Technical_Specifications.pdf

TECHNICAL SPECIFICATIONS

TS 1 GOVERNING DOCUMENTS

TS 2 COMPLETION DATES AND LIQUIDATED DAMAGES

TS 3 HOLIDAYS WHEN WORK IS NOT PERMITTED

TS 4 WORK SCHEDULE SUBMITTAL

TS 5 CONSTRUCTION WORK HOURS

TS 6 COOPERATION WITH UTILITIES

TS 7 EROSION CONTROL SUBMITTAL

TS 8 LIMITATIONS OF OPERATIONS

TS 9 EXISTING CONDITIONS

TS 10 PROTECTION OF EXISTING STRUCTURES, PIPE, AND YARD TILE

TS 11 RIGHT-OF-WAY CLEARING

TS 12 MAINTAINING TRAFFIC

TS 13 ROAD CLOSURE NOTIFICATION

TS 14 MATERIAL TESTING

TS 15 OPEN BURNING OF NATURAL GROWTH

TS 16 STREET CLEANING

TS 17 PROJECT CONTRACT DOCUMENTS

TS 18 SAW CUTTING

TS 19 COORDINATION WITH OTHER PROJECTS

TS 20 CONCRETE SIDEWALK, 4”

TS 21 GRADING BEHIND WALK

TS 22 MATERIAL ACCEPTANCE

TS 23 FINAL CLEANUP

TS 24 STANDARD DRAWINGS

TS 25 CONSTRUCTION NOISE

TS 26 SOD AND LANDSCAPE MAINTENANCE AND WARRANTY PERIOD

TS 27 RIGHT OF ENTRY

TS 28 PLAN MEASURED QUANTITIES

TS 29 EXCESS MATERIAL - DISPOSAL

TS 30 COORDINATION WITH CITY SERVICES

TS 31 IMPRINTED CONCRETE

TS 32 FORMLINERS

TS 33 MASONRY COATING

TS 34 CONCRETE STAINING

TS 35 MOCK UPS

TS 36 CURE AND SEAL

TS 37 ARCHITECTURAL FINISHES

TS 38 SHOP DRAWING REVIEW

TECHNICAL SPECIFICATIONS

TS 1 GOVERNING DOCUMENTS

The applicable sections of the following documents shall apply except as modified elsewhere herein:

1) Indiana Department of Transportation (INDOT) Standard Drawings and Standard

Specifications – Latest Edition.

2) INDOT Supplemental Specifications

3) City of Carmel - Standards for Construction of Required Improvements

Unless otherwise specified within the Contract Documents, whenever any specification, standard, reference material, manual or other similar document is incorporated by reference into any of the contract documents, it shall be deemed to be the latest edition of said item including any and all supplemental addendum, which was in effect on the date of the bid opening for this project.

TS 2 COMPLETION DATES AND LIQUIDATED DAMAGES

Substantial Completion: May 23, 2025 Final Project Completion: June 30, 2025

The Substantial Project Completion Date for Phase is based on a Notice to Proceed by the OWNER given on or before DATE for the construction of Specified work. All road closures must meet the requirements of TS 14.

All contracts shall be calendar day contracts and shall include all days in the number of days provided for completion including weekend days and holidays, even if these days are identified as non-work days within the contract documents.

Substantial Completion is defined as set forth in Article 1 of the Standard General Conditions.

Substantial Completion is further defined to include the completion of the HMA Surface and permanent pavement markings.

Liquidated damages of $1,000 per day shall be assessed for every day beyond the agreed upon Substantial Completion and Final Completion date, listed above, that the project does not meet the completion requirements.

TS 3 HOLIDAYS WHEN WORK IS NOT PERMITTED

The CONTRACTOR may not perform work on the following days unless requested and approved or permitted by the ENGINEER or OWNER:

Sundays (unless otherwise approved by City Engineer)

New Years Day Memorial Day Independence Day Labor Day Thanksgiving Day Christmas Day

TS 4 WORK SCHEDULE SUBMITTAL

The CONTRACTOR shall provide a critical path work schedule for the entire project with the Post-Bid documents. This schedule shall be submitted to and approved by the ENGINEER prior to the start of construction and shall be updated as necessary. No work will be allowed until this schedule is submitted and approved; however, the CONTRACTOR will not be granted any time extension due to this delay.

TS 5 CONSTRUCTION WORK HOURS

The CONTRACTOR shall perform all construction activities between the hours of 9:00 am and 5:00 pm unless receiving prior approval from the ENGINEER. Lane closures on Keystone Parkway closures may only occur between the hours of 9:00 pm and 7:00 am unless receiving prior approval from the ENGINEER.

No lane restrictions on Keystone Parkway will be allowed on holiday weekends from 7 a.m. on the last business day prior to a holiday until 9 p.m. on the first business day following a holiday weekend. Normal business days are Mon. through Fri. The Engineer may impose additional lane closure hour restrictions for special events and/or weather conditions.

Lane closure signs shall not be erected any earlier than an hour before the starting hours listed above. Also, these signs shall be taken down within one-half hour after the closure is removed. In addition, all lane closures shall be removed during adverse weather conditions as determined by the Engineer. No barricade or other traffic control device may be positioned in a lane outside the hours shown in the table.

TS 6 COOPERATION WITH UTILITIES

It shall be the CONTRACTOR’S responsibility to have all utilities located before construction in a particular area. The CONTRACTOR shall coordinate with all utilities in the adjustment of these facilities and in order to avoid damage to any facilities. Damage to any of the existing public utility facilities during the project caused by the CONTRACTOR'S operations or equipment, shall be repaired by the CONTRACTOR at no expense to the Contract. This includes sewer, water, gas, electric, telephone, cable, etc.

and includes facilities within proposed storm sewer trenches. However, if any utilities are exposed and must be relocated for construction to continue, this work shall be performed by the utility, or the CONTRACTOR shall be reimbursed at an agreed upon price to perform such work. If the utility performs the work, the CONTRACTOR shall coordinate with the utility in order to expedite said work.

TS 7 EROSION CONTROL SUBMITTAL

Prior to commencing work, the Contractor shall prepare and submit to the Engineer for approval an erosion control plan that includes, at a minimum, the following items:

1. Locations of all proposed soil stockpiles, borrow areas, or disposal areas.

2. Locations of all proposed vehicle and equipment parking areas, vehicle and equipment fueling locations, placement of the site construction trailers, location of all on-site batch plants, and designated concrete truck washout areas.

3. Proposed construction sequence and phasing of erosion control measures.

4. Location of all construction entrances where vehicles and equipment will enter and exit the site.

5. Material handling and spill prevention plan, which shall include a list of expected materials that may be present on the site during construction operations, as well as a written description of how these materials will be handled to minimize the potential that the materials may enter storm water runoff from the site.

6. Statement that the erosion control measures for the project will be inspected, at a minimum, on a weekly basis and within 24 hours of every ½ inch rain event.

The Engineer will submit the Erosion Control Plan to:

soil.water@hamiltoncounty.in.gov and

Mark McCauley, Resource Conservationist Hamilton County SWCD 1717 Pleasant Street Noblesville IN 46060

(317) 773-2818 mark.mccauley@hamiltoncounty.in.gov

Ground disturbing activities shall not commence until the Hamilton County Soil and Water Conservation District (SWCD) has reviewed and approved the Erosion Control Plan.

Method of Measurement. This work will not be measured for payment.

Basis of Payment.

This item includes all costs required to prepare the Erosion Control Plan as described. Preparation of the Erosion Control Plan will not be paid for directly, but such cost shall be included in the cost of the other pay items.

Temporary erosion control measures will be paid for with the pay items included in the itemized bid. No direct payment will be made for notifications or preparation of amendments to the SWPPP, but such cost shall be included in the cost of other pay items.

TS 8 LIMITATIONS OF OPERATIONS

When in the judgment of the OWNER, the CONTRACTOR has obstructed or closed a greater portion of the work than is necessary for proper construction, or is carrying on operations to the prejudice of the work already started, the OWNER may require the CONTRACTOR to finish that portion of the work which is in progress before any additional portions are started. Work shall be conducted with minimum inconvenience to traffic.

Except as hereafter specified, no loads of material for any construction shall be dispatched from cars or plants so late in the day that it cannot be placed, finished and protected within the Specification limits and provisions in the daylight hours of that same day.

TS 9 EXISTING CONDITIONS

The CONTRACTOR shall verify the elevations and measurements of all points where new construction is to match existing conditions prior to the commencement of any construction activities. No direct payment shall be made for this work but the cost thereof shall be included in the costs of the other items of the contract.

TS 10 PROTECTION OF EXISTING STRUCTURES, PIPE, AND YARD TILE

On this project there are existing storm drainage and sanitary sewer structures that are to remain in place. The CONTRACTOR shall take care that these structures are not damaged.

If any of these structures are damaged, the CONTRACTOR shall be required to repair them at his own expense.

TS 11 RIGHT-OF-WAY CLEARING

No Clearing of Right-of-Way is anticipated on this project.

TS 12 MAINTAINING TRAFFIC

Maintenance of traffic shall be the sole responsibility of the CONTRACTOR. Access and traffic to all businesses, residences, for all postal deliveries and all emergency traffic such as police, fire, medical, etc. within the project limits, shall be maintained at all times.

Unless otherwise directed, or permitted, the work specified shall be arranged and prosecuted in accordance with all applicable provisions of Sections 104.04, 107, 801 and as set out in INDOT Standard Specifications.

The names and telephone numbers of the CONTRACTOR'S superintendent and one other responsible employee shall be furnished at the pre-construction conference. These employees shall be on call and available at nights, weekends, or during other non-working periods to repair or replace all traffic control devices, which may become damaged or inoperative.

Two lanes of travel shall be maintained in each direction of Keystone Parkway at all times during construction. A maintenance of traffic plan for any lane restrictions or sidewalk closures shall be developed by the CONTRACTOR. The CONTRACTOR shall submit the maintenance of traffic plan to the ENGINEER 14 days prior to implementation for review and approval. Signage for the maintenance of traffic plan shall be maintained at all times during construction.

At a minimum, 48-hours notice of any lane restriction shall be provided to the Owner. In the event, that multiple, consecutive days of restriction are required (subject to the hours indicated in this Technical Specification), this notice shall include the number of consecutive days the lanes or sidewalks shall be restricted.

In the event the CONTRACTOR desires not to perform traffic maintenance in accordance with the sequence of operations as called for within the Contract Documents, CONTRACTOR shall submit his alternate plan in writing to the ENGINEER and obtain acceptance at least 1 week prior to the commencement of any construction activities.

Open trenches, if permitted by the ENGINEER, shall be spanned per current OSHA requirements and with the concurrence of the ENGINEER.

Any trenching areas adjacent to a sidewalk shall be barricaded.

The CONTRACTOR shall be prepared to have all construction signs erected for the project as specified by the ENGINEER.

All temporary traffic control devices not listed separately or adjustments, labor, materials, etc., necessary for the maintenance of traffic as called for within the Contract Documents, or as permitted by the ENGINEER shall be included in the lump sum price for ‘Maintenance of Traffic’, as set out in the itemized proposal.

TS 13 ROAD CLOSURE NOTIFICATION

The CONTRACTOR shall post an advance closure construction sign that notifies the traveling public of a road closure and the duration of the closure at least 14 days in advance of the road closure, unless otherwise approved by the ENGINEER. The advance closure construction sign legend shall generally state that the named road or street will be closed on or after a specific date for a number of days. The signs shall be placed as shown on the plans or as directed by the ENGINEER.

The advance closure construction signs shall be in accordance with Section 801 of the INDOT Standard Specifications and paid for at the contract unit price per each for

Construction Sign, A.

TS 14 MATERIAL TESTING

The ENGINEER will be responsible for compaction testing and concrete testing for the project. The CONTRACTOR shall be responsible for lime stabilization proctor testing.

The cost of material testing shall be included in the cost of other pay items. Asphalt materials shall be provided as shown on the plans; certifications and acceptance shall be in accordance with Section 402 of the INDOT Standard Specifications.

TS 15 OPEN BURNING OF NATURAL GROWTH

Open burning of natural growth is not permitted on this contract.

TS 16 STREET CLEANING

The CONTRACTOR shall provide effective dust control throughout the project. Loader-mounted pick-up, power sweepers, or other types of pull type models shall be used for street cleaning. Street cleaning shall also be performed prior to the pre-final meeting as directed by the ENGINEER.

Street cleaning will not be paid directly, but shall be included in the cost of various items of the contract regardless of the amount of times this operation is reasonably requested.

Naturally occurring conditions, out of the control of the owner, that cause more dust control than normal shall not be a valid reason for request of payment for dust control.

TS 17 PROJECT CONTRACT DOCUMENTS

The documents related to the proposed improvements of this project include:

1. The Agreement and any exhibits thereto (sometimes referred to as “Contract”).

2. All Addenda issued prior to receipt of Bid proposals, whether or not receipt thereof has been acknowledged by CONTRACTOR in its Proposal.

3. Instructions to Bidders.

4. Notice to Bidders Invitation.

5. Contractor’s Itemized Proposal and Declarations (including Documentation accompanying the Bid and any post-Bid Documentation submitted prior to the Notice of Award).

6. Notice to Proceed.

7. Performance, Payment and Maintenance Bonds.

8. The Standard General Conditions.

9. The Additional Requirements Section.

10. Any supplemental conditions.

11. The City of Carmel Standard Technical Specifications.

12. Supplemental Technical Specifications.

13. The Drawings.

14. All other documents defined as Contract Documents in any of the above listed documents.

TS 18 SAW CUTTING

In all areas where proposed construction matches existing conditions, full depth saw cutting shall be required.

No direct payment will be made for saw cutting but the cost thereof shall be included in the costs of the other items.

TS 19 COORDINATION WITH OTHER PROJECTS

The CONTRACTOR shall coordinate construction with the activities of other projects in the area. Adjacent activities and maintenance of traffic shall be coordinated with the other projects. Possible projects requiring coordination include:

106th Street and Westfield Boulevard Closure INDOT US31/I-465 Ramps Reconstruction

TS 20 CONCRETE SIDEWALK, 4”

This work shall consist of the installation of concrete sidewalk at the proposed locations or as directed by the ENGINEER in accordance with Section 604 of the INDOT Standard Specifications and Carmel Standard Drawings 10-18 and 10-19. All concrete sidewalks shall be placed on prepared compacted material in accordance with INDOT Specification 207.02.

The costs for concrete, excavations, labor, equipment, backfill material, joint placement, any bed course material used for leveling, preparation of a compacted subgrade, and any necessary incidentals with concrete sidewalk installation shall be included in the cost of ‘Sidewalk, Concrete, 4 in.’.

When unsuitable material prevents achieving the desired compaction, these areas shall be excavated and replaced with Compacted Aggregate Base, No. 53 to the desired compaction at the direction of the ENGINEER. The costs for excavation, material, placement, and compaction shall be included in the pay item Compacted Aggregate Base, No. 53.

The costs for removal and disposal of existing sidewalk shall be included in the pay item Clearing of Right of Way unless a specific pay item is included in the itemized proposal.

TS 21 GRADING BEHIND WALK

All grading behind walks and curbs is to be completed as shown on the plans and cross sections or as directed by the ENGINEER. Quantities of earth placement or removal in these areas are included within section volumes; therefore, this work shall not be paid for separately, but the cost shall be included within the item Common Excavation.

TS 22 MATERIAL ACCEPTANCE

All aggregate, concrete, and bituminous materials used for the project shall be produced from an approved source. The Contractor shall submit the names and addresses of the suppliers of these materials for the project to the ENGINEER at the pre-construction conference. Prior to delivery the Contractor shall submit to the ENGINEER a copy of the certification for each material supplier.

TS 23 FINAL CLEANUP

The Contractor shall clean up all areas, including inlets, storm pipes, and streets, within the construction area as well as areas disturbed outside the construction areas at the completion of the project. This work shall be done at the satisfaction of the City of Carmel. The areas disturbed outside of the construction area shall be seeded at no cost to this project.

TS 24 STANDARD DRAWINGS

See City of Carmel Standards/Details. These can be accessed at www.carmel.in.gov at the Carmel Technical Standards and Standard Drawings link in the Construction Trades drop down menu on the Engineering Main Page.

TS 25 CONSTRUCTION NOISE

The CONTRACTOR shall be required to limit construction noise by maintaining his equipment in proper working order, thereby minimizing the effect of construction noise in the project area.

TS 26 SOD AND LANDSCAPE MAINTENANCE AND WARRANTY PERIOD

Prevailing Specifications: INDOT 621

Section 621.10 Watering Sod

Delete the following: Sod shall be maintained for a minimum of four weeks from the time it is laid before being accepted.

And replace with: Sod that is not irrigated permanently shall be watered and maintained for a minimum of 90 days from the time the sod placement for the entire project is complete before being accepted. Any sod that is not accepted at the end of the 90 day watering and maintenance period shall be replaced at no additional cost to the contract and maintained for another 90 day maintenance period and this maintenance period and replacement shall continue until all sod has been accepted.

The 90 day water and maintenance period shall exclude the winter months of

December through March. Therefore, any maintenance days that overlap the winter months as defined herein shall be applied to the following year and beginning on April

1. Irrigated sod shall have the same requirements for the sod only and the actual irrigation system will be covered under the project Maintenance Bond for any deficiencies in the materials or craftsmanship.

Additions to INDOT Section 621:

Any and all supplemental specifications or technical specifications herein or as part of the landscape plans.

Warranty Bond: Upon completion of the installation and initial inspection of any living landscape material, a properly executed Warranty Bond with a surety shall be supplied in the amount of the material being warranted. The intent of the Warranty Bond shall be to permit the final acceptance of the contract and payment of the retainage.

TS 27 RIGHT OF ENTRY

A Right-of-Entry is not needed for this project.

TS 28 PLAN MEASURED QUANTITIES

Item “Common Excavation” and/or “Borrow” shall be measured per plan quantity in the itemized proposal unless otherwise approved by the Owner or Engineer.

TS 29 EXCESS MATERIAL - DISPOSAL

All excess material (waste) shall be removed from the project site. Whether a private or public waste site is utilized, such disposal shall comply with all Federal, State and local ordinances and permit requirements. A copy of all permits obtained or applied for shall be submitted to the ENGINEER prior to the commencement of any construction activities.

TS 30 COORDINATION WITH CITY SERVICES

The Contractor shall coordinate construction activities with each of the City Service Providers listed below. These agencies shall be notified no less than two weeks in advance of any changes to road closures, detours or restrictions.

Carmel Police Department

Major Shane Collins Operations Division 3 Civic Square Carmel, IN 46032 Phone : (317) 571-2500 Email: scollins@carmel.in.gov

Carmel Fire Department

Fire Chief, Joel Thacker Fire Headquarters 2 Civic Square Carmel, IN 46032 Phone: (317) 571-2600 Email: jthacker@carmel,in.gov

Deputy Chief, Lucas Ray Chief of Administration Fire Headquarters 2 Civic Square Carmel, IN 46032 Phone: (317) 571-2600 Email: lray@carmel.in.gov

Carmel Clay Schools

Gary Clevenger Director, Transportation Carmel Clay Schools Phone: (317) 844-9961, Ext 2307 Email: gcleveng@ccs.k12.in.us

Basis of Payment: No direct payment will be made for coordination with City Services. Cost of all coordination shall not be paid for separately, but included in the cost of other items.

TS 31 IMPRINTED CONCRETE

Description:

Work includes imprinted concrete and associated finishes for stained decorative concrete pavement. Concrete intended to receive imprinted patterns and chemical finishes and stains should be in accordance with sections 502, 604, and 705.

Submittals:

Contractor shall submit product data for each product indicated as well as samples for initial selection from manufacturer's full range of color charts. Sample Panels of 2 by 2 feet (610 by 610 mm), shall be provided to demonstrate finish, color, and texture of imprinted concrete and associated finishes. Qualification Data must be provided for Installer and Manufacturer as specified in Quality Assurance Article, including names and addresses of past completed projects, with the associated architects, and owners listed.

Quality Assurance:

Installer must have a minimum of three year's experience with projects of similar scope and quality. The contractor for this work shall be a licensed contractor who has been trained and equipped by imprinted concrete supplier/manufacturer. Products used must be obtained from same source throughout Project. A Preinstallation Conference shall be conducted at project site.

Mock-ups:

Locate at site and obtain approval before start of final work. See Mock-up section in these specifications. Mock-ups shall be minimum 10’ by 10’ (feet) showing representation of each surface type and color in arrangement similar to design intended in the work. Mock-ups must demonstrate range of finishes and workmanship, including joints and sealing procedures.

Approved mock-ups will set quality standards for comparison with remaining work. Contractor must remove mock-ups when work is completed. Approved field samples may become part of the completed work if undisturbed at completion of project.

Construction Requirements:

Deliver materials in original packaging with labels intact and store in clean, dry and protected location, according to manufacturer's requirements. Comply with imprinted concrete and associated finishes’ manufacturer's instructions. Do not install work if air temperature and concrete substrate temperature are not between 45 to 85 deg F before and during installation. In hot weather, install work in early morning or when surfaces are shaded. Keep bagged products out of sunlight. Use cool water; do not use water from hot watering hoses. Protect imprinted concrete and associated finishes from rain for 24 hours. In windy weather, protect adjacent construction from over-spray during application of sealers.

Products:

Color hardener shall be heavy-duty grade, dry-shake type. Water used in concrete must be potable. Stamp Mats shall be semi-rigid polyurethane mats with projected texture and ridged underside capable of imprinting texture and joint patterns to plastic concrete. Stamp mat supplier shall also supply necessary texture skins matching stamp mat textures for texturing areas that cannot be reached with stamping mats. Pigmented-powder antiquing Release Agent (factory-packaged) shall be used. Agent shall be non-fading, (finely-ground, streak free, colored powder -or- liquid) that facilitates release of stamps and texture skins from concrete surface and imparts a secondary accent color. Manufacturer’s standard accessory stamp detailing tools shall be used capable of imprinting joints and dressing stamped joints of stamping pattern. See Architectural Finishes Schedule for approved manufacturer and pattern. Provide and apply manufacturer’s recommended sealer (such as Bomanite Con-Shield or equal) per manufacturer’s recommendations. Sealer will prevent deterioration and spalling from deicing salts used in freeze/thaw conditions as well as increase the abrasion resistance of the work.

Execution:

The area to receive imprinted concrete shall have the sub-grade prepared and compacted as required in concrete specifications. The formwork shall be installed in accordance with concrete specifications and the drawings. The slab reinforcement and thickness shall be as required in concrete specifications. Control joints and/or expansion joints shall be provided in accordance with the drawings and the guidelines established by the American Concrete Institute (ACI). As with any concrete slab, imprinted concrete usually contains construction joints, control joints and expansion joints; the contractor shall advise and work with the Engineer to determine the best location for these joints to minimize the visibility of the joints and to minimize unsightly cracking.

The concrete shall be placed and screeded to the finished grade, and floated to uniform surface using standard finishing techniques. Color Hardener shall be applied evenly to the surface of the fresh concrete by the dry-shake method using a minimum of 60 pounds per 100 square feet.

It shall be applied in two or more shakes, floated after each shake and troweled only after the final floating. Dry release agent shall be applied evenly to the troweled surface prior to imprinting. If liquid release agent is used, apply a liberal coat of liquid release agent to cementitious stampable overlay when set sufficiently to achieve a clean impression. While the concrete is still in its plastic stage of set, the imprinting tools shall be applied to the surface. Accurately align stamp mats in sequence and tamp into cementitious stampable overlay to produce imprint pattern, texture, and depth of imprint, according to manufacturer's instructions. Remove stamps from cementitious stampable overlay immediately. Stamp edges, perimeter of pour and surfaces unable to be imprinted with stamp mat with texture skins. Use stamp tools to imprint grout lines at edges and surfaces unable to be imprinted with stamp mats.

Re-cut existing control joints before cracking occurs, generally within 12 to 24 hours after placement at 70 deg F. Approved curing method shall be applied in accordance with the manufacturer's recommendations immediately after completing the imprinting process. After the initial curing period, the surface of the slab shall be sealed. Apply final coat of sealer uniformly in continuous operation by sprayer according to manufacturer's instructions.

Repair damaged cementitious stampable overlay according to manufacturer's instructions.

Clean spillage and soiling from adjacent construction according to manufacturer's instructions.

Protect cementitious stampable overlay from damage or deterioration until date of Substantial Completion.

Method of Measurement

Imprinted Concrete will be measured by the square foot of concrete imprinted. The area of imprinted concrete will be the width of the imprinting multiplied by the length of the concrete imprinting. The areas of imprinted concrete are to be as shown in the project plans and within the Special Provision “ARCHITECTURAL FINISHES”.

Concrete Pavement will be measured in accordance with section 502.

Concrete Sidewalk will be measured in accordance with section 604.

Concrete in Superstructure will be measured in accordance with section 705.

Basis of Payment

The accepted quantities of concrete imprinting will be paid for at the contract unit price per square foot for imprinted concrete complete in place.

Concrete Pavement will be paid for in accordance with section 502.

Concrete Sidewalk will be paid for in accordance with section 604.

Concrete in Superstructure will be paid for in accordance with section 705.

Payment will be made under:

Pay Item Pay Unit Symbol

Concrete Imprinting ...................................................................................... SFT PCCP, ____ ............................................................................................... SYS Sidewalk, Concrete ...................................................................................... SYS Concrete, C, Superstructure ......................................................................... CYS

The cost of concrete imprinting shall include all labor, materials, and surface preparation required to finish, texture, color, and seal the concrete.

The cost of mock-ups as detailed in this specification will not be paid for directly but included in the cost of concrete imprinting.

TS 32 FORMLINERS

Description

Standard patterned formliners and custom formliners (created to produce certain areas of work) shall be used on this project. Manufacturer’s standard formliners shall be used for Ashlar

Stone pattern (Fitzgerald #16999 Georgia Ashlar) and for Bush-hammered surface texture (where identified in drawings). Custom Formliners shall be used for custom architectural elements such as inset/outset circles (see drawings) and the City of Carmel’s seal. The custom formliners shall be made from a two-component urethane formulation and factory bonded to 0.75” plywood.

Liners shall be available in widths and heights necessary to depict the desired pattern. Formliners shall be for cast-in-place or precast applications.

Formliners shall provide design latitude for precast or cast-in-place application. They shall be re-usable a minimum of 100 times, and turned-over to Engineer upon project completion.

Contractor shall submit Qualification data demonstrating capabilities and experience;

include list of past projects with names and addresses and other contact information for owner and architect/engineer for the project. Formliner manufacturer must submit product information for standard formliner, texture(s) and pattern(s). Shop drawings shall be submitted depicting the custom formliner layouts, coordinated with retaining wall panel supplier and contractor.

A full-scale mock-up is specified in another section; formliners to be used in this project’s work shall be included and used in the construction of that mock-up.

Formliner manufacturer must have 5 years minimum experience making custom liners and with liners formed to mimic stone surfaces. Formliner installer shall have 5 consecutive years minimum experience in textured concrete construction.

Manufacturing tolerances:

Elastomeric formliners shall be manufactured from 100% polyurethane and mold bonded to 0.75” plywood: +/- 1/8 inch (length and width) (Un-bonded: as determined by pattern.) Once attached to the formwork, formliners should be stored on edge to prevent liner damage. They shall be easily attached to most concrete forming systems, including wood, steel, aluminum and fiberglass.

TECHNICAL DATA: ASTM

Shore A Hardness 60-70 D2240 Cast Density, PCF 62-67 Tear Strength, PLI 140-160 D624 Tensile Strength, psi 1300-1600 D638 (D412) Ultimate Elongation 280-330% D638 (D412)

When not in use, formliners should be protected from moisture and sunlight by being elevated off the ground and covered with a tarpaulin. Degradation will affect the life of the liner, and in some cases, cause discoloration of the concrete surface. Avoid surface temperature in excess of 140° F as it may cause permanent thermal distortion and diminish by 70-80% all physical properties of the formliner.

Trimming:

Should trimming of an elastomeric liner be required, the slower the cutting tool used, the easier the liner will be to trim. A crosscut handsaw shall be used; a circular handsaw may not be used. Extreme care should be taken to keep the saw blade from binding or from melting the material. Lubricating the blade with WD-40 during the trim may assist the cut. If the liner is to be butted against a rustication strip or reveal, the blade angle should be set so that the liner is cut at the same angle as the reveal. These operations should be performed with the liner securely clamped to a steady workbench to prevent any “chatter”. Positioning the line of the cut with approximately a 3-degree bow in the liner will also assist the trim. (Proper ventilation practices must be followed when cutting formliner material.)

Attachment to Formwork:

Formliners shall be bonded to 0.75" plywood. Mold-bonding may be used; however, the plywood does not eliminate the need for form system facing. The use of a ganged-forming system is recommended. Formliners can be attached directly to the forming system by screwing or bolting to the face of the liner or through the back of the form using 1/4” diameter fasteners. Fasteners should be placed at 12" centers on all perimeter edges of the formliners and 18”-24” on center throughout the field. When the liners are expected to be removed and reattached to the forming system several times over the life of the liner, attachment from the back of the form should be used to avoid repeated marring of the surface of the liner. Recommended method:

1. Level and square the formwork so that proper alignment of the liner can be made.

Dimensions should be marked so that edges, patterns and joints are square.

2. Working with one sheet at a time, position the form liner against the formwork so that edges, patterns and joints are square.

3. Screw the liner to the formwork with screws spaced approximately 12” on center around the perimeter and 18” to 24” on center throughout the field. Tek drywall screws work well because they are self-drilling and easy to install.

Form Release Agent:

The application of a good quality, reactive-type form release agent prior to the first use and after each subsequent re-use is critical to the performance of the formliner. Clean the formliner after each pour to remove any loose debris. The form release agent must be worked into the surface of the liner to ensure adequate coverage. Release agents should be sprayed on the liner as close to the time of concrete placement as possible. Minimize exposure to contaminants, dust, etc.

A water-based release agent works well for either single-use or multi-use plastic or extended-use elastomeric urethane formliners. (Do not use solvents or petroleum-based form release agents as such types attack both plastic and elastomeric urethane liners.) It is recommended that the form release agent be tested against a small area on the form side of the liner for compatibility. Should the test area become tacky, the release agent is not compatible with the liner material and cannot be used. Consult with form release manufacturer for specific information, such as coverage rates, drying time and compatibility.

Formliners Used in Cast-In-Place Concrete:

Most urethane formliners cannot withstand a rate of pour in excess of 600-750 psf.

Generally, the more texture or relief on the formliner, the slower the concrete must be placed. If a plasticizer is used, the rate of pour may have to be reduced to limit form pressure. Placement should be in two-foot lifts with no horizontal movement to avoid flow lines in the finished surface.

To avoid cold joints, architectural concrete placement should never be stopped part way up the pattern.

Formliners Used in Pre-Cast Concrete:

A test pane using the selected material should be poured simulating actual conditions and procedures, including: pour rate, size of panel, tie holes, reveals, joints in formliner panels, etc.

Actual construction should proceed using the same method and materials throughout the project.

Stripping Procedures:

If possible, forms should be stripped within twenty-four hours of concrete placement. This is important because:

1. The heat of concrete hydration can degrade formliner material over an extended period of time and can cause sticking.

2. Concrete may darken the longer the liner is in contact with the formliner surface.

3. Formliner life can be lengthened.

Formliners should always be stripped with an equal time interval between lifts in order to have consistent concrete finish between multiple pours. Formwork should always be stripped at 90-degree angles to the form if possible. Fractured textures will require special care to avoid breaking off fins from the concrete or the liner. A low profile pattern will be easier to strip than a high profile pattern. Allow extra time for stripping formwork as formliners are part of the job requirement. Avoid rotating the forms away from the wall or panel when stripping begins.

Rotation could allow the formliner to become wedged into the concrete damaging the joints or raised portions on the formliner. Strip forms evenly with equal force applied at the midpoints and bottom sections of the forms. Pull forms directly away from the wall and/or panel. This procedure may take additional time to accomplish, but results in less liner damage.

Clean and apply form release agent on all liners prior to the first pour and after each subsequent pour. The form release agent must be mopped on so all surfaces are thoroughly coated. Clean formliners with a stiff brush after each pour to remove any concrete laitance and re-apply the form release agent.

Architectural concrete jobs are critical. As such, attention to detail becomes critical for satisfactory results. It is recommended that proper planning and execution be followed.

Replacing Formliner:

Improper formliner preparation, such as poor cleaning between pours, type of release agent chosen, application of release agent, jobsite handling, storage and exposure to sunlight can all contribute to lessen the life expectancy of architectural formliners. At times formliner damage is not repairable in the field and most field repairs are temporary measures. Repeating repair work is normal after each pour if damage to liner is great and repair is extensive. Replacement of formliner material is then necessary at no cost to the Engineer.

Ownership of Formliners

Any specialty formliners created specifically for this project (City Seal, 2’-0” Circles, 4’-

0” Circles) shall become the ownership of the City of Carmel. Upon completion of project, Contractor shall provide all specialty formliners to Engineer. Specialty formliners shall not be used on any other projects without written approval from the Engineer.

Method of Measurement:

Formliners on wall panels will be measured by the square foot of wall panels installed.

Formliners along bridge and other concrete railing will be measured by the linear foot of concrete rail per face being formlined.

The specialty City Seal formliner will be measured per each.

Basis of Payment:

Formliners along concrete railings will be paid for at the contract unit price per linear foot per the type specified.

The specialty City Seal formliner will be paid for at the contract unit price for each City Seal installed.

Formliner, Wall Panels .................................................................................. SFT Formliner, Bridge Rail, Front Face .............................................................. LFT Formliner, Bridge Rail, Rear Face ............................................................... LFT Formliner, Modified PS-2 Railing for Roadways, Front Face ..................... LFT Formliner, 33” Bridge Rail for Ramps, Rear Face ....................................... LFT Formliner, Specialty, City Seal ................................................................. EACH

Cost of formliner includes all fabrication, materials and labor to finish railings with formlined concrete.

Payment for all materials and labor included in the installation of wall panels and concrete railing are not included in the cost of formliners, but will be paid for under separate pay items.

TS 33 MASONRY COATING

Description

This work shall consist of the preparation of the concrete surfaces, cleaning such surfaces by means of sandblasting, and furnishing and applying masonry coating as described herein. The masonry coating shall be applied to all concrete surfaces shown on the plans or as directed.

Materials

Materials shall be in accordance with 909.13.

CONSTRUCTION REQUIREMENTS

Surface Preparation

The surfaces to be masonry coated shall be given a finish in accordance with 702.21. Such surfaces shall then be sealed with a concrete sealer in accordance with 709. Air pockets of up to 1/4 in. (6 mm) in width and depth will not require grouting prior to application of the masonry coating. Air pockets larger than 1/4 in. (6 mm) in width and depth shall be filled with a grout mix composed of one part portland cement, two parts screened and washed sand graded to pass the No.

16 (1.18 mm) sieve with not more than 5% retained on the No. 30 (600 µm) sieve, and sufficient water to produce a thick liquid mix. The grout shall be applied to fill the air pockets and voids by using burlap pads, float sponges or other acceptable methods. As soon as the grout has taken its initial set, the surface shall be brushed to remove all loose grout, leaving the surface smooth and free of air pockets and voids. Prior to the application of the masonry coating, regardless of whether the concrete surface has been previously sealed, the surface to be coated shall be lightly sandblasted to remove flaking coatings, dirt, oil and other substances deleterious to the applied finish coating. Overblasting, exposing additional air pockets, or disfiguring the surface shall be prevented. Final cleaning shall be done with compressed air. The air compressor shall be equipped with suitable separators, traps, or filters which shall remove water, oil, grease, or other substances from the air line.

Prior to application of the finish coating, the surfaces shall have been prepared in accordance with the manufacturer’s recommendations and shall be in a condition consistent with the manufacturer’s requirements.

Application

The application, including equipment used, shall be in accordance with the manufacturer’s recommendations. The material shall be applied by qualified personnel experienced in the work.

The material shall be thoroughly mixed in its original container. If skins have formed, the material will be rejected. The material shall not be thinned. The masonry coating may be applied over a damp, but not wet, surface. It shall be applied at a uniform film thickness at a rate of 45 ± 5 sft/gal. (1.1 ± 0.1 m2/L) or as recommended by the manufacturer and approved by the Engineer.

In either case, the application rate shall be sufficient to produce a uniform color and texture. The material shall be applied only when the ambient temperature is between 45°F (7°C) and rising, and 100°F (38°C). It shall not be applied onto frozen surfaces or if rain is imminent. If rain occurs on a freshly applied surface, recoating may be required based on the extent of rain damage.

The material shall not be applied if dusty conditions exist in the vicinity of the surfaces to be coated. When dust conditions are beyond the control of the Contractor, or are generated off-site, application shall not take place until more favorable conditions exist. The application of the masonry coating shall be scheduled as one of the final finishing operations to minimize construction generated dust. A wet edge shall be maintained at all times to prevent lap marks.

Stopping and starting in the middle of a section of concrete will not be permitted. If applying the coating with a roller, the material shall initially be applied in vertical strokes, cross rolled for even film and appearance, then finished with vertical strokes.

After application, the coating shall be dry to the touch within 48 h. The coating shall achieve a final cure within two to three weeks under ideal conditions.

Finishing

The coating material in the finished state shall be capable of accommodating the thermal and elastic expansion ranges of the substrate without cracking.

The texture of the completed finish coat shall be generally similar to that of rubbed concrete. The completed finish coat shall be tightly bonded to the structure to present a uniform appearance and texture. If necessary, additional coats shall be applied to produce the desired surface texture and uniformity.

Coatings shall be entirely removed from the structure upon their failure to positively adhere without chipping, flaking or peeling, or attaining the desired surface appearance. The finish coat shall be reapplied after proper surface preparation until the desired finished product is achieved.

The average thickness of the completed finish coat shall not exceed 1/8 in. (3 mm).

The manufacturer shall submit, for each batch of material used, the product analysis data as follows:

(a) Weight per gallon (Mass per liter).

(b) Viscosity in Kreb units.

(c) Mass percent pigment.

(d) Mass percent vehicle solids.

(e) Infrared spectra of vehicle solution.

Method of Measurement

Masonry coating will be measured by the square foot of masonry coating applied.

Surface seal will be measured by the square foot of surface seal applied under areas being masonry coated.

Basis of Payment

The accepted quantity of Masonry coating used on concrete bridge railing, concrete bridge railings on ramps and side streets, bridge piers, and portions of retaining walls as indicated in project plans and specifications will be paid for at the contract unit price for masonry coating.

Concrete surface seal will be paid for at the contract unit price for surface seal.

Masonry Coating ........................................................................................... SFT Surface Seal ................................................................................................... SFT

The cost of surface preparation, furnishing and applying the material, labor, equipment, and necessary incidentals shall be included in the cost of this work.

SECTION 909, AFTER LINE 410, INSERT AS FOLLOWS:

909.13 Masonry Coating Material

Masonry coating material shall be a commercial product designed specifically for coating concrete. The material shall be suitable for application on damp concrete, or concrete which is not fully cured. Only one coating material shall be used on an individual structure. It shall be delivered to the project site in sealed containers bearing the manufacturer’s original labels. The brand, color, and type shall be clearly marked on each container. All material shall be from the same lot or batch unless otherwise authorized. A copy of the manufacturer’s printed instructions shall be made available.

The coating material shall be stored in airtight, upright containers. The containers shall be stored in a dry enclosure where the temperature is above 45°F (7°C) and less than 100°F (38°C).

Material which has been subjected to freezing will be rejected.

The masonry coating shall have a shelf life of not less than 12 months.

The color of the applied masonry coating shall be in accordance and match the color identification number shown on the plans and in the technical specifications.

(a) Material Testing All testing shall be performed by a qualified commercial testing laboratory acceptable to the Division of Materials and Tests.

The applied finish coating shall be subjected to and shall satisfy the requirements of the tests listed below, prior to use on a structure. The masonry coating manufacturer shall certify that the coating is compatible with the sealer used on the concrete surface.

1. Freeze-Thaw Tests The applied finish coating shall be subjected to freeze-thaw cycle tests as follows:

a. Three concrete specimens, not less than 4 in. by 6 in. by 6 in. (100 mm by 150 mm by 150 mm), of the mix design for the structure shall be cast and cured. Fourteen days moist curing with a drying period at room temperature, 60°F to 80°F (16°C to 27°C), for 24 h will be required before the specimens are coated with the applied finish. There shall be no excessive oil on specimen forms.

The finish coating shall be applied to the sides of specimens at a spreading of 50 ± 10 sft/gal. (1.2 ± 0.2 m2/l). Brush application will be permitted.

Cementitious coatings shall be cured at room temperature and 50% relative humidity for 24 h, at room temperature and 90% relative humidity for 48 h, at room temperature and 50% relative humidity for four days for a total curing time of seven days. Other coatings shall be cured at room temperature for 48 h after the completing of curing.

b. The specimens shall be immersed in water at room temperature for 3 h, then removed.

c. The specimens shall be placed in cold storage at -15°F (-26°C) for 1 h, then removed.

d. The specimens shall be thawed at room temperature for 1 h.

e. Steps c. and d. above shall be repeated for a total of 50 cycles. At the end of

50 cycles, the specimens shall show no visible defects.

2. Accelerated Weathering The applied finish coating shall be subjected to a 5,000 h exposure test in a Twin-Carbon- Arc-Weatherometer, ASTM G 23, Type D, at an operating temperature of 145°F (63°C). The test shall be made at 20 minute cycles consisting of 17 minutes of light and 3 minutes of water spray plus light. At the end of the exposure test, the exposed samples shall show no chipping, flaking, or peeling.