SOW_Pipe Lining_Delawares_Revision as of 11-27-2017.pdf

Culvert Pipe Lining

For Delaware County

Statement of Work

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GENERAL PROVISIONS

Governing Specifications

American Society for Testing and Materials (ASTM)

Contract Validity Period

Option to Extend

Estimated Quantities

Flow Control

TV Inspection

Obstruction Removal Infiltration Control

Cleaning

Material of the Cementitious Lining Work Requirements

Wall Thickness Design

Centrifugally Cast Concrete Pipe (CCCP) Installation

Submittals

Permits

Safety and Environmental

Special Invoice and Billing Instructions

Pre-Service Meeting

Contractor’s Representative

Strategic Environmental Management Program (SEMP) requirement

Item 1 – Installation of A Lining for Thirty-Six (36) Inch CMP With One (1) Inch of Pl 8000 On

SR 2016

Item 2 – Installation of A Lining for Thirty (30) Inch CSCP With One (1) Inch of Pl 8000 On

SR1018

Item 3 – Mobilization/Demobilization for Thirty-Six (36) Inch CMP on SR 2016

Item 4 – Mobilization/Demobilization for Thirty (30) Inch CSCP on SR1018

ATTACHMENTS

Attachment A, Contractor's Representative

Attachment B, Confirmation of Service Form, OS-501

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GOVERNING SPECIFICATIONS

The purpose of this Invitation for Bid is to procure a Contractor to perform work to repair a pipe culvert by the installation of a cementitious lining centrifugally cast in place for the waterproofing, sealing, structural reinforcement and corrosion protection of a seventy (70) linear feet of thirty-six (36) inch existing corrugated steel culvert pipe located at Baltimore Pike (SR

2016) between North Ave. & Bishop Ave in Springfield Township, Delaware County and of a one hundred twenty eight (128) linear feet of thirty (30) inch existing corrugated steel culvert pipe located at Ardmore Ave (SR 1018) between Tunbridge Rd. & Golfhouse Lane in Haverford

Township, Delaware County. The centrifugally cast concrete pipe (CCCP) liner should extend over the specified length forming a continuous concrete pipe within a pipe. A Bi-Directional

Spin Caster shall be used.

This is a pilot program and the Contractors must use the specified materials and process or they will be determined to be non-responsive.

Contractor must be certified by the materials manufacturer AP/M Permaform.

The contractor will engineer the repair for the depth, diameter, shape, traffic loading, groundwater pressures and condition for this pipe segment.

The apparent low bidder, who is determined to be both responsive and responsible, will be awarded a Purchase Order.

The Project Engineer will be known as the Project Manager.

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

The material composition requires that no more than 5% fly ash and references the following

ASTM standards which are made a part hereof by such reference and shall be the latest edition and revision thereof. In the event there are found to be conflicting requirements between this specification and these referenced documents, this specification will govern.

1. ASTM C-109 Standard Test Method for Compressive Strength of Hydraulic

Cement Mortars

2. ASTM C-157 Modified Standard Test Method for Length Change of Hardened

Hydraulic Cement Mortar and Concrete

3. ASTM C-293 Standard Test Method for Flexural Strength of Concrete (Using

Simple Beam with Center-Point Loading)

4. ASTM C-309 Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete

5. ASTM C-403 Standard Test Method for Time of Setting of Concrete Mixtures by

Penetration Resistance

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6. ASTM C-469 Standard Test Method for Static Modulus of Elasticity and

Poisson's Ratio of Concrete in Compression, with special attention and adherence to the following: The Modulus of Elasticity should be no greater than 5,000,000 psi. (To avoid overly brittle liner)

7. ASTM C-496 Standard Test Method for Splitting Tensile Strength of Cylindrical

Concrete Specimens

8. ASTM C-882 Standard Test Method for Bond Strength of Epoxy Systems Used with Concrete by Slant Shear

9. ASTM C-666 Standard Test Method for Resistance of Concrete to Rapid

Freezing and Thawing

10. ASTM C-1090 - Standard Test Method for Measuring Changes in Height of

Cylindrical Specimens of Hydraulic-Cement Grout 0 change in 28 days. (Eliminates concern over shrinkage)

11. ASTM D-4783 Standard Test Methods for Resistance of Adhesive Preparations in

Container to Attack by Bacteria, Yeast, and Fungi (Modified)

CONTRACT VALIDITY PERIOD

This service is for a one (1) year period. Refer to the Terms and Conditions for renewal options.

OPTION TO EXTEND

Refer to the Terms and Conditions for extension options.

ESTIMATED QUANTITIES

All quantities are estimated and the Department reserves the right to increase or decrease these quantities based upon need.

FLOW CONTROL

Contractor, when required, shall provide for the flow of water around the culvert where the rehabilitation is located. The bypass shall be made by damming the line at the upstream end and diverting the flow into an adjacent pipe barrel or by pumping.

TV INSPECTION

Contractor will perform an inspection of pipeline using an experienced person trained in locating breaks and obstacles by closed-circuit television. The interior of the pipeline shall be carefully inspected to determine the location of any conditions which may prevent proper installation, and it shall be noted so that these conditions can be corrected. A videotape and suitable log shall be kept and given to the Department after completion of work.

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OBSTRUCTION REMOVAL

It shall be the responsibility of the Contractor to clear the line of obstructions such as solids, dropped joints, roots or collapsed pipe that will prevent installation of the liner. If an internal inspection reveals an obstruction that cannot be removed by conventional cleaning equipment, then the Contractor shall notify the Project Manager. The Project Manager may delete the work, or instruct the Contractor to make a point repair excavation to remove or repair the obstruction.

Such excavation shall be approved in writing by the Project Manager and will be incidental to this work.

INFILTRATION CONTROL

Contractor shall patch holes and fill voids in and around existing pipe as required by the project manager. Areas of water seepage in the existing pipe shall be sealed off using an approved method recommended by the project manager. Pools of water shall be removed; however, a dry surface is not required.

CLEANING

PennDOT will be responsible to remove all debris from the existing pipe. The interior surface shall be cleaned with a high-pressure water-blast sufficient to remove all laitance and loose material and flush debris from the pipe. Upon final inspection by the contractor and PennDOT the pipe shall be free of sand, dirt and all other laitance that may impede the placement of the lining material.

MATERIAL OF THE CEMENTITIOUS LINING WORK REQUIREMENTS

(A) Invert Repair Mortar

The material used in the repair of the missing or deteriorated pipe invert shall be an ultra-high strength, high build, abrasion resistant and corrosion resistant mortar, based on advanced cements and additives including rust inhibitors. This material shall be

PERMACAST PL-12,000. It shall be mixed with the appropriate amount of water to create a self-consolidating free flowing material that develops a high 24-hour compressive strength and adhesion.

The finished, hardened material shall be dense and highly impermeable; the result of a complex formulation of mineral, organic and densifying agents and sophisticated chemical admixtures. Graded quartz sands shall be used to enhance particle packing and further improve the fluidity and hardened density. The composition shall possess excellent thin-section toughness, a high modulus of elasticity in flexure and strong self-bonding capability.

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Physical Properties

Set Time at 70 °F ASTM C-403

Initial Set Approx. 150 minutes

Final Set Approx. 240 minutes

Flexural Strength ASTM C-293 28 day’s min.1200 psi

Compressive Strength ASTM C-109

24 hours 5,000 psi

28 days 11,500 psi

Split Tensile Strength ASTM C-496 700 psi

Shear Bond ASTM C-882 1,720 psi

Modulus of Elasticity ASTM C-469

28 days min. 3.48 106 psi

Freeze Thaw ASTM C-666 300 Cycle Pass

(B) Pipe Lining Mortar

The pipe lining material shall be a high strength, high build, abrasion resistant and corrosion resistant mortar, based on advanced cements and additives. When mixed with the appropriate amount of water, a paste-like material which can be sprayed, cast or pumped into areas ¼ inch and larger shall be obtainable. The pipe lining material shall be the PERMACAST PL-8,000 material.

The hardened, finished liner shall be a dense and highly impermeable pipe within a pipe.

The above stated performance shall be achieved by a complex formulation of mineral, organic and densifying agents and sophisticated chemical admixtures including rust inhibitors. Graded quartz sands are to be used to enhance particle packing and further improve the fluidity and hardened density. The resultant composition shall possess excellent thin-section toughness, a high modulus of elasticity in flexure and strong self-bonding capabilities. Fibers are to be added as an aid to the centrifugal casting process, for increased cohesion and to enhance flexural strength. Additional additives shall be incorporated that enhance the autogenous healing process and this characteristic shall be documented.

Per ASTM C-76, in no case, however, shall the proportion of Portland cement, blended with hydraulic cement, or a combination of Portland cement and supplementary cementing materials, be less than 470 pounds per cubic yard. No products containing more than 10% fly ash shall be considered.

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The water content shall be adjusted to achieve consistencies ranging from plastic to modeling clay. The lining mortar shall be capable of being cast against soil, metals, wood, plastic or other normal construction materials. Despite its workability, the mortar shall have excellent wet adhesion and not sag or run after placement.

The physical properties of the lining mortar shall be as follows:

Physical Properties

Set Time at 70 °F ASTM C-403

Initial Set Approx. 150 minutes

Final Set Approx. 240 minutes

Flexural Strength ASTM C-293

24 hours min. 1200 psi

28 days min. 1,530 psi

Compressive Strength ASTM C-109

24 hours 4,000 psi

28 days 10,000 psi

Modulus of Rupture 28 days Min 1,340 PSI

Split Tensile Strength ASTM C-496 835 psi

Shear Bond ASTM C-882 2,900 psi

Modulus of Elasticity ASTM C-469 28 days Not to exceed 5.26 106 psi

Chloride Ion Penetration ASTM C-1202 Less than 50 Coulombs

Freeze Thaw ASTM C-666 300 Cycle Pass

WALL THICKNESS DESIGN

The wall thickness design shall be based upon the compressive strength as well as the bending strength of the liner material. The design loading shall be the sum of any changes in the cover depth after the liner’s installation, the appropriate highway truck loading for the culvert pipe, taking into account, the type of soil used for the road’s fill and the type of pavement structure

(rigid or flexible). The calculated minimum finished thickness of the liner shall be based on a maximum possible crack width of 0.0625-inches with a factor of safety of 2.0.

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The Liner thickness shall be applied to the thickness specified by the engineer but at no point shall it be less than the required minimum of ½-inch. For structural plate culvert materials, the cover over the projecting bolts shall be a minimum of ½-inch, making the minimum applied thickness for these culverts 1.0-inches. This thickness is to be measured from the I.D. of the pipe, or top of the inward corrugation’s crest. As Per ASTM A979 this thickness is to be measured from the I.D. of the pipe, or top of the inward corrugation’s crest.

CENTRIFUGALLY CAST CONCRETE PIPE (CCCP) INSTALLATION

1. Equipment

Mortar mixers, compressors and pumps are standard commercial models. The high-speed, rotating applicator device is used to provide a densely-compacted liner of uniform thickness and thorough coverage.

2. Mixing

The Contractor shall combine 50 pounds of the packaged dry mix with the

Manufacturer’s specified amount of potable water with mixing to be accomplished with a high-speed shear type mixer until proper consistency is obtained. The Contractor shall continue to agitate the mortar to prevent thickening beyond the desired fluidity. The working time is approximately 30 minutes depending upon the ambient conditions.

3. Application

The Contractor shall position the high pressure bi-directional rotating casting applicator within the culvert pipe as required by the Manufacturer and commence pumping the mortar. As the mortar begins to be centrifugally cast evenly around the interior, the

Contractor shall retrieve the applicator head at the best speed for applying the thickness that has been specified. The applicator must provide for a densely-compacted material. If the mortar flow is interrupted for any reason, the Contractor shall arrest the retrieval of the applicator head until the mortar flow is restored. Throughout the application process the Contractor shall verify the thickness using an appropriate tool. Mortar / material

MUST be specifically designed for the horizontal pipelining process / CCCP and show

10 years of experience as manufacturer of said process and equipment.

4. Hot Weather Application (Above 80°F)

The Contractor shall not apply the mortars when the ambient air and/or surface temperature of the culvert pipe is 100° F or higher. Shade the material and prepared the surface to keep it cool.

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To extend the working time of the mortar when the ambient air temperature is 80°F or higher, but below 100°F, the Contractor is advised to combine the mortar mix material with cool or ice-cooled water. When working at these elevated temperatures, the

Contractor shall make certain that the substrate is saturated surface-dry (SSD) before the mortar lining application begins.

5. Cold Weather Application (Above 45°F):

The Contractor shall not apply the mortars when ambient air temperatures are expected to fall below 45°F within 72 hours of placement. Both the ambient air and substrate temperatures must be at least 45°F at the time of placement.

Low substrate and ambient air temperatures will slow down the rate of set and strength development. At temperatures below 65°F, the Contractor is advised to warm the material, water, and substrate. Properly ventilate the area when heating. Protect the new liner from freezing.

6. Curing/Finishing

The Contractor shall use an ASTM C309 conforming curing compound such as 1315

Sealer or other approved equal.

SUBMITTALS

All submittals shall conform to the requirements in this and other sections of the Statement of

Work through the course of this work. If not required elsewhere, the following minimum submittals shall be required:

1. Reference submittals

Contractor certification

Lining System certification; including third-party validation of in place performance data shall be provided prior to award and/or beginning of the project Mortar / material MUST be specifically designed for the horizontal pipelining process / CCCP and show 10 years of experience as manufacturer of said process and equipment.

Contractor must be certified by the manufacturer prior to beginning any project with regards to this specification and/or Statement of Work

2. Materials data submittals

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Repair mortar material; including technical data sheet

Contractor shall provide an Engineering Design Guide upon request to prove the authenticity of calculations. In addition, a certified engineer’s stamp will be required to approve the final design.

Lining mortar material; including technical datasheet and third-party testing completed.

3. Materials Handling

The bags of the mortar materials shall be stored in a cool, dry location until the

Contractor is ready to use the material.

4. Quality Assurance and Acceptance

A minimum of two test cubes of the mortar material shall be taken randomly as directed by the inspector at owner’s expense to verify strengths. Thickness can be verified with a wet gage at any random point of the new interior surface. Any areas found to be thinner than the specified minimum shall immediately receive additional material. Visual inspection should verify a leak-free, uniform appearance.

PERMITS

PennDOT’s responsible to acquire building permits for work that requires such permitting.

Contractor will comply with all State and Local Laws and Permits.

CHARACTER OF WORKERS AND EQUIPMENT

Contractor shall at all times, employ sufficient labor and equipment for performing the work.

Contractor shall only employ competent and efficient employees that is describe in this specification.

Whenever, in the Departments Representative’s opinion, any person is unfit to perform the task, does the work contrary to instructions, or exhibits improper conduct, the Contractor shall not employ the person again for work on this project without written permission of the County

Equipment Manager or his/her designee.

Contractor shall furnish the type, condition, and quantity of equipment that meets the qualifications necessary for the proper execution of the work within the specified contract time.

Contractor shall maintain the equipment described in this specification in good condition, subject to acceptance, before and during use, in connection with the project.

The Contractor is responsible for supplying all materials, to complete work within the specified location.

SAFETY AND ENVIRONMENTAL

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The Contractor shall be well-informed of the latest Department of Environmental Protection

(DEP) safety regulations and OSHA regulations when entering confined areas. When working in confined areas Contractor will insure that all precautions are taken as required by these regulations.

All traffic control, if needed, will be supplied by the Department.

SPECIAL INVOICE AND BILLING INSTRUCTIONS

Upon the completion of service, the contractor will complete a Confirmation of Service form

(OS-501) (Attachment B) and compile a billable summary report containing all the information needed to invoice for the work. The OS-501 and the Billable Summary Report will be mailed to the County Manager or designee in the County in which the work is being performed. The

County Manager or designee has confirmed work performed as required at the final inspection and call the vendor to correct any mistakes on billing.

The Contractor shall submit a commercial invoice to the address shown on the first page of the

Purchase Order. The Contractor's invoice must include the date of service, a description of the work performed, and all other information as required by the Terms and Conditions including purchase order number, item numbers, and unit prices.

PRE-SERVICE MEETING

After the purchase order is issued the Department Representative will contact the Contractor to notify the Contractor of the time and location of the Pre-Service Meeting. The Contractor’s

Representative is required to attend this meeting.

CONTRACTOR’S REPRESENTATIVE

The Contractor shall assign one of its employees to serve as the Contract Representative (i.e. the individual who will be the Contractor’s sole contact person designated to interact and communicate with the Department on all contract-related activities and issues. The assigned

Contractor Representative must be fluent in English.

The Contractor shall provide the Department with the Contract Representative's contact information including name, title, cell phone number, and email address.

The Contract Representative shall have the authority to make all contract-related decisions. The

Contractor shall notify the Department immediately, in writing, of any change involving the individual serving in this position.

The Contractor must complete and submit the attached Contractor Representative Information

Form (Attachment C) to the Purchasing Agent within three business days of notice of apparent low bidder status.

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STRATEGIC ENVIRONMENTAL MANAGEMENT PROGRAM (SEMP) REQUIREMENTS

PennDOT has implemented a Strategic Environmental Management Program (SEMP) which complies with the ISO 14001:2004 standard. As part of SEMP, the Commonwealth of Pennsylvania has established a Green Plan Policy that can be found at:

www.dot.state.pa.us

Type in 'SEMP' in search field, and select the magnifying glass.

Then select ‘Pollution Prevention' and review site.

The Green Plan Policy is designed protect the environment, conserve resources and comply with environmental laws and regulations.

The Contractor shall ensure that its personnel are aware of the Commonwealth of Pennsylvania’s commitment to protecting the environment, are properly trained about the environmental impacts of their work and are competent (through appropriate work experience, job training or classroom education) to perform the work that they do.

FINAL INSPECTION

After the contractor notifies the county that the work was completed, PennDOT County Manager or designee will contact the Contractor of the time and date of the inspection. The Contractor’s

Representative is required to attend this meeting.

ITEM 1 – INSTALLATION OF A LINING FOR THIRTY-SIX (36) INCH CMP WITH ONE

(1) INCH OF PL 8000 ON SR 2016

ITEM 2 – INSTALLATION OF A LINING FOR THIRTY (30) INCH CSCP WITH ONE (1)

INCH OF PL 8000 ON SR1018

DESCRIPTION – This work will consist of the installation of linings for both a thirty-six (36) and thirty (30) inch CMP that will include labor, materials, tools and equipment.

SERVICE-This work will be in accordance with this statement of work and to complete the installation in place, including but not limited to labor, equipment, material, tools, excavation, cleaning, pipe liner, liner reinforcement, fittings, seals, specified joint system, filling embankment voids, backfilling, and restoration.

Travel time to the job site is considered incidental to the cost of the item and no additional payment will be made.

MEASUREMENT AND PAYMENT – Each http://www.dot.state.pa.us/

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ITEM 3 – MOBILIZATION/DEMOBILIZATION FOR THIRTY-SIX (36) INCH CMP ON SR

ITEM 4 – MOBILIZATION/DEMOBILIZATION FOR THIRTY (30) INCH CSCP ON SR1018

DESCRIPTION - This work will consist of Mobilization/Demobilization of all equipment, labor, material, and tools for this service.

SERVICE – This is to perform the Mobilization/Demobilization for the work describe in this statement of work. Any costs associated with Mobilization/Demobilization and other items such as; required licenses, permits, insurance, and communication devices as directed by PennDOT for the duration of this purchase order.

Travel time will NOT be paid to or from the jobsites.

MEASUREMENT AND PAYMENT – Each