Amend_1_Tech_Spec.pdf

Dworshak Fish Hatchery Burrows Ponds Concrete Repair W912EF17B0012

SECTION TABLE OF CONTENTS

DIVISION 03 - CONCRETE

SECTION 03 01 32

CONCRETE REHABILITATION

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 CONTRACTOR QUALIFICATIONS

1.4 REGULATORY REQUIREMENTS

1.5 DELIVERY, STORAGE, AND HANDLING

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 General

2.1.2 Water

2.2 EQUIPMENT

2.3 Expansion Joint Materials

2.3.1 Backing

2.3.2 Sealants

2.4 Polymer-Modified Cement

2.4.1 Manufacturer's Instructions

PART 3 EXECUTION

3.1 PROTECTION

3.1.1 Protection of Existing Features

3.1.2 Protection of Personnel

3.2 SURFACES TO BE COATED

3.3 PROJECT CONDITIONS

3.4 MIXING MATERIALS

3.5 SURFACE PREPARATION

3.5.1 General

3.5.2 Waste Water Disposal

3.6 SURFACE REPAIRS

3.6.1 Polymer-Modified Cement

3.7 CLEANING AND RESEALING JOINTS

3.7.1 Preparation of Joints

3.7.2 Installation of Sealant

3.7.2.1 Time of Application

3.7.2.2 Backing Material

3.7.2.3 Sealing Joints

3.8 INSPECTIONS

3.8.1 Final Inspection

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SECTION 03 01 32

CONCRETE REHABILITATION

PART 1 GENERAL

1.1 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM C509 (2006; R 2015) Elastomeric Cellular Preformed Gasket and Sealing Material

ASTM C920 (2014a) Standard Specification for Elastomeric Joint Sealants

ASTM D1056 (2014) Standard Specification for Flexible Cellular Materials - Sponge or Expanded Rubber

ASTM D1667 (2005; R 2011) Flexible Cellular Materials

- Poly (Vinyl Chloride) Foam (Closed-Cell)

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. A designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Contractor Qualifications; G, GT

SD-03 Product Data

Expansion Joint Materials; G, GT

Polymer-Modified Cement; G, GT

SD-08 Manufacturer's Instructions

Polymer-Modified Cement; G, GT

SECTION 03 01 32.00 28 Page 2

1.3 CONTRACTOR QUALIFICATIONS

The Contractor performing the repair work shall have been involved in a minimum of three concrete repair projects similar in size and scope to this project within the last five years. Submit information, including name, dollar value, date, and point-of-contact for similar projects which demonstrates the required experience and/or training.

1.4 REGULATORY REQUIREMENTS

Perform all work in accordance with applicable Federal, State and local safety, health and environmental requirements, and EM 385-1-1 . The Contractor is responsible for obtaining all permits required by Federal, State and local agencies for the performance of the work.

1.5 DELIVERY, STORAGE, AND HANDLING

Inspect materials delivered to site for damage, unload and store with a minimum of handling. Deliver materials in manufacturer's original sealed containers, fully identified with brand, type, grade, class and all other qualifying information. Store materials at temperatures between 40 degrees F to 85 degrees F. Do not allow materials to freeze. Follow manufacturer's requirements if more restrictive.

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 General

All materials shall be approved for contact with potable water and underwater use. Manufacturer's labels and instruction shall be followed including environmental conditions at time of application.

2.1.2 Water

Water for cleaning, mixing and curing shall be fresh, clean, potable, and free of injurious amounts of oil, acid, salt, or alkali. Contractor shall provide all potable water required for their use. There is Government-furnished non-potable water available as specified in Section:

01 51 00.00 28 TEMPORARY UTILTIES.

2.2 EQUIPMENT

Assemble at the site of the work sufficient equipment that is dependable, appropriate and adequate to accomplish the work specified. Deliver the equipment a sufficient time before the start of repairs to permit thorough inspection, calibration of weighing and measuring devices, adjustment of parts, and the making of any repairs that may be required. Machines, tools, and equipment used in the performance of the work shall be maintained in satisfactory condition at all times. Maintain the equipment in good working condition. Provide dust suppression on equipment as needed.

2.3 Expansion Joint Materials

2.3.1 Backing

Backing shall be 25 to 33 percent oversize for closed cell material, unless otherwise indicated. Cellular rubber sponge backing shall be

SECTION 03 01 32.00 28 Page 3

ASTM D1056, Type 2, round. Polyvinyl chloride (PVC) backing shall be ASTM D1667, open-cell foam, round. Synthetic rubber backing shall be ASTM C509, preformed rods. Manufacturer's data shall be submitted for approval.

2.3.2 Sealants

Sealants shall be polysulfide and shall conform to ASTM C920, Class 25, Use T, Grade NS for vertical joints and Grade P for horizontal joints.

The sealant shall be installed according to the manufacturer's instruction. A primer for bonding the sealant to the specified surfaces shall be applied per the manufacturer's instructions. Manufacturer's data shall be submitted for approval.

2.4 Polymer-Modified Cement

Polymer-modified cement shall be suitable for the application to walls and floors with the surface condition and use intended. Polymer-modified cement shall be Raeco "Skimwall" or equal. Submittal shall include manufacturer's data showing product meets the stated requirements.

Polymer-modified cement shall meet the following requirements:

a. Air-entrained to provide protection from freeze-thaw

b. Minimum 4,000 psi compressive strength

c. Minimum 500 psi bond strength at full cure

2.4.1 Manufacturer's Instructions

Follow the manufacturer's recommendations specific to the resurfacing material to be installed. This includes, but is not limited to, all recommendations regarding environmental conditions such as temperature, humidity, and moisture content of surface to be coated. Instructions should include curing requirements, length of time after placement before epoxy paint system can be applied, and length of time after placement before ponds can be filled with water. Manufacturer's instructions and Material Safety Data Sheets (MSDS) shall be included in the submittal.

PART 3 EXECUTION

3.1 PROTECTION

3.1.1 Protection of Existing Features

Take all necessary precautions to insure against damage to existing structures, and repair or replace any damage to such items as approved by the Contracting Officer at no additional cost to the Government.

3.1.2 Protection of Personnel

Perform all work in accordance with EM 385-1-1 . To protect personnel from overexposure to toxic materials, conform to the applicable manufacturer's Material Safety Data Sheets (MSDS) or local regulations. Ensure that adequate measures are in place to protect workers, facility operation personnel and the public from injury due to the operations being performed.

3.2 SURFACES TO BE COATED

Apply polymer-modified cement coating on all concrete surfaces of the burrows pond floors and on concrete wall surfaces to a height of 44 inches

SECTION 03 01 32.00 28 Page 4 Amendment 1 s0cwh1rw Line s0cwh1rw Highlight above the pond floor.

3.3 PROJECT CONDITIONS

Do not perform the work if temperatures are below 45 degrees or above 100 degrees Fahrenheit. Do not apply new materials if precipitation is expected within a twenty-four hour period. Follow manufacturer's requirements if more restrictive.

3.4 MIXING MATERIALS

Make batches small enough to ensure placement before binder sets. Mix materials in accordance with manufacturer's recommendations.

3.5 SURFACE PREPARATION

3.5.1 General

The burrows ponds to be rehabilitated will be drained and pressure washed by the Government prior to on-site work by the Contractor. Contractor will be responsible for any additional surface preparation required prior to resurfacing with the polymer-modified cement. Perform final cleaning immediately prior to placement of the repair material. The surface shall be dry with no standing water on the surface upon which concrete is placed.

Protect all work from contamination during all phases of cleanup and preparation prior to repair.

3.5.2 Waste Water Disposal

Dispose of waste water employed in cleaning of concrete surfaces and joints in a manner such that the waste water does not stain, discolor, or affect exposed surfaces of the structures, or damage the environment of the project area. The method of disposal shall meet all Federal, State, and local requirements.

3.6 SURFACE REPAIRS

3.6.1 Polymer-Modified Cement

A bonding agent should be used either prior to placing the polymer-modified cement material or incorporated as part of the material.

If appropriate, prime surfaces prepared to receive repair material using the manufacturer's recommended bonding agent and in accordance with the manufacturer's instructions. Trowel apply polymer-modified cement before the bonding agent dries as recommended by the manufacturer, to create a smooth surface for painting. Cure polymer-modified material as recommended by the manufacturer.

3.7 CLEANING AND RESEALING JOINTS

3.7.1 Preparation of Joints

Thoroughly clean the joints to remove all laitance, loose or deteriorated filler, and old sealant from the sides and upper edges of the joint space to be sealed. Clean joints to sufficient depth to remove all loose material and debris and to permit placement of the backing material and sealant as shown on the drawings. Concrete surfaces shall be dry at the time of sealant application.

SECTION 03 01 32.00 28 Page 5 Amendment 1

3.7.2 Installation of Sealant

Store and apply the primer and sealant in accordance with the manufacturer's written safety instructions and precautions and using manufacturer recommended procedures.

3.7.2.1 Time of Application

Seal joints immediately following final cleaning of the joint sidewalls and following the placement of the bond breaker (as required by the manufacturer) and back-up material. Reclean open joints that cannot be sealed under the conditions specified. When rain interrupts sealing operations, allow joints to dry prior to installing the sealant.

3.7.2.2 Backing Material

Plug or seal off the lower portion of the joint opening using a backing material to prevent the entrance of the sealant below the specified depth. Take care to ensure that the backing material is placed at the specified depth and is not stretched or twisted during installation.

3.7.2.3 Sealing Joints

Perform a final cleaning with compressed air immediately preceding, but not more than 50 feet ahead of the sealing operations. The joint surfaces shall be dry at the time the sealant is installed. Apply primer evenly to the joint faces in accordance with the manufacturer's instructions before placement of the back-up material. Place backing material after the primer is applied. Fill the joints from the bottom up to the surface of the concrete. Depth of sealant shall be one-half the joint width or as recommended by the sealant manufacturer. Commence sealing of joints at the bottom of the wall. Remove excess or spilled sealant from the concrete surface by approved methods and discard. Install the sealant using a gun cartridge in such a manner as to prevent the formation of voids and entrapped air. Do not install sealant material using gravity methods or pouring pots. Check joints frequently to ensure that the newly installed sealant is cured to a tack-free condition within the time specified. Tool the sealant concave immediately after application.

3.8 INSPECTIONS

3.8.1 Final Inspection

Following completion of the work, inspect surfaces for damage, staining, and other distresses. Inspect for cracking, crazing, delamination, unsoundness, staining and other defects. Repair all surfaces exhibiting defects as directed at no cost to the Government.

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SECTION 03 01 32.00 28 Page 6

SECTION TABLE OF CONTENTS

DIVISION 09 - FINISHES

SECTION 09 97 02

PAINTING: HYDRAULIC STRUCTURES

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 QUALIFICATIONS

1.3.1 Coating Thickness Gage Qualification

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 AMBIENT CONDITIONS

PART 2 PRODUCTS

2.1 MANUFACTURER'S DATA

2.2 PAINT SAMPLES

PART 3 EXECUTION

3.1 CLEANING AND PREPARATION OF SURFACES TO BE PAINTED

3.1.1 General Requirements

3.1.2 Concrete Surfaces

3.2 PAINT APPLICATION

3.2.1 General

3.2.2 Mixing and Thinning

3.2.3 Time Between Surface Preparation and Painting

3.2.4 Method of Paint Application

3.2.5 Coverage and Film Thickness

3.2.6 Progress of Painting Work

3.2.7 Drying Time Prior to Immersion

3.2.8 Protection of Painted Surfaces

3.3 PAINT SYSTEMS APPLICATION

3.3.1 System No. 21

3.3.2 Protection of Nonpainted Items and Cleanup

3.4 INSPECTION

3.5 PAINTING SCHEDULES

3.5.1 Extent of Painting

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SECTION 09 97 02 Page 1

SECTION 09 97 02

PAINTING: HYDRAULIC STRUCTURES

PART 1 GENERAL

1.1 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM D6132 (2013) Standard Test Method for Nondestructive Measurement of Dry Film Thickness of Applied Organic Coatings Using an Ultrasonic Coating Thickness Gage

U.S. DEPARTMENT OF DEFENSE (DOD)

MIL-DTL-24441 (2009; Rev D) Paint, Epoxy-Polyamide, General Specification for

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. When used, a designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

Manufacturer's Product Data Sheet; G, GE

Coating Thickness Gage Qualification; G, GE

SD-06 Test Reports

Inspection Reports

SD-07 Certificates; I C

Epoxy Paint; G C

1.3 QUALIFICATIONS

Qualifications and experience shall comply with the following.

1.3.1 Coating Thickness Gage Qualification

Submit Coating Thickness Gage Qualification documentation of manufacturer's data for all coating thickness gages. Ultrasonic coating thickness gages conforming to ASTM D6132 shall be used to make all coating

SECTION 09 97 02 Page 2 thickness measurements on concrete.

1.4 DELIVERY, STORAGE, AND HANDLING

Process and package paints to ensure that within a period of one year from date of manufacture, they will not gel, liver, or thicken deleteriously, or form gas in the closed container. Paints, unless otherwise specified or permitted, shall be packaged in standard containers not larger than 5 gal, with removable friction or lug-type covers. Each container of paint or separately packaged component thereof shall be labeled to indicate the purchaser's order number, date of manufacture, manufacturer's batch number, quantity, color, component identification and designated name, and formula or specification number of the paint. Paint shall be delivered to the job in unbroken containers. Paints that can be harmed by exposure to cold weather shall be stored in ventilated, heated shelters. All paints shall be stored under cover from the elements and in locations free from sparks and flames.

1.5 AMBIENT CONDITIONS

Paint shall be applied only to surfaces that are above the dew point temperature and that are completely free of moisture as determined by sight and touch. Paint shall not be applied to surfaces upon which there is detectable frost or ice. Except as otherwise specified, the temperature of the surfaces to be painted and of air in contact therewith shall be not less than 45 degrees F during paint application nor shall paint be applied if the surfaces can be expected to drop to 32 degrees F or lower before the film has dried to a reasonably firm condition. During periods of inclement weather, painting may be continued by enclosing the surfaces and applying artificial heat, provided the minimum temperatures and surface dryness requirements prescribed previously are maintained.

Paint shall not be applied to surfaces heated by direct sunlight or other sources to temperatures that will cause detrimental blistering, pinholing, or porosity of the film.

PART 2 PRODUCTS

2.1 MANUFACTURER'S DATA

Submit Manufacturer's Product Data Sheet for each type of paint used.

Data sheet shall include recommended applications, surface preparation, mixing and thinning, application instructions, and application conditions.

2.2 PAINT SAMPLES

Submit product samples from each batch of paint proposed for use to the U.S. Army Corps of Engineers Construction Engineering Research Lab (CERL Lab)for testing. Allow at least 30 days for testing of paint samples.

Sample size shall be 1-quart. Each sample shall be labeled to indicate formula or specification number and nomenclature, batch number, batch quantity, color, date made, and applicable project contract number.

Submit a certificate from CERL Lab attesting that each epoxy paint sample tested is approved for use on this contract. Costs for initial testing will be borne by the Government. Costs for retesting rejected material will be deducted from payments to the Contractor at the rate of 500 dollars for each paint sample retested.

Information about CERL Lab may be obtained at the following website:

SECTION 09 97 02 Page 3 http://www.cecer.army.mil/td/tips/product/details.cfm?ID=541

PART 3 EXECUTION

3.1 CLEANING AND PREPARATION OF SURFACES TO BE PAINTED

3.1.1 General Requirements

Clean surfaces to be painted before applying paint. Protect items not to be prepared or coated from damage by the surface preparation methods.

Cleaning and painting shall be so programmed that dust or other contaminants from the cleaning process do not fall on wet, newly painted surfaces, and surfaces not intended to be painted shall be suitably protected from the effects of cleaning and painting operations.

3.1.2 Concrete Surfaces

Concrete surfaces skim coated with polymer-modified cement shall be properly cured in accordance with the manufacturer's instructions prior to painting. Concrete surfaces not skim coated shall be cleaned to remove loosely adherent materials such as dirt, dust, laitance, efflorescence, bleed water residues, or other foreign substances by wire or fiber brushing, scrapers, light abrasive blasting, or other approved means.

Abrasive blasting, unless otherwise specifically authorized, shall be restricted to the wet or vacuum type. Surface glaze, if present, shall be removed by light blasting or by scrubbing with a 5-percent solution of phosphoric acid. The texture of the surface after etching shall be roughly equivalent to the texture of an 80-120 grit sandpaper. If acid etching is used, the surface shall be thoroughly rinsed with clean water to remove all traces of the acid. Prior to painting, all pond surfaces shall be adequately dry. Adequate drying time for skim coated surfaces shall be determined by applying 2-foot square clear polyethylene test patches to skim coated repair areas. The test patch shall remain in place for at least 12 hours after which there shall be no trace of moisture on the polyethylene and cement skim coat.

3.2 PAINT APPLICATION

3.2.1 General

The finished coating shall be free from holidays, pinholes, bubbles, runs, drops, ridges, waves, laps, excessive or unsightly brush marks, and variations in color, texture, and gloss. Application of initial or subsequent coatings shall not commence until the Contracting Officer has verified that atmospheric conditions and the surfaces to be coated are satisfactory. Each paint coat shall be applied in a manner that will produce an even, continuous film of uniform thickness. Edges, corners, crevices, seams, joints and other surface irregularities shall receive special attention to ensure that they receive an adequate thickness of paint. Spray equipment shall be equipped with traps and separators and where appropriate, mechanical agitators, pressure gauges, pressure regulators, and screens or filters. Air caps, nozzles, and needles shall be as recommended by the spray equipment manufacturer for the material being applied. Airless-type spray equipment may be used only on broad, flat, or otherwise simply configured surfaces, except that it may be employed for general painting if the spray gun is equipped with dual or adjustable tips of proper types and orifice sizes.

SECTION 09 97 02 Page 4

3.2.2 Mixing and Thinning

Paints shall be thoroughly mixed, strained where necessary, and kept at a uniform composition and consistency during application. Where necessary to suit conditions of the surface temperature, weather, and method of application, the paint may be thinned immediately prior to use. Thinning shall generally be limited to the addition of not more than 1 pint per gal of the proper thinner; this general limitation shall not apply when more specific thinning instructions are provided. Paint that has been stored at low temperature, shall be brought up to at least 70 degrees F before being mixed and thinned, and its temperature in the spray tank or other working container shall not fall below 60 degrees F during the application. Paint that has deteriorated in any manner to a degree that it cannot be restored to essentially its original condition by customary field-mixing methods shall not be used and shall be removed from the project site.

3.2.3 Time Between Surface Preparation and Painting

Surfaces that have been cleaned and/or otherwise prepared for painting shall be primed as soon as practicable after such preparation has been completed but, in any event, prior to any deterioration of the prepared surface.

3.2.4 Method of Paint Application

Paint shall be applied by brush, roller, or spray. Special attention shall be directed toward ensuring adequate coverage of edges, corners, crevices, pits, and other surface irregularities.

3.2.5 Coverage and Film Thickness

Film thickness or spreading rates shall be as specified hereinafter.

Where no spreading rate is specified, the paint shall be applied at a rate consistent with the manufacturer's written instructions. In any event, the combined coats of a specified paint system shall completely hide base surface and the finish coats shall completely hide undercoats of dissimilar color.

3.2.6 Progress of Painting Work

Where field painting on any type of surface has commenced, the complete painting operation, including priming and finishing coats, on that portion of the work shall be completed as soon as practicable, without prolonged delays. Sufficient time shall elapse between successive coats to permit them to dry properly for recoating, and this period shall be modified as necessary to suit adverse weather conditions. Paint shall be considered dry for recoating when it feels firm, does not deform or feel sticky under moderate pressure of the finger, and the application of another coat of paint does not cause film irregularities such as lifting or loss of adhesion of the undercoat. All coats of all painted surfaces shall be unscarred and completely integral at the time of application of succeeding coats. At the time of application of each successive coat, undercoats shall be cleaned of dust, grease, overspray, or foreign matter by means of airblast, solvent cleaning, or other suitable means. Cement and mortar deposits on painted steel surfaces, not satisfactorily removed by ordinary cleaning methods, shall be brush-off blast cleaned and completely repainted as required. Undercoats of high gloss shall, if necessary for establishment of good adhesion, be scuff sanded, solvent wiped, or

SECTION 09 97 02 Page 5 otherwise treated prior to application of a succeeding coat. Field coats on metal shall be applied after erection except as otherwise specified and except for surfaces to be painted that will become inaccessible after erection.

3.2.7 Drying Time Prior to Immersion

Minimum drying periods after final coat prior to immersion shall be at least 5 days for epoxy systems. The minimum drying period shall be increased two fold if the drying temperature is below 65 degrees F and/or if the immersion exposure involves considerable abrasion.

3.2.8 Protection of Painted Surfaces

Where shelter and/or heat are provided for painted surfaces during inclement weather, such protective measures shall be maintained until the paint film has cured and discontinuance of the measures is authorized.

Items that have been painted shall not be walked on or otherwise disturbed until the paint coat is fully cured and hard.

3.3 PAINT SYSTEMS APPLICATION

The required paint systems and the surfaces to which they shall be applied are shown in this paragraph, and/or in the drawings. Supplementary information follows.

3.3.1 System No. 21

Paint shall be applied with a minimum of two single coats to produce an average dry film thickness totaling 6.0 mils. When applying MIL-DTL-24441 , the type of thinner, amount of thinning, and required induction time shall be as recommended by the manufacturer. The drying time between coats shall not be less than 8 hours nor more than 96 hours.

3.3.2 Protection of Nonpainted Items and Cleanup

Walls, equipment, fixtures and all other items in the vicinity of the surfaces being painted shall be maintained free from damage by paint or painting activities. Paint spillage and painting activity damage shall be promptly repaired.

3.4 INSPECTION

Inspect and document all work phases and operations on a daily basis.

Submit daily Inspection Reports. As a minimum the daily report shall contain the following:

a. Inspections performed, including the area of the structure involved and the results of the inspection.

b. Surface preparation operations performed, including the area of the structure involved, the mode of preparation, the kinds of solvent, abrasive, or power tools employed, and whether contract requirements were met.

c. Thinning operations performed, including thinners used, batch numbers, and thinner/paint volume ratios.

d. Application operations performed, including the area of the structure

SECTION 09 97 02 Page 6 involved, mode of application employed, ambient temperature, substrate temperature, dew point, relative humidity, type of paint with batch numbers, elapsed time between surface preparation and application, elapsed time for recoat, condition of underlying coat, number of coats applied, and if specified, measured dry film thickness or spreading rate of each new coating.

3.5 PAINTING SCHEDULES

SYSTEM NO. 21

Items or surfaces to be coated:

Fish rearing pond walls and floors; concrete surfaces only

SURFACE PREPARATION 1st & 2nd COAT 3rd COAT

As specified MIL-DTL-24441 ,Dark Gray RO1.8, Formula 153, Type

III

as needed to obtain specified thickness

3.5.1 Extent of Painting

Paint shall be applied to all concrete floor surfaces of the ponds and concrete wall surfaces to a height of 44 inches above the pond floor.

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