6PW011_SOW_Repair_Masonry,_Postwide_(Rev_1).pdf

STATEMENT OF WORK (SOW)

FOR

Repair Masonry

AT

Watervliet Arsenal Post Wide

Project #: 6PW011

Installation Management, Public Works Division Facilities Engineering (TAWV-IMP-F)

PART 1 GENERAL

1.01 Overview.

A. This Statement of Work (SOW) defines the effort required to address major areas of disrepair with the exterior façade of brick buildings on post. Many of these represent possible safety issues and overhead hazards that have to be corrected.

1.02 Hours of Operation.

A. Normal duty hours are 7:00 AM through 4:00 PM, Monday through Thursday, and 7:00 AM through

3:00 PM on select Fridays (the arsenal is closed every-other Friday). Federal holidays are non-work days. If a federal holiday falls on a Saturday or Sunday, the preceding Friday or following Monday is a work holiday.

1.03 General Requirements.

A. The Contractor shall perform all work in strict conformance with Watervliet Arsenal Instructions for Contractors (WAIC). The contractor shall read and understand this document prior to submitting a proposal. The WAIC is publically available at:

http://www.wva.army.mil/Documents/Contracting/WAIC.pdf

B. The Contractor shall supply all tools, materials, supplies, equipment, labor, temporary utilities and supervision necessary for the complete execution of the requirements within the contract documents and requirements of this SOW.

C. The Contractor shall, prior to submitting a proposal, review (i) all contract documents, and (ii) the project work site, and shall provide written notice to Contracting Specialist detailing any discrepancies that are found between the contract documents and the project work site.

D. The Contractor shall notify the Contracting Specialist a minimum of two (2) business days before the contractor starts work. The contractor shall notify the COR a minimum of seven (7) business days before the shut-down of a utility or building service.

E. The Contactor shall clean all work areas, at the end of each work day, to remove all tools, equipment, debris, materials, and all waste from the work site.

1.04 Safety Requirements.

A. General.

1. The Contractor shall be responsible for complying with all DOD, Army, Federal, and State health and safety requirements which are applicable to this project, and shall use all means and precautions available to ensure the safety of the occupants and protection to the existing buildings and structures.

B. Existing Conditions.

http://www.wva.army.mil/Documents/Contracting/WAIC.pdf

1. The Contractor shall inspect the project work site prior to starting work, and shall request a copy of the asbestos building inspection records to verify the location and description of known asbestos-containing materials. The Contractor shall sign the “Asbestos Notification Acknowledgement Record” and submit this form to the Project COR prior to starting project work.

1.01 Period of Performance.

A. The Contractor shall be required to (i) commence work under this contract within 7 calendar days after the date the contractor receives notice to proceed, (ii) prosecute the work diligently, and (iii) complete the entire work ready for use not later than [1] year after notice to proceed was given. The time stated for completion shall include final cleanup of the premises.

1.02 Project Schedule.

A. The Contractor shall create a project schedule and submit for Government review and approval. The project schedule shall detail the phases of work and the overall timeline for the execution of the work.

The contractor shall include delivery dates, appropriate milestones, and shall clearly detail any requirements for work performed outside of regular hours of operation.

1.03 Permits.

A. The Contractor shall obtain the following WVA Permits from the Contracting Officer’s

Representative (COR), IAW the Watervliet Arsenal Information for Contractors (WAIC). The Project COR will provide the Permit forms and the direction necessary to complete each Permit.

1. Utility Clearance (Dig) Permit

2. Hot Work (Flame) Permit

1.04 Equipment Identification.

A. The Contractor shall create and affix a label to all large equipment, dumpsters, and other mobilized property, which is weather-resistant (laminated, or within a see-thru label hanger), securely affixed to the equipment or visible through a window, and which clearly displays the General Contractor’s:

1. Company name

2. POC name (first, last)

3. POC phone number

4. Project Number (see title page of SOW)

1.05 Waste Dumpster.

A. The Contractor shall place any waste dumpsters in a manner that does not interfere with thru-traffic.

B. Waste dumpsters shall be placed with a minimum of 33’ clearance from any building. The final location shall be coordinated with, and approved by the COR before any dumpsters are mobilized.

C. The Contractor shall cover all waste dumpsters when not in use, and before the end of each work shift. The cover shall be weather-tight.

1.06 Project Specifications.

A. The Contractor shall complete the Items of Work in accordance with the following associated Project

Specification(s), attached to this SOW.

1. 04 WVA 01 – Restoration of Brick Masonry

2. 03 WVA 02 – Sidewalk Replacement

1.07 Applicable Documents.

A. Watervliet Arsenal Instructions for Contractors (WAIC).

B. Unified Facilities Guide Specifications

1. 04 01 20.70 Unit Masonry Cleaning and Restoration

2. 32 16 13 Concrete Sidewalks and Curbs and Gutters

3. 03 01 30.71 – Concrete Rehabilitation

4. 03 01 32 – Concrete Rehabilitation for Civil Works

5. 03 30 00 – Cast in Place Concrete

C. American Concrete Institute

1. ACI 308.1

2. ACI C-20

D. American Society for Testing and Materials

1. ASTM C-270

E. American National Standard Manual on Uniform Traffic Control Devices Street and Highways

F. ANSI – D6.1

G. The Secretary of the Interior’s Standard for the Treatment of Historic Properties

H. OSHA

1. 29 CFR 1926

2. 29 CFR 1910

I. Americans with Disabilities Act

1.08 Submittals.

A. The Contractor shall e-mail all submittals to the Contracting Specialist for review and approval. All submittals require government approval unless otherwise explicitly stated.

B. The Contractor shall reference APPENDIX A “Consolidated List of Submittals” for complete list of required submittals.

PART 2 PRODUCTS

2.01 General.

A. Unless otherwise stated, all materials for this project shall be new. All products shall not contain any asbestos, mercury, chromium/lead paint, Class I Freon, and Polychlorinated Biphenyls (PCB), and shall state such on the manufacturer’s original packaging.

B. All work shall be in strict accordance with product manufacturer’s instructions and specifications, including but not limited to manufacturer guidance for storage, staging, application, installation, and disposal of the product.

C. All construction materials shall meet the applicable requirements of the DoD Green Procurement Program, specifically recycled content products, environmentally preferable products and services, biobased products, energy-and water-efficient products, alternate fuel vehicles and alternative fuels, products using renewable energy, and alternatives to hazardous or toxic chemicals as found at <http://www.acq.osd.mil/dpap/cpic/cp/docs/USA001967-08-DPAP.pdf>.

2.02 Products and Materials.

A. Mortar

1. Shall be of similar characteristics of the existing mortar to include strength, texture, hardness, and color.

B. Grout

1. Five Star Non-Shrink Construction Grout or equivalent

C. Replacement Bricks

1. Shall be of similar vintage as the surrounding bricks in size, color, texture, material strength, etc.

D. Weather Seal Coating

1. SealClear by Sealoflex Waterproofing Systems or equivalent

a. Shall be silicone or siloxane based, with a 15% solids formula

E. Concrete

1. Compressive strength of 4,000 psi after 28 days

F. Reinforcing Mesh

1. W1.4 x W1.4 wire mesh conforming to ASTM A1064

G. Expansion Joints

1. ½” thick premolded joint filler conforming to ASTM D1751

2. Joint sealant conforming to ASTM D5893

H. Epoxy-Coated Dowels

1. 3/8” diameter, conforming to the coating requirements of ASTM A775/A775M, 8 mils minimum thickness.

I. Epoxy Grout

1. Moisture insensitive, conforming to ASTM C881/C881M, Type III, Grade 2, 3, with mineral filler.

J. Bonding Agent

1. Five Star Products Bonding Adhesive or equivalent

a. Two component, 100% solids, moisture insensitive structural epoxy adhesive

b. Excellent for bonding fresh to hardened concrete, meeting ASTM C 881 Type I, II, IV and V, Grade 2, Classes B and C.

K. Concrete Sealer:

1. QUIKRETE Waterproofing Sealer – Natural Look or Equivalent.

a. Repel water and protect against salts, oil, and gasoline without changing appearance of the substrate.

b. UV resistant.

PART 3 ITEMS OF WORK

3.01 General Requirements.

A. The Contractor shall provide all personnel, management, materials, transportation, equipment, and any other items and services not Government furnished, necessary to remove all damaged/deteriorated mortar joints, pointing to obtain visually compatible features to create the same color and tooling joints, resetting of stone on masonry walls and structures at various locations throughout the installation. Contractor shall be regularly engaged in restoring stone masonry on historic structures and employing personnel trained and experienced in restoring masonry.

B. The Contractor shall be responsible for planning, programming, administration and management necessary to perform all work in the successful and timely completion task orders to be awarded under this contract. All work to be performed in accordance with all contract terms and conditions, and in strict compliance with all applicable Federal, State of New York and Local Laws, Regulations and Directives, to include applicable publications in Section 1.07 and 1.08 herein. Contractor is responsible for performance of work including, but not limited to: supply, quality control and financial control. The Contractor shall provide related services such as preparing and submitting reports, tests, performing administrative work and submitting necessary information as specified. The Contractor shall be required to provide materials lists to include trade names and brand names, model materials in accordance with submittal requirements under this contract.

C. The Contractor is responsible for ordering and maintaining sufficient materials to perform the work within the allocated timeframe. Materials that are used recurringly, should be bench stocked so that those materials do not have to be ordered and delay repair.

D. During execution of this contract, all facilities will normally be occupied. All masonry repair work shall be performed in a professional, workmanlike manner, with minimum disturbance to the occupants and/or facility users. The Contractor shall insure that his personnel enter only those areas necessary for execution of the repair. Upon completion of work, the contractor shall provide sufficient cleanup of the work area so that additional cleaning will not be required by the facility users.

E. The Contractor shall designate a representative, hereafter called the Project Manager, in writing, within ten (10) calendar days after contract award. The Project Manager shall be in charge of all the work to be completed under this contract and have complete authority to act for the Contractor, direct the work and ensure personnel and equipment are in compliance with these contract requirements.

Contractor employees working on this contract shall be personnel trained and with experience in restoring historic masonry structures.

F. Housekeeping: The Contractor shall, at all times, furnish from his own organization a sufficient force to carry out the housekeeping and cleanup requirements on areas affected by contract operations, on a day to day basis throughout the life of the contract.

1. The Contractor shall provide and maintain a dumpster of sufficient size or load debris into the Contractors truck for removal. Removed materials shall not be stockpiled at each worksite.

The dumpster shall be replaced in a manner that avoids overfilling and spillage and the work area around the dumpster and Contractors truck shall be kept clean at all times. Debris and other rubbish shall be disposed of off the installation at the Contractors expense in accordance with Federal, State, and Local requirements. The Contractor or its employees shall not dispose of construction materials, scrap, debris, rubbish in any post dumpsters or sanitary sewer basins.

2. The Contractor shall provide protective drop cloths (plastic tarps) for storing materials on site to eliminate damages to and around the work area.

G. In performing this contract, the Contractor shall provide for protecting the lives and health of employees and other persons, preventing damage to property, materials, supplies and equipment and avoiding work interruptions.

H. The Contractor personnel performing services on or adjacent to roadways shall be equipped with reflective vests. The Contractor personnel acting as road guides shall be in compliance with all applicable safety regulations. The Contractor personnel shall maintain the free flow of traffic during the restoration process through the use of traffic control devices, including flagmen, traffic cones, detour signs, signal devices, and flashers.

I. The Contractor shall provide and install all necessary scaffolding and staging to accomplish all phases of the contract work. The Contractor shall be responsible for the strength and safety and be in full compliance with the laws governing safety standards of scaffolding. Scaffold requirements are referenced in CFR 1926.451.

3.02 Specific Tasks.

A. Preliminary Site Investigation: Prior to issuance of the Task Order and the request for Quote, the Contractor shall schedule a preliminary site investigation, to include the COR. Purpose of the preliminary site investigation is so that the Contractor and COR can determine and jointly agree on field measurements, existing conditions, salvageable items, and task order performance period based on amount and complexity of the work at the time.

3.03 Restoration of Brick/Stone Structures.

A. The Contractor shall remove, replace, repoint, and clean brick/stone in accordance with Specification

04 WVA 01 – Restoration of Brick Masonry and UFGS 04 01 20.70 – Unit Masonry Cleaning and Restoration, attached.

B. Removal of Damaged and Deteriorated Mortar Joints: The Contractor shall remove all loose or missing mortar; previous repointing that does not match original mortar, including caulking, grout, or Portland cement mortar; voids, powdery or crumbling mortar; or cracks that weaken the bond between units. The Contractor shall remove mortar in all joints to a minimum depth of at least one (1) inch or 2 and ½ times the width of the joint; whichever is greater, or until sound mortar is reached.

C. Removal of Brick: The Contractor shall remove and replace any missing, broken, or deteriorated bricks. Care shall be taken during the removal operation to prevent damage to the bricks. Bricks shall be removed to include rubble, until a sound solid surface is reached. Contractor shall be cautious with powered equipment so that existing brick is not damaged.

D. The use of grinders and saws will be allowed for the repointing of brick unless the mortar is deteriorated. A “wet method” will be the only acceptable method for grinders and saws.

1. Deteriorated mortar shall only be removed using hand-held, non-power tools to the greatest extent possible (this is the typical approach when mortar has lost its binder and has become powdery or sandy). Power tools shall be used only if mortar is of a harder variety and has cracked or otherwise separated from masonry units and then the tools will be used to create a “kerf” in the middle of the joint. This is to relieve pressure so that masonry can then be removed by hand. Since masonry saws have the potential to erode or cut masonry units if they are used to fully remove existing masonry, they should not be used to entirely remove existing mortar.

E. The use of grinders and saw will be allowed for the repointing of stone, as a relief cut only of the joint. A “wet method” will be the only acceptable method for grinders and saws.

F. Cleaning of Joints: The Contractor shall clean joints with air or water so they are free of dust, dirt, masonry chips and loose aggregate after raking has been completed.

1. The Contractor shall remove and dispose of all debris that is part of the removal and cleaning process.

G. Repointing of Joints: The Contractor shall compress new mortar into the joint in successive layers until a minimum of 3/4 inch depth and maximum depth of 1-1/2 inch has been attained. The pointing of joints shall be continued to fill in all voids and maintain a uniform appearance. Mortar joints shall be duplicated in widths.

1. A minimum setting rate of twenty four (24) hours shall be adhered to for newly compressed mortar.

2. The Contractor shall provide a weather resistant membrane to cover and protect joints from exposure during periods of rain.

3. The Contractor shall compress new mortar into the remaining ½ inch joint after the initial setting rate has been accomplished. The pointing of joints shall be consistent with the construction and appearance of existing facilities or structures being repointed. The Contractor shall maintain the same mix for the entire structure.

4. Mortar shall be “Type K” or appropriate for the structure.

5. Joints shall be tooled when the mortar is thumbprint hard and brushed finished to seal joints.

6. Joint profiles shall be grapevine/rope, concave or “V”.

7. The Contractor shall repair and touch-up any surface or item damaged during performance of this work. All damages shall be repaired to previous condition. Repairs shall be completed at no additional cost to the Government.

H. Masonry (Final) Cleaning: After tooling, detergent cleaning for the removal of light films. Detergent cleaners shall be ProSoCo or equivalent (to be provided as submittal for approval). Detergents used for cleaning must be in sealed containers that legibly show the designated name, formula, quantity, date of manufacture, manufactures formulation number and sealed containers, the personnel, procedure, instructions and records to be used.

I. Turf Restoration: The Contractor shall repair grass areas damaged during contract operations. The Contractor shall prepare the areas to eliminate uneven areas and low spots. Remove foreign materials, weeds, and damaged soil. The Contractor shall scratch the area to a depth of three (3) inches where topsoil is to be placed. Spread topsoil to a uniform, compacted depth of less than five (5) inches over areas to be reseeded. Rake until smooth. The Contractor shall seed, fertilize and water the area to establish grass.

3.04 Concrete Walkways.

A. The Contractor shall perform replacement of sidewalks in accordance with Specification 03 WVA 02

– Sidewalk Replacement and UFGS 32 16 13 Concrete Sidewalks and Curbs and Gutters, attached.

B. The Contractor shall replace sidewalks with uniformity in appearance, at the original alignment and elevation, and free of damage, scaling, spalls, surface breaks, and cracks.

1. Areas which exhibit excessive cracking, discoloration, form marks, tool marks, or which are otherwise inconsistent with the overall appearance of the work shall be removed and replaced.

C. The Contractor shall dispose of all debris generated. The Contractor shall haul concrete and soil to Carver Sand and Gravel or Mead Enterprise for recycling. A bill of lading shall be provided to the COR at the end of each work day to verify where the concrete and soil was disposed.

D. The Contractor shall pour and finish concrete sidewalks to include placing reinforcement and other embedded items.

E. Concrete shall be protected from damage until completion and acceptance of the work. Damaged and discolored concrete shall be repaired and cleaned.

1. Damaged concrete shall be removed and reconstructed for the entire length between newly installed joints. Refinishing damaged concrete will not be permitted. Damaged material removed shall be disposed of as specified.

F. Restoration: Areas disturbed due to construction operations shall be restored as specified below.

1. Turf areas shall be restored by topsoil placement, mulching, and seeding.

2. For other than turf areas (roads, parking areas and structures), restoration shall consist of returning the area to conditions existing before construction unless otherwise specified or directed by the Contracting Officer.

3. Repairs affecting traffic ability and safety of personnel shall be repaired within five (5) working days. All damages shall be repaired to previous condition. Repairs shall be completed at no additional cost to the Government.

G. Measurement: Removal of existing sidewalk will be measured by the square foot. The unit price bid shall include the cost of removing and disposing of reinforced and unreinforced concrete sidewalks and pavement.

1. Concrete sidewalks will be measured by the square foot for a four (4) inch thick sidewalk, complete in place. The unit price bid per linear foot shall include the cost of excavation, sub-grade preparation, crushed stone base, reinforcement, concrete, finishing, curing, sealing, joints, testing backfill, and miscellaneous materials and work not specifically mentioned but required for a complete useable system.

2. Restoration of areas disturbed by work of this section will not be measured separately for payment, but costs in connection therewith shall be considered incidental to the item of work to which it pertains.

3. Joint filler, sealants, bonding agents, form work, testing and curing materials will not be measured separately for payment, but costs associated therewith shall be considered incidental to the work of this section.

3.05 Concrete Window Sills.

A. The Contractor shall examine the areas and conditions under which the work of this section will be performed. Conditions detrimental to the proper and timely completion of the work shall be corrected.

B. The Contractor shall remove spalling concrete. Damaged concrete shall be removed and reconstructed until structurally sound concrete is reached for the entire length of the window sill.

C. Reinforcement: ¾” x 4 ½” Stainless Steel Tapcon screws shall be secured into each sill for reinforcement. Screws shall have a hex head and be for use in concrete. Contractor shall predrill holes prior to insertion of screws. Holes shall be drilled every four (4) inches, on the centerline, over the length of the window sill. The first hole shall be drilled four (4) inches in from the leading edge.

Contractor shall follow manufacturer’s guidelines for installation of screws. Screws shall be driven into the concrete to a depth of 3-½”.

1. Once the screws are in place, the Contractor shall coil 12 gauge wire around them. Purpose of the wire is to connect screws and provide additional reinforcement for the new grout.

D. Form Setting: Forms shall be plumb, liquid tight, and continuous along the length of the window sill.

Forms shall be spaced 1-½” from the wall, wrapped with plastic sheeting to allow for easy removal, and extend one inch from the top of the elevation of the new sill. Any connection to the building must be in structurally sound brick.

E. Preparation of Existing Concrete: The Contractor shall ensure that the surface is free of any loose gravel, dirt or grease. The Contractor shall roughen the surface as necessary. The Contractor shall soak the concrete overnight prior to grout application and ensure saturation, per recommendation of the manufacturer.

F. Application of Non-Shrink Grout: Grout shall be mixed per manufacturer’s specifications and poured into forms. Grout shall be suitable for this type of application, Five Star Non Shrink Construction Grout or equivalent. An epoxy adhesive material shall be applied to concrete prior to placement of the grout. Grout shall be poured, making sure to prevent air entrapment by means of rods and hand tools.

Grout shall be finished so that the top surface is uniform and smooth, and has a decline that sheds water. Finished and cured grout shall match existing window sills.

1. The Contractor shall ensure proper curing of the grout in accordance with manufacturer’s specifications, to include covering with burlap and retaining moisture.

2. The Contractor shall remove and dispose of all forms. Contractor shall ensure grout cured properly. Grout shall be visually inspected by COR for any cracks or other defects.

G. The Contractor shall repoint areas around the windows as specified in section 3.03, F.

H. The Contractor shall repair any holes in the wall as a result of the form work. The Contractor shall wash walls and work areas of all excess material in accordance with section 3.03, G.

3.06 Concrete Rehabilitation.

A. The Contractor shall repair surfaces in accordance with UFGS 03 01 30.71 – Concrete Rehabilitation, UFGS 03 01 32 – Concrete Rehabilitation for Civil Works and UFGS 03 30 00 – Cast in Place Concrete.

B. The Contractor shall remove spalled or loose concrete in the areas specified to a minimum depth of two (2) inches and to such additional depth as necessary to expose a surface of sound, unweathered concrete that is free of oils, greases, or deicing salts or solutions. The actual depth of removal shall be subject to approval by the Contracting Officer.

1. The Contractor shall make a perpendicular saw cut at least two (2) inches deep, but no deeper than the reinforcing steel, a minimum of one (1) inch outside of the area to be repaired to delineate the perimeter of the repair area and avoid feather edges. Saw cut shall have no angles less than 90 degrees. Caution shall be exercised so as not to cut through existing reinforcement or embedded metal not to be removed. Edges of repaired areas which are not mechanically anchored shall be dovetailed.

2. The Contractor shall remove concrete with care to avoid damage to adjacent structures and concrete that is not to be removed. Contractor shall be responsible to repair any such damage at no additional cost to the Government.

C. Cleaning of Concrete: Contractor shall clean all surfaces of dust, dirt, oil, grease, paints, glues, sealers, curing agents, efflorescence, chemical contaminants, algae, mildew, or any other foreign matter that may serve as a bond breaker. Contractor shall use detergents/cleaners formulated to remove contaminants from concrete. Do NOT use solvents for removal of oil or grease. All traces of cleaning agents and contaminants shall be removed from the surface.

1. Once the existing concrete has been prepped, the Contractor shall provide means to keep it clean and protected from damage until the new concrete can be placed and cured.

D. Reinforcement: Holes shall be drilled for insertion of 3/8 inch epoxy coated dowels. Diameter of the holes shall be as recommended by the adhesive manufacturer. Holes shall be equidistantly spaced with a minimum concrete cover of three (3) inches. Contractor shall clean out holes by flushing with water and compressed air prior to placing the epoxy grout. Contractor shall place grout and install dowels as recommended by the grout manufacturer.

E. Concrete Placement: Bonding agent shall be applied to all surfaces being repaired prior to placement of new concrete. Deteriorated areas shall be filled with a high early strength, single component, permanent concrete repair material, and re-built as necessary to bring damaged areas back to their original configuration. Any excess concrete shall be removed from adjacent surfaces before the concrete hardens. Do NOT feather concrete out onto adjacent surfaces.

F. Once the concrete has hardened, a sealer shall be applied. Sealer shall be compatible with the repair material and applied to all areas in accordance with manufacturer’s recommendations.

G. The final product shall provide a smooth and even surface with no signs of the repair.

H. Concrete Stair Tread(s): Shall be formed using any forming material, wood, plastic, steel, etc. to match existing rise and tread as determined by Contracting Officer. Before placing concrete, take care to determine that all embedded items are firmly and securely fastened in place. Provide embedded items free of oil and other foreign matter, such as loose coatings of rust, paint, and scale.

1. Cast Iron Abrasive Stair Nosings: The Contractor shall submit manufacturer’ specifications and technical data, including safety data sheets, installation instructions, as required, and catalog cuts and templates where required to explain construction and to provide for incorporation into the project. The Contractor shall submit shop drawings showing complete fabrication details for all stair nosing, including required anchorage to surrounding construction. Stair nosing treads shall meet OSHA barrier free code requirements for stair design in public buildings.

a. Installation: The Contractor shall install stair nosings in accordance with the industry standards applicable to the work and the manufacturer’s written installation instructions. The sub-channels of two component stair nosings shall be installed in the final stages of construction. Work shall be aligned plumb, level, and, where required, flush with adjacent surfaces and rigidly anchored to the substrate.

PART 4 CLOSEOUT REQUIREMENTS

4.01 Cleanup of Work Site.

A. The Contactor shall clean all work areas and remove all tools, equipment, debris, materials, and all waste from the premises.

B. The Contractor shall remove all debris from any remote holding locations, to include any excavation and concrete equipment chute cleanout debris.

C. The Contractor shall remove their equipment from Watervliet Arsenal premises within five (5) working days after completion of project work.

PART 5 APPENDICES

A. Consolidated List of Submittals B. Quality Assurance Surveillance Plan (QASP) C. 04 WVA 01 – Restoration of Brick Masonry D. 03 WVA 02 – Sidewalk Replacement E. UFGS 04 01 20.70 Unit Masonry Cleaning and Restoration F. UFGS 32 16 13 Concrete Sidewalks and Curbs and Gutters G. UFGS 03 01 30.71 – Concrete Rehabilitation H. UFGS 03 01 32 – Concrete Rehabilitation for Civil Works I. UFGS 03 30 00 – Cast in Place Concrete J. Attachment B - Joint Configuration Details

APPENDIX A: Consolidated List of Submittals

Line Item Submitted Submittal Needed By Submittal Reviewed By (Office)

1 Safety Data Sheets for Hazardous Materials

(SDS)

NLT 7 Calendar Days After Award

Safety Office

2 Signed Contractor Asbestos Notification Form NLT 7 Calendar Days After Award

Environmental Office

3 Signed Lockout/Tagout (LOTO) Notification Acknowledgement Record

NLT 7 Calendar Days After Award

Safety Office

4 Project Schedule NLT 7 Calendar Days After Award

COR

5 Concrete Product Data NLT 7 Calendar Days After Award

COR

6 Mortar Product Data NLT 7 Calendar Days After Award

COR

7 Weather Seal Coating Product Data NLT 7 Calendar Days After Award

COR

8 Concrete Sealer Product Data NLT 7 Calendar Days After Award

COR

9 Epoxy Grout Product Data NLT 7 Calendar Days After Award

COR

10 Cleaning Materials Product Data NLT 7 Calendar Days After Award

COR

11 Bonding Agent Product Data NLT 7 Calendar Days After Award

COR

12 Bill of Ladings NLT End of Each Work Day

COR

13 Cast Iron Abrasive Stair Nosing Cut-sheet NLT 7 Calendar Days After Award

COR

14 Joint Sealant Product Data NLT 7 Calendar Days After Award

COR

APPENDIX B: Quality Assurance Surveillance Plan (QASP)

PURPOSE

This Quality Assurance Surveillance Plan (QASP) will be used as a guide to Government Quality Assurance Personnel (QAP). It provides a systematic method to evaluate the services the contractor is required to furnish.

SURVEILLANCE PROCEDURES

Timeliness: Progress is maintained to assure compliance with completion time.

Quality: Conformance with statement of work and industry standards.

Tasks: Performed according to statement of work requirements.

Problem Resolution: Contractor submits deliverables in accordance with the contract and resolves any deficiencies identified by the government in the final submission. Following final submission, contractor resolves any additional deficiencies identified by the government and resubmits and or corrects within one week.

Delivery: Contractor submits each deliverable in accordance with the statement of work and terms of the contract.

PERFORMANCE AREAS

Management Responsiveness: Evaluate the adequacy of the contractor’s responsiveness and their ability to keep the government informed of work progress and provides for early problem identification and effective corrective action plans.

Schedule Control: Evaluate the contractor’s adherence to completion schedule.

Performance: The contractor will be evaluated as to the workmanship and adherence to the statement of work.

EVALUATION CRITERIA

(Outstanding). Indicates performance clearly exceeds contractual requirements. The area of evaluation contains few minor problems for which corrective actions appear highly effective.

(Satisfactory). Indicates performance clearly meets contractual requirements. The area of evaluation contains some minor problems for which the corrective actions appear satisfactory.

(Unsatisfactory). Indicates the contractor failed to satisfy contractual requirements and recovery is not likely in a timely manner. The area of evaluation contains serious problems for which the corrective actions were ineffective.

DOCUMENTATION

Documentation used to perform surveillance will consist of random government inspections and inspection records, as well as the evaluation of final work product delivery by the project COR/COTR.

RATING

Contractor will be given an overall rating of Outstanding, Satisfactory, or Unsatisfactory by the Government Technical point of contact or Contracting Specialist Representative, if appointed, 3 using the above evaluation criteria.

Watervliet Arsenal Repair Masonry Facilities Engineering Post

TAWV-IMP-F 6PW011

Restoration of Brick Masonry - 04 WVA 01 - Page 1

SECTION 04 WVA 01

Restoration of Brick Masonry

1.01 REFERENCES

The publications referenced within this specification are referred to by the basic designation only.

1.02 SUBMITTALS

A. Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for information only. Submit the following in accordance with the “Statement of Work - SUBMITTAL REQUIREMENTS”:

1. SD-01 Preconstruction Submittals

A. Material Safety Data Sheets (MSDS)

2. SD-03 Product Data A. Mortar Mix, G B. Mortar Color Sample, G C. Replacement Bricks Example, G

2.01 MATERIALS

A. Mortar

1. Mortar shall be of similar characteristics of the existing mortar.

2. This includes strength, (Typically Type “K” for the historic masonry at the Arsenal), texture, hardness, and color.

B. Bricks

1. Replacement bricks shall be of similar vintage as the surrounding bricks in size, color, texture, material strength etc.

PART 3 EXECUTION

3.01 Preparation

A. Contractor shall remove all broken and deteriorated bricks.

B. Contractor shall remove all loose or missing mortar; previous repointing that does not match original mortar, including caulking, grout, or Portland cement mortar; voids, powdery or crumbling mortar; or cracks that weaken the bond between units.

C. Contractor shall cut out joints to a depth of at least one inch or 2 ½ times the width of the mortar joint;

whichever is greater, or until sound mortar is reached.

D. Contractor shall be cautious with powered equipment so that existing brick is not damaged.

E. The joint shall be rinsed and brushed clean of all residual mortar, sand and other debris.

F. Brick/stone shall not be damaged or marred in the process of cleaning. Cleaning shall be limited to the removal of ordinary dirt and contaminants when necessary prior to repointing or repair, and the removal of excess mortar and residue from the masonry restoration work.

1. Contractor shall use the gentlest methods possible for cleaning masonry to achieve the desired results.

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2. Cleaning shall proceed from top to bottom of the wall. If cleaning with water, the contractor shall temporarily caulk or otherwise protect open joints to prevent water from infiltrating into the interior of the structure from pressure spraying.

G. Contractor shall protect non-masonry materials and severely deteriorated masonry.

3.02 Repointing

A. Contractor shall provide and replace any missing, broken, or deteriorated bricks.

1. The configuration of the bricks shall be consistent with the existing and any new bricks shall be laid in the same pattern.

2. Bricks shall be laid level and square.

3. Bricks shall be moistened prior to installation.

B. Contractor shall replace mortar that was removed or is missing. New mortar shall match the finish, color, texture, and surface detail of the original surface.

C. Joint profile shall match profile of original mortar joints. If original joint profile is not present for matching, provide concave profile.

D. Mortar shall be “Type K” or appropriate for the structure.

E. Contractor shall also repoint cracks less than 3/8" wide in the brick/stone.

F. Repaired surfaces shall match adjacent existing surfaces in all respects.

G. Masonry repair shall proceed only after the cause of deterioration has been identified and corrected.

H. Masonry repair shall conform to the American Concrete Institute (ACI C-20).

I. Masonry repair shall proceed only after the area or surface to be repaired has been cleaned.

J. After the work is complete, the area shall be cleaned and all excess mortar removed.

3.03 Waterproofing

A. After the mortar has set, the contractor shall furnish and apply a water repellant coating to the brick.

B. The coating shall penetrate and not seal, it shall be specified for use in an exterior setting. The product shall be permeable and allow air flow.

C. The coating shall be silicone or siloxane based, with a 15% solids formula. The contractor shall apply coating according to all the manufacturer’s recommendations.

D. The product shall be similar to SealClear by Sealoflex Waterproofing Systems, or other approved equivalent.

- -END OF SECTION - -

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SECTION 03 WVA 02

WVA SIDEWALK REPLACEMENT GUIDE SPECIFICATION

1. REFERENCES

The publications referenced within this specification are referred to by the basic designation only.

A. American Concrete Institute (ACI)

1. ACI 318

Building Code Requirements for Structural Concrete

2. ACI EB122

Concrete Finisher’s Guide

B. Unified Facilities Guide Specification

1. UFGS 32 16 13

Concrete Sidewalks and Curbs and Gutters

2. SUBMITTALS

A. Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for information only. Submit the following in accordance with the “Statement of Work - SUBMITTAL REQUIREMENTS”:

1. SD-01 Preconstruction Submittals

A. Project Schedule B. Materials List C. Safety Plan; G

2. SD-02 Shop Drawings

A. None.

3. SD-03 Product Data

A. Manufacturer Information and Data Sheets on Products; G

4. SD-04 Samples

5. SD-05 Design Data

6. SD-06 Test Reports

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7. SD-07 Certificates

8. SD-08 Manufacturer’s Instructions

A. Material Safety Data Sheets (MSDS)

9. SD-09 Manufacturer's Field Reports

10. SD-10 Operation and Maintenance Data

A. O&M Manuals

11. SD-11 Closeout Submittals

1. MATERIALS [If more than one system, call out additional 2.02, 2.03 for each system and breakout the associated materials]

A. Concrete

1. 4000 psi Concrete

B. Reinforcing Mesh

1. W1.4 x W1.4 wire mesh conforming to ASTM A1064

C. Expansion Joints

1. ½” thick premolded joint filler conforming to ASTM D1751

2. Cold applied joint sealant conforming to ASTM D5893

PART 3 EXECUTION

1. Demolition

A. All work shall be accomplished in a way that minimizes impact on vehicle and pedestrian movement.

Whenever possible, the contractor shall work from the lawn side of the sidewalk to allow for traffic flow. If a lane closure is required, flaggers shall be in place to direct traffic. The contractor shall maintain an open roadway at all times.

B. Safe pedestrian paths shall be maintained during the course of the project. A safety perimeter shall also be maintained around the construction zone. Contractor is responsible for maintaining site barricades and work site security.

C. Existing sidewalks shall be removed. Curbs are to remain in place unless otherwise stated.

D. All debris shall be hauled off site and disposed of by the contractor.

2. Site Preparation

A. Subgrade shall be formed by excavating to the required depth, and shaped to the proper cross section, and shall be thoroughly compacted by rolling or tamping before placing any concrete to 95 % compaction.

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B. All soft and spongy places shall be removed and all depressions filled with suitable material which shall be thoroughly compacted in layers not exceeding six (6) inches in thickness.

C. The base course shall be leveled and compacted to prevent settlement of the new sidewalk.

D. The base course shall be constructed and brought to the appropriate grade for the top of the sidewalk to match the curb height once construction is finished.

E. Where any tree roots are encountered, they shall be removed to a depth of one foot for the full width of the walk.

F. The contractor shall maintain these site conditions until the concrete is placed.

3. Form Work

A. The contractor shall design and construct forms to ensure that the finished concrete will conform accurately to the indicated dimensions, lines and elevations.

B. Forms shall be made of wood or steel. Materials shall be of sufficient strength to resist springing during placement and consolidation of the concrete.

C. Wood forms shall be surfaced plank, straight and free from warp, twist, loose knots, splits or other defects.

D. Steel forms shall be channel-formed sections with a flat top surface and with welded braces at each end, and at not less than two intermediate points. The ends of steel forms shall be interlocking and self-aligning.

E. All forms shall be of a height equal to the full depth of the finished sidewalk.

F. After the forms are set, grade and alignment shall be checked. Forms shall have a transverse slope of

¼ inch per foot with the low side adjacent to the roadway.

4. New Sidewalk Placement

A. Concrete shall not be placed when the temperature drops below 40° F unless approval is given in writing. Provisions must be made to protect the concrete from freezing during the entire curing period.

B. Placement temperature of concrete shall not exceed 85° F (unless an approved retarder is used).

Provisions shall be made to maintain the temperature below this specified level.

C. Concrete shall be protected against loss of moisture and rapid temperature change for at least 7 days after placement. Fresh concrete shall be protected from rain and flowing water until hard. All equipment required for protection must be on hand prior to placing the concrete.

D. Concrete shall be properly cured in accordance with ACI 308.1. Contractor shall use an appropriate curing method which satisfies the physical project conditions and exposure temperature. All concrete work shall be in accordance with the established procedures as set forth by ACI.

E. Sidewalk slabs shall have an area of not more than thirty-six (36) square feet, and the length of the slab shall be equal to the width providing, however, that where sidewalks are to be repaired, the size of the slab replaced shall be of the same dimensions as those remaining in the old walk.

F. The minimum thickness of the finished sidewalk shall be four (4) inches with the top elevation matching the curb height.

G. The concrete shall be reinforced with wire mesh in the bottom 2/3 of the depth.

A. Control joints shall be installed at five (5) foot intervals and expansion joints at ten (10) foot intervals.

All joint material shall be fixed prior to concrete placement to prevent warping.

B. Additional expansion joints shall be installed where the sidewalk intersects existing concrete, buildings, or other fixed material.

H. Curb ramps shall be reinstalled at all existing locations.

I. Curb ramps and sidewalks shall be installed to meet ADA accessibility requirements to include cross slope requirements (less than two (2) percent) and slope on curb ramps (8.33%).

C. The sidewalk shall be placed continuously for the entire width of the slab, and finished to a true and even surface. The surface shall be light transverse broom finish and have slotted grooves at curb ramps to provide a slip-resistant surface.

D. All edges and joints shall be finished with an edger. Edges and transitions from curb ramp to sidewalk shall be clearly defined and contrast to the sidewalk.

J. Concrete forms shall remain in place for a minimum of twenty-four (24) hours after the concrete is placed. Forms shall be removed without damaging the concrete. Bars or heavy tools shall not be used

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K. At the end of the curing period, expansion joints shall be cleaned thoroughly and filled with cold applied joint sealant. Joint sealant shall be gray or stone in color. Sealing material shall not be spilled on exposed surfaces of the concrete.

5. Backfill and Cleanup

A. Topsoil shall be brought onsite to backfill around the sidewalk. All topsoil shall be screened and meet all New York State, ASTM, and AASHTO specifications.

B. Once backfilled, the contractor shall spread grass seed and water the area. Topsoil and seed shall be extended to cover all damaged landscaping during the process.

C. The contractor shall remove all other tools and equipment from the site.

D. Once complete, the sidewalk shall be swept clean.

- -END OF SECTION - -

USACE / NAVFAC / AFCEC / NASA UFGS-04 01 20.70 (November 2015) Preparing Activity: USACE Superseding UFGS-04 01 00.91 (May 2012)

UNIFIED FACILITIES GUIDE SPECIFICATIONS

References are in agreement with UMRL dated January 2016

SECTION TABLE OF CONTENTS

DIVISION 04 - MASONRY

SECTION 04 01 20.70

UNIT MASONRY CLEANING AND RESTORATION

11/15

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.2.1 Aggregates

1.2.2 Biocides

1.2.3 Binder

1.2.4 Dispersed Lime Crack Injection

1.2.5 Consolidant

1.2.6 Dutchman

1.2.7 Harvested

1.2.8 In situ

1.2.9 Joint Sealant

1.2.10 Lead Flashing

1.2.11 Lime Wash

1.2.12 Mockup

1.2.13 Mortar

1.2.14 New Elements

1.2.15 Patch

1.2.16 Remediate

1.2.17 Remove

1.2.18 Replace

1.2.19 Repoint

1.2.20 Retool

1.2.21 Stucco

1.2.22 Surface Treatment

1.2.23 Test Panel

1.2.24 Tuckpointing

1.2.25 Water Repellent

1.2.26 Wall System

1.2.27 Masonry Treatment Requirement (MTR)

1.2.28 Saturated Surface Dry (SSD)

1.3 ADMINISTRATIVE REQUIREMENTS

1.3.1 Pre-Installation Meeting

1.4 SUBMITTALS

1.5 QUALITY CONTROL

SECTION 04 01 20.70 Page 1

1.5.1 Quality Control Plan

1.5.2 Qualifications

1.5.2.1 Historic Masonry Consultant

1.5.2.2 Masonry Firm

1.5.2.3 Field Supervisor

1.5.2.4 Masonry Applicator

1.5.3 Project Training Definition and Use

1.5.4 Mortar Analyst

1.5.5 Documentation

1.5.6 Cleaning and Restoration Methods

1.5.6.1 General Procedure

1.5.6.2 Cleaning Products and Procedures

1.5.7 Masonry Restoration Products and Procedures

1.6 DELIVERY, STORAGE, AND HANDLING

1.7 PROJECT/SITE CONDITIONS

1.7.1 Environmental Requirements

1.7.2 Masonry Installation Requirements

1.8 WARRANTY

1.8.1 Cleaning Warranty

1.8.2 Repair Warranty

PART 2 PRODUCTS

2.1 CLEANING MATERIALS

2.1.1 General Requirements

2.1.2 Paint Removers

2.1.3 Chemical Cleaners

2.1.4 Biocides

2.1.5 Liquid Strippable Masking Agent

2.1.6 Cleaning Implements

2.1.7 Water

2.2 REPAIR MATERIALS

2.2.1 General

2.2.2 Mortar and Stucco

2.2.2.1 Testing and Matching

2.2.2.2 Replacement Mortar and Stucco

2.2.2.3 Binder Content

2.2.2.4 Repointing Mortar

2.2.2.5 Admixtures

2.2.3 Crack Injection

2.2.4 Replacement Masonry Materials

2.2.4.1 Clay Brick

2.2.4.2 Stone

2.2.4.3 Terra Cotta

2.2.4.4 Architectural Precast Stone

2.2.5 Surface Treatments

2.2.5.1 General

2.2.5.2 Consolidants

2.2.5.3 Water Repellents

2.2.6 Miscellaneous Materials

2.2.6.1 Cementitious Grout

2.2.6.2 Metal Attachments

2.2.6.3 Lead Flashing

2.3 EQUIPMENT

2.3.1 Cleaning Equipment

2.3.1.1 Sandblasting

2.3.1.2 Water Blasting

2.3.1.3 Alternative Blasting Equipment

2.3.2 Spray Equipment

SECTION 04 01 20.70 Page 2

2.3.3 Drilling Equipment

2.3.4 Compressed Air Supplies

2.3.5 Material Handling and Associated Equipment

2.3.5.1 Mixing, Transporting, and Placing Job Materials

2.3.5.2 Associated Equipment

2.4 Mortar Mix

2.4.1 General

2.4.2 Batching

2.4.3 Cement and Lime Proportions

2.4.4 Sand Proportions

PART 3 EXECUTION

3.1 EXAMINATION

3.1.1 Field (In Situ) Mortar Examination

3.1.2 Taking and Preparation of Samples

3.2 PREPARATION

3.2.1 Protection

3.2.2 Surface Preparation

3.2.3 Equipment and Techniques Demonstration

3.3 MASONRY CLEANING

3.3.1 General

3.3.2 Chemical Cleaners

3.3.3 Paint Removal

3.3.4 Water Cleaning

3.3.4.1 Pressure Spraying

3.3.4.2 Hand Scrubbing

3.3.4.3 Rinsing

3.3.5 Chemical Cleaning

3.3.5.1 General

3.3.5.2 Surface Prewetting

3.3.5.3 Acidic Chemical Cleaning

3.3.5.4 Alkaline Chemical Cleaning

3.3.5.4.1 Prewash Phase

3.3.5.4.2 Afterwash Phase

3.3.5.5 Rinsing and pH Testing

3.4 MASONRY REPAIR

3.4.1 General

3.4.2 Repointing Masonry

3.4.2.1 Wall Preparation

3.4.2.2 Presoaking Masonry / Mortar Consistency / Lifts

3.4.2.3 Compression / Joint Finish / Curing

3.4.2.4 Protection

3.4.3 Retooling Stone Masonry In situ

3.4.4 Masonry Removal and Replacement

3.4.5 Material Repair

3.4.5.1 Selective Demolition

3.4.5.2 Application of Substitute Repair Materials

3.4.5.3 Patch Anchors

3.4.5.4 Cleanup

3.4.6 Dutchman Repairs

3.4.7 Crack Injection with Dispersed Hydrated Lime (DHL)

3.4.7.1 General

3.4.7.2 Application of DHL

3.4.7.3 Tools and Equipment

3.4.8 Surface Treatments

3.4.8.1 Stucco

3.4.8.2 Limewashes

3.4.8.3 Water…