SOW5.doc

TECHNICAL PROVISIONS

1. STATEMENT OF WORK:

1. GENERAL.

1.1 The work covered by this contract consists of furnishing all plant, labor, materials and performing all operations required in connection with IDIQ Pavement Contract for Fort Stewart and Hunter AAF. The work includes, but is not necessarily restricted to, the following items

1.1.2 Proper, adequate and proficient supervision shall be provided by the contractor throughout all phases of work.

1.1.3 Unless otherwise approved, the Contractor shall be permitted to do the work between the hours of 7:30 a.m. to 4:00 p.m., Monday through Friday, exclusively. Prior to the contractor performing any work during hours other than those specified, the contractor shall submit a request to the COR for approval by the Contracting Officer. Requests shall be submitted no less than 24 hours prior to the time the contractor desires to work.

1.2 Repair and Overlay Pavement to include pothole repair, crack repair, widening existing roads, and installing slurry seal treatments. This work may contain requirements for milling of pavement. Additional requirements for constructing, raising or repairing manholes/inlets and valves.

1.3 Constructing or replacing headwalls, sidewalks, curbs and gutters. Additional requirements for Utility road crossing repairs to include demolition and construction.

1.4 Installing reflective paint and thermoplastic paint striping, arrows, handicap markings and letters as shown. Additional requirements for removal and installing street signs and pavement markings. All work shall follow the requirements of MUTCD.

1.5 Installation of concrete and corrugated metal pipe to include excavation, backfilling and compaction.

1.6 Construct new parking lots, roadway and related drainage structures.

1.7 Remove and install fencing.

1.8 Placement of new concrete to include slabs, sidewalks and related items.

1.9 Establish grass and erosion control on job sites.

1.10 Modify existing traffic light signal system and install new traffic light signal system at intersections.

1.11 All demolition includes hauling and disposal of material. Disposal will be off the government installation.

1.12 Contractor shall inform the COR in writing 10 days before work is to begin.

1.13 Contractor shall submit a safety plan and traffic plan to the COR for approval prior to beginning work.

2. OCCUPANCY:

2.1. The areas in which the work is to be done will be occupied during the performance of work under this contract. The contractor shall not receive any additional compensation due to the condition brought about by this occupancy and usage by the Government. It shall be the contractor's responsibility to coordinate with the COR to schedule and perform his work in such a manner as to create the least possible interference with the conduct of normal activities within the areas. The contractor shall not block more than one access of the building(s) at any time, nor shall they disrupt the existing parking arrangement to any of the building (s) parking areas.

3. AS‑BUILT RECORD DRAWINGS:

3.1 The Contractor shall be responsible for maintaining one set of master/record construction drawing prints on the job site on which he shall keep a neat and accurate record of all deviations from the original contract documents as the work progresses. The contractor is responsible for noting all changes and correction on these master/record construction drawing prints promptly as the changes occur in red ink(redline prints) and note date when these changes occurred, but in no case less often than on a weekly basis. The master/record construction drawing prints which are maintained in red ink shall indicate all the changes and modifications incorporated into the work as well as the following:

3.1.1 Actual locations of all subsurface and concealed utility lines, type of materials used, sizes, etc. In order that the location of these lines and appurtenances may be determined in the event the surface openings or indicators become covered or obscured, the master/record construction drawings shall show by offset dimensions to two permanently fixed surface features. Valves, splices boxes and similar appurtenances shall be located by dimensions along the utility run from a reference point. The average depth below the surface of each run shall also be recorded.

3.1.2 Any shop drawings that constitute part of the design shall be included with the record drawings.

3.2 The master/record (redline construction drawings) prints with corrections, such as field changes and contract modifications, shall be certified by the Contractor as to their correctness and submitted to the Contracting Officer’s Representative for approval. Once these provisional master/record (redline construction drawing) prints have been approved by the COR, the COR will obtain a compact disc (CD) of computer generated construction drawings from the DPW Engineering Service Division, Building 1114 at Ft. Stewart or Building 1021 at Hunter AAF, as applicable. The contractor shall then transfer all corrections from redline construction drawing prints to the compact disc (CD) of computer generated construction drawings. Corrections done shall be in McroStation “.dgn” format. The Contractor shall note on the computer generated construction drawings the words “AS-BUILT” in the revision block with the next revision number to identify any changes made. Also, revision number identification will be placed where any changes were made. The contractor shall then submit AS-BUILT compact disc (CD) of computer generated drawing and one (1) AS-BUILT hardcopy with contractor’s redline corrections to the COR to insure accuracy that all corrections made were transferred from redline construction drawing prints to AS-BUILT hardcopy prints. Once the COR approves the AS-BUILT hardcopy prints the COR will then turn over to DPW/ ESD/ Drafting section for final approval of AS-BUILT compact disc (CD) of computer generated drawings and at this time the Contractor can receive final payment.

4. ORDERING PROCEDURES:

4.1 As the need exists for performance under terms of this contract, the Contracting Officer will notify the Contractor, in writing, of an existing requirement.

4.2 Upon receipt of this notification, the contractor shall respond within 2 (two) working days as follows:

4.2.1 Visit the proposed work site with the Contracting Officer or his/her representative. During this visit the contractor shall be given the requirements of the contract.

4.2.2 Establishing verbal contact with the Contracting Officer or his/her representative to further define the scope of the requirements. The contractor while on site, take all measurements and make written notes as to the instructions and verbal information given during the initial site visit. The contractor shall be responsible for providing all measuring equipment needed to verify existing conditions.

4.3 Time for submittal of the contractor’s proposal for individual requirements will be agreed upon by the government and the contractor based on urgency of the requirements, as defined or established during initial planning. In the absence of an agreement, the proposal shall be submitted within seven days after initial visit.

4.4 The contractor’s proposal shall be supported by necessary documentation to indicate that adequate engineering and planning to accomplish the requirements has been accomplished.

4.5 Upon receipt of the Contractor’s proposal, the government will review the proposal for completeness. In the event the proposal requires negotiations, the contractor shall submit a revised proposal based on the negotiations, the contractor shall submit a revised proposal based on the negotiations within 2 (two) working days.

5. CONTRACTOR QUALITY CONTROL. The contractor shall provide and maintain an effective quality control program that complies with the contract clause entitled "Inspection of Construction" (FAR 52.246 12), the below stated quality control requirements and the quality control requirements stated in the respective section of the specifications.

5.1 The contractor shall establish a quality control system to perform sufficient inspection and test of all items of work, including that of his subcontractors. The quality control system shall ensure conformance with applicable specifications and drawings with respect to materials, workmanship, construction, finish, functional performance, and identification. The quality control system shall be established for all construction except where the technical provisions of the contract provide for specific Government control by inspections, tests, or other means. The contractor's control system shall specifically include the surveillance and tests required in the technical provisions of the contract specifications. Quality control personnel shall also be charged with the responsibility of policing Contractor's Safety Program. This duty shall be clearly set forth in the quality control program.

5.2 The contractor's quality control system is the means by which he assures himself that his construction complies with the requirements of the contract plans and specifications. The controls shall be adequate to cover all construction operations, including both on site and off site fabrication and shall be keyed to the proposed construction sequence and shall include as a minimum at least three phases of inspection for all definable items or segments of work as follows:

5.3 Preparatory Inspection. To be performed prior to beginning any work on any definable segment, to include a review of contract requirements; a check to assure that all materials and/or equipment have been tested, submitted, and approved; a check to assure that provisions have been made to provide required control testing: examination of the work area to ascertain that all preliminary work has been completed; a physical examination of materials and equipment to assure that they conform to approved shop drawings or submittal data and that all materials and/or equipment are on hand. The contracting officer shall be notified at least 48 hours in advance of the preparatory inspection and such inspection shall be made a matter of record in the contractor's quality control documentation as required by subparagraph 5.6 below.

5.4 Initial Inspection. To be performed as soon as a representative segment of the particular item of work has been accomplished and to include: examination of the quality of workmanship, a review of control testing for omissions, and dimensional requirements.

5.5 Follow Up Inspection. To be performed daily or as frequently as necessary to assure continuing compliance with contract requirements, including control testing, until completion of the particular segment of work.

5.6 The contractor shall maintain current records of all inspections and tests performed on an appropriate approved format. These records shall provide factual evidence that the required inspection or tests have been performed, including type and number of inspection or tests involved: results of inspections or tests; nature of defects, causes for rejection, etc.; proposed remedial action: and corrective actions taken. The contractor shall not build up or conceal any feature of the work containing uncorrected defects, and payment on deficient items will be withheld until they are satisfactorily corrected or other action has been taken as authorized pursuant to the Contract Clause entitled "Inspection of Construction". These records must cover both conforming and defective items and must include a statement that all supplies and materials incorporated in the work are in full compliance with the terms of the contract. Legible copies of these records must be furnished through the COR, to the Contracting Officer daily. Records shall be verified by the Prime Contractor's designated representative daily.

5.7 The contractor's job supervisory staff may be used for quality control, supplemented, as necessary by special technicians, or testing facilities, to perform all specified tests, balancing, adjusting and/or regulating mechanical and electrical devices, equipment and/or systems. As an option, by an industry recognized testing laboratory approved by the Contracting Officer.

5.8 The contractor shall furnish to the Contracting Officer for approval as soon as practicable, and in no event later than 7 days after receipt of the Notice to Proceed, an original and 4 copies of a quality control plan which shall include the personnel, procedures, instructions, and records to be used. This document shall include as a minimum:

5.8.1 The quality control organization.

5.8.2 Qualifications of personnel to be used for this purpose.

5.8.3 Authority and specific areas of responsibilities of each of the quality control personnel.

5.8.4 Methods of performing quality control inspections including that for his subcontractor's work. This requires a statement concerning quality control measures to be used in work described in each technical section of the specifications.

5.8.5 Designation how testing shall be performed by an industry recognized testing laboratory. ` The following information shall be a part of the quality control plan.

5.8.6 Latest calibration data for concrete testing machines and Marshall Machine where applicable. Name and qualifications of each employee designated for the performance of specific types of tests. A list of the control tests which the Contractor understands that he is to perform, not only by name, but also by numerical designation, together with a statement to the effect that the laboratory has a copy of each such procedures, and has facilities and serviceable testing equipment to perform these tests.

5.8.7 The Contractor's understanding of the procedures to follow if the test result indicate lack of compliance with the specification requirements.

5.9 A copy of a letter of direction to the Contractor's representative responsible for quality control, outlining his duties and responsibilities, and signed by a responsible officer of the firm.

5.10 Before construction operations are commenced, the Contractor shall meet with the Contracting Officer and discuss his quality control plan. The meeting shall develop mutual understanding relative to details of the system, including the forms to be used for recording the quality control operations, inspections, administration of the system, and the interrelationship of Contractor and Government Inspection.

5.11 No construction and/or off site fabrication shall be started until the Contractor's quality control plan is approved by Contracting Officer. Construction of any feature of the work will only be permitted after approval of the quality control plan, or at least approval of that portion of the plan applicable to the specific feature of the work. As a rule, except for the start of the construction period, quality control of test techniques should be approved by the Contracting Officer prior to the application. No payment estimate will be processed by the Contracting Officer. The Contractor shall notify the Contracting Officer in writing of any proposed changes to this inspection system; no such change shall be implemented prior to approval in writing by the Contracting Officer.

5.12 If recurring deficiencies in an item indicate that the quality control system is not adequate, such corrective actions shall be taken as directed by the Contracting Officer.

5.13. In the event the Contractor utilizes the service of a commercial testing laboratory, the Contracting Officer reserves the right to check laboratory equipment for compliance with the standards set forth in the contract specifications and to check the laboratory technician's testing procedures and techniques.

5.14 The Contracting Officer reserves the right to utilize the Contractor's control testing laboratory and equipment to make spot tests and to check the Contractor's testing procedures, techniques, etc.

6. SUBMITTALS: The following shall be submitted to the Contracting officer for approval at the preconstruction meeting.

6.1 Certificate of Compliance. The contractor shall furnish in triplicate, any manufacturer's certificates required for demonstrating proof of compliance of materials with technical specification requirements in this contract. Each certificate shall be signed by an authorized officer of the manufacturing company and shall contain the name and address of the contractor, the project name and location and the quantity and dates of shipment or delivery to which the certificates apply. Copies of laboratory test reports submitted with certificates shall contain the name and address of the testing laboratory and the date of the tests to which the report applies. Certification shall not be construed as relieving the contractor from furnishing satisfactory material, if after tests are performed on selected samples, the material is found not to meet the specific requirements.

6.1.1 Samples. The Contractor shall furnish samples of materials for approval, demonstrating proof of compliance of materials pertaining to the applicable sections of the technical specification requirements.

6.1.2 Descriptive Data. The Contractor shall furnish the manufacturer's descriptive data, installation, and maintenance instructions, for approval, as required by the applicable sections of the technical specifications.

6.1.3 Test Reports. The Contractor shall furnish copies of test reports, for approval, as required by the applicable sections of the technical specifications.

6.1.4 Shop Drawings. The Contractor shall furnish shop drawings for approval, and shall consist of illustrations, schedules, performance charts, instructions, brochures, diagrams, drawings, and other information to illustrate and/or demonstrate compliance to the applicable sections of the technical specifications.

7. COMPLETION TIME (CT) FOR DELIVERY ORDERS:

7.1 A completion time indicated by “days” in the bidding schedule shall be expressed in calendar days in a Delivery Order. For the purpose of computing the completion time, five (5) calendar days shall be allowed for the contractor to receive the Delivery Order by mail. If the Delivery Order is hand delivered, the five (5) days mailing time shall not be allowed.

7.2 The time for completion of each item of work is established in the bidding schedule, subject to any limitations contained in the specifications (e.g., curing duration). The time for completion of the various bid schedule items included within a single Delivery Order are cumulative for that Delivery Order. In the event that the cumulative work days in an individual Delivery Order exceed 45 days, the time for completion of the subject work shall be negotiated to ensure that the work is accomplished expeditiously. An additional 10 days will be allowed to mobilize equipment and obtain the necessary materials. Submittals for a particular Contract Line Item Number (CLIN) shall be performed when the initial order for that particular CLIN is placed. The Contractor shall transmit required submittals within 10 calendar days following receipt of the delivery orders. The Government will respond by the tenth calendar day following receipt of the submittals by the Contracting Officer. Time for completion of a single Delivery Order – from Contractor’s receipt of delivery order, 20 calendar days (maximum) to obtain approval of all submittals (if required), 10 calendar days to mobilize and obtain materials, and the cumulative work days of the CLINs contained in the delivery order.

8. ISSUANCE OF DELIVERY ORDERS:

8.1 The Contracting Officer, Fort Stewart Directorate of Contracting, shall order work to be performed under this contract by issuance of delivery orders as set forth in the FAR Ordering Clause No. 52.216-18. The Government shall ascertain the quantities of the various unit-priced bid items to perform all operations required for a particular work using the unit of measure in the bidding schedule. The area of work in a delivery order shall be defined and the weight of the asphalt products ordered (to be evenly distributed to produce a uniform final product over the defined area) shall be specified.

9. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

9.1 The Contractor shall commence work on a delivery order within five (5) work days after receipt of the delivery order.

9.2 The Contractor shall prosecute said work diligently and shall complete all work ready for use not later than the time stated in RATE OF COMPLETION. The time stated for completion shall include final clean up of the work area.

9.3 The Contractor, upon final invoice for each delivery order, shall provide concrete and asphalt delivery tickets to the COR with the invoices.

9.4 The Contractor is to provide an invoice within 5 working days of completion of asphalt and or concrete installation.

10. PERIOD OF PERFORMANCE.

10.1 The period of performance which will be commensurate with work being ordered will be stated on individual delivery orders.

11. DELIVERY ORDER LIMITATION (APR 1984) (FAR 52.216 19). MINIMUM ORDER.

11.1 When the Government requires supplies or services covered by this contract in an amount of less than $3,000.00, the Government is not obligated to purchase, nor is the Contractor obligated to furnish, those supplies or under the contract.

12 ACCEPTANCE OF WORK:

12.1 After completion of work, the contractor shall notify the COR and a site inspection shall be made by a representative of the Contractor and the COR. All work, notification of completion, inspection and correction of deficiencies shall be accomplished within the time frame specified for completion of work.

13. SCHEDULE OF WORK ON TANKTRAILS:

13.1 The contractor’s attention is directed to the fact that some of the work will be accomplished on tank trails located within the boundary of Ft. Stewart and Hunter AAF. The contractor shall notify the Contracting Officer’s Representative 10 working days in advance to coordinate the contract performance with the Range Control Office. Contractor will be required to maintain a one way traffic system during work on tank trails.

14. ENGINEERING AND LAYOUT REQUIREMENTS:

14.1. General survey and layout requirements for existing roadways overlays, roadway widening, drainage structures and parking lot overlays shall be part of contractors bid. Where layout and engineering work will be required for establishing new roadway, parking lots and site work the contractor and government representative will reach an agreed time frame during the scoping of project. This cost will be covered by the Engineering and Layout bid item shown on bid schedule.

15. BORROW PIT MATERIAL

15.1 Borrow pit material will be available at Ft. Stewart only. No borrow pit material will be available on Hunter AAF.

16. WATER

16.1. Water will be furnished at no cost to the Contractor from a fire hydrant designated by the COR or authorized representative and located within a reasonable proximity to the work area. The Contractor shall install a gate valve and a back-flow prevention device on the fire hydrant tap. The Contractor shall furnish all equipment, material, and labor required to obtain and deliver water from the designated fire hydrant to the work area(s).

17. LANDFILL FOR DISPOSAL

17.1 No landfill area will be available for use by the contractor at Ft. Stewart or Hunter AAF.

18. RECYCLING PROGRAM

18.1 FS/HAAF has a mandatory recycling program. Unless otherwise specified, the Government retains all salvage rights. Contractors shall recycle construction & demolition debris as required by the Installation's recycling clause, Section H, RECYCLING, SALVAGE, AND DISPOSAL OF MATERIALS FORT STEWART AND HUNTER ARMY AIRFIELD. Concrete and asphalt material shall be hauled and disposed of off of government property. The contractor shall provide weight tickets of the disposed materials. Weight tickets shall be provided to the COR. Recycle materials will be broken down when delivered to the Recycling Center (to include metal equipment). Scrap metal will be cut down to no larger than 4 square feet in size.

SECTION 02 41 00

DEMOLITION

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI A10.6

(2006) Safety Requirements for Demolition Operations

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1

(2008, Change 1-2010; Change 1-3 2010; Changes 4-6 2011; Changes 7 2012) Safety and Health Requirements Manual

GEORGIA DEPARTMENT OF TRANSPORTATION (GDOT)

Section 432 GDOT - Mill Asphaltic Pavement

1.2 GENERAL REQUIREMENTS

Do not begin demolition until authorization is received from the Contracting Officer. The work includes demolition, salvage of identified items and materials, and removal of resulting rubbish and debris. Rubbish and debris shall be removed from job site daily, unless otherwise directed, to avoid accumulation at the demolition site. Materials that cannot be removed daily shall be stored in areas specified by the Contracting Officer. In the interest of occupational safety and health, the work shall be performed in accordance with EM 385-1-1.

1.3 REGULATORY AND SAFETY REQUIREMENTS

Comply with federal, state, and local hauling and disposal regulations. In addition to the requirements of the "Contract Clauses," safety requirements shall conform to ANSI A10.6.

1.4 DUST AND DEBRIS CONTROL

Prevent the spread of dust and debris and avoid the creation of a nuisance in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, or pollution. Vacuum and dust the work area Sweep pavements as often as necessary to control the spread of debris that may result in foreign object damage potential to aircraft or vehicles.

1.5 PROTECTION

1.5.1 Traffic Control Signs

Where pedestrian, drivers and aircraft safety is endangered in the area of removal work, use traffic barricades with flashing lights. Anchor barricades in a manner to prevent displacement. Notify the Contracting Officer prior to beginning such work.

1.5.2 Existing Work

Before beginning any demolition work, the Contractor shall survey the site and examine the drawings and specifications to determine the extent of the work. The Contractor shall take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government; any damaged items shall be repaired or replaced as approved by the Contracting Officer. The Contractor shall coordinate the work of this section with all other work and shall construct and maintain shoring, bracing, and supports as required. The Contractor shall ensure that structural elements are not overloaded and shall be responsible for increasing structural supports or adding new supports as may be required as a result of any cutting, removal, or demolition work performed under this contract. Do not overload structural elements or pavements to remain. Provide new supports and reinforcement for existing construction weakened by demolition or removal work. Repairs, reinforcement, or structural replacement must have Contracting Officer approval.

1.5.3 Weather Protection

Where work will be done around buildings, contractor shall protect building and materials from the weather at all times.

1.5.4 Trees

Trees within the project site which might be damaged during demolition, and which are indicated to be left in place, shall be protected by a minimum 4’ high orange fence where directed. The fence shall be securely erected a minimum of 5 feet from the trunk of individual trees or follow the outer perimeter of branches or clumps of trees. Any tree designated to remain that is damaged during the work under this contract shall be replaced in kind or as approved by the Contracting Officer.

1.5.5 Facilities

Protect electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas. The Contractor shall ensure that no elements determined to be unstable are left unsupported and shall be responsible for placing and securing bracing, shoring, or lateral supports as may be required as a result of any cutting, removal, or demolition work performed under this contract.

1.5.6 Protection of Personnel

During the demolition work the Contractor shall continuously evaluate the condition of the structure being demolished and take immediate action to protect all personnel working in and around the demolition site. No area, section, or component of floors, roofs, walls, columns, pilasters, or other structural element will be allowed to be left standing without sufficient bracing, shoring, or lateral support to prevent collapse or failure while workmen remove debris or perform other work in the immediate area.

1.6 BURNING

The use of burning at the project site for the disposal of refuse and debris will not be permitted.

1.7 FOREIGN OBJECT DAMAGE (FOD)

If the contractor is required to work around an airfield all aircraft and aircraft engines will be protected from FOD from debris and waste material lying on airfield pavements. Remove all such materials that may appear on operational aircraft pavements due to the Contractor's operations.

1.8 RELOCATIONS

Perform the removal and reinstallation of relocated items as indicated with workmen skilled in the trades involved. Repair items to be relocated which are damaged or replace damaged items with new undamaged items as approved by the Contracting Officer.

1.9 USE OF EXPLOSIVES

Use of explosives will not be permitted.

1.10 AVAILABILITY OF WORK AREAS

Areas in which the work is to be accomplished will be available in accordance with the approved work schedule.

PART 2 EXECUTION

2.1 EXISTING FACILITIES TO BE REMOVED

2.1.1 Structures

Existing structures indicated shall be removed as directed.

2.1.2 Utilities and Related Equipment

Remove existing utilities and terminate in a manner conforming to the nationally recognized code covering the specific utility and approved by the Contracting Officer. When utility lines are encountered that are not indicated on the drawings, the Contracting Officer shall be notified prior to further work in that area.

2.1.3 Paving and Slabs

Remove concrete and asphaltic concrete paving and slabs as directed on site visit. Provide neat saw cuts at limits of pavement removal as indicated

2.1.4 Asphalt Milling:

Asphalt milling shall be done in accordance with GA DOT SPEC, SECTION 432.

2.1.5 Patching

Where removals leave holes and damaged surfaces exposed in the finished work, patch and repair these holes and damaged surfaces to match adjacent finished surfaces. Where new work is to be applied to existing surfaces, perform removals and patching in a manner to produce surfaces suitable for receiving new work. Finished surfaces of patched area shall be flush with the adjacent existing surface and shall match the existing adjacent surface as closely as possible as to texture and finish.

2.1.6 Trees

The diameter of trees shall be measured 4 (four) feet above natural grade at the tree base.

2.2.1 Title to Materials

Except where specified in other sections, all materials and equipment removed, and not reused, shall become the property of the Contractor and shall be removed from Government property. Title to materials resulting from demolition, and materials and equipment to be removed, is vested in the Contractor upon approval by the Contracting Officer of the Contractor's demolition and removal procedures, and authorization by the Contracting Officer to begin demolition. The Government will not be responsible for the condition or loss of, or damage to, such property after contract award. Materials and equipment shall not be viewed by prospective purchasers or sold on the site.

2.3 CLEANUP

Debris and rubbish shall be removed from basement and similar excavations.

Debris shall be removed and transported in a manner that prevents spillage on streets or adjacent areas. Local regulations regarding hauling and disposal shall apply.

SECTION 03 01 32

PATCHING AND MISCELLANOUS REPAIRS TO CONCRETE SLABS

PART 1 GENERALtc \l1 " PART 1 GENERAL

1.1 REFERENCEStc \l2 "1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO)

AASHTO M 182

(205,R2009) Burlap Cloth Made from Jute or Kenaf

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM C 31

(2010) Making and Curing Concrete Test

Specimens in the Field

ASTM C 78

(2012; E2013) Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)

ASTM C 136

(2006) Sieve Analysis of Fine and Coarse Aggregates

ASTM C 143

(2012) Slump of Hydraulic Cement Concrete

ASTM C 150

(2012) Portland Cement

ASTM C 171

(2007) Sheet Materials for Curing Concrete

ASTM C 173

(2014) Air Content of Freshly Mixed Concrete by the Volumetric Method

ASTM C 192

(2013a) Making and Curing Concrete Test Specimens in the Laboratory

ASTM C 231

(2010) Air Content of Freshly Mixed Concrete by the Pressure Method

ASTM C 260

(2010a) Air-Entraining Admixtures for Concrete

ASTM C 881

(2013) Epoxy-Resin-Base Bonding Systems for Concrete

ASTM D 75

(2013) Sampling Aggregates

ASTM D 1854

(2002) Jet-Fuel-Resistant Concrete Joint Sealer, Hot-Applied Elastic Type

ASTM D5893

(2010) Cold Applied, Single Component

Chemically Curing Silicone Joint Sealant for Portland Cement

ASTM D6690

(2012) Standard Specification for Joint Sealant and Crack Sealants, Hot Applied, for Concrete and Asphalt Pavements

ASTM D7116

(2005) Standard Specification for Joint Sealant, Hot Applied, Jet Fuel Resistant Types, for Portland Cement Concrete Pavement

CORPS OF ENGINEERS (COE)

COE CRD-C 104

(1980) Method of Calculation of the Fineness Modulus of Aggregate

COE CRD-C 300

(1990) Specification for Membrane-Forming Compounds for Curing Concrete

COE CRD-C 400

(1963) Requirement for Water for Use in Mixing or Curing Concrete

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

FS SS-S-200

(Rev E; Am-1; Notice 1) Sealant, Joint, Two-Component, Jet –Blast-Resistant, Cold-Applied; for Portland Cement Concrete Pavement

GEORGIA DEPARTMENT OF TRANSPORATION (GDOT)

2013 Standard Specifications for Construction

1.2 DESIGNtc \l2 "1.3 DESIGN

The concrete mixtures shall be designed to produce concrete having an average flexural strength of 700 psi at 28 days of age, determined in conformance with ASTM C 78, using standard 6 x 6 inch beam specimens. The concrete mixtures shall be designed to secure an air content by volume of 5 percent, plus or minus 1-1/2 percent, based on measurements made on concrete immediately after discharge from the mixer in conformance with ASTM C 231. Mix design studies and tests shall be made in accordance with ASTM C 78 and ASTM C 192, and the test results submitted for approval. Slump shall not exceed 2 inches in accordance with ASTM C 143.

1.3 SUBMITTALStc \l2 "1.4 SUBMITTALS

Sealant Material:

The contractor shall submit “for information only” manufacturer’s certificate that material meets the requirements of specifications.

1.4 EQUIPMENT; APPROVAL AND MAINTENANCEtc \l2 "1.5 EQUIPMENT; APPROVAL AND MAINTENANCE Dependable and sufficient equipment that is appropriate and adequate to accomplish the work specified shall be assembled at the site of the work a sufficient time before the start of paving to permit thorough inspection, calibration of weighing and measuring devices, adjustment of parts, and the making of any repairs that may be required. The equipment shall be maintained in good working condition.

1.5 SAMPLING AND LABORATORY TESTING OF MATERIALStc \l2 "1.6 SAMPLING AND LABORATORY TESTING OF MATERIALS Sampling and testing shall be performed by an approved commercial laboratory or by the Contractor subject to approval. Should the Contractor elect to establish testing facilities, no work requiring testing shall be permitted until the Contractor's facilities have been inspected and approved. The first laboratory inspection shall be at the expense of the Government and the cost of any subsequent inspection resulting from failure of the first inspection shall be at the expense of the Contractor. Such costs shall be deducted from the total amount due the Contractor. All testing shall be performed at no additional cost to the Government.

1.5.1 Cementtc \l3 "1.6.1 Cement

Cement shall be tested as prescribed in the referenced specification under which it is furnished. Cement may be accepted on the basis of mill tests and the manufacturer's certification of compliance with the specification, provided the cement is the product of a mill with a record for the production of high-quality cement for the past 3 years.

1.5.2 Aggregatetc \l3 "1.6.2 Aggregate

Aggregate samples for laboratory testing shall be taken in conformance with ASTM D 75 and tested in accordance with ASTM C 136.

1.5.3 Joint-Sealing Materialstc \l3 "1.6.3 Joint-Sealing Materials Joint-sealing materials shall be tested for conformance with the referenced applicable material specification.

1.5.4 Epoxy-Resin Grouttc \l3 "1.6.4 Epoxy-Resin Grout

Epoxy-resin grout shall be tested for conformance with ASTM C 881.

1.6 DELIVERY AND STORAGE OF MATERIALStc \l2 "1.7 DELIVERY AND STORAGE OF MATERIALS

1.6.1 Cementtc \l3 "1.7.1 Cement

Cement may be furnished in bulk or in suitable bags used for packaging cements and shall be stored in a manner to prevent absorption of moisture.

1.6.2 Aggregatestc \l3 "1.7.2 Aggregates

Aggregates shall be handled and stored in a manner to avoid breakage, segregation, or contamination by foreign materials.

1.6.3 Epoxy-Resin Grouttc \l3 "1.7.3 Epoxy-Resin Grout

Epoxy-resin grout shall be delivered to the site in such manner as to avoid damage or loss. Storage areas shall be in a windowless and weatherproof, but ventilated, insulated noncombustible building, with provision nearby for conditioning the material to 70° F to 85°F for a period of 48 hours prior to use. The ambient temperature in the storage area of the epoxy materials shall at no time be higher than 100° F.

1.6.4 Sealing Materialtc \l3 "1.7.4 Jet-Fuel Resistant Sealing Material Sealing material shall be stored out of the weather, away from direct sunlight, and at temperatures not less than 60° F nor more than 100° F.

1.7 WEATHER LIMITATIONStc \l2 "1.8 WEATHER LIMITATIONS

Concrete shall not be placed when weather conditions detrimentally affect the quality of the finished product. No concrete shall be placed when the air temperature is below 40° F in the shade. When air temperature is likely to exceed 90° F, the concrete shall have a temperature not exceeding 90°F when deposited, and the surface of such placed concrete shall be kept damp with a water fog until the approved curing medium is applied.

PART 2 PRODUCTStc \l1 " PART 2 PRODUCTS

2.1 MATERIALStc \l2 "2.1 MATERIALS

2.1.1 Coarse Aggregatetc \l3 "2.1.1 Coarse Aggregate

2.1.1.1 Compositiontc \l4 "2.1.1.1 Composition

Coarse aggregate shall consist of gravel, crushed gravel, crushed stone, or a combination thereof, or crushed blast-furnace slag.

2.1.1.2 Qualitytc \l4 "2.1.1.2 Quality

Aggregate as delivered to the mixers shall consist of clean, hard, unweathered, and uncoated particles. Dust and other coatings shall be removed from the coarse aggregates by adequate washing.

2.1.1.3 Particle Shapetc \l4 "2.1.1.3 Particle Shape

Particles of the coarse aggregate shall be generally spherical or cubical in shape.

2.1.1.4 Size and Gradingtc \l4 "2.1.1.4 Size and Grading

The maximum nominal size of the coarse aggregate shall be 1/2 inch. The coarse aggregate shall be well graded within the limits specified, and when tested in accordance with ASTM C 136, shall conform to the following grading requirements as delivered to the batching hoppers:

Sieve designation Percentage by weight passing

U.S. Standard individual sieves No. 4 to square mesh 1/2 inch

3/4 inch 100

1/2 inch 90-100

3/8 inch 40-70

No. 4 0-15

No. 8 0-5

2.1.2 Fine Aggregatetc \l3 "2.1.2 Fine Aggregate

2.1.2.1 Compositiontc \l4 "2.1.2.1 Composition

Fine aggregate shall consist of either natural sand, manufactured sand, or a combination of natural and manufactured sand, and shall be composed of clean, hard, durable particles.

2.1.2.2 Particle Shapetc \l4 "2.1.2.2 Particle Shape

Particles of the fine aggregate shall be generally spherical or cubical in shape.

2.1.2.3 Gradingtc \l4 "2.1.2.3 Grading

Grading of the fine aggregate as delivered to the mixer shall conform to the following requirements when tested in accordance with ASTM C 136.

Sieve designation

U.S. Standard Percentage by weight, square mesh passing

3/8 inch 100

No. 4 95-100

No. 8 80-90

No. 16 60-80

No. 30 30-60

No. 50 12-30

No. 100 2-10

In addition, the fine aggregate, as delivered to the mixer, shall have a fineness modulus of not less than 2.40 nor more than 2.90, when calculated in accordance with COE CRD-C 104.

2.1.3 Air-Entraining Admixturetc \l3 "2.1.3 Air-Entraining Admixture Air-entraining admixture shall conform to ASTM C 260.

2.1.4 Cementtc \l3 "2.1.4 Cement

Cement shall be portland cement conforming to ASTM C 150, Type I or II.

2.1.5 Curing Materialstc \l3 "2.1.5 Curing Materials

2.1.5.1 Burlaptc \l4 "2.1.5.1 Burlap

Burlap shall conform to AASHTO M 182.

2.1.5.2 Curing Compoundtc \l4 "2.1.5.2 Curing Compound

Membrane-forming curing compound shall be a pigmented type conforming to COE CRD-C 300.

2.1.5.3 Waterproof Blanket Materialstc \l4 "2.1.5.3 Waterproof Blanket Materials Waterproof blanket materials shall conform to ASTM C 171, Type optional, color white.

2.1.6 Epoxy-Resin Grouttc \l3 "2.1.6 Epoxy-Resin Grout

Epoxy-resin grout shall be a two-component material formulated to meet the requirements of ASTM C 881, Type I or II. Type I material shall be used when pavement, materials, or atmospheric temperatures are 70° F or above. Type II material shall be used when pavement, materials, or atmospheric temperatures are below 70° F.

2.1.7 Joint-Sealing Materialstc \l3 "2.1.7 Joint-Sealing Materials Joint-sealing materials shall be as follows:

2.1.7.1 Jet-Fuel Resistant and Engine Blast Areastc \l4 "2.1.7.1 Jet-Fuel Resistant Jet-fuel resistant material shall conform to ASTM D1854 or ASTM D7116.

Use material SS-S-200 for Blast Resistant sealant.

2.1.7.2 Non Jet-Fuel Resistant

Non Jet fuel resistant material shall conform to ASTM D6690 or ASTM D5893.

2.1.7.3 Backer Rod Material

Backer rod and bond breaking tape shall be compatible with the sealant and sealant installation requirements. Backer material shall have a width of 25%±5 greater than joint sealant reservoir.

2.1.8 Watertc \l3 "2.1.8 Water

Water shall be clean, fresh, and free from injurious amounts of oil, acid, salt, alkali, organic matter, or other deleterious substances. Water approved by Public Health authorities for domestic consumption may be accepted for use without being tested. Water that is of questionable quality, in the opinion of the Contracting Officer, shall be tested in accordance with COE CRD-C 400.

2.1.9 Anchorage Items:

Standard manufactured item of the type required for the application.

2.1.10 Concrete Material:

Material shall meet the requirements of ASTM C 78, cement type optional. Only one brand of any one type of cement shall be used for exposed concrete surfaces.

2.1.11 Curing Compound:

Impervious sheet or membrane-forming curing compound. Impervious sheet shall be white opaque polyethylene 4 mil thick, waterproof kraft paper, or polyethylene-coated burlap. Membrane-forming curing compound shall be of commercial formulation, sprayable, nontoxic and type that will dry within 4 hours and form a film highly resistant to moisture loss from concrete while curing. Compound shall be clear with fugitive dye, resin-base or chlorinated-rubber-base-type.

2.1.12 Form Coating

Nonstaining form oil or form release agent that will not deleteriously affect concrete surface nor impair subsequent applications.

2.1.13 Form Material

Plywood or hardboard especially made for concrete form use or other material; that will produce the specified finish without adversely affecting the concrete surface.

2.1.14 Reinforcement

Welded wire fabric and reinforcing steel shall meet the requirement of Section 03 20 01.00 10 (Concrete Reinforcement).

PART 3 EXECUTIONtc \l1 " PART 3 EXECUTION

3.1 CONDITIONING OF EXISTING PAVEMENTtc \l2 "3.1 CONDITIONING OF EXISTING PAVEMENT A scoping will be held on each job site, between the contractor and government, and an agreement will be made on the slabs, joints, etc. to be repair or replaced.

3.1.1 Preparation of Existing Joints and Cracks in Concrete Pavement tc \l3 "3.1.1 Preparation of Existing Surfaces

3.1.1.1 Reseal Joints and Cracks in Pavement:

Existing joints shall be thoroughly cleaned of all foreign material to including oil, vegetation, asphalt, curing compound, sealant adhesive, backing material, existing sealant, etc. Joints were grass or weeds are present shall be treated with a herbicide. Apply herbicide in accordance with manufacturers printed instructions. Cracks in pavement shall be routed to depth shown by either wet or dry sawing with a diamond or abrasive blades and any saw residue or other contaminants thoroughly removed. tc \l3 "3.1.2 Preparation of JointsThe existing sealant in the joints is to be completely removed. The contractor shall exercise utmost care in this removal and cleaning operations to minimize damaging or enlarging the width of the joint. Any damage caused by the contractor shall be repaired by the contractor at no cost the government. The contractor shall demonstrate to the COR that the proposed method of cleaning old sealant or foreign material from joint will not widen the joint. In addition, the method shall not alter the joint profile including rounding of the top corners, or alter the texture of the concrete riding surface. Cleaning of the joint using a chemical agent will not be allowed. The cleaning process shall produce a new, clean concrete face on the vertical faces of the joint applied in accordance with sealant manufacturer application requirements. The bond breakers shall be selected and used in accordance with sealant manufacture. Prior to installing a bond breaker, the joint or crack must be clean and dry. Any necessary cleaning, air blasting, or air-drying will be completed before placing the bond breaker and sealant. The diameter of the backer rod used shall be at least 25% larger than the joint width. Sealant shall be installed as soon as possible after joint or crack has been cleaned and the bond breaker installed. This will insure that the joint or crack remains clean and dry. If the joint or crack does become contaminated, damp or wet the bond breaker must be removed, if it is installed, the joint or crack cleaned and dried, and a new bond breaker installed prior to placing the sealant. The air temperature at time of placement must be 40° F or higher. Sealant material shall be applied by pump or other approved methods. Pump shall be of sufficient capacity to deliver the necessary volume of sealant in one pass. The nozzle shall be of sufficient size and shape to closely fit into the joint to introduce the sealant inside the joint with sufficient pressure to prevent voids occurring in the sealant and to force the sealant into contact with the joint faces. After a joint or crack has been sealed all surplus sealant or other residue on the pavement surface shall be promptly removed. Traffic will not be permitted over sealant until the sealant is tack free, cured sufficiently to resist displacement of the sealant due to slab movement or other causes, and until debris from traffic does not imbed into the sealant.

3.2 Pavement Spall Repair

This work shall consist of the partial depth patching of spalls in concrete pavement by removing the broken, damaged or disintegrated concrete pavement surfaces. Before placement, the Contractor and the Contracting Officers Representative shall perform a site inspection and identify areas to be replaced.

3.2.1 Construction:

In areas such as tank trails the patch operation shall be conducted in one lane at a time and in a safe and expeditious manner that will offer minimum inconvenience.

3.2.2 Spall Repair:

Each joint or surface area with visual defect shall be “sounded” to determine the limits of the damage or defective areas by striking the pavement surface along each side of the joint with a hammer, chain drag, or other similar tools to detect unsound concrete having a “flat” or hollow sound. The limits of the defective areas shall be marked on the pavement by making a rectangular area two inches beyond the outer limits of the unsound concrete are to serve as a guide for sawing. Spalled areas with less than 2 feet of each other along a joint shall be marked as one spall. If separated 2 feet or more, mark as separate spall areas. Defective (spalled) joint areas less than six inches in length and 1 ½” inches in width shall not be repaired under this specification, but shall be thoroughly cleaned and sealed as part of the sealing operation. The rectangular marked areas shall be sawed with near vertical faces not less than 2 inches nor more than 3 inches in depth. All “unsound” material within the sawed area is to be removed with a 30 pound chipping hammer. Utmost care shall be exercised not to damage or fracture the “sound” concrete substrate to be left on the bottom of the spall area. Use a sharp pointed bits is prohibited. Prior to placing the patching material, the face of the existing transverse and/or longitudinal joints bordering the repair areas shall be sawed a minimum of 5 inches deep and ¼” wide with the full depth of the saw cut extending at least one inch beyond the limits of the repair area in each direction. Over-cutting of the pavement shall be held to a minimum.