Section_9_Technical_Specifications.pdf

TECHNICAL

SPECIFICATIONS

BLACKBURN POINT FLOATING DOCK REPLACEMENT PROJECT

CONSTRUCTION SPECIFICATIONS

CEC FILE NO. 23015

December 21, 2023

CS-1.0 SCOPE OF WORK

The WORK to be performed under the CONTRACT consists of furnishing all labor, equipment, supplies, materials, transportation, fuel, power and water, providing environmental protection, and performing all operations in connection with the Blackburn Point Floating Dock Replacement Project. This WORK must be completed according to the CONTRACT documents within the time specified in the CONTRACT and within compliance with the conditions of the federal, state, and local permits. The CONTRACTOR is solely responsible for all construction means, methods, techniques, procedures, lay out, and the sequence of the WORK.

CS-2.0 WORK AREA

Areas in the vicinity of the project area contain sensitive environmental habitats. The CONTRACTOR shall avoid these habitats and is responsible for environmental protection. All WORK must be confined to the CONTRACTOR'S WORK area. No plant or equipment may operate or transit outside the property boundary or WORK limits. All construction areas shall be restored to pre-construction conditions, or better as part of demobilization.

CS-2.1 Security

The CONTRACTOR is permitted to exclude the public from his WORK area as necessary to perform the WORK and to operate in accordance with the general conditions of the CONTRACT. Enforcement shall be the CONTRACTOR'S responsibility at no additional cost to the COUNTY. The enforcement shall be coordinated with local enforcement agencies and will be subject to approval of the COUNTY.

CS-2.2 Construction Access

Construction access and staging shall be confined to the CONTRACTOR'S WORK area.

Procurement of any additional access routes for ingress and egress to the construction area shall be obtained by and at the expense of the CONTRACTOR. The CONTRACTOR shall confine his plant, equipment, materials, and operations of personnel to areas permitted by law, ordinances, permits and the requirements of the CONTRACT documents, and shall not unreasonably encumber the premises with plant, equipment, and materials. The CONTRACTOR must control noise and must control wind-blown sand, silt and dust while using the accesses. The CONTRACTOR is responsible for preparation and restoration of the access areas.

CS-2.3 Protection of Existing Facilities

During all phases of the WORK including but not limited to staging, construction access, construction, and site restoration, the CONTRACTOR shall implement best management practices to protect and stabilize the existing facilities within and adjacent to the WORK area and to prevent damage thereto by the CONTRACTOR'S operations. Existing facilities damaged by CONTRACTOR shall be immediately repaired in conformance with the best construction standards of practice.

CS-2.4 Noise

The CONTRACTOR shall conduct their operations so as to comply with all federal, state, and local laws pertaining to noise. The CONTRACTOR shall use a decibel meter and keep records as necessary to verify the WORK is being conducted accordingly.

CS-3.0 TIMBER

CS-3.1 Materials

CS-3.1.1 Lumber and Timbers

The CONTRACTOR shall provide solid sawn lumber and timbers of stress-rated southern pine or fir-larch with a visual grade no. 1 or higher for all structural and nonstructural members. Timber grade marks should be from a recognized association or independent inspection agency using the specific grading requirements of an association recognized as covering the species used. The association or independent inspection agency shall be certified by the board of review, American Lumber Standards Committee, to grade the species used. The CONTRACTOR shall be responsible for the quality of treated wood products.

Preservative treatment shall be with waterborne preservative in accordance with AWPA as follows:

Clamps, stringers, and ledger shall be treated by CCA preservative with 0.6 pcf retention.

Piles shall be treated by CCA preservative with 2.5 pcf retention.

CS-3.1.2 Hardware

The CONTRACTOR shall provide bolts with necessary nuts and washers, timber connectors, nails, screws, and other fastenings. The bolts and nuts shall conform to ASTM F593 and F594. The CONTRACTOR shall provide plate or cut washers where indicated; provide bolts with washers under nut and head; provide timber connectors and other metal fastenings of type and size shown; and provide 316 alloy stainless steel hardware unless specified otherwise on CONTRACT plans.

CS-3.1.3 Construction

The CONTRACTOR shall cut, bevel, and face timbers prior to plant preservative treatment and provide protective equipment for personnel fabricating, field treating, or handling materials treated with water-borne salts.

CS-3.1.4. Framing

The CONTRACTOR shall cut and frame lumber and timber so that joints will fit over contact surface, and secure timbers and piles in alignment. Open joints are unacceptable.

Shimming is not allowed. Bore holes for truss rods or bolts with a bit 1/16 inch larger in diameter than rod or bolt, bore holes in small timbers for bolt with a bit of the same diameter or smallest dimension of the spike to prevent splitting, and counterbore for countersinking wherever smooth faces are specified.

CS-3.1.5 Fastening

Vertical bolts shall have nuts on the lower end. Where bolts are used to fasten timber to timber, timber to concrete, or timber to steel, the CONTRACTOR shall bolt members together when they are installed and retighten immediately prior to final acceptance. The CONTRACTOR shall provide bolts having sufficient additional threading to provide at least 3/8 inch per foot thickness of timber for future retightening, provide timber connectors of types indicated, install split-ring and shear-plate connectors in pre-cut grooves of the dimensions as recommended by the manufacturer, force toothed-ring and spike-grid connectors and clamping plates into the contact surfaces of timbers joined by means of proper pressure tools, and at the joints, embed connectors of these types simultaneously and uniformly.

CS-3.1.6 Field Treatment

The CONTRACTOR shall field treat cuts, holes, bevels, notches, refacing and abrasions made in the field in treated piles or timbers with based copper naphthenate solution. Trim cuts and abrasions before field treatment; paint depressions or openings around bolt holes, joints, or gaps including recesses formed by counter boring with preservative treatment used for piles or timber.

CS-4.0 SYNTHETIC LUMBER

The CONTRACTOR shall provide Weardeck synthetic lumber or submit documentation of an equivalent for review and approval by the COUNTY and ENGINEER. COUNTY shall select color prior to ordering of material. Synthetic lumber shall be installed in accordance with manufacturers’ specifications. The CONTRACTOR shall make the synthetic decking of a single thickness of the plank supported by stringers. Unless otherwise indicated, the CONTRACTOR shall lay the plank with joints and plank spacing in accordance with manufacturers specifications.

The CONTRACTOR shall screw plank to each stringer with screws, provide screws at least 1½ inches greater than the thickness of the plank, place screws at least 1½ inches from edges of the plank, cut ends of planks parallel to center line of the structure, and grade planks as to thickness and lay so that adjacent planks vary less than 1/16 inch.

CS-5.0 CONCRETE

CS-5.1 Description

Construct concrete structures and other concrete members, with the exception of incidental concrete construction (which are specified in other sections). Refer to FDOT section 450 for prestressed construction requirements additional to the requirements of this section.

CS-5.2 Materials

MEET THE FOLLOWING FDOT REQUIREMENTS:

Concrete .............................................................. Sections 346 and 347 Reinforcing steel ................................................................section 415 Curing materials ...............................................................*section 925 Epoxy bonding compounds ..............................................section 926 Joint materials ....................................................................section 932

*The ENGINEER will allow clean sand and sawdust for certain curing, when and as specified.

Meet the following ASTM requirements:

Reinforcing steel ............................................. ASTM A123 and A153

CS-5.3 Submittals

Furnish the following:

1. Complete data on the concrete mix in accordance with ASTM C94, alternate 3.

2. Ready mix delivery tickets for each truck with the following information:

A. Name of concrete firm.

B. Serial number of ticket.

C. Date.

D. Truck number.

E. Specific class of concrete.

F. Amount of concrete.

G. Time loaded.

H. Water added.

I. Time unloaded.

CS-5.4 Concrete

A. Ready-mixed meeting ASTM C-94 and these specifications.

B. Portland cement: type ii with microsilica (minimum 50 pounds) and fly ash.

Minimum cement content shall be 700 pounds with a maximum water-cement ration of 0.44.

C. Mix design:

1. Minimum allowable 28-day compressive field strength: 5,000 psi when cured and tested in accordance with ASTM C-31 and C-39.

2. Coarse aggregate size: ¾ inch. Other aggregate gradations must be submitted for review and approved in writing before use on the project.

3. Slump range: 5 inches ± 1 inch.

4. Air entrainment: 4 percent by volume.

D. Mixing: minimum 70 and maximum 270 revolutions of mixing drum. Non agitating equipment is not allowed. Concrete shall be placed within 1½ hours after the cement has been added to the mix.

E. CONTRACTOR shall coordinate and schedule concrete sampling and testing with an independent testing laboratory in accordance standard FDOT test methods for each batch of concrete.

CS-5.5 Falsework

CS-5.5.1 Design and Erection

Design and construct all falsework to provide the necessary rigidity and to support the loads without appreciable settlement or deformation. Use screw jacks or hardwood wedges to take up any settlement in the framework, either before or during the placing of concrete. If any weakness develops and the centering shows undue settlement or distortion, stop the WORK, remove any masonry affected, and strengthen the falsework before resuming WORK. Support falsework which cannot be founded on a satisfactory footing on piling. Space, drive, and remove the piling in an approved manner.

CS-5.5.2 Camber

Provide camber to correct for settlement and deflection of falsework.

CS-5.6 Forms

CS-5.6.1 General

Provide forms, either of wood or metal, as follows: (a) externally secured and braced where feasible; (b) substantial and unyielding; (c) of adequate strength to contain the concrete without bulging between supports and without apparent deviation from the neat lines, contours, and shapes shown in the plans. Design forms to withstand the additional forces of vibration without apparent deviation from the desired shape or position.

Assemble forms to be mortar tight. If using lumber forms, construct them of dressed wood of uniform thickness. Use form liners on wooden forms where FDOT class 3 surface finish is specified. Construct assembled forms to render a concrete surface of smooth, uniform finish. Make provisions to remove forms without injury to concrete surfaces. Remove blocks and bracing with the forms, and do not leave any portion of the forms in the concrete.

CS-5.6.2 Inspection and Approval

Do not place concrete in a form until the form has been inspected and approved by ENGINEER. Although the ENGINEER inspects and approves the forms, the CONTRACTOR is responsible for obtaining satisfactory concrete surfaces, free from warping, bulging, or other objectionable defects. Pay special attention to the ties and bracing. Where the forms appear to be insufficiently braced or unsatisfactorily built, stop and correct defects to the satisfaction of the ENGINEER.

CS-5.6.3 Non-Metallic Form Materials

LUMBER:

for all surfaces, use lumber that is not less than ¾ inches in thickness, dressed, and free of knot holes, loose knots, cracks, splits, warps, and other defects. Proportion the spacing of studs, joists, and wales to exclude warps and bulges and to produce true and accurate concrete surfaces. Only use structurally sound lumber.

PLYWOOD:

The CONTRACTOR may use plywood of not less than 5/8 inches in thickness manufactured with waterproof glue or protected with an approved impervious coating. Do not use pieces with bulged plies or raveled, untrue edges.

CS-5.6.4 Form Alignment, Bracing, and Ties

Construct forms in such manner that they may be adequately secured for alignment, shape, and grade. Use bracing systems, ties, and anchorages that are substantial and sufficient to ensure against apparent deviation from shape, alignment, and grade. Do not drive nails into existing concrete. Do not use bracing systems, ties, and anchorages which unnecessarily deface or mark, of have an injurious or undesirable effect on surfaces that will be a part of the finished surface.

If metal ties and anchorages are to remain in the concrete, construct them so as to permit the removal of metal to at least 2 inches beneath the finished surface of concrete. Use accessories for metal ties and anchorages that allow the removal of metal to the prescribed depth while leaving the smallest possible repairable cavity.

When using wire ties, cut them back from the finished surface of the concrete a minimum of 1 1/2 inches deep. Do not use internal ties of wire when forming surfaces exposed to view.

CS-5.6.5 Preparation and Cleaning

Meet the following requirements for the condition of forms at the time of beginning concrete casting:

A. Treat all forms with an approved form-release agent before placing concrete. Do not use material which adheres to or discolors the concrete.

B. Clean forms of all dirt, sawdust, shavings, and other debris.

C. Close and secure all inspection and clean-out holes

CS-5.7 Placing Concrete

CS-5.7.1 Temperature Restrictions

CS-5.7.1.1 Concreting in Cold Weather

Do not place concrete when the temperature of the concrete at placement is below 7° C.

Meet the air temperature requirements for mixing and placing concrete in cold weather as specified in FDOT sections 346 and 347.

The CONTRACTOR is responsible for all risks connected with the placing and curing of concrete. Although the ENGINEER may give him permission to place concrete, the CONTRACTOR is responsible for satisfactory results.

CS-5.7.1.2 Concreting in Hot Weather

Meet the temperature requirements and special measures for mixing and placing concrete in hot weather as specified in FDOT section 346.

When the temperature of the concrete as placed exceeds 24° C, incorporate in the concrete mix a water-reducing retarder or water reducer if allowed by FDOT section 346.

Spray deck slab forms and reinforcing steel with cool fresh water just prior to placing the concrete.

The CONTRACTOR is responsible for all risks connected with the placing and curing of concrete. Although the ENGINEER may give him permission to place concrete, the CONTRACTOR is responsible for satisfactory results. Should concrete the CONTRACTOR places prove unsatisfactory, the CONTRACTOR shall remove, dispose of, and replace the concrete at no expense to the owner.

CS-5.7.2 Inspections Before Placing Concrete

Do not place concrete until the depth and character of the foundation and the adequacy of the forms and falsework have been approved by the ENGINEER. Do not deposit any concrete until all reinforcement is in place and has been inspected and approved by the ENGINEER. The CONTRACTOR shall notify the COUNTY and ENGINEER a minimum of 48 hours prior to placing the concrete so that the ENGINEER may inspect the steel.

CS-5.7.3 General Requirements for Placing Concrete

Deposit concrete as nearly as possible in its final position. Do not deposit large quantities at one point and then run or WORK it along the forms. Take special care to fill each part of the forms, to WORK coarse aggregate back from the face, and to force concrete under and around reinforcing bars without displacing them.

Use a method and manner of placing concrete that avoids the possibility of segregation or separation of aggregates. If the ENGINEER determines that the quality of concrete as it reaches its final position is unsatisfactory, remove it and discontinue or adjust the method of placing until the ENGINEER determines that the quality of the concrete as placed is satisfactory.

Use metal or metal-lined open troughs or chutes. Where steep slopes are required, use chutes that are equipped with baffles or are in short lengths that reverse the direction of movement. Where placing operations would involve dripping the concrete freely more than 3 feet, deposit it through pipes, troughs, or chutes of sheet metal or other approved material. Keep all troughs, chutes, and pipes clean and free from coatings of hardened concrete by thoroughly flushing them with water after each run or more often if necessary.

CS-5.7.4 Placing Concrete by Pumping

In general, use concrete pumping equipment that is suitable in kind and adequate in capacity for the WORK proposed. Use a pump discharge line that has a minimum diameter of 2.5 inches. Use a pump and discharge lines that are constructed so that no aluminum surfaces are in contact with the concrete being pumped. Operate the pump to produce a continuous stream of concrete, without air pockets. When using cement slurry or similar material to lubricate the discharge line when pumping begins, collect such material at the point of discharge. The CONTRACTOR shall dispose of the collected slurry in areas provided by the CONTRACTOR. Control the pump discharge locations so that the placement locations of the various lots of concrete represented by strength test cylinders can be identified in the event the test cylinders indicate deficient strength. When concrete is placed by pumping, take all test samples of concrete at the end of the discharge line, except in accordance with the provisions of the FDOT standard operating procedures for quality control concrete.

CS-5.7.5 Consolidation

Consolidate the concrete by continuous working with a suitable tool in an acceptable manner, or by vibrating as set forth in cs-13.8.8. When not using vibrators, thoroughly WORK and compact all thin-section WORK with a steel slicing rod. Spade all faces and flush the mortar to the surface by continuous working with a concrete spading implement.

CS-5.7.6 Obstructions

In cases where, because of obstructions, difficulty is encountered in puddling the concrete adjacent to the forms, bring the mortar content of the mix into contact with the interior surfaces by vibrating the forms. Produce the vibrations by striking the outside surfaces of the forms with wooden mallets or by other satisfactory means. In placing concrete around steel shapes place it only on one side of the shape until it flushes up over the bottom flange of the shape on the opposite side, after which place it on both sides to completion.

After the concrete has taken its initial set, exercise care to avoid jarring the forms or placing any strain on the ends of projecting reinforcing bars.

CS-5.7.7 Requirements for Successive Layers

Generally, place concrete in continuous horizontal layers, approximately 12 inches thick.

In any given layer, follow each separate batch with the next so closely, place and consolidate each one before the preceding one has taken initial set, in order that there will be no plane of separation between the batches. Do not allow the time before placing the next successive layer to exceed 20 minutes, unless the ENGINEER determines that initial set has not yet occurred. Generally, leave each layer of concrete unfinished to secure efficient bonding with the overlying layer. Consolidate a succeeding layer placed before the underlying layer has become set in a manner that will avoid completely the tendency to produce a construction joint between the layers. To avoid visible joints as far as possible on exposed faces, finish the top surface of the concrete immediately adjacent to the forms of the exposed face, smoothing with a plaster mason's trowel. Form, by inset form WORK, horizontal layers so located as to produce a construction joint wherein a "featheredge" might be produced in the succeeding layer such that the succeeding layer will end in a body of concrete not less than 6 inches thick. Conduct the operation of depositing and consolidating the concrete so as to form a dense, impervious mass of uniform texture with smooth faces on exposed surfaces. Remove, dispose of, and replace defective concrete as directed by the ENGINEER and at no expense to the owner.

CS-5.7.8 Vibration of Concrete

CS-5.7.8.1

Where required: consolidate all concrete except seal, culvert floors, steel pile jackets, and concrete for incidental construction by the use of mechanical vibrators.

CS-5.7.8.2 Vibrators

Provide adequate vibrators on the project that are approved by the ENGINEER before beginning concrete WORK. Generally, provide vibrators of the internal type. For thin sections, where the forms are especially designed to resist vibration, the CONTRACTOR may use external vibrators. Use a vibrating frequency that is not less than 4500 impulses per minute and is of sufficient intensity and duration to cause complete consolidation of the concrete. Do not continue vibration until it causes segregation of the materials. For vibrating thin, heavy reinforced sections, use heads of such size to secure proper vibration of the concrete without disturbance of either the reinforcing steel or the forms.

CS-5.7.8.3 Number of Vibrators Required

Use a sufficient number of vibrators to secure the compaction of each batch before the next batch is delivered, without delaying the delivery. In order to avoid delays due to breakdowns, provide at least one stand-by vibrator, with an appropriate power source.

CS-5.7.8.4 Method of Vibration

Use vibrators to consolidate properly placed concrete. Do not use them to move concrete about in the forms. Insert the vibrators in the surface of concrete at points spaced to ensure uniform vibration of the entire mass of the concrete. Insert the vibrator at points that are no further apart than the radius over which the vibrator is visibly effective. Allow the vibrator to sink into the concrete by its own weight, and allow it to penetrate into the underlying layer sufficiently so that the two layers are thoroughly consolidated together.

After thoroughly consolidating the concrete, withdraw the vibrator slowly to avoid formation of holes.

CS-5.7.8.5 Hand Spading

When necessary, in order to secure well-filled forms, free from aggregate pockets, honeycomb, bubbles, etc., spade the concrete by hand, along the surfaces of the forms and in all corners, following the vibration.

CS-5.8 Construction Joints

CS-5.8.1 Location

Make construction joints only at locations shown in the CONTRACT plans or in the placement schedule, unless otherwise approved in writing.

CS-5.8.2 Preparations of Surfaces

Before depositing new concrete on or against concrete which has hardened, re-tighten the forms. Roughen the surface of the hardened concrete in a manner that will not leave loosened particles, aggregate, or damaged concrete at the surface. Thoroughly clean the surface of foreign matter and laitance, and saturate it with water.

CS-5.8.3 Placing Concrete

Continuously place concrete from joint to joint. Carefully finish the face edges of all joints which are exposed to view true to line and elevation.

CS-5.9 Anchor Bolts and Dowels

Set anchor bolts and dowels as provided in FDOT 460-30. Galvanize all anchor bolts as specified in FDOT 460-30.

CS-5.9.1 Epoxy Bonding Compounds

Where epoxy bonding compounds for bonding concrete are specified or required, apply the epoxy bonding materials only to clean, dry, structurally sound concrete surfaces.

Provide surface preparation, application, and curing of epoxy bonding compound in strict accordance with the manufacturer's recommendations for each particular application.

CS-5.10 Finishing Concrete

CS-5.10.1 General Surface Finish (Required for All Surfaces)

After placing and consolidating the concrete, strike-off all exposed surfaces to the lines and grades indicated in the plans in a manner that will leave a surface of uniform texture free of undesirable surface. After removing excess mortar and concrete and while the concrete is still in a workable state, carefully tool all construction and expansion joints.

Leave joint filler exposed for its full length with clean edges. Ensure that finished WORK in addition to that specified above is compatible and complementary to the class of surface finish required.

Immediately after removing forms from any exposed concrete surface, remove all fins and irregular projections flush with the surface. Clean, saturate with water, and carefully point with mortar all holes, material tie cavities, honeycomb, chips, and spalls.

In the event the CONTRACTOR obtains unsatisfactory surfaces, the CONTRACTOR shall repair them by methods approved by the COUNTY or the ENGINEER will reject the affected concrete. The CONTRACTOR shall repair any surface or remove rejected concrete at no expense to the COUNTY.

For pointing, use mortar that is a blended mixture of cement and fine aggregates, finished and composed of materials from the same source as used in the class of concrete being placed. To prevent shrinkage, allow the mortar to take its initial set, then rework and apply it without adding water. Carefully roughen and clean cavities to be filled with mortar to provide a mechanical bond. Exercise care during the roughening process to prevent additional defacement and damage to the formed surface.

CS-5.10.2 Surface Finishes

In addition to the general surface WORK specified for all exposed concrete surfaces, the ENGINEER may require a specific surface finish as indicated on the CONTRACT plans.

For all such exposed surfaces, begin finish WORK for the applicable class specified, along with the general finish WORK, immediately after removal of the forms. In order to further ensure the required quality of the finish, remove forms no later than the minimum time specified for the forms to remain in place. Satisfactorily repair finished concrete surfaces which are subsequently disfigured or discolored at no expense to the COUNTY.

CS-5.11.1 General

CS-5.11.1.1 Methods and Curing Time

Remove forms after concrete has obtained 70% of the specified 28-day strength or approval is obtained in writing from ENGINEER.

Remove forms with care to prevent scarring and damaging the concrete surfaces. The CONTRACTOR shall have on site slump tests performed and test cylinders taken and tested by a testing laboratory approved by the owner and ENGINEER. Number of tests shall be determined mutually by the COUNTY and CONTRACTOR and depend upon the performance and demonstration that the CONTRACTOR is meeting the specifications for compressive strength of the concrete.

When using the percent of required strength, cast test cylinders from representative concrete for compressive strength determination. A minimum of three cylinder breaks, established at different curing times and concrete strength, will be used to develop a curve relating curing time to concrete strength. Cure such test cylinders as nearly as practical in the same manner as the concrete in the corresponding structural component, and test them in accordance with AASHTO T22 and AASHTO T23. Perform casting, curing, and testing at no expense to the COUNTY as a basis for form removal. When concrete strength tests indicate a compressive strength equal to or greater than the indicated percentage of specified strength, the CONTRACTOR may remove the forms. The CONTRACTOR may continue to use curing periods so established so long as the ambient temperature is equal to or greater than the temperature existing during the curing of the test cylinders. When the temperature falls 8° C or more below the ambient temperature existing during the test cylinder curing period, repeat the test procedure outlined above, and establish a different curing period for the different ambient temperature.

Do not remove forms at any time without the consent of the COUNTY and ENGINEER.

Although the COUNTY and ENGINEER will provide their consent to remove the forms, the CONTRACTOR is responsible for the WORK.

CS-5.11.1.2 Curing Methods

The CONTRACTOR may use continuous-moisture curing, steam curing, membrane curing compound, or an impervious covering for any concrete parts. Mix membrane curing compound with a mechanically operated mixer immediately prior to each use to provide uniform consistency. Apply curing compound in accordance with the manufacturer's recommendations, subject to the rate of application specified herein. If curing compound is to be applied by spraying, use a compressor driven sprayer of sufficient size to provide uniform spray at the nozzle. Keep all nozzles clean, and ensure that they provide uniform mist. The ENGINEER will require standby equipment in case of mechanical failure. The ENGINEER will allow handheld pump-up sprayers for standby equipment. However, do not use the handheld pump-up sprayers except in case of mechanical failure or for applying compound on Class I concrete (non-pavement). If the CONTRACTOR fails to comply with these requirements, the ENGINEER will suspend further concrete placements until the CONTRACTOR re-establishes proper control. Apply membrane curing compound at a rate of at least one liter to every 15 square feet of exposed surface to be cured. Provide a membrane curing compound and impervious covering that is continuous, flexible, and without defects and that retains the required moisture in the concrete.

Keep cover materials used in continuous moisture curing methods continuously wet for a period of 72 hours.

CS-6.0 EPOXY

CS-6.1 General

The CONTRACTOR shall secure dowels into concrete using sika epoxy or approved equivalent.

CS-6.2 Surface Preparation

The CONTRACTOR shall remove loose and deteriorated material. Removal shall not be limited to spalls and previous repairs surfaces.

Surface shall be clean of paint, grease, oil, laitance, and other contaminants. Shall be prepared in accordance with manufacturer's specification.

CS-6.3 Application

CONTRACTOR shall rinse with fresh water all surfaces of concrete, reinforcing steel, and formwork immediately prior to applying epoxy.

All epoxy products shall be applied in accordance with manufacturer's specifications.

CS-6.4 Acceptance

Based upon construction observations the COUNTY reserves the right to require the CONTRACTOR to perform a pull-off tensile test in accordance with ACI 503R at the CONTRACTORS expense. Failure of the test will result in removal of any placed material at the CONTRACTORS expense.

CS-7.0 POLLUTION CONTROL

The CONTRACTOR shall control and conduct such operations and institute maintenance procedures to eliminate pollution of adjacent surface waters caused by either material runoff or discharges of any kind from the construction area (roof drains discharge excepted). No off-site discharge is allowed. The CONTRACTOR shall comply with the provisions of CHAPTERS 253 AND 403, Florida statutes, regarding control of air and water pollution and with all rules and regulations of the department of environmental protection. If non-compliance with the aforementioned federal, state or local laws or regulations occurs, the CONTRACTOR shall immediately inform the COUNTY and ENGINEER of proposed corrective action and take such action as may be approved. If the CONTRACTOR fails or refuses to comply promptly, the COUNTY, through the ENGINEER, may issue an order stopping all or part of the work until satisfactory corrective action has been taken. No part of the time lost due to any such stop orders shall be made the subject of a claim for extension of time or for excess costs or damages by the CONTRACTOR.

CS-8.0 ENVIRONMENTAL PROTECTION

CS-8.1 General

For the purpose of this specification, environmental protection is defined as the retention of the environment in its natural state to the greatest possible extent during project construction and to enhance the natural appearance in its final condition. Environmental protection requires consideration of air, water, and land, and involves noise, solid waste-management as well as other pollutants. In order to prevent any environmental pollution arising from the construction activities in the performance of this CONTRACT, the CONTRACTOR and his SUBCONTRACTORS shall comply with all applicable federal, state and local laws and regulations concerning environmental pollution control and abatement.

CS-8.2 Best Management Practices

Activities shall be conducted in a manner, which does not cause violations of state water quality standards. The contractor shall implement best management practices for erosion and pollution control to prevent violations of state water quality standards.

CS-8.3 Subcontractors

Compliance with the provisions of this section by subcontractors will be the responsibility of the contractor.

CS-8.4 Location of Storage Facilities

The CONTRACTOR'S storage areas required in the performance of the WORK shall be located upon existing cleared portions of the job site or areas to be cleared, and shall require written approval of the COUNTY and ENGINEER. The CONTRACTOR shall not store oil or fuel on-site, or equipment that is not required for the daily construction activities.

CS-9.0 Floating Dock and Gangway

See Attachment A for Accudock Low Profile Rowing Dock Specifications. Any dock proposed must meet or exceed the attached specifications and alternatives may be submitted to the COUNTY and ENGINEER for review.

242557TEG_SECTION 6 OTHER CONTRACT FORMS