STATEMENTOFWORK.pdf

TECHNICAL PROVISIONS

GENERAL

SEAL AND REPAIR RUNWAY 33R/15L

2U-4-7J

1. DESCRIPTION OF WORK:

1.1 Work to be done: The work covered by this contract consists of furnishing all plant, labor, materials and performing all operations required in connection with the project “Seal and Repair Runway 33R/15L”. Complete the work in strict accordance with specifications and drawings. The work includes, but is not necessarily restricted to, the following items.

1.2 Mill and replace approximately 75,000 square yards of asphalt to a depth of

4” on the runway at Wright Army Airfield. Repaint all of the runway markings to meet Army and FAA regulations.

1.3 DRAWINGS AND SITE VISITS

1.3.1 The drawings indicate the extent of the general location and arrangement of existing conditions. It is strongly recommended that the Contractor visit the site to determine the complexity of the work and the amount of material required to perform this project. Field measurements may be necessary to determine the size and quantity of materials. Conditions which are obvious/visible or which should be reasonably anticipated by the Contractor on inspection will not be considered under the Differing Site Conditions provision of the contract.

2. CONSTRUCTION CONSTRAINTS:

2.1. Time of Performance

2.1.1 Access to Buildings – All work requiring access to building interiors excluding attics, crawl spaces, etc. and all other work shall be performed between 7:30 a.m. and 4:00 p.m. excluding official holidays, unless otherwise indicated or approved by the Contracting Officer. Requests to work during other than these normal hours shall be made in writing at least 36 hours in advance. For example, a request to work on a Saturday should be made no later than noon on Thursday.

2.1.2 Work Requiring Outages – Work requiring outages of utilities or building systems will be accomplished in accordance with prior approved schedules.

2.2. Outages – The Contractor’s work requiring outages of utility or building systems will require 15 day advance notice and will be subject to the approval of the Contracting Officer. Notice shall include type of outage, date, and time outage will commence and estimated duration of outage.

2.3. Continuity – All tools, labor, and materials required to complete any item of work within a given work area or requiring an outage of any building utility or system, shall be available at the site prior to commencement thereof. Once work has commenced on an item of work said work shall be continuously and diligently performed to completion and acceptance.

2.4. Road Closures – Road closures will require a 15-day advance written notice and subject to the Contracting Officer’s approval. Notice shall state reason for closure, date and time closure will commence and estimated duration of closure. A sketch shall be provided showing location of closure area and placement of barricades and signs. Closures shall be limited to a maximum of 5 calendar days.

3. CONSTRUCTION ACTIVITIES:

3.1 The Contractor shall submit a Safety Plan and Construction Schedule to the

Contracting Officer’s Representative (COR) 10 days in advance of any construction activities to arrange specific schedule for performing work as required by this Contract.

4. FACTORS AFFECTING PERFORMANCE UNDER THIS CONTRACT:

4.1 The Contractor shall coordinate use of the site for access, staging, and parking with the Contracting Officer.

4.2 The Contractor shall be responsible for limiting access of his employees and subcontractors to the area of work defined in the Contract. The Contractor shall not have access to restrooms and amenities such as vending machines unless granted permission by the Contracting Officer.

4.3 FS/HAAF has a mandatory recycling program. Unless otherwise specified, the Government retains all salvage rights. Contractors shall recycle construction & demolition debris as required by the Installation's recycling clause, 52.000-4061: RECYCLING, SALVAGE, AND DISPOSAL OF MATERIALS FORT STEWART AND HUNTER ARMY AIRFIELD. Concrete and asphalt material shall be hauled and disposed of off Government property. The contractor shall provide weight tickets of the disposed materials. Weight tickets shall be provided to the COR. Recycled materials will be broken down when delivered to the Recycling Center (to include metal equipment). Scrap metal will be cut down to no larger than 4 square feet in size.

5. AS-BUILT RECORD DRAWINGS:

5.1 The Contractor shall be responsible for maintaining one set of master/record construction drawing prints on the job site on which he/she shall keep a neat and accurate record of all deviations from the original contract documents as the work progresses. The Contractor is responsible for noting all changes and correction on these master/record construction drawing prints promptly as the changes occur in red ink(redline prints) and note date when these changes occurred, but in no case less often than on a weekly basis. The master/record construction drawing prints which are maintained in red ink shall indicate all the changes and modifications incorporated into the work as well as the following:

5.2 Any shop drawings that constitute part of the design shall be included with the record drawings.

5.3 The master/record (redline construction drawings) prints with corrections, such as field changes and contract modifications, shall be certified by the Contractor as to their correctness and submitted to the Contracting Officer’s Representative for approval. Once these provisional master/record (redline construction drawing) prints have been approved by the COR, the COR will obtain a compact disc (CD) of computer generated construction drawings from the DPW Engineering Service Division, Building 1114 at Ft. Stewart or Building 1021 at Hunter AAF, as applicable. The Contractor shall then transfer all corrections from redline construction drawing prints to the compact disc (CD) of computer generated construction drawings. Corrections done shall be in MicroStation “.dgn” format. The Contractor shall note on the computer generated construction drawings the words “AS-BUILT” in the revision block with the next revision number to identify any changes made. Also, revision number identification will be placed where any changes were made. The Contractor shall then submit AS-BUILT compact disc (CD) of computer generated drawing and one (1) AS-BUILT hardcopy with the Contractor’s redline corrections to the COR to insure accuracy that all corrections made were transferred from redline construction drawing prints to AS-BUILT hardcopy prints. Once the COR approves the AS-BUILT hardcopy prints the COR will then turn over to DPW/ ESD/ Drafting section for final approval of AS-BUILT compact disc (CD) of computer generated drawings and at this time the Contractor can receive final payment.

6. SECURITY REQUIREMENTS:

6.1 Unless otherwise noted on the attached AT/OPSEC cover sheet all Contractor employees, to include sub-Contractor employees, requiring access to government installations, facilities and controlled access areas shall complete AT Level I awareness training within 30 calendar days after contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable. The Contractor shall submit certificates of completion for each affected Contractor employee and sub-Contractor employee to the COR or the Contracting officer (if a COR has not been designated) within 30 calendar days after completion of training by all employees and sub-Contractor personnel. AT level I awareness training is available at the following website:

http://jko.jten.mil/courses/atl1/launch.html

6.2 Unless otherwise noted on the attached AT/OPSEC cover sheet the

Contractor and all associated sub-Contractors shall brief all employees on the local iWATCH program. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance with the results reported to the COR

NLT 30 calendar days after contract award.

6.3 The Contractor and all associated sub-Contractor employees shall comply with applicable Installation, facility, and area Commander’s local access and security policies and procedures. If required by this contract, the Contractor shall also provide all information for background checks to meet facility installation access requirements to be accomplished by installation Provost Marshal Office, Director of Emergency Services or Security Office. The Contractor workforce must comply with all personal identity verification requirements as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or Installation change, the Government may require changes in Contractor security matters or processes.

SECTION 02 41 00

DEMOLITION

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.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI A10.6 (2006) Safety Requirements for Demolition Operations

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2008, Change 1-2010; Change 3-2010; Errata 1-2010) Safety and Health Requirements Manual

UNIFIED FACILITIES GUIDE SPECIFICATIONS

UFGS 32 01 16.17 (2008) Cold Milling of Bituminous Pavements

1.2 GENERAL REQUIREMENTS

Do not begin demolition until authorization is received from the Contracting Officer. The work includes demolition, salvage of identified items and materials, and removal of resulting rubbish and debris. Rubbish and debris shall be removed from job site daily, unless otherwise directed, to avoid accumulation at the demolition site. Materials that cannot be removed daily shall be stored in areas specified by the Contracting Officer. In the interest of occupational safety and health, the work shall be performed in accordance with EM 385-1-1.

1.3 REGULATORY AND SAFETY REQUIREMENTS

Comply with federal, state, and local hauling and disposal regulations. In addition to the requirements of the "Contract Clauses," safety requirements shall conform to ANSI A10.6.

1.4 DUST AND DEBRIS CONTROL

Prevent the spread of dust and debris and avoid the creation of a nuisance in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, or pollution. Vacuum and dust the work area Sweep pavements as often as necessary to control the spread of debris that may result in foreign object damage potential to aircraft or vehicles.

1.5 PROTECTION

1.5.1 Traffic Control Signs

Where pedestrian, drivers and aircraft safety is endangered in the area of removal work, use traffic barricades with flashing lights. Anchor barricades in a manner to prevent displacement. Notify the Contracting Officer prior to beginning such work.

1.5.2 Existing Work

Before beginning any demolition work, the Contractor shall survey the site and examine the drawings and specifications to determine the extent of the work. The Contractor shall take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government; any damaged items shall be repaired or replaced as approved by the Contracting Officer. The Contractor shall coordinate the work of this section with all other work and shall construct and maintain shoring, bracing, and supports as required. The Contractor shall ensure that structural elements are not overloaded and shall be responsible for increasing structural supports or adding new supports as may be required as a result of any cutting, removal, or demolition work performed under this contract. Do not overload structural elements or pavements to remain. Provide new supports and reinforcement for existing construction weakened by demolition or removal work. Repairs, reinforcement, or structural replacement must have Contracting Officer approval.

1.5.3 Weather Protection

Where work will be done around buildings, contractor shall protect building and materials from the weather at all times.

1.5.4 Trees

Trees within the project site which might be damaged during demolition, and which are indicated to be left in place, shall be protected by a minimum 4’ high orange fence where directed. The fence shall be securely erected a minimum of 5 feet from the trunk of individual trees or follow the outer perimeter of branches or clumps of trees. Any tree designated to remain that is damaged during the work under this contract shall be replaced in kind or as approved by the Contracting Officer.

1.5.5 Facilities

Protect electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas. The Contractor shall ensure that no elements determined to be unstable are left unsupported and shall be responsible for placing and securing bracing, shoring, or lateral supports as may be required as a result of any cutting, removal, or demolition work performed under this contract.

1.5.6 Protection of Personnel

During the demolition work the Contractor shall continuously evaluate the condition of the structure being demolished and take immediate action to protect all personnel working in and around the demolition site. No area, section, or component of floors, roofs, walls, columns, pilasters, or other structural element will be allowed to be left standing without sufficient bracing, shoring, or lateral support to prevent collapse or failure while workmen remove debris or perform other work in the immediate area.

1.6 BURNING

The use of burning at the project site for the disposal of refuse and debris will not be permitted.

1.7 FOREIGN OBJECT DAMAGE (FOD)

If the contractor is required to work around an airfield all aircraft and aircraft engines will be protected from FOD from debris and waste material lying on airfield pavements.

Remove all such materials that may appear on operational aircraft pavements due to the Contractor's operations.

1.8 RELOCATIONS

Perform the removal and reinstallation of relocated items as indicated with workmen skilled in the trades involved. Repair items to be relocated which are damaged or replace damaged items with new undamaged items as approved by the Contracting Officer.

1.9 USE OF EXPLOSIVES

Use of explosives will not be permitted.

1.10 AVAILABILITY OF WORK AREAS

Areas in which the work is to be accomplished will be available in accordance with the approved work schedule.

PART 2 EXECUTION

2.1 EXISTING FACILITIES TO BE REMOVED

2.1.1 Structures

Existing structures indicated shall be removed as directed.

2.1.2 Utilities and Related Equipment

Remove existing utilities and terminate in a manner conforming to the nationally recognized code covering the specific utility and approved by the Contracting Officer.

When utility lines are encountered that are not indicated on the drawings, the Contracting Officer shall be notified prior to further work in that area.

2.1.3 Paving and Slabs

Remove concrete and asphaltic concrete paving and slabs as directed on site visit.

Provide neat saw cuts at limits of pavement removal as indicated

2.1.4 Asphalt Milling:

Asphalt milling shall be done in accordance with UFGS 32 01 16.17.

2.1.5 Patching

Where removals leave holes and damaged surfaces exposed in the finished work, patch and repair these holes and damaged surfaces to match adjacent finished surfaces. Where new work is to be applied to existing surfaces, perform removals and patching in a manner to produce surfaces suitable for receiving new work. Finished surfaces of patched area shall be flush with the adjacent existing surface and shall match the existing adjacent surface as closely as possible as to texture and finish.

2.2.1 Title to Materials

Except where specified in other sections, all materials and equipment removed, and not reused, shall become the property of the Contractor and shall be removed from Government property. Title to materials resulting from demolition, and materials and equipment to be removed, is vested in the Contractor upon approval by the Contracting Officer of the Contractor's demolition and removal procedures, and authorization by the Contracting Officer to begin demolition. The Government will not be responsible for the condition or loss of, or damage to, such property after contract award. Materials and equipment shall not be viewed by prospective purchasers or sold on the site.

2.3 CLEANUP

Debris and rubbish shall be removed from basement and similar excavations.

Debris shall be removed and transported in a manner that prevents spillage on streets or adjacent areas. Local regulations regarding hauling and disposal shall apply.

-- End of Section --

SECTION 31 11 00

CLEARING AND GRUBBING

PART 1 – GENERAL

1. DEFINITIONS:

1.1 Clearing: Clearing shall consist of the felling, trimming, and cutting of trees into sections and the satisfactory disposal of the trees and other vegetation designated for removal, including down timber, snags, brush, and rubbish occurring in the areas to be cleared.

1.2 Grubbing: Grubbing shall consist of the removal and disposal of stumps, roots larger than 3 inches in diameter, and matted roots from the designated grubbing areas.

PART 2 - EXECUTION

2. CLEARING: Trees, stumps, roots, brush, and other vegetation in areas to be cleared shall be removed completely and the hole backfilled, except such trees and vegetation as may be indicated or directed to be left standing. Trees designated to be left standing within the cleared areas shall be trimmed of dead branches 1-1/2 inches or more in diameter and shall be trimmed of all branches the heights indicated or directed. Limbs and branches to be trimmed shall be neatly cut close to the bole of the tree or main branches.

Cuts more than 1-1/2 inches in diameter shall be painted with approved bituminous tree-wound paint. Trees and vegetation to be left standing shall be protected from damage incident to clearing, grubbing, and construction operations by the erection of barriers or by such other means as the circumstances require.

3. GRUBBING: Material to be grubbed, together with logs and other organic or metallic debris not suitable for foundation purposes, shall be removed to a depth of not less than 18 inches below the original surface level of the ground in areas indicated to be grubbed and in areas indicated as construction areas under this contract, such as areas for buildings, and areas to be paved. Depressions made by grubbing shall be filled with suitable material and compacted to make the surface conform to the original adjacent surface of the ground.

SECTION 31 23 00.00 20

EARTHWORK, EXCAVATION AND FILL

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

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM D 1556 (2007) Density of Soil In-Place by the Sand-Cone Method

ASTM D 1557 (2009) Moisture-Density Relations of Soils and Soil- Aggregate

Mixtures Using 10-lb. Rammer and l8-in. Drop

ASTM D 2167 (2008) Density and Unit Weight of Soil In-Place by the Rubber

Balloon Method

ASTM D 2487 (2010) Classification of Soils for Engineering Purposes

ASTM D 3017 (2005) Water Content in Soils and Rock in Place By Nuclear

Methods (Shallow Depth)

GEORGIA SOIL AND WATER CONSERVATION COMMISSION

Manual for Erosion and Sediment Control in Georgia

1.2 DEFINITIONS

1.2.1 Satisfactory Materials: Materials classified in ASTM D 2487 as GW, GP, and SW, and free from roots and other organic matter, trash, debris, and frozen materials and stones larger than 6 inches in any dimension are satisfactory.

1.2.2 Unsatisfactory Materials: Materials which do not comply with the requirements for satisfactory materials are unsatisfactory. Materials classified in ASTM D 2487 as PT, OH, and OL are unsatisfactory. Unsatisfactory materials also include man-made fills, refuse, or backfills from previous construction.

1.2.3 Cohesionless and Cohesive Materials: Cohesive materials include materials classified as GC, SC, ML, CL, MH, and CH. Cohesionless materials include materials classified in ASTM D 2487 as GW, GP, SW, and SP. Materials classified as GM and SM will be identified as cohesionless only when the fines have a plasticity index of zero.

1.2.4 Degree of Compaction: Degree of compaction is a percentage of the maximum density obtained by the test procedure presented in ASTM D 1557, Method D abbreviated below as a percent of laboratory maximum density.

1.2.5 Topsoil: Material obtained from top 3 inches of site surface soil.

1.3 SUBMITTALS: The Contractor shall submit results of all soil tests within 2 working days after receiving the test data results from the laboratory.

PART 2 PRODUCTS

2. BORROW MATERIAL AT FT STEWART PROJECTS ONLY: Borrow material shall be secured from an existing pit located near project site. Pit location is shown on drawings.

The contractor shall bare the expense of developing the sources, including rights-of-way for hauling, clearing, dewatering, grubbing and disposal of debris to expand the pit location.

2.1 The contractor will maintain or create a rim ditch to maximize accessibility to borrow pit materials and ultimately to optimize excavation of that material.

2.2 The contractor will utilize a water pump, where and when appropriate allowing him access to fill materials in a manner consistent with proper surfacing mining procedures.

2.3 The contractor will be required to maintain erosion and sedimentation control at borrow pit location.

2.4 All borrow pit and excavation actions shall support the objective of the borrow pit eventually becoming a recreational fishpond, if soil conditions, location and ground water resources favor such development. To accomplish this objective the average depth, when abandoned, will be 6 feet minimum and 12 feet maximum.

2.5 The contractor will be responsible for maintaining a 4:1-5:1 slope on all pit walls/edges and marking these slopes/edges in a manner as to prevent any foot or vehicle traffic from inadvertently falling into the pit.

2.6 Erosion & Sedimentation Control Measures: Remain within the boundaries of the borrow pit, which are marked by "surrounding trees and the perimeter road", while making every effort to retain and/or create a buffer zone(s) of undisturbed/natural vegetation following all guideline within Georgia's Best Management Practices to prevent silts and sediments from leaving the borrow pit area and entering the waters of the State of Georgia.

2.7 Water Quality Control Measures: Borrow pit excavation shall not be conducted within 100 feet of the banks of any waters of the State of Georgia, nor discharges to the water or ground to ensure no adverse affects on these waters.

2.7.1 No Point Source discharges shall be allowed without coordination with the Environmental Branch.

2.8 Sensitive/Special Sites Measures: If historical or archaeological resources are encountered during excavation of this borrow pit. Stop working until the Environmental Branch has cleared the pit. Immediately contact the C0R and the Cultural Resources Office - 767-3359/2010

PART 3 EXECUTION

3.1 CONSERVATION OF TOPSOIL: Where indicated, topsoil shall be removed to a depth of 3 inches without contamination with subsoil and stockpiled convenient to areas for later application or at locations specified. Topsoil shall be removed to full depth and shall be stored separate from other excavated materials and piled free of roots, stones, and other undesirable materials. Any surplus of topsoil from excavations and grading shall be stockpiled in locations as directed by the COR. The Contractor shall be responsible for the loading and hauling costs for moving excess topsoil.

3.2 EXCAVATION: After topsoil removal has been completed, excavation of every description, regardless of material encountered, within the grading limits of the project shall be performed to the lines and grades indicated. Satisfactory excavation material shall be transported to and placed in fill areas within the limits of the work. All unsatisfactory material including any soil which is disturbed by the Contractor's operations or softened due to exposure to the elements and water and surplus material shall be removed from the site and disposed of in areas approved for surplus material storage. In the event that it is necessary to remove unsatisfactory material to a depth greater than specified, the Contracting Officer shall be notified and an adjustment in the contract price will be considered in accordance with the contract. Excavations carried below the depths indicated, without specific directions, shall, except as otherwise specified, be refilled to the proper grade with satisfactory material as directed. All additional work of this nature shall be at the Contractor's expense. Excavation and filling shall be performed in a manner and sequence that will provide drainage at all times. Excavations shall be kept free from water while construction therein is in progress. Material required for fills in excess of that produced by excavation within the grading limits shall be obtained from borrow areas.

3.3 DITCHES, GUTTERS, AND CHANNEL CHANGES: Ditches, gutters, and channel changes shall be cut accurately to the cross sections and grades indicated. All roots, stumps, rock, and foreign matter in the sides and bottom of ditches, gutters, and channel changes shall be trimmed and dressed or removed to conform to the slope, grade, and shape of the section indicated. Care shall be taken not to excavate ditches and gutters below the grades indicated. Excessive ditch and gutter excavation shall be backfilled to grade either with satisfactory, thoroughly compacted material or with suitable stone or cobble to form an adequate gutter paving as directed. All ditches and gutters excavated under this section shall be maintained until final acceptance of the work. Satisfactory material excavated from ditches and channel changes shall be placed in fill areas.

Unsatisfactory and excess excavated material shall be disposed of. No excavated material shall be deposited closer to the edges of the ditches than indicated and in no case less than 3 feet.

3.4 BACKFILL ADJACENT TO STRUCTURES: Backfill adjacent to structures shall be placed and compacted uniformly in such manner as to prevent wedging action or eccentric loading upon or against the structures. Slopes bounding or within areas to be backfilled shall be stepped or serrated to prevent sliding of the fill. During backfilling operations and in the formation of embankments, equipment that will overload the structure in passing over and compacting these fills shall not be used. Backfill for storm drains and subdrains, including the bedding and backfill for structures other than culverts and drains, shall conform to the additional requirements in other applicable sections.

3.5 PREPARATION OF GROUND SURFACE FOR FILL: All vegetation, such as roots, brush, heavy sods, heavy growth of grass, and all decayed vegetable matter, rubbish, and other unsatisfactory material within the area upon which fill is to be placed, shall be stripped or otherwise removed before the fill is started. In no case will unsatisfactory material remain in or under the fill area. Sloped ground surfaces steeper than one vertical to four horizontal on which fill is to be placed shall be plowed, stepped, or broken up, as directed, in such manner that the fill material will bond with the existing surface. Prepared surfaces on which compacted fill is to be placed shall be wetted or dried as may be required to obtain the specified moisture content and density.

3.6 FILLS AND EMBANKMENTS: Fills and embankments shall be constructed at the locations and to lines and grades indicated. The completed fill shall conform to the shape of the typical sections indicated or shall meet the requirements of the particular case.

Satisfactory material obtained during excavation may be used in forming required fill. Fill shall be satisfactory material and shall be reasonably free from roots, other organic material, and trash and from stones having a maximum diameter greater than 6 inches.

No frozen material will be permitted in the fill. Stones having a dimension greater than 4 inches shall not be permitted in the upper 6 inches of fill or embankment. The material shall be placed in successive horizontal layers of 12 inches in loose depth for the full width of the cross section and shall be compacted as specified. Each layer shall be compacted before the over-laying lift is placed. Moisture content of the fill or backfill material shall be adjusted by wetting or aerating, as required, to within plus or minus 5 percent of optimum moisture content as determined from laboratory tests specified in paragraph

"DEFINITIONS."

3.7 COMPACTION: Except for slab areas, each layer of the fill or embankment shall be compacted to at least 90 percent of laboratory maximum density. Areas for slabs and other areas indicated as requiring compaction suitable for paved areas shall be compacted to at least the percentage of laboratory maximum density shown in the following tabulation for specific ranges of depth below the surface of the pavement:

Percentage of Laboratory Maximum Density Required

Below Fill Fill Cut Cut Slab --------- ------------ --------- ------- Surface Cohesive Cohesionless Cohesive Cohesionless (inches) Materials Materials Materials Materials 12 90 95 90 95

3.8 FINISHED EXCAVATION, FILLS, AND EMBANKMENTS: All areas covered by the project, including excavated and filled sections and adjacent transition areas, shall be uniformly smooth- graded. The finished surface shall be reasonably smooth, compacted, and free from irregular surface changes. The degree of finish shall be that ordinarily obtainable from blade-grader operations, except as otherwise specified. Ditches and gutters shall be finished to permit adequate drainage. The surface of areas to be turfed shall be finished to a smoothness suitable for the application of turfing materials. For subgrade areas to be paved, the following shall be accomplished as required:

(a) soft or otherwise unsatisfactory material shall be replaced with satisfactory excavated material or other approved materials;

(b) rock encountered in the cut sections shall be excavated to a depth of 6 inches below finished grade for the subgrade;

(c) low areas resulting from removal of unsatisfactory material or from excavation of rock shall be brought up to required grade with satisfactory materials, and the entire subgrade shall be shaped to line, grade, and cross section and shall be compacted as specified. The surface of embankments or excavated areas for road construction or other areas on which a base course or pavement is to be placed shall vary not more than 0.05 foot from the established grade and approved cross section. Surfaces other than those that are to be paved shall be finished not more than 0.05 foot above or below the established grade or approved cross section.

3.9 PLACING TOPSOIL: On areas to receive topsoil, the compacted subgrade soil shall be scarified to a 2-inch depth for bonding of topsoil with subsoil. Topsoil then shall be spread evenly to a thickness of 3 inches and graded to the elevations and slopes shown.

Topsoil shall not be spread when frozen or excessively wet or dry. Material required for topsoil in excess of that produced by excavation within the grading limits shall be obtained from areas indicated.

3.10 FIELD TESTING CONTROL: Testing shall be the responsibility of the Contractor and shall be performed by an approved commercial testing laboratory or by the Contractor subject to approval. Field density and moisture content tests shall be performed on every 2500 square feet of each 6-inch lift placed and finished subgrade if fill is not a requirement. Field in-place density shall be determined in accordance with ASTM D 1556, or ASTM D 2167. ASTM D 3017 shall be used to determine the moisture content of the soil. The calibration curves furnished with the moisture gauges shall be checked along with density calibration checks as described in ASTM D 3017. The calibration checks of both the density and moisture gauges shall be made at the beginning of a job on each different type of material encountered and at intervals as directed.

3.11 PROTECTION: Newly graded areas shall be protected from traffic and from erosion, and any settlement or washing away that may occur from any cause, prior to acceptance, shall be repaired and grades re-established to the required elevations and slopes. All work shall be conducted in accordance with the environmental protection requirements of the contract.

3.12 EROSION CONTROL: Material, installation requirements and maintenance for Silt Fencing, Construction Exits, Curb Inlet Filters, Temporary Erosion Control Blankets/Matting and related items shall meet the requirements of the Manual for Erosion and Sediment Control in Georgia.

3.13 Rip Rap: Material shall be placed as directed during site scoping. Stone used shall be Type 3 as shown in the Georgia Department of Transportation Standard Specification.

The largest pieces of material shall have a minimum approximate volume of one cubic foot. At less 35% of the mass shall comprise of pieces which weigh 15 pounds or more.

Contractor shall install geotextile fabric under Rip Rap. Fabric shall be GTF-400E as manufactured by Exxon Geotextiles or approved equal. Fabric shall be installed in accordance with manufacturers installation instructions. Fabric shall be installed in the direction of water flow with joints overlapping a minimum of 12” and fastened to the ground with stakes to prevent moment prior to the placement of stones. Fabric shall be approved for placement in fresh water.

3.14 Water Monitoring: Project sites requiring a NOI shall be monitored in accordance with the State of Georgia Department of Natural Resources Environmental Protection Division. The following applies: General NPDES Permit For Storm Water Discharges From Stand Alone Construction Activities GAR 100001, General NPDES Permit For Storm Water Discharge From Infrastructure Construction Activities GAR 100002 and General NPDES Permit For Storm Water Discharge From Common Development Construction Activities GAR 100003. Cost for the NOI submittal and water sampling before starting work will be at the expense of the government. Contractor to bare all monitoring cost.

SECTION 32 01 16.17

COLD MILLING OF BITUMINOUS PAVEMENTS

08/08

1.1 UNIT PRICES

1.1.1 Measurement

The quantity of milled pavement will be the number of square yards completed and accepted as determined by the Contracting Officer. Determine the number of square yards of milled pavement by measuring the length and width of the milled surface within the specified work area. Measurement to determine the area shall be to the closest inch for width and the closest foot for length.

1.1.2 Payment

Payment will be to the nearest square yard. No payment will be made for milling outside the specified area of work.

1.2 QUALITY ASSURANCE

1.2.1 Grade

Conform the finished milled surfaces to the lines, grades, and cross sections indicated. The finished milled-pavement surfaces shall vary not more than 1/4 inch from the established plan grade line and elevation.

Finished surfaces at a juncture with other pavements shall coincide with the finished surfaces of the abutting pavements. The deviations from the plan grade line and elevation will not be permitted in areas of pavements where closer conformance with planned grade and elevation is required for the proper functioning of appurtenant structures involved.

1.2.2 Surface Smoothness

Finished surfaces shall not deviate from the testing edge of a straightedge more than 1/4 inch in the transverse or longitudinal direction.

1.2.3 Traffic Control

Provide all necessary traffic controls during milling operations.

1.3 ENVIRONMENTAL REQUIREMENTS

Milling shall not be performed when there is accumulation of snow or ice on the pavement surface.

Not Used

3.1 EXECUTING EQUIPMENT

3.1.1 Cold-Milling Machine

Provide a cold-milling machine which is self-propelled, capable of milling the pavement to a specified depth and smoothness and of establishing grade control; with means of controlling transverse slope and dust produced during the pavement milling operation. The machine shall have the ability to remove the millings or cuttings from the pavement and load them into a truck. The milling machine shall not cause damage to any part of the pavement structure that is not to be removed.

3.1.2 Cleaning Equipment

Provide cleaning equipment suitable for removing and cleaning loose material from the pavement surface.

3.1.3 Straightedge

Furnish and maintain at the site, in good condition, one 12 foot straightedge or other suitable device for each milling machine, for testing the finished surface. Make straightedge available for Government use.

Straightedges shall be constructed of aluminum or other lightweight metal, with blades of box or box-girder cross section with flat bottom reinforced to insure rigidity and accuracy. Straightedges shall have handles to facilitate movement on the pavement.

3.2 Omitted.

3.3 MILLING OPERATION

A minimum of seven days’ notice is required, prior to start work, for the Contracting Officer to coordinate the milling operation with other activities at the site. Make sufficient passes so that the designated area is milled to the grades and cross sections indicated. The milling shall proceed with care and in depth increments that will not damage the pavement below the designated finished grade. Repair or replace, as directed, items damaged during milling such as manholes, valve boxes, utility lines, pavement that is torn, cracked, gouged, broken, or undercut. The milled material shall be removed from the pavement and loaded into trucks. Conduct cold-milling operation to ensure that only bituminous pavement is removed and base course is not disturbed. Leave in place a layer of bituminous pavement min. 1/2 inch thick.

3.4 GRADE AND SURFACE-SMOOTHNESS TESTING

3.4.1 Grade-Conformance Tests

Test the finished milled surface of the pavement for conformance with the plan-grade requirements and for acceptance by the Contracting Officer by running lines of levels at intervals of 25 feet longitudinally and 25 feet transversely to determine the elevation of the completed pavement. Correct variations from the designated grade line and elevation in excess of the plan-grade requirements as directed. Skin patching for correcting low areas will not be permitted. Remove and replace the deficient low area.

Remove sufficient material to allow at least 1 inch of asphalt concrete to be placed.

3.4.2 Surface-Smoothness Tests

After completion of the final milling, the finished milled surface will be tested by the Government with a straightedge. Other approved devices may be used, provided that when satisfactorily and properly operated, such devices reveal all surface irregularities exceeding the tolerances specified. Correct surface irregularities that depart from the testing edge by more than 1/4 inch. Skin patching for correcting low areas will not be permitted. Remove and replace the deficient low area. Remove sufficient material to allow at least 1 inch of asphalt concrete to be placed.

3.5 REMOVAL OF MILLED MATERIAL

Material that is removed shall become the property of the Contractor and removed from the site.

--End of Section--

SECTION 32 01 17.16

SEALING OF CRACKS IN BITUMINOUS PAVEMENTS

Determine the quantity of each sealing item to be paid for by actual measurement of the number of linear feet of in-place material that has been approved.

Payment will be made at the contract unit bid prices per linear foot for the sealing items scheduled. Include in the unit bid prices the cost of all labor, materials, and the use of all equipment and tools required to complete the work.

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.

ASTM INTERNATIONAL (ASTM)

ASTM C509 (2006; R 2011) Elastomeric Cellular

Preformed Gasket and Sealing Material

ASTM D6690 (2012) Standard Specification for Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt Pavements

ASTM D789 (2007; E 2010) Determination of Relative

Viscosity and Moisture Content of Polyamide (PA)

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. 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 SUBMITTAL PROCEDURES:

SD-03 Product Data

Installation of Sealant

SD-04 Samples

Materials; G

SD-06 Test Reports

Test Requirements

1.4 QUALITY ASSURANCE

Test the crack sealant and backup material, when required, for conformance with the referenced applicable material specification. Furnish samples of materials, in sufficient quantity to be tested upon request. Conformance with the test requirements of the laboratory tests specified will not constitute final acceptance of the materials. Submit reports of all tests. Perform testing of the materials in an approved, independent laboratory; submit certified copies of the test reports for approval 7 days prior to the use of the materials at the job site. Samples will be retained by the Government for possible future testing, should the materials appear defective during or after application. Final acceptance will be based on the performance of the in-place materials.

1.5 DELIVERY, STORAGE, AND HANDLING

Inspect materials delivered to the job site for defects; unload, and store them with a minimum of handling to avoid damage. Provide storage facilities at the job site to protect materials from weather and to maintain them at the temperatures recommended by the manufacturer.

1.6 ENVIRONMENTAL REQUIREMENTS

The ambient air temperature and the pavement temperature within the joint wall shall be a minimum of 50 degrees F and rising at the time of application of the materials. Do not apply sealant if moisture is observed in the crack.

2.1 SEALANTS

Provide sealants conforming to ASTM D6690, Type II or ASTM D6690, Type I.

Usage of sealing materials for sealing cracks in the various paved areas indicated on the drawings shall be as follows:

Area Sealing Material

Runway and Shoulders ASTM D6690, Type I

2.2 BACKUP MATERIALS

Provide backup material that is a compressible, nonshrinking, nonstaining, nonabsorptive material and nonreactive with the crack sealant. The melting point of the backing material shall be at least 5 degrees F greater than the maximum pouring temperature of the sealant being used, when tested in accordance with ASTM D789. The material shall have a water absorption of not more than 5 percent by weight when tested in accordance with ASTM C509.

The backup material shall be 25 percent (plus or minus 5 percent) larger in diameter than the nominal width of the crack.

3.1 EXECUTING EQUIPMENT

Machines, tools, and equipment used in the performance of the work required by this section shall be approved before the work is started and shall be maintained in satisfactory condition at all times.

3.1.1 Routing Equipment

Provide routing equipment which is a self-powered machine operating a power driven tool or bit specifically designed for routing bituminous pavements.

The bit shall rotate about a vertical axis at sufficient speed to cut a smooth vertical-walled reservoir in the pavement surface and shall maintain accurate cutting without damaging the sides or top edges of the reservoir.

Provide a router capable of following the trace of the crack without deviation. The use of rotary impact routing devices may be permitted if vertical-sided carbide tipped bits are used.

3.1.2 Concrete Saw

Provide a self-propelled power saw with small diameter ( 6 inches or less) water-cooled diamond or abrasive saw blades for cutting cracks to the depths and widths specified and for removing filler that is embedded in the cracks or adhered to the crack faces. The diameter of the saw blade shall be small enough to allow the saw to closely follow the trace of the crack.

3.1.3 Sandblasting Equipment

Include in the sandblasting equipment an air compressor, hose, and long-wearing venturi-type nozzle of proper size, shape and opening. The maximum nozzle opening shall not exceed 1/4 inch. The air compressor shall be portable; and shall be capable of furnishing not less than 150 cfm and maintaining a line pressure of not less than 90 psi at the nozzle while in use. Demonstrate compressor capability under job conditions before approval. The compressor shall be equipped with traps that will maintain the compressed air free of oil and water. The nozzle shall have an adjustable guide that will hold the nozzle aligned with the crack about 1 inch above the pavement surface. Adjust the height, angle of inclination and the size of the nozzle as necessary to secure satisfactory results.

3.1.4 Waterblasting Equipment

Include with the waterblasting equipment a trailer-mounted water tank, pumps, high-pressure hose, wand with safety release cutoff control, nozzle, and auxiliary water resupply equipment. The water tank and auxiliary resupply equipment shall be of sufficient capacity to permit continuous operations. The hose, wand, and nozzle shall be capable of cleaning the crack faces and the pavement surface on both sides of the crack for a width of at least 1/2 inch. A pressure gauge mounted at the pump shall show at all times the pressure inpsi at which the equipment is operating.

3.1.5 Hand Tools

Hand tools may be used, when approved, for removing defective sealant from cracks and repairing or cleaning the crack faces.

3.1.6 Crack Sealing Equipment

Provide unit applicators, used for heating and installing the hot-poured crack sealant materials, that are mobile and equipped with a double-boiler, agitator-type kettle with an oil medium in the outer space for heat transfer; a direct-connected pressure-type extruding device with a nozzle shaped for inserting in the crack to be filled; positive temperature devices for controlling the temperature of the transfer oil and sealant;

and a recording type thermometer for indicating the temperature of the sealant. Allow the sealant to circulate through the delivery hose and return to the inner kettle when not in use, due to the applicator unit design .

3.2 PREPARATION OF CRACKS

Immediately before the installation of the crack sealant, thoroughly clean the cracks to remove oxidized pavement, loose aggregate and foreign debris. The preparation shall be as follows:

3.2.1 Cracks

3.2.1.1 Hairline Cracks

Cracks that are less than 1/4 inch wide do not need to be sealed.

3.2.1.2 Small Cracks

Cracks that are 1/4 to 3/4 inch wide shall be routed to a nominal width 1/8 inch greater than the existing nominal width and to a depth not less than 3/4 inch, sandblasted and cleaned using compressed air.

3.2.1.3 Medium Cracks

Cracks that are 3/4 to 2 inches wide shall be sandblasted and cleaned using compressed air.

3.2.1.4 Large Cracks

Cracks that are greater than 2 inches wide shall be repaired using pothole repair techniques instead of sealing.

3.2.2 Existing Sealant Removal

Cut loose the in-place sealant from both crack faces and to a depth shown on the drawings, using a concrete saw or hand tools as specified in paragraph EQUIPMENT. Depth shall be sufficient to accommodate any backup material that is required to maintain the depth of new sealant to be installed. Prior to further cleaning operations, remove all old loose sealant remaining in the crack opening by blowing with compressed air.

3.2.3 Routing

Perform routing of the cracks using a rotary router with a bit that is at least 1/8 inch wider than the nominal width of the crack to remove all residual old sealant (resealing), oxidized pavement and any loose aggregate in the crack wall.

3.2.4 Sawing

Perform sawing of the cracks using a power-driving concrete saw as specified in paragraph EQUIPMENT. Stiffen the blade as necessary with suitable dummy (or used) blades or washers. Immediately following the sawing operation, clean the crack opening using a water jet to remove all saw cuttings and debris.

3.2.5 Sandblasting

Sandblast clean the crack faces and the pavement surfaces extending a minimum of 1/2 inch from the crack edges. Use a multiple-pass technique until the surfaces are free of dust, dirt, old sealant residue, or foreign debris that might prevent the sealant material from bonding to the asphalt pavement. After final cleaning and immediately prior to sealing, blow out the cracks with compressed air and leave them completely free of debris and water. Ensure that sandblasting does not damage the pavement.

3.2.6 Backup Material

Use backup material on all cracks that have a depth greater than 3/4 inch.

Insert the backup material into the lower portion of the crack as shown on the drawings. Ensure that the backup material is placed at the specified depth and is not stretched or twisted during installation.

3.2.7 Rate of Progress of Crack Preparation

Limit the stages of crack preparation, which include routing, sandblasting of the crack faces, air pressure cleaning and placing of the backup material, to only that linear footage that can be sealed during the same day.

3.3 PREPARATION OF SEALANT

Do not heat hot-poured sealants in excess of the safe heating temperature recommended by the manufacturer, as shown on the sealant containers.

Withdraw and waste sealant that has been overheated or subjected to application temperatures for over 4 hours or that has remained in the applicator at the end of the…