal pipe or wooden blocks as bar supports.

• Tie stainless steel reinforcement only with stainless steel tie wire meeting the requirements of 02513.60.

• Support stainless steel reinforcement with stainless steel metal chairs and continuous supports meeting the requirements of 02513.30.

• Do not allow direct contact between stainless steel reinforcement and steel reinforcement. When stainless steel reinforcing or dowels is located near steel reinforcing, use nylon or polyethylene spacers to maintain a minimum 1 inch clearance between the two metals and bind them with nylon cable ties. Where insufficient space exists to maintain this minimum, either bar may be sleeved with a continuous polyethylene or nylon

PRECAST CONCRETE PANEL SOUND WALLS FOR SW ROY ROGERS RD (BORCHERS DR TO CHICKEN CRK) PROJECT 8 tube extending at least 1 inch in each direction past the point of closest contact between the two dissimilar bars.

(c) Clearances:

• Provide the same surface clearance for ties and splices that is shown or specified for the reinforcement.

• Maintain clearance distance from the forms with stays, precast concrete blocks, ties, hangers, or other approved supports.

• Remove all precast member lifting devices prior to placing concrete deck reinforcement.

• Ensure bridge deck clearances meet the requirements of 00540.48(g).

(d) Approval - After placing reinforcement in any member have it inspected and approved before placing concrete.

Concrete placed in violation of this provision may be rejected and removal required.

00530.42 Splicing:

(a) General - Furnish full length reinforcing bars the specific length shown or the calculated length for those designated "full length".

If specific locations are designated for splices, make splices only at those locations, or use full length bars.

In the absence of other directions, including bars designated "continuous," furnish reinforcing bars to provide the minimum practical number of bars.

Where splicing is allowed, unless shown otherwise:

• Splice No. 11 bars and smaller by lapping, or with an approved mechanical splice.

• Splice No. 14 bars and larger with an approved mechanical butt splice.

(b) Lapped Splices - In lapped splices, place the bars in contact and fasten together according to 00530.41 with at least three ties per splice.

Where coated reinforcement is spliced to uncoated reinforcement, provide the required splice lap for the coated reinforcement unless shown otherwise.

(c) Mechanical Splices:

(1) General - Construct mechanical splices according to 02510.20 and the manufacturer's recommended procedures.

Use devices that join bars end-to-end if a butt splice is specified; otherwise bars may be lapped or joined end-to-end.

All requirements for mechanical splices apply to mechanical butt splices.

Ensure mechanical butt-spliced reinforcing bars do not deviate from the layout line by more than 1/4 inch over a 3 foot length of bar.

For staged construction, dowels may be replaced by reinforcing bars with threaded sleeve mechanical splice couplers embedded in the portion of concrete placed first and threaded reinforcing bars inserted in the couplers after forms are removed. Approval by the Engineer is required for the substitution. Construct assemblies that develop 125 percent of the specified minimum yield strength of the dowels shown or specified. Construct reinforcing bars that have effective splice or development lengths equal to the replaced dowels.

When grout sleeve mechanical splices are allowed, submit a written installation plan at least 14 Calendar Days before splice installation. Include splice installation details including grouting operations, Equipment, Material, and testing requirements. Submit an installation plan that conforms to the Manufacturer's testing and installation recommendations.

Provide written documentation, signed by the qualified mechanical splice installer verifying the splices were tested and installed according to manufacturer's recommendations and the Specifications. Also, submit copies of all test results.

Construct the three qualifying splice samples in the same orientation as the production splices.

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(2) Sampling and Testing:

a. General - Furnish labor, Material and Equipment for fabricating sample mechanical splices at no additional cost to the Agency. All sample splices will be tested by the Agency at the Agency’s expense.

b. Samples - Provide all samples meeting the requirements of 02510.20 and this Subsection.

c. Testing - Construct test splices in the presence of the Engineer. Construct test splices with two equal lengths of straight reinforcing bar so that the total length of the assembled sample is not less than 96 inches. Mark each splice sleeve with the heat treatment lot number.

d. Project Site Quality Control - During the installation of mechanical splices:

• Submit one quality control sample for each 100 splices performed up to 500 splices, and then submit one sample for each 500 splices. Successful installer qualification according to 00530.30 satisfies quality control for the first 100 splices being installed.

This sequence of testing will be required for each heat treatment lot used.

• Make non-threaded mechanical splice quality control samples at the Project Site in a manner similar to that used for the production splices.

• Fabricate threaded sleeve mechanical splice quality control samples on a random basis during the cutting of threads on the reinforcing bars and deliver to the Engineer at the Project Site with the material they represent.

• Complete the splice according to the manufacturer's recommendations.

• Quality control samples will be tested according to this Section. If any sample fails to meet the test criteria, the lot which it represents will be rejected until the cause of failure has been determined. Materials from a rejected lot may be accepted if they are shown to be free of the condition which caused the failure.

(3) Installation - Install splices in the presence of the Engineer. Splices made without the Engineer present will be rejected.

Do not place stirrups and other reinforcing bars between a mechanical splice sleeve and the surface of the concrete where it would impair the specified clearance. Instead, place additional reinforcement as necessary at no additional cost to the Agency.

When using epoxy coated reinforcing bars, coat mechanical splices prior to installation according to ASTM A775. After the splices are attached to the rebar, coat exposed areas of bare steel and seal the rebar to splice interface with a manufacturer recommended patching material according to ASTM A775.

(d) Welded Splices - Perform welded splices of steel reinforcing according to AWS D1.4. Submit welder certification, Welding Procedure Specifications and Procedure Qualification Records to the Engineer for approval.

Provide a Certified Welding Inspector according to AWS D1.4 who:

• Performs visual inspection of Work performed by the certified welder.

• Prepares, signs, and submits a signed report confirming the Work was performed according to AWS D1.4.

00530.43 Splicing Welded Wire Fabric - Overlap sheets of welded wire fabric as shown or provide edge and end laps not less than one mesh in width. Securely fasten sheets at the ends and edges according to 00530.41.

00530.44 Substitutions - Substitute different size bars only if approved.

00530.47 Headed Bar Reinforcement:

(a) General - Construct headed bar reinforcement according to 02510.25 and the manufacturer's recommended procedures.

(b) Sampling and Testing:

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(1) General - Furnish labor, material and Equipment for fabricating sample headed bar reinforcement at no additional cost to the Agency. All sample headed bar reinforcement will be tested by the Agency at the Agency's expense.

(2) Samples - Provide all samples meeting the requirements of 02510.25 and this Subsection.

(3) Testing - Construct test headed bar reinforcement in the presence of the Engineer. Construct test headed bar reinforcement with straight reinforcing bar not less than 48 inches in length. Mark each headed bar with the heat treatment lot number.

(4) Project Site Quality Control - During the installation of headed bar reinforcement:

• Submit one quality control sample for each 100 headed bars installed up to 500 headed bars, and then submit one sample for each 500 headed bars. Successful installer qualification according to 00530.35 satisfies quality control for the first 100 headed bars being installed. This sequence of testing will be required for each heat treatment lot used.

• Complete the headed bar reinforcement according to the manufacturer's recommendations.

• Quality control samples will be tested according to this Section. If any sample fails to meet the test criteria, the lot which it represents will be rejected until the cause of failure has been determined.

(c) Installation - Install headed bar reinforcement in the presence of the Engineer. Headed bar reinforcement installed without the Engineer present will be rejected.

When using epoxy coated reinforcing bars, coat heads prior to installation according to ASTM A775. After the heads are attached to the rebar, coat exposed areas of bare steel and seal the rebar to head interface with a manufacturer recommended patching material according to ASTM A775.

Measurement

00530.80 Measurement - No measurement of quantities will be made for reinforcement.

Payment

00530.90 Payment - No separate or additional payment will be made for reinforcement. Payment will be included in payment made for the appropriate items under which this Work is required.

Payment will be payment in full for furnishing and placing all Materials, and for furnishing all equipment, labor, and Incidentals necessary to complete the Work as specified.

No separate or additional payment will be made for clips, wire, separators, wire chairs, or other Material used in fastening the reinforcement in place.

Section 00540 - Structural Concrete

Description

00540.00 Scope - This Work consists of furnishing, placing, and finishing portland cement concrete, throughout this Specification referred to as structural concrete or concrete, for Bridges and other Structures according to the Specifications and in close conformity to the lines, grades and dimensions shown or established.

00540.01 Abbreviations and Definitions:

Falsework - Structural system to support the vertical and horizontal loads from forms, reinforcing steel, plastic concrete, structural steel, loads from placement operations and other related loads.

Forms - Structural system to contain the horizontal pressures exerted by plastic concrete.

HPC - High Performance Concrete - See 02001.02 for definition.

Post-Tensioned - Tensioning of prestressing steel after concrete has reached specified strength.

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Surrounding Temperature - The air temperature measured in the shade. When placement and curing of concrete is enclosed, it is the lowest temperature within the enclosure.

Tolerance:

• The permitted variation from a given dimension or quantity, or

• The range of variation permitted in maintaining a specified dimension, or

• A permitted variation from location or alignment.

00540.02 Deck Pre-Placement Conferences:

(a) Supervisory Personnel - Hold a pre-placement conference with all supervisory personnel who are to be involved in the concrete Work at a mutually agreed time approximately 3 weeks in advance of placing concrete for bridge decks.

Ensure the Engineer, concrete Supplier, and any other Subcontractor is represented. Present and discuss all phases of the concrete deck placement Work.

(b) Placement Crew - Hold a second pre-placement conference with the Engineer and the entire concrete placement crew at the Project Site 1/2 hour before the first placement begins to discuss placement duties and procedures.

Materials

00540.10 Materials - Furnish Materials meeting the following requirements. Refer to the 2021 Oregon Standard Specifications for Construction. An online version is available using the link below.

(https://www.oregon.gov/odot/Business/Specs/2021_STANDARD_SPECIFICATIONS.pdf)

Concrete Concrete and Crack Sealers Concrete Coating Curing Materials Concrete Surface Retarder Epoxy and Non-Epoxy Bonding Agents Epoxy and Non-Epoxy Grouts Epoxy Cement Portland Cement Concrete Repair Material Hot Applied Joint Sealant ...................................................................... 02440.30 Preformed Expansion Joint Filler .......................................................... 02440.10

00540.11 Classes of Concrete - Furnish concrete meeting the requirements of Section 02001 and the requirements of Table 02001-1 for the classes of concrete to be used in various Structures and concrete paving mixtures. The Plans or Special Provisions will show the class of concrete required for the component parts of the Structure. Use the specified class of concrete, or a higher class. Where the class is not specified, use Class 3300.

00540.14 Concrete Mix Tolerances and Limits - Furnish a workable concrete mixture, uniform in composition and consistency and meeting the properties and limits requirements of 02001.20.

00540.15 Form Materials - Furnish wood, minimum nominal 5/8 inch thick APA exterior grade plywood, minimum nominal 5/8 inch thick APA plyform, metal, or other suitable form material. For round concrete columns, provide either metal or other approved form material that produces a smooth and true surface free from fins, joints and other irregularities. Use APA plyform for all decks and slabs.

00540.16 Quality Control - Provide quality control according to Section 00165 and the following:

• Sample and test according to the MFTP.

• For all structural concrete, provide personnel according to 00540.30 to sample and test the mix for temperature, air content, slump, water-cementitious ratio, density and yield, from the first load of each placement, whenever there is a visible change in the slump of the concrete, and when a set of cylinders is obtained.

• If the results of any test are outside of the Specification limits, stop placement of the load. Correct the load or, if the load cannot be corrected, do not incorporate it into the Work. Test subsequent https://www.oregon.gov/odot/Business/Specs/2021_STANDARD_SPECIFICATIONS.pdf

PRECAST CONCRETE PANEL SOUND WALLS FOR SW ROY ROGERS RD (BORCHERS DR TO CHICKEN CRK) PROJECT 12 loads before any further concrete placement. Correct subsequent loads if any of the tests are still outside the Specification limits. Return to the specified test frequency when the test results from two consecutive loads are shown to meet the Specification limits.

00540.17 Acceptance of Concrete - Acceptance of concrete will be according to Section 00165 and the following:

(a) Aggregate - Acceptance of aggregate will be according to 02690.12.

(b) Plastic Concrete - Acceptance of plastic concrete will be based on tests performed by the Contractor's QCT, according to the tolerances and limits of 02001.20.

(c) Hardened Concrete - Cast and cure test specimens according to AASHTO T 23 in 6 inch x 12 inch or 4 inch x 8 inch, single-use plastic molds and test at 28 days according to AASHTO T 22.

(1) General - For all classes of concrete, acceptance of hardened concrete will be based on an analysis of compressive strength tests of cylinders cast by the QCT. Test cylinders at an ODOT certified laboratory.

(2) Acceptance - Hardened concrete with an ASTV meeting or exceeding the specified design strength, ƒ'c will be accepted for strength. If the ASTV is less than ƒ'c but at least 85 percent of ƒ'c, the Engineer may review the results to determine if the concrete represented by the cylinders is suitable for the intended purpose. Remove concrete that has an ASTV less than 85 percent of ƒ'c unless otherwise authorized, in writing, by the Engineer. If the concrete is removed, the cost of removal, replacement and all related Work is the Contractor's responsibility. If the Engineer determines that the concrete is suitable for the intended purpose, the concrete may be allowed to remain in place, subject to a price adjustment according to 00150.25.

If an ASTV falls below ƒ'c, the Contractor may submit a written plan outlining a proposed alternate method of evaluating compressive strength. Submit the plan for review by the Engineer within 3 days of the test. Provide evidence that a reasonable ƒ'cr (over-design) was maintained and that there is credible evidence (besides low strength) which warrants consideration of this option. The Engineer may allow an alternate method of acceptance if the compressive strength test results are determined to be suspect from definable external factors.

Equipment

00540.22 Concrete Conveying Equipment - Use clean, non-aluminum conveying Equipment capable of supplying concrete to the point of placement without segregation.

(a) Concrete Pumping Equipment - Provide a discharge line for the pump made of steel or rubber pipe and having the following minimum size:

Nominal Maximum Size Minimum Pipe Size, of Concrete Aggregate Inside Diameter

1 inch 4 inches 1 1/2 inches 5 inches

(b) Chutes - Use steel or steel-lined chutes. Where steep slopes are required, equip the chutes with baffles or provide short lengths that reverse the direction of movement.

(c) Pipes or Trunks - Other than tremie seal pipe, provide rubber or steel pipes, and plastic trunks.

(d) Tremie Seal Pipe - Provide a tremie seal pipe that:

• Is rigid pipe with minimum diameter of 10 inches and sufficient length to reach from the bottom of the excavation to above the waterline, with an attached receptacle or hopper for receiving concrete.

• If jointed, is the flange-and-gasket type and waterproof.

• Has means to close the discharge end.

• Is supported to permit free movement of the discharge end throughout the seal.

• Is equipped with a device to permit rapid lowering when necessary to retard or stop the flow of concrete.

PRECAST CONCRETE PANEL SOUND WALLS FOR SW ROY ROGERS RD (BORCHERS DR TO CHICKEN CRK) PROJECT 13

00540.23 Vibrators - Provide vibrators that:

• Are an internal type unless other methods are approved by the Engineer.

• Are capable of transmitting vibration to the concrete at frequencies of not less than

4,500 impulses per minute.

• Are in working condition to meet manufacturer's rating.

• Are fitted with a manufactured rubber sleeve to prevent damage to epoxy coated reinforcement.

00540.25 Straightedge - Furnish a 12 foot metal straightedge for checking bridge deck roadway and sidewalk surface tolerances.

00540.26 Concrete Saws - Provide power-driven concrete saws for sawing joints and as required for surface texture.

00540.28 Power Washers - Provide power washers that produce a minimum 2,500 psi pressure at the nozzle, with a fan pattern, and a minimum 4.5 gallons per minute capacity. For bridge decks, provide at least one power washer for each side of the deck section to be placed. When using power washers to produce a fog spray for curing, match the flow rates and pressures of the power washers with the fogging nozzles to produce an average droplet size of 3 mils, according to the nozzle manufacturer's recommendation.

Labor

00540.30 Quality Control Personnel - In addition to the certified technicians required in 02001.50 provide and designate an individual to be present at the placement site at all times during concrete placements for projects with more than 100 cubic yards of structural concrete and for all high performance concrete, and who is authorized and responsible for acceptance and rejection of materials.

Construction

00540.45 Construction of Forms - Construct forms that:

• Conform to ACI 347 and ACI SP-4.

• Are mortar-tight and sufficiently rigid to conform to and maintain the specified dimensions and tolerances.

• Provide a 3/4 inch chamfer on all exposed concrete edges unless otherwise noted.

• Provide a smooth concrete surface unless otherwise specified.

• Are constructed so portions may be removed without disturbing forms that are to remain.

• Are treated with a release agent that is not detrimental to the concrete.

• Are cleaned of dirt, sawdust, excess water and other foreign material before placing concrete in the forms.

• Are saturated with water immediately before placing concrete and kept damp during placement.

• Are retightened before depositing new concrete on or against concrete which has hardened.

On Structures located within 25 aerial miles of the Pacific Ocean, remove metal ties and anchorages to a depth of 2 inches from accessible surfaces. Remove fiberglass form ties and anchorages to a depth of 1 inch from accessible surfaces.

On Structures located more than 25 aerial miles from the Pacific Ocean, construct ties or anchorages within the forms so they can be removed to a depth of at least 1 inch from accessible surfaces.

(a) Form Maintenance - Set forms and maintain them true to designated line and grade until the concrete hardens.

When forms appear to be unsatisfactory, either before or during the placing of concrete, the Engineer may order the Work stopped until the defects have been corrected. Leave forms in place for periods specified in 00540.52.

00540.47 Delivering Concrete - Schedule delivery of concrete to ensure continuous delivery during placement. For all placements except seal and deck placements, ensure the interval between the end of one load and the start of the next load does not exceed 20 minutes. See 00540.48 for seal and deck placements.

If the requirements of the previous paragraph are not met, the Engineer will determine whether the concrete has taken its initial set and may order a bulkhead installed or removal of concrete in the affected placement.

00540.48 Handling and Placing Concrete:

(a) General - Do not place concrete under water or in flowing water unless specifically authorized.

PRECAST CONCRETE PANEL SOUND WALLS FOR SW ROY ROGERS RD (BORCHERS DR TO CHICKEN CRK) PROJECT 14

Place concrete:

• In the sequence shown or as approved.

• In its final position in the forms within 1 1/2 hours after the addition of the cement to the Aggregate. A retarder may be used or required. Use a retarder from the QPL and furnish at no additional cost to the Agency.

• As close as possible to its final position and consolidated to:

o Avoid segregation of the materials and displacement of the reinforcement o Produce a dense, homogeneous concrete, free of voids and Rock pockets

• Through pumps, chutes or trunks conforming to 00540.22, when placement requires dropping concrete more than 5 feet. Place the bottom of pump hose, chutes, pipes or trunks as close to final placement position as practicable.

• In layers not more than 18 inches thick, except for seal concrete placement, and unless shown otherwise.

Place and consolidate each layer before the preceding layer has taken initial set to avoid surfaces of separation between the layers.

Do not place concrete prior to complete approval of:

• The excavation and the bearing material in a foundation

• Installed piling

• The falsework and forms

• Placed reinforcing steel

After initial set of the concrete, do not disturb the forms or place loads on the ends of reinforcing bars projecting from the concrete placement until allowed by 00540.52.

(b) Pumping Concrete - Pump concrete with pumping Equipment conforming to 00540.22. Pump a cement-water slurry through the lines before starting the mix through the pump. Operate the pump in a manner that produces a continuous stream of concrete without air pockets or segregation. When a placement nears completion, if concrete remaining in the pipeline is to be used, remove it in a manner that will not cause contamination of the concrete already in place.

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