W9126G21B0001_Amendment07_13NOV2020.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04 EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The Solicitation for the Information Systems Faciility, White Sands Missile Range is amended as follows.

See SF30 Continuation Sheet(s)

NOTE: Proposal Receipt date has been extended to 19 November 2020; at 10:00 a.m., CT.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 3

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA 15C. DATE SIGNED 15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer) (Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X 9A. AMENDMENT OF SOLICITATION NO.

W9126G21B0001

X 9B. DATED (SEE ITEM 11)

13 OCT 2020

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

13 NOV 2020

CODE

US ARMY ENGINEER DISTRICT, FORT WORTH

ATTN: CESWF-CT

819 TAYLOR ST, ROOM 2A19

P.O. BOX 17300

FORT WORTH TX 76102-0300

W9126G 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODE CODE

EMAIL: TEL:

W9126G21B0001

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

CHANGES TO SOLICITATION W9126G21B0001

CHANGES TO THE SPECIFICATIONS

1. New Specifications - Include the new sections listed below, noted W9126G21B0001, AMENDMENT 0007

03 35 43 DIAMOND POLISHING CONCRETE FLOORS

10 51 16 BENCHES

2. Replacement Specifications - Replace the sections listed below with the revised section(s) of the same name and number, noted W9126G21B0001, AMENDMENT 0007

01 00 00.00 44 CPNSTRUCTION SCHEDULE

01 35 20.00 44 SPECIAL PROJECT PROCEDURES FOR WHITE SANDS MISSLE RANGE

01 45 35 SPECIAL INSPECTIONS - CHECKLIST

01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

01 78 00 CLOSEOUT SUBMITTALS

04 20 00 UNIT MASONRY

07 21 13 BOARD AND BLOCK INSULATION

07 60 00 FLASHING AND SHEET METAL

08 71 00 DOOR HARDWARE

27 10 00 BUILDING TELECOMMUNICATIONS CABLING SYSTEM

CHANGES TO THE DRAWINGS

1. Replacement Drawings - Replace the drawings listed below with the attached revised drawings(s) of the same name and number, noted W9126G21B0001, AMENDMENT 0007

A-105 A-106 A-310 A-520 A-602 A-603 A-604 A-702 C-101

CU-100

CU-102

E-001

EP-601

ES-602

ET-402

ET-602

ET-603

ET-604

G-101 G-103 L-501A M-002

MI-312

W9126G21B0001

S-002 S-301 S-302 S-303 S-601

End of Summary of Changes

WSMR Information Systems Facility Vers 3 WSMRISF3

SECTION 03 35 43

DIAMOND POLISHING CONCRETE FLOORS

AMENDMENT NO. 0007

<AM#0007> PART 1 GENERAL

1.1 DEFINITIONS

The term "bonded abrasive polished concrete" as used in this specification is defined as: The processing of a concrete surface by means of a multi step mechanical process that involves cutting and/or refining the surface to its maximum potential with a bonded abrasive medium where each step cuts progressively finer microscopic peaks and valleys until the desired level of reflective clarity and sheen is achieved. Bonded abrasive polished concrete has a high degree of reflective clarity like a mirror.

Processing: The act of changing a concrete surface by means of a multistep mechanical process that involves cutting and/or refining thesurface to the maximum potential with a bonded abrasive medium whereeach step cuts progressively finer microscopic peaks and valleys.

Each step must be refined to its maximum potential in which the abrasive no longer cuts or cuts very little under its current weight.

Bonded Abrasives: Abrasive medium that is held within a bonding that erodes away to expose new abrasive medium as it is used.

Aggregate Exposure: Grinding a concrete surface with bonded abrasives, in as many abrasive grits necessary, to achieve the degree of surface cut desired.

Surface Cut: The degree to which the surface of the concrete is abraded. These cuts are defined as Surface Cream, Fine Aggregate, Medium Aggregate, and Large Aggregate

Reflective Clarity: Before application of a polish guard, polishing a concrete surface with the minimum number of bonded abrasives as indicated to achieve the desired degree of sharpness and crispness of the reflection of overhead objects when viewed 5 feet above and perpendicular to a surface.

Reflective Sheen: The degree of gloss reflected from a surface when viewed at 20 feet from and at an angle to a surface.e

1.2 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.

ACI INTERNATIONAL (ACI)

ACI 308 (2001) Guide to Curing Concrete

SECTION 03 35 43 Page 1

W9126G21B0001, AMENDMENT 0007

ASTM INTERNATIONAL (ASTM)

ASTM E1643 - 09 Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs.

ASTM E1745 - 09 Standard Specification for Water Vapor Retarders Useq in Contact with Solid or Granular Fill under Concrete Slabs

CONCRETE POLISHING ASSOCIATION OF AMERICA (CPAA)

CPAA

1.3 SUBMITTALS

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

submittals not having a "G" designation are for information only. When used, a designation following the "G" 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-02 Shop Drawings

Detail Drawings;G, DO

Shop drawings shall include a location plan indicating all floor areas to receive polished concrete.

SD-03 Product Data

Void & Crack Repair Materia;G, DO

Solvent Based Dye;G, DO

Penetrating Agent;G, DO

Densifier;G, DO

Joint Filler;G, DO

Sealer (Stain Protection);G, DO

Cleaner;G, DO

Manufacturer's technical literature for each product indicated, specified, or required. Include manufacturer's technical data, MSDS Sheets, application instructions, and recommendations.

SD-06 Test Reports

Static Coefficient of Friction Test;G, DO

Reports of testing specified in PART 3 "Field Quality Control" paragraph.

SD-07 Certificates

SECTION 03 35 43 Page 2

Installer Qualifications

Data for company, principal personnel, experience, and training specified in PART 1 "Quality Assurance" paragraph..

SD-10 Operation & Maintenance Data

Maintenance Instructions

Include manufacturer's instructions for maintenance of installed work, including methods and frequency recommended for maintaining optimum condition under anticipated use.

Include precautions against cleaning products and methods which may be detrimental to finishes and performance.

SD-11 LEED Submittals

Liquid Applied Products

Provide LEED documentation relative to low-VOC credits for all concrete dyes, densifiers, sealants, and cleaners in accordance with LEED Reference Guide for Green Building Design and Construction. include documentation in the project LEED Documentation Notebook.

1.4 DELIVERY, STORAGE, AND HANDLING

Deliver all products to job site in an undamaged condition. Stack materials to ensure ventilation and drainage. Protect against dampness before and after delivery. Store materials under cover in a well-ventilated enclosure and protect against extreme changes in temperature and humidity. Do not store products in building until wet trade materials are dry.

1.5 QUALITY ASSURANCE

1.5.1 Polisher Qualifications

Polisher Qualifications shall include:

A. Experience: Polisher Company shall be experienced in performing specified work similar in design, products, and extent to scope of this Project; with a record of successful in-service performance;

and with sufficient production capability, facilities, and personnel to produce specified work.

B. Supervision: Polisher Company shall provide a competent supervisor who is at Project during times specified work is in progress, and is currently certified as Craftsman or Master Craftsman by CPAA.

C. Manufacturer Qualification: Approved byproduct manufacturer to apply liquid applied products

SECTION 03 35 43 Page 3

1.5.2 Static Coefficient of Friction

The contractor shall provide a walkway auditor, certified by NFSI, to test polished floors for static coefficient of friction according to

ANSI/NFSI B101.1.

1.5.3 Testing

Testing shall achieve not less than 0.5 for level floor surfaces as determined by quality control testing according toANSI/NFSI B101.1.

1.6 FIELD MOCK-UP

Before performing work of this Section, provide as many field mock-ups required to verify selections made under submittals and to demonstrate aesthetic effects of polishing. Approval does not constitute approval of deviations from Contract Documents, unless such deviations are specifically approved by COR in writing. The mock-up procedure shall include the following provisions and requirements:

A. Grind, hone, and polish 10 ft square floor area for each finish approved under sample submittals; include edges and joints

B. Use same personnel, including supervisors, which will perform work.

C. Install products and materials according to specified requirements.

D. Work shall be representative of those to be expected for work.

E. Finish various components to show maximum variation that will exist in work.

F. Approval is for following aesthetic qualities:

1) Compliance with approved submittals.

2) Uniformity of exposed aggregate.

3) Uniformity of sheen.

G. Obtain project COR approval before starting work on Project.

H. Protect approved field mock-ups from elements with weather resistant covering.

I. Maintain field mock-ups during construction in an undisturbed condition as a standard for judging completed work.

J. Do not demolish, alter, or remove field mock-ups until acceptable to the project COR.

1.7 PRE-INSTALLATION CONFERENCE

Prior to concrete polishing for scheduled areas, conduct conference at Project to comply with requirements of applicable Division 01 Sections.

1.7.1 Attendees

The following attendees shall be present for this conference:

SECTION 03 35 43 Page 4

A. USACE Resident Office Project Engineer B. Contractor, including supervisor.

C. Concrete polisher, including supervisor.

D. Technical representative of liquid applied product manufacturers.

E. Walkway auditor.

1.7.2 Conference Agenda

Polisher shall demonstrate understanding of work required by reviewing and discussing procedures for, but not limited to, following:

A. Tour mock-up and representative areas of required work, discuss and evaluate for compliance with Contract Documents, including substrate conditions, surface preparations, sequence of procedures, and other preparatory work performed by other installers.

B. Review Contract Document requirements.

C. Review approved submittals.

D. Review procedures, including, but not limited to:

1) Details of each step of grinding, honing, and polishing operations.

2) Application of liquid applied products.

3) Protecting concrete floor surfaces until polishing work begins.

4) Protecting polished concrete floors after polishing work is completed.

1.7.3 Conference Report

Record discussions, including decisions and agreements reached, and furnish copy of record to each party attending.

1.8 FIELD CONDITIONS

1.8.1 Damage and Stain Prevention

Take precautions to prevent damage and staining of concrete surfaces to be polished to include the following:

1) Prohibit vehicle parking over concrete surfaces to be polished.

2) Prohibit pipe cutting operations over concrete surfaces to be polished.

3) Prohibit storage of any items over concrete surfaces to be polished for not less than 28 days after concrete placement.

4) Prohibit ferrous metals storage over concrete surfaces to be polished.

5) Protect from petroleum, oil, hydraulic fluid, or other liquid dripping from equipment working over concrete surfaces to be polished.

SECTION 03 35 43 Page 5

6) Protect from acids and acidic detergents contacting concrete surfaces to be polished.

7) Protect from painting activities over concrete surfaces to be polished.

1.8.2 Environmental Limitations

Comply with manufacturer's written instructions for substrate temperature, ambient temperature, moisture, ventilation, and other conditions affecting liquid applied product application.

PART 2 PRODUCTS

2.1 LIQUID APPLIED PRODUCTS

All liquid applied products used in the completion of dyed, polished concrete shall be from the same manufacturer and shall be formulated for compatibility with each other.

2.1.1 Solvent Based Dye

Solvent based concrete dye shall be formulated using extremely fine molecules of color designed to penetrate and color interior concrete surfaces. The solvent-based dye shall be packaged in powder form to be mixed with acetone by the application contractor.

2.1.2 Penetrating Agent

A penetrating agent, compatible, and recommended by the dye manufacturer, shall be added to the dye mixture, when necessary, to provide an additional time for dye penetration before flashing of the acetone occurs.

2.1.3 Densifier

The spray-applied liquid densifier shall be a odorless, non-hazardous, silicate that penetrates concrete to react with free lime and calcium hydroxide to produce permanent chemical reaction that hardens and densifies the concrete surface. The sealer shall be formulated to perform the following:

1) The densifier shall act to lock color into concrete matrix, minimizing color migration or diffusion. The densifier shall chemically bond to other liquid components. The densifier shall improve surface resistance to liquid penetration and stains.

2) Improves abrasion resistance for better wear characteristics.

3) Minimizes dusting for healthier indoor air quality (IAQ.)

4) Prepares surface for high gloss diamond polishing.

5) Penetrates slab surface to deliver solids content deep into surface layer.

6) Reduces labor and time required for installation compared to some densifiers, because it is spray-applied, does not require labor intensive scrubbing-in or gel formation, is fast reacting, requires minimal dwell time, and does not require scrubbing-off or wet caustic

SECTION 03 35 43 Page 6 residue disposal.

2.1.4 Sealer

The polished concrete sealer shall be a water-based, penetrating, non-film forming, stain resistant, food resistant, chemical stain resistant, impregnating sealant designed to be used on concrete surfaces previously densified. The sealer shall be a penetrating stain repellant that is specifically formulated for the protection of polished/dyed concrete from oil and water-based stains. The product shall provide a "window of opportunity" to clean up spills prior to staining, yet still retain the densified floor's breathability. The sealer shall provide a non-slip surface.

2.1.5 Sealer

The contractor shall provided a concentrated liquid cleaning agent specifically formulated for polished concrete floors, in an amount to clean all polished concrete floors on a weekly basis for a period of one year. In addition, the contractor shall supply the contact and ordering information for additional cleaner by the government.

2.2 COMPOUNDS

2.2.1 Joint Filler

Joint filler shall be a self-leveling, non-staining,100% solids, two component, 1:1 ratio, Polyurea Elastomer product. The joint filler shall have color matching capability.

2.2.2 Void & Crack Repair Material

The void and crack repair material shall be a rapid-set, high strength, low viscosity, urethane formulation. The material shall be a two part, 1:1 system, 100% solids and shall be designed for rebuilding and repairing concrete voids and cracks.

2.3 EQUIPMENT

The polished floor contractor shall provide all equipment and supplies necessary to complete the floor dying and polishing process and provide a quality finished product which complies with this specification.

2.3.1 Grinding and Polishing Equipment

Grinding and polishing equipment shall include but is not limited to:

A. Variable speed, multiple head, counter-rotating, walk-behind machine with not less than 600 pounds of down pressure on grinding or diamond polishing pads.

B. If dry grinding, honing, or polishing, use dust extraction equipment with flow rate suitable for dust generated, with squeegee attachments.

C. Edge Grinding and Polishing Equipment: Hand-held or walk-behind machines which produces same results, without noticeable differences, as field grinding and polishing equipment.

D. Burnishing Equipment: High speed walk-behind or ride-on machines

SECTION 03 35 43 Page 7 capable of generating 1000 to 2000 revolutions per minute and with sufficient head pressure of not less than 20 pounds to raise floor temperature by 20 degrees F.

2.3.2 Pads

Pads for grinding and polishing equipment shall include but are not limited to:

A. Metal Bonded Pads: Grinding pads with embedded industrial grade diamonds of varying grits fabricated for mounting on equipment.

B. Resin Bonded Pads: Polishing pads with embedded industrial grade diamonds of varying grits fabricated for mounting on equipment.

C. Burnishing Pads: Maintenance pads for use with high speed burnishing equipment.

PART 3 EXECUTION

3.1 CONCRETE FLOOR SLAB RECOMMENDATIONS

The following materials and procedures are recommended by CPA", to insure the satisfactory installation and long term appearance retention of a polished concrete floor.

3.1.1 Below Slab Vapor Barrier

Moisture movement from earth subgrade through the concrete slab-on-grade to the concrete surface can adversely affect a polished finish. A high-performance vapor barrier between the subgrade and the concrete is extremely important, therefore CPAA recommends a membrane that is rated Class A according to ASTM E1745 - 09 that has the following properties:

A. Permeance: Not more than 0.1 perms (grains/sq ft/hr/in-Hg) after conditioning testing according to Section 7.1 of ASTM E154.

B. Thickness: Not less than 15 mils.

C. Tensile Strength: Not less than 45 lbf/in.

D. Puncture Resistance: 2200 grams.

Installation of the vapor barrier shall comply with ASTM E1643 - 09.

3.1.2 Concrete Mix Design

In addition to ACI (American Concrete Institute) standards for mixing concrete, CPAA recommends the following:

A. For the portion of the concrete that will be polished, each mix ingredient should be from the same source, from the same respective batch, and each delivered to the concrete producer in one delivery.

B. Type I portland cement according to ASTM C150.

c. A water-to-cement (W/C) ratio is .45.

D. One of the strengths of diamond polished concrete is the range of

SECTION 03 35 43 Page 8 aggregates that can be exposed, therefore a uniformly graded mix of not less than 3 aggregate sizes - fine, intermediate, and large - will yield the best visual quality.

E. The mix should not be air entrained.

F. Inclusion of admixtures, plasticizers, slag, fly ash, or other products replacing portions of the portland cement in the concrete mix is not recommended. If any of these are used, the total volume should not exceed 20 percent of the portland cement volume.

G. Admixtures should not be calcium chloride based.

H. During batching, the incoming material consistency should be monitored and controlled.

I. The compressive strength should not be less than 3,500 psi.

3.1.3 Finishing Concrete

In addition to ACI standards for finishing concrete, CPAA recommends the following

A. After placement of the concrete mix, strike off the surface using a laser screed, then bull float at 90 degrees to the screed pull direction, vib and consolidate, and level to specified elevation. A 10 foot check rod is recommended, however, if not available bull floats should be 6 foot long; smaller bull floats may be used on sloping surfaces.

B. When placing concrete mix at edges, use a 36 inch long metal or wood edged screed and run parallel with the formwork or edge after the initial screeding and before floating. Hand floating should be parallel to the edge and performed in 24 inch increments to avoid lifting or depressing the surface. Avoid pulling excessive amounts of the concrete mix to the edges by either not using hand tools more than 24 inches from the edge, or floating in a fan direction.

C. When little or no bleed water is present and concrete mix has sufficiently hardened to support finishing equipment without causing imperfections in the surface, begin machine floating using pans and make two passes.

D. To improve the possibility of achieving the specified flatness/levelness requirements, check and re-straighten if necessary using a 10 foot or longer highway straight edge or bump cutter.

E. When machine floating edges, use pans and overrun the formed edge by 5 inches. For both walk-behind and riding equipment, make the first pass along the edge with the left side, or cutting side, of the equipment to pull down high spots of the surface. Make a second pass along the edge with the right side, or filling side, of the equipment to fill low spots in the surface.

F. Steel trowel the surface in three passes without burning the surface or burning the aggregate (plastic trowel blades will prevent burning the aggregate).

G. Lightly hand or machine tool edges construction joints and exercise

SECTION 03 35 43 Page 9 care that edges are not depressed or chattered along bulkheads, formed edges, columns, and pipe penetrations.

H. Do not dust the finished surface with dry portland cement or sand to accelerate curing and drying.

3.1.4 Concrete Curing and Drying

CPAA, recommends evaporation control and wet curing concrete slabs according to ACI 308 without the use of topically applied curing compounds.

Do not use liquid curing materials; those that leave a bond barrier to dye and densifier penetration, especially dissipative cures. Cure concrete flatwork with new, unwrinkled, non-staining, high quality curing paper or a breathable curing blanket. Do overlap paper or blankets. Tape seams.

Placement of wood on curing slab may leave "ghosting" on slab, or tannin stains if allowed to get wet. While topically applied curing compounds may assist with curing during the first few days after concrete placement, they retard concrete drying in the weeks and months after curing and may cause the slab to be too wet when the time comes for diamond polishing or floor covering application. Hardeners should not be applied to concrete. Surfaces shall be cured using the same method and different sections (pours) should be chemically dyed when the concrete is the same age.

3.1.5 Floor Flatness/Levelness Criteria

CPAA, recommends specifying the following tolerances:

Specified Overall Value Minimum Local Value

Floor Flatness 50 35

Floor Levelness 30 20

The floor flatness and levelness should be tested within 8 hours after completion of the final troweling operation according to ASTM 1155 by an independent testing agency experienced with the testing procedure and possessing the necessary equipment. Additionally, a remedy for out-of-tolerance work should be specified.

3.2 EXAMINATION

3.2.1 Acceptance of Surfaces and Conditions

Examine substrates to be polished for compliance with requirements and other conditions affecting performance. Proceed only when unsatisfactory conditions have been corrected in a manner complying with Contract Documents. Starting work within a particular area will be construed as acceptance of surface conditions.

3.2.2 PREPARATION

3.2.2.1 New Concrete

Newly placed concrete shall be sufficiently cured for a recommended 28 days. Prepare and clean concrete surfaces. Provide sound concrete surfaces free of laitance, glaze, efflorescence, curing compounds, form-release agents, dust, dirt, grease, oil, paint splatter, and other contaminants

SECTION 03 35 43 Page 10 incompatible with liquid applied products and polishing. Immediately prior to polishing, thoroughly clean the concrete. Sweep surfaces, and scrub using a rotary floor machine and white brush or pad.

3.2.2.2 Existing Concrete

Perform test of slab by first cleaning concrete to ensure that surfaces are completely penetrable before receiving the initial application of solvent-based dye. Test surfaces to receive solvent-based dye by spotting with water. Water should immediately darken the substrate and be readily absorbed. If water beads and does not penetrate or only penetrates in some areas, additional surface preparation and testing shall be performed.

Perform a test to determine what level of grinding diamonds will be required to completely remove any potential bond barrier. If no bond barrier is apparent, then proceed to diamond grinding level as agreed upon by this specification.

3.3 POLISHING CONCRETE FLOORS

3.3.1 Initial Grinding

Using CPAA guidelines, the polishing process shall produce a Class B aggregate exposure using the table below.

CLASS NAME SUFACE CUT

DEPTH

APPEARANCE

A Cream Very Little Little aggregate exposure

B Fine Aggregate (Salt & Pepper)

1/16 Inch Fine aggregate exposure with little or no medium aggregate exposure at random locations

C Medium Aggregate

1/8 Inch Medium aggregate exposure with little or no large aggregate exposure at random locations

D Large Aggregate

1/4 Inch Large aggregate exposure with little or no fine aggregate exposure at random locations

Use grinding equipment with metal bonded grinding pads. Begin grinding in one direction using sufficient size grit wet pad. Make sequential passes with each pass perpendicular to previous pass using finer grit wet pad with each pass, up to 200 grit. Achieve maximum refinement with each pass before proceeding to finer grit pads. Vacuum floor using squeegee vacuum attachment after each pass. Continue grinding until aggregate exposure matches approved field mock-ups.

3.3.1.1 Treating Surface Imperfections

Surface imperfections, including voids and minor cracks shall be filled with a Void & Crack Repair Material specifically formulated for these

SECTION 03 35 43 Page 11 repairs.

3.4 SOLVENT BASED DYE APPLICATION

3.4.1 Surface Protection

Protect surrounding areas from over-spray, run-off and tracking. Divide surfaces into small work sections using wall, joint lines, or other stationary breaks as natural stopping points.

3.4.2 Dye Application

Apply solvent-based dye at the coverage rate recommended by the manufacturer and use application equipment described in the manufacturer's printed technical literature. A second application is recommended to produce a more consistent appearance. The second application should be applied after the first application has dried sufficiently (normally 20 - 50 seconds after application depending on temperature and humidity) Dye color and resulting appearance shall match the approved mock-up. Dye application shall be followed by cleaning with an autoscrub process.

3.5 DENSIFIER APPLICATION

Concrete must be thoroughly cleaned of solvent-based dye residual with water (autoscrub) prior to application of commercial densifier specifically manufactured for use with polished concrete. Densifier shall be tested for compatibility with solvent-base dye. Apply undiluted to point of rejection, remove excess liquid, and allow to cure according to manufacturers instructions. Apply second coat of densifier after initial honing as rewired.

3.6 JOINT FILLER

Apply joint filler to all contraction joints before the last metal bond polishing pass. Use a razor blade to remove excess filler and follow this with the last metal bond polishing pass to remove any filler not cutt off by the razor blade.

3.7 HONING

Use grinding equipment with resin bonded grinding pads. Grind concrete in one direction starting with 50 grit pad and make as many sequential passes required to remove scratches, each pass perpendicular to previous pass, up to 400 grit pad reaching maximum refinement with each pass before proceeding to finer grit pads. Auto scrub or vacuum floor using squeegee vacuum attachment after each pass.

3.8 POLISHING

Using CPAA guidelines, the polishing process shall produce a Level 2 reflect-ive clarity and reflective sheen using the table below.

SECTION 03 35 43 Page 12

LEVEL NAME REFLECTIVE

CAPACITY

REFLECTIVE

SHEEN

GRIT

RANGE

MIN.

NUMBER

OF

ABRASIVES

1 Ground Flat appearance with no to very slight reflection

None to very low

Below

2 Honed Matte appearance with or without slight diffused reflection

Low to medium 100 to 400

3 Semi-polished

Objects being reflected are not quite sharp and crisp but can be easily identified

Medium to High

800 & higher

4 Highly-polished

Objects being reflected are sharp and crisp as would be seen in a mirror-like reflection

High to highest

800 & higher

Use polishing equipment with resin bonded polishing and burnishing pads.

Begin polishing in one direction starting with 800 grit pad. Make sequential passes with each pass perpendicular to previous pass using finer grit pad with each pass, to achieve required level of reflective clarity and sheen. Achieve maximum refinement with each pass before proceeding to finer grit pads. Auto scrub or vacuum floor using squeegee vacuum attachment after each pass. Continue polishing until gloss appearance matches approved field mock-ups.

3.9 SEALER (STAIN PROTECTION) APPLICATION

Following final diamond polishing steps, clean floor with water and white pad or brush, and allow to thoroughly dry prior to application of sealer.

Apply two light "film" applications of the sealer, allowing floor to dry between applications. Following final application, burnish floor with a high-speed burnisher and white or light guerilla pad.

3.9.1 Burnishing

Following the final application of sealer, the floor shall be burnished.

The burnishing process shall be accomplished utilizing a propane burnisher and appropriate thick black stripping pad. Floor shall be heated up to 20 degrees, periodically changing the pad to eliminate any gummming of the sealer on the pad.</AM#0007>

-- End of Section --

SECTION 03 35 43 Page 13

SECTION 10 51 16

BENCHES

AM0007

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 A36/A36M (2014) Standard Specification for Carbon Structural Steel

1.2 SUBMITTALS

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

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submittals with an "S" are for inclusion in the Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section 01 33 00.99 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Benches

Include details of construction, location and installation requirements of hardware and reinforcements, and details of joints and connections showing sizes and locations of welds. Indicate fabrication, erection, anchorage, and accessories.

1.3 DELIVERY, STORAGE, AND HANDLING

Deliver benches in packaging to provide protection during transit and job storage. Leave in unopened original containers, clearly labeled for location of installation.

PART 2 PRODUCTS

2.1 MATERIAL

Hardwood Top w/Steel Tube Pedestals, ASTM A36/A36M.

2.2 Benches

The pedestal shall be 2 inch by 2inch steel tubing with 7 gauge steel flanges welded to each end. The pedestal shall be approximately 16 inches high 1'-6" wide and 4'-0" long. Provide in locations and quantity indicated.

Bench tops shall be fabricated of 1-1/4" thick MAPLE hardwood with heavily

SECTION 10 51 16 Page 1 varnished clear top for splinter-free sitting and have rounded corners.

Size of bench tops shall be 18 inches deep by 1-1/4 inches thick.

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Benches

Install pedestals with 1/4 inch, 2 inch long flat head screws in masonry anchors. Provide a minimum of three fasteners per flange.

Attach tops to pedestal flanges per manufacturer recommendations instructions.

3.2 ADJUSTMENT

Adjust items and components of items specified in this section to ensure proper operation.

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SECTION 10 51 16 Page 2

SECTION 01 00 00.00 44

CONSTRUCTION SCHEDULE

PART 1 GENERAL

1.1 SCHEDULE

Commence, prosecute, and complete the work under this contract in accordance with the following schedule and Section 00 73 00 CONTRACT CLAUSES COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK and LIQUIDATED

DAMAGES:

Item of Work Commencement of Work

(Calendar days)

Completion of Work

(Calendar days)

Liquidated Damages per calendar days

(1) All work, including O&M Manuals and Final Record Drawings for the White Sands Missile Range Information Systems Facility.

SEE NTP. 930 $ 3,420.00

NOTE: All work on this project shall be completed within the number of calender days stated in Item of Work (1) above, inclusive of all review periods and Government phasing requirements specified. If the Government accepts a proposal for a completion period of lesser duration, and such proposal alters the time periods for review and phasing, the Contract shall be read to include the original periods for review and phasing. If a completion period of lesser duration is proposed and accepted by the Government, the accepted completion period will replace the original construction schedule listed above in the Schedule. If an alternate completion period is proposed, the Bid Schedule must reflect pricing information for the alternate proposed completion period. The liquidated damages stated above will be applied for each calendar day the Contractor exceeds the Contract scheduled duration.

a Liquidated damages for individual items of work will not be combined. Only the rate of the affected item of work will be assessed.

b. Liquidated damages are not accumulative for multiple phases of work.

c. Operation and Maintenance Manuals: See Section 01 78 00 CLOSEOUT SUBMITTALS, paragraph OPERATION AND MAINTENANCE MANUALS for

SECTION 01 00 00.00 44 Page 1

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CONSTRUCTION SCHEDULE

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requirements and withholding amount to ensure completion of O&M Manuals.

d. Record Drawings: See Section 01 78 00 CLOSEOUT SUBMITTALS, paragraph titled RECORD DRAWINGS for requirements and withholding amount to ensure completion of record drawings.

1.1.1 Testing of Heating and Air-Conditioning Systems

The times stated for completion of this project includes all required testing specified in appropriate specification sections of heating, air conditioning and ventilation systems including HVAC Commissioning.

Exception: boiler combustion efficiency test, boiler full load tests, cooling tower performance tests, and refrigeration equipment full load tests, when specified in the applicable specifications, shall be performed in the appropriate heating/cooling season as determined by the Contracting Officer.

1.2 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER (OCT 1989)

(ER 415-1-15)(52.0001-4038 1/96)

a. This provision specifies the procedure for determination of time extensions for unusually severe weather in accordance with the contract clause FAR 52.249-10 entitled "DEFAULT: (FIXED PRICE CONSTRUCTION)."

In order for the Contracting Officer to award a time extension under this clause, the following conditions must be satisfied:

(1) The weather experienced at the project site during the contract period must be found to be unusually severe, that is, more severe than the adverse weather anticipated for the project location during any given month.

(2) The unusually severe weather must actually cause a delay to the completion of the project. The delay must be beyond the control and without the fault or negligence of the contractor.

b. Weather Conditions

(1) Climate is typical of the southwest desert with a wide temperature range between day and night, often as high as 50 degrees F change in 24 hours. The annual range temperature is from a maximum of 108 degrees F in summer to an extreme low of 0 degrees F in winter. The recorded low was -10 degrees F.

(2) Average annual rainfall varies from about 9.5 inches in the southern part of the reservation to over 10 inches in the northern part. During most years, about 60 percent precipitation occurs in July, August, and September.

(3) The prevailing winds are out of the west. A salient feature of these winds is their gusty nature. Wind velocities have reached a maximum of 123 miles per hour. The higher velocities are experienced adjacent to the mountains, and the lower velocities in the valley regions. These winds, chiefly from the west and southwest, vary from small whirlwinds known as "dust-devil," to high winds of more than 24-hour duration. The dust-devil type of whirlwinds throw sand and gravel with sufficient velocity to cause visible pitting of automobile windows and impingement. The high winds with their gusts have removed windows and roofs from houses and buildings in the Post Area. The sand and dust (most prevalent

SECTION 01 00 00.00 44 Page 2 in the spring), cause rapid deterioration of unprotected equipment and instruments. Damaging high winds have also been recorded in November, December, and March.

(4) The following schedule of monthly anticipated adverse weather delays due to precipitation and temperature is based on National Oceanic and Atmospheric Administration (NOAA) or similar data for the project location and will constitute the base line for monthly weather time evaluations. The contractor's progress schedule must reflect these anticipated adverse weather delays in all weather dependent activities. Wind is not considered in the Monthly Anticipated Adverse Weather Calendar Day Schedule.

MONTHLY ANTICIPATED ADVERSE WEATHER DELAY

WORK DAYS BASED ON (5) DAY WORK WEEK

WHITE SANDS, NM AREA (WSMR AND RESEREVE CTR AT LAS CRUCES)

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

1 1 1 1 2 1 4 4 2 1 1 3

c. Upon receipt of the Notice to Proceed (NTP) and continuing throughout the contract, the contractor will record on the daily CQC report, the occurrence of adverse weather and resultant impact to normally scheduled work. Actual adverse weather delay days must prevent work on critical activities for 50 percent or more of the contractor's scheduled work day.

d. The number of actual adverse weather delay days shall include days impacted by actual adverse weather (even if adverse weather occurred in previous month), be calculated chronologically from the first to the last day of each month, and be recorded as full days. If the number of actual adverse weather delay days exceeds the number of days anticipated in paragraph "b", above, the Contracting Officer will convert any qualifying delays to calendar days, giving full consideration for equivalent fair weather work days, and issue a modification in accordance with the contract clause entitled "Default (Fixed Price Construction)."

1.3 CONSTRUCTION PHASING

1.3.1 Phasing Requirements

Detailed phasing requirements are provided on plans sheet G-103.

Contractor shall return 100 days after contract completion, after furniture installation by others, to test occupancy/vacancy sensors in accordance with Section 26 51 00 INTERIOR LIGHTING. The start date for testing of the occupancy/vacancy sensors shall be coordinated with the COR.

1.3.2 Joint Occupancys

The Government will require joint occupancy of the facility approximately 80 calendar days prior to contract completion to allow the end user to install and configure the computer networking equipment in the server cabinets. A joint occupancy agreement will be developed between the Contractor and the Government during construction, when the detailed requirements for the joint occupancy are known. <(AM#02)

SECTION 01 00 00.00 44 Page 3

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otherwise indicated at the preconstruction conference. Requests to work at times other than the stated working hours, including scheduled utility outages discussed below, shall be submitted to the Contracting Officer for approval. Contractor shall not work outside of the above stated working hours without prior written approval of the Contracting Officer.

1.4.2 Security Requirements

1.4.2.1 Installation Entrance Requirements

Entrance requirements to the Installation are specified in Section 01 35

20.00 44 SPECIAL PROJECT PROCEDURES FOR WHITE SANDS MISSILE RANGE.

Access to White Sands Missile Range will be delayed between 5 minutes and 30 minutes or longer due to increased security precautions, including the checking of vehicle ID’s, vehicle manifests, and the searching of all vehicles. Any general or specific threat to the safety of those working or living at White Sands Missile Range could result in longer waiting times at the access points to White Sands Missile Range. Individuals shall have one form of picture ID such as a driver's license (issuing state and number).

In addition to the picture ID, conference attendees shall also have their company's name and address, a memo on their company's letterhead stating the reason for entry, and the location on White Sands Missile Range where the conference is located. Additional information for Contractor Personnel Access provided on Plan Sheet C-101.

1.4.3 Identification of Employees

The Contractor shall be responsible for furnishing to each employee, and for requiring each employee engaged on the work to display, identification as approved and directed by the Contracting Officer. Prescribed identification shall immediately be delivered to the Contracting Officer for cancellation upon release of any employee. When required, the Contractor shall obtain and provide fingerprints of persons employed on the project. Contractor and subcontractor personnel shall wear identifying markings on hard hats clearly identifying the company for whom the employee works.

Contractor personnel shall wear visible Contractor-furnished employee identification badges while physically on the Installation. Each badge shall include, as a minimum, the company name, employee name, photograph, Contract Title, Contract Number, and the expiration date of the badge.

1.5 UTILITIES

1.5.1 Payment for Utility Services

Utilitiy availability and Payment For Utility Services are specified in Section 01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROL.

1.5.2 Coordination

For Contractor Telephone And Internet Service, the Contractor shall coordinate with ITBC and the local phone company for service providers contractor telephone and internet service during construction.

SECTION 01 00 00.00 44 Page 4

1.4 WORK RESTRICTIONS

1.4.1 Working Hours

Normal working hours are Monday through Friday, 0630 to 1700 hours, unless

W9126G21B0001, AMENDMENT 0007

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<(AM#0007)

M2ECAJMC

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M2ECAJMC

Cross-Out

Contracting Officer in writing 14 days prior to date of requested outage.

1.6 PAPERLESS CONTRACT SUBMISSION

1.7

a. GENERAL INFORMATION ON PAPERLESS CONTRACT SUBMISSION

The goal is to reduce waste, decrease time, decrease associated costs, and to streamline most file transmission procedures.

b. METHODS OF DIGITAL SUBMISSION This contract shall use digital submission methods to the greatest extent practicable. Acceptable methods are as follows, in order of precedence:

(1) RMS - will be used to the greatest extent practicable. Some items may not be submittable via RMS due to program constraints. Those items shall use an alternate method. All ENGR 4025’s shall be generated and submitted in RMS.

(2) Secure, Password Protected Web-Based System Access must be allowed and approved by the Government Representative. Access must be allowed and approved by the Government Representative. This method shall not be used for security sensitive documents.

(3) CD/DVD – Will be accepted if no other method is possible and upon prior approval.

c. ITEMS TO BE SUBMITTED VIA HARDCOPY Product samples, color boards, and any other item not feasible to submit digitally, shall be submitted hard copy. ENGR 4025 shall be submitted digitally always. The Government reserves the right to request hard copy submission on any item, if deemed necessary. Contractor shall be prepared to provide requested hard copy at any time.

In accordance with the provisions of Subpart 36.201 (Evaluation of Contractor Performance) of the Federal Acquisition Regulation (FAR), construction contractor’s performance shall be evaluated throughout the performance of the contract. The United States Army Corps of Engineers (USACE) follows the procedures outlined in Engineering Regulation 415-1-17 to fulfill this FAR requirement. For construction contracts awarded at or above $700,000.00, the USACE will evaluate contractor’s performance and prepare a performance report using the Contractor Performance Assessment Reporting System (CPARS), which is now a web-based system. After an evaluation (interim or final) is written up by the USACE, the contractor will have the ability to access, review and comment on the evaluation for a period of 60 days. Accessing and using CPARS requires specific software, called PKI certification, which is installed on the user’s computer. The certification is a Department of Defense requirement and was implemented to provide security in electronic transactions. The certification software

SECTION 01 00 00.00 44 Page 5

CONTRACTOR PERFORMANCE EVALUATIONS

1.5.31.5.3 Outages

The Contractor shall coordinate all requests for utility outages with the could cost approximately $110 - $125 per certificate per year and is purchased from an External Certificate Authorities (ECA) vendor. Current information about the PKI certification process and for contacting vendors can be found on the web site: http://www.cpars.csd.disa.mil/ If the Contractor wishes to participate in the performance evaluation process, access to CPARS and PKI certification is the sole responsibility of the Contractor.

1.8 CONTRACTOR PAYROLL RECORD

Contractor shall be required to log payrolls for all their own employees and subcontractors utilizing ENG Form 3180. Each subcontractor requires a separate ENG 3180 for their payrolls. The Contractor shall maintain the ENG 3180, along with the payrolls, on site and available for review by the Contracting Officer's Representative. The ENG 3180's shall be updated weekly as payrolls are submitted. After making copies for their files, the Contractor is required to submit the originals of each week’s payrolls to the Resident Office. Before final payment, the Contractor shall provide the completed ENG 3180’s to the Contracting Officer's Representatives.

1.9 CONTRACTOR SUPPLY and USE OF ELECTRONIC SOFTWARE FOR PROCESSING WAGE

RATE REQUIREMENTS CERTIFIED LABOR PAYROLLS

a. The contractor is required to use a commercially-available electronic system to process and submit certified payrolls electronically to the Government. The requirements for preparing, processing and providing certified labor payrolls are established by the Wage Rate Requirements statute.

b. The contractor shall be responsible for obtaining and providing for all access, licenses, and other services required to provide for receipt, processing, certifying, electronically transmitting to the Government, and storing weekly payrolls and other data required for the contractor to comply with the Wage Rate Requirements statute. When the contractor uses an electronic payroll system, the electronic payroll service shall be used by the contractor to prepare, process, and maintain the relevant payrolls and basic records during all work under this construction contract and the electronic payroll service shall be capable of preserving these payrolls and related basic records for the required 3 years after contract completion. The contractor shall obtain and provide electronic system access to the Government, as required to comply with the Wage Rate Requirements over the duration of this construction contract. The access shall include electronic review access by the Government contract administration office to the electronic payroll processing system used by the contractor.

c. The contractor's provision and use of an electronic payroll processing system shall meet the following basic functional criteria:

(1) commercially available;

(2) compliant with appropriate Wage Rate Requirements statute payroll provisions in the Federal Acquisition Regulation (FAR);

(3) able to accommodate the required numbers of employees and subcontractors planned to be employed under the contract

(4) capable of producing an Excel spreadsheet-compatible…