W912QR22R0020_Specs-0004.pdf

W912QR22R0020_Specs-0004

W912QR22R0020

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

AMDT 0004 SUMMARY OF CHANGES

Solicitation: W912QR22R0020 Project: Repair Airfield Lighting Circuits / Repair Taxiway G / Repair Overruns / Repair Runway and

Shoulders / Repair Taxiway C Location: Grissom Air Reserve Base, Indiana

SEPCIFICATIONS:

1. The following Specification Sections have been REPLACED in their entirety:

a. 01 50 00 – revised paragraph 2.3 and 3.7

b. 32 11 13.13- revised paragraph 2.2.4

DRAWINGS:

2. The following Drawings have been REPLACED in their entirety:

a. CG109 – revised plan view

b. C-503 – revised details G9, G13, M18, H18, D4 and D16

c. C-531 – revised detail F5 and D4

d. CP132 – revised scale notation A15

e. C-514 -revised detail F5 and D4

END SUMMARY OF CHANGES.

(End of Summary of Changes)

P2# - 484195, 484188, 484194, 484190 - Various Projects at GARB Grissom Air Reserve Base, Indiana

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 50 00

TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

11/20

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 CONSTRUCTION SITE PLAN

1.4 DOD CONDITION OF READINESS (COR)

1.5 NOT USED

PART 2 PRODUCTS

2.1 TEMPORARY SIGNAGE

2.1.1 Bulletin Board

2.1.2 Project Identification Signs

2.1.3 Warning Signs

2.2 TEMPORARY TRAFFIC CONTROL

2.2.1 Haul Roads

2.2.2 Barricades

2.3 FENCING

2.3.1 Polyethylene Mesh Safety Fencing

2.3.2 Chain Link Panel Fencing

2.3.3 Post-Driven Chain Link Fencing

2.4 TEMPORARY WIRING

PART 3 EXECUTION

3.1 EMPLOYEE PARKING

3.2 AVAILABILITY AND USE OF UTILITY SERVICES

3.2.1 Temporary Utilities

3.2.2 Not Used

3.2.3 Not Used

3.2.4 Not Used

3.2.5 Not Used

3.2.6 Sanitation

3.2.7 Telephone

3.2.8 Fire Protection

3.3 TRAFFIC PROVISIONS

3.3.1 Maintenance of Traffic

3.3.2 Protection of Traffic

3.3.3 Rush Hour Restrictions

3.3.4 Dust Control

3.4 CONTRACTOR'S TEMPORARY FACILITIES

3.4.1 Administrative Field Offices

3.4.2 Quality Control Manager Records and Field Office

3.4.3 Storage Area

3.4.4 Supplemental Storage Area

3.4.5 Appearance of Trailers

01 50 00 Page 1 Amendment 0004

3.4.6 Safety Systems

3.4.7 Weather Protection of Temporary Facilities and Stored Materials

3.4.7.1 Building and Site Storm Protection

3.5 GOVERNMENT FIELD OFFICE

3.5.1 Resident Engineer's Office

3.5.2 Trailer-Type Mobile Office

3.6 PLANT COMMUNICATIONS

3.7 TEMPORARY PROJECT SAFETY FENCING

3.8 CLEANUP

3.9 RESTORATION OF STORAGE AREA

-- End of Section Table of Contents --

01 50 00 Page 2

SECTION 01 50 00

TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

11/20

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.

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2020; ERTA 20-1 2020; ERTA 20-2 2020; TIA

20-1; TIA 20-2; TIA 20-3; TIA 20-4)

National Electrical Code

NFPA 241 (2019) Standard for Safeguarding Construction, Alteration, and Demolition Operations

U.S. ARMY CORPS OF ENGINEERS (USACE)

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

U.S. FEDERAL HIGHWAY ADMINISTRATION (FHWA)

MUTCD (2009; Rev 2012) Manual on Uniform Traffic Control Devices

1.2 SUBMITTALS

Government approval/acceptance is required for submittals with a "G" designation; submittals not having a "G" designation are for Contractor Quality Control approval, or for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with LRL Section 01 33 00.00 06 SUBMITTAL PROCEDURES::

SD-01 Preconstruction Submittals

Construction Site Plan ; G

Traffic Control Plan ; G

Haul Road Plan ; G

1.3 CONSTRUCTION SITE PLAN

Prior to the start of work, submit for Government approval a site plan showing the locations and dimensions of temporary facilities (including layouts and details, equipment and material storage area (onsite and offsite), and access and haul routes, avenues of ingress/egress to the

01 50 00 Page 3 fenced area and details of the fence installation. Identify any areas which may have to be graveled to prevent the tracking of mud. Indicate if the use of a supplemental or other staging area is desired. Show locations of safety and construction fences, site trailers, construction entrances, trash dumpsters, temporary sanitary facilities, and worker parking areas.

1.4 DOD CONDITION OF READINESS (COR)

DOD will set the Condition of Readiness (COR) based on the weather forecast for sustained winds 50 knots ( 58 mph ) or greater. Contact the Contracting Officer for the current COR setting.

Monitor weather conditions a minimum of twice a day and take appropriate actions according to the approved Emergency Plan in the accepted Accident Prevention Plan, EM 385-1-1 Section 01 Emergency Planning and the instructions below.

Unless otherwise directed by the Contracting Officer, comply with:

a. Condition FOUR (Sustained winds of 58 mph or greater expected within 72 hours): Normal daily jobsite cleanup and good housekeeping practices. Collect and store in piles or containers scrap lumber, waste material, and rubbish for removal and disposal at the close of each work day. Maintain the construction site including storage areas, free of accumulation of debris. Stack form lumber in neat piles less than 3.3 feet high. Remove all debris, trash, or objects that could become missile hazards. Review requirements pertaining to "Condition THREE" and continue action as necessary to attain "Condition FOUR" readiness. Contact Contracting Officer for weather and COR updates and completion of required actions.

b. Condition THREE (Sustained winds of 58 mph or greater expected within 48 hours): Maintain "Condition FOUR" requirements and commence securing operations necessary for "Condition ONE" which cannot be completed within 18 hours. Cease all routine activities which might interfere with securing operations. Commence securing and stow all gear and portable equipment. Make preparations for securing buildings. Reinforce or remove formwork and scaffolding. Secure machinery, tools, equipment, materials, or remove from the jobsite.

Expend every effort to clear all missile hazards and loose equipment from general base areas. Contact Contracting Officer for weather and COR updates and completion of required actions. Review requirements pertaining to "Condition TWO" and continue action as necessary to attain "Condition THREE" readiness.

c. Condition TWO (Sustained winds of 58 mph or greater expected within 24 hours): Secure the jobsite, and leave Government premises.

d. Condition ONE. (Sustained winds of 58 mph or greater expected within 12 hours): Contractor access to the jobsite and Government premises is prohibited.

01 50 00 Page 4

1.5 NOT USED

PART 2 PRODUCTS

2.1 TEMPORARY SIGNAGE

2.1.1 Bulletin Board

Prior to the commencement of work activities, provide a clear weatherproof covered bulletin board not less than 36 by 48 inches in size for displaying the Equal Employment Opportunity poster, a copy of the wage decision contained in the Contract, Wage Rate Information poster, Safety and Health Information as required by EM 385-1-1 Section 01 and other information approved by the Contracting Officer. Coordinate requirements herein with 01 35 26.00 06 GOVERNMENTAL SAFETY REQUIREMENTS. Locate the bulletin board at the project site in a conspicuous place easily accessible to all employees, and in location as approved by the Contracting Officer.

2.1.2 Project Identification Signs

The requirements for the signs, their content, and location are as indicated. Erect signs within 15 days after receipt of the notice to proceed. Correct the data required by the safety sign daily, with light colored metallic or non-metallic numerals.

2.1.3 Warning Signs

Post temporary signs, tags, and labels to give workers and the public adequate warning and caution of construction hazards according to the EM 385-1-1 Section 04. Attach signs to the perimeter fencing every 150 feet warning the public of the presence of construction hazards. Signs must require unauthorized persons to keep out of the construction site.

Correct the data required by safety signs daily. Post signs at all points of entry designating the construction site as a hard hat area.

2.2 TEMPORARY TRAFFIC CONTROL

2.2.1 Haul Roads

Construct access and haul roads necessary for proper prosecution of the work under this Contract in accordance with EM 385-1-1 Section 04.

Construct with suitable grades and widths; avoid sharp curves, blind corners, and dangerous cross traffic. Submit haul road plan for approval. Provide necessary lighting, signs, barricades, and distinctive markings for the safe movement of traffic. The method of dust control, although optional, must be adequate to ensure safe operation at all times. Location, grade, width, and alignment of construction and haul roads are subject to approval by the Contracting Officer. Lighting must be adequate to assure full and clear visibility for full width of haul road and work areas during any night work operations.

2.2.2 Barricades

Erect and maintain temporary barricades to limit public access to hazardous areas. Barricades are required whenever safe public access to paved areas such as roads, parking areas or sidewalks is prevented by construction activities or as otherwise necessary to ensure the safety of both pedestrian and vehicular traffic. Securely place barricades clearly

01 50 00 Page 5 visible with adequate illumination to provide sufficient visual warning of the hazard during both day and night.

Amendment 0004*************************************************************

2.3 FENCING

Provide fencing along the construction site and at all open excavations and tunnels to control access by unauthorized personnel. Safety fencing must be highly visible to be seen by pedestrians and vehicular traffic.

All fencing must meet the requirements of EM 385-1-1 . Remove the fence upon completion and acceptance of the work.

***************************************************************Amendment 0004

2.3.1 Polyethylene Mesh Safety Fencing

Temporary safety fencing must be a high visibility orange colored, high density polyethylene grid, a minimum of 48 inches high and maximum mesh size of 2 inches . Fencing must extend from the grade to a minimum of 48 inches above the grade and be tightly secured to T-posts spaced as necessary to maintain a rigid and taut fence. Fencing must remain rigid and taut with a minimum of 200 pounds of force exerted on it from any direction with less than 4 inches of deflection.

2.3.2 Chain Link Panel Fencing

Temporary panel fencing must be galvanized steel chain link panels 8 feet high. Multiple fencing panels may be linked together at the bases to form long spans as needed. Each panel base must be weighted down using sand bags or other suitable materials in order for the fencing to withstand anticipated winds while remaining upright. Fencing must remain rigid and taut with a minimum of 200 pounds of force exerted on it from any direction with less than 4 inches of deflection.

2.3.3 Post-Driven Chain Link Fencing

Temporary post-driven fencing must be galvanized chain link fencing 8 feet high supported by an tightly secured to galvanized steel posts driven below grade. Fence posts must be located on minimum 10 foot centers.

Posts may be set in various surfaces such as sand, soil, asphalt or concrete as necessary. Chain link fencing must remain rigid and taut with a minimum of 200 pounds of force exerted on it from any direction with less than 4 inches of deflection. Completely remove fencing and posts at the completion of construction and restore surfaces disturbed or damaged to its original condition. Locate and identify underground utilities prior to setting fence posts. Equip fence with a lockable gate. Gate must remain locked when construction personnel are not present.

2.4 TEMPORARY WIRING

Provide temporary wiring in accordance with EM 385-1-1 Section 11, NFPA 241 and NFPA 70 . Include monthly inspection and testing of all equipment and apparatus.

01 50 00 Page 6

PART 3 EXECUTION

3.1 EMPLOYEE PARKING

Construction Contract employees must park privately owned vehicles in an area designated by the Contracting Officer. Employee parking must not interfere with existing and established parking requirements of the Government installation.

3.2 AVAILABILITY AND USE OF UTILITY SERVICES

3.2.1 Temporary Utilities

Provide temporary utilities required for construction. Materials may be new or used, must be adequate for the required usage, not create unsafe conditions, and not violate applicable codes and standards.

3.2.2 Not Used

3.2.3 Not Used

3.2.4 Not Used

3.2.5 Not Used

3.2.6 Sanitation

Provide and maintain within the construction area minimum field-type sanitary facilities in accordance with EM 385-1-1 Section 02. Locate the facilities behind the construction fence or out of the public view. Clean units and empty wastes at least once a week or more frequently into a municipal, district, or station sanitary sewage system, or remove waste to a commercial facility. Obtain approval from the system owner prior to discharge into a municipal, district, or commercial sanitary sewer system. Penalties or fines associated with improper discharge will be the responsibility of the Contractor. Coordinate with the Contracting Officer and follow station regulations and procedures when discharging into the station sanitary sewer system. Maintain these conveniences at all times.

Include provisions for pest control and elimination of odors. Government toilet facilities will not be available to Contractor's personnel.

3.2.7 Telephone

Make arrangements and pay all costs for telephone facilities desired.

3.2.8 Fire Protection

Provide temporary fire protection equipment for the protection of personnel and property during construction. Remove debris and flammable materials daily to minimize potential hazards.

3.3 TRAFFIC PROVISIONS

3.3.1 Maintenance of Traffic

a. Conduct operations in a manner that will not close a thoroughfare or interfere with traffic on railways or highways except with written permission of the Contracting Officer at least 15 calendar days prior to the proposed modification date, and provide a Traffic Control Plan

01 50 00 Page 7 for Government approval detailing the proposed controls to traffic movement for approval. The plan must be in accordance with State and local regulations and the MUTCD, Part VI. Contractor may move oversized and slow-moving vehicles to the worksite provided requirements of the highway authority have been met.

b. Conduct work so as to minimize obstruction of traffic, and maintain traffic on at least half of the roadway width at all times. Obtain approval from the Contracting Officer prior to starting any activity that will obstruct traffic.

c. Provide, erect, and maintain, at Contractor's expense, lights, barriers, signals, passageways, detours, and other items, that may be required by the Life Safety Signage, overhead protection authority having jurisdiction.

d. Provide cones, signs, barricades, lights, or other traffic control devices and personnel required to control traffic. Do not use foil-backed material for temporary pavement marking because of its potential to conduct electricity during accidents involving downed power lines.

3.3.2 Protection of Traffic

Maintain and protect traffic on all affected roads during the construction period except as otherwise specifically directed by the Contracting Officer. Measures for the protection and diversion of traffic, including the provision of watchmen and flagmen, erection of barricades, placing of lights around and in front of equipment the work, and the erection and maintenance of adequate warning, danger, and direction signs, will be as required by the State and local authorities having jurisdiction. Provide self-illuminated (lighted) barricades during hours of darkness.

Brightly-colored (orange) vests are required for all personnel working in roadways. Protect the traveling public from damage to person and property. Minimize the interference with public traffic on roads selected for hauling material to and from the site. Investigate the adequacy of existing roads and their allowable load limit. Contractor is responsible for the repair of damage to roads caused by construction operations.

3.3.3 Rush Hour Restrictions

Do not interfere with the peak traffic flows preceding and during normal operations without notification to and approval by the Contracting Officer.

3.3.4 Dust Control

Dust control methods and procedures must be approved by the Contracting Officer. Coordinate dust control methods with 01 57 19.00 06 TEMPORARY

ENVIRONMENTAL CONTROLS.

3.4 CONTRACTOR'S TEMPORARY FACILITIES

Contractor-owned or -leased trailers must be identified by Government assigned numbers. Size and location of the number will comply with Grissom ARB requirements. Apply the number to the trailer within 14 calendar days of notification, or sooner, if directed by the Government.

Temporary facilities must meet requirements as identified in EM 385-1-1 Section 04.

01 50 00 Page 8

Contractor is responsible for security of their property. Provide adequate outside security lighting at the temporary facilities. Trailers must be anchored to resist high winds and meet applicable state or local standards for anchoring mobile trailers. Coordinate anchoring with EM 385-1-1 Section 04. The Contract Clause entitled "FAR 52.236-10, Operations and Storage Areas" and the following apply:

3.4.1 Administrative Field Offices

Provide and maintain administrative field office facilities within the construction area at the designated site. Government office and warehouse facilities will not be available to the Contractor's personnel.

In the event a new building is constructed for the temporary project field office, it must be a minimum 12 feet in width, 16 feet in length and have a minimum of 7 feet headroom. Equip the building with approved electrical wiring, at least one double convenience outlet and the required switches and fuses to provide 110-120 volt power. Provide a work table with stool, desk with chair, two additional chairs, and one legal size file cabinet that can be locked. The building must be waterproof, supplied with a heater, have a minimum of two doors, electric lights, a telephone, a battery-operated smoke detector alarm, a sufficient number of adjustable windows for adequate light and ventilation, and a supply of approved drinking water. Provide approved sanitary facilities. Screen the windows and doors and provide the doors with deadbolt type locking devices or a padlock and heavy-duty hasp bolted to the door. Door hinge pins must be non-removable. Arrange the windows to open and to be securely fastened from the inside. Protect glass panels in windows by bars or heavy mesh screens to prevent easy access. In warm weather, provide air conditioning capable of maintaining the office at 50 percent relative humidity and a room temperature 20 degrees F below the outside temperature when the outside temperature is 95 degrees F . Unless otherwise directed by the Contracting Officer, remove the building from the site upon completion and acceptance of the work.

3.4.2 Quality Control Manager Records and Field Office

Provide on the jobsite an office with approximately 100 square feet of useful floor area for the exclusive use of the QC Manager. Provide a weathertight structure with adequate heating and cooling, toilet facilities, lighting, ventilation, a 4 by 8 foot plan table, a standard size office desk and chair, computer station, and working communications facilities. Provide either a 1,500 watt radiant heater and a window-mounted air conditioner rated at 9,000 Btus minimum or a window-mounted heat pump of the same minimum heating and cooling ratings.

Provide a door with a cylinder lock and windows with locking hardware.

Make utility connections. Locate as directed. File quality control records in the office and make available at all times to the Government.

After completion of the work, remove the entire structure from the site.

3.4.3 Storage Area

Construct a temporary 8 foot high chain link fence around trailers and materials. Include plastic strip inserts, colored brown, so that visibility through the fence is obstructed. Fence posts may be driven, in lieu of concrete bases, where soil conditions permit. Do not place or store trailers, materials, or equipment outside the fenced area unless such trailers, materials, or equipment are assigned a separate and distinct storage area by the Contracting Officer away from the vicinity of

01 50 00 Page 9 the construction site but within the installation boundaries. Trailers, equipment, or materials must not be open to public view with the exception of those items which are in support of ongoing work on the current day.

Do not stockpile materials outside the fence in preparation for the next day's work. Park mobile equipment, such as tractors, wheeled lifting equipment, cranes, trucks, and like equipment within the fenced area at the end of each work day.

Keep fencing in a state of good repair and proper alignment. Grassed or unpaved areas, which are not established roadways, and will be traversed with construction equipment or other vehicles, must be covered with a layer of gravel as necessary to prevent rutting and the tracking of mud onto paved or established roadways, should the Contractor elect to traverse them with construction equipment or other vehicles. Mow and maintain grass located within the boundaries of the construction site for the duration of the project. Grass and vegetation along fences, buildings, under trailers, and in areas not accessible to mowers must be edged or trimmed neatly.

3.4.4 Supplemental Storage Area

Upon request, and pending availability, the Contracting Officer will designate another or supplemental area for the use and storage of trailers, equipment, and materials. This area may not be in close proximity of the construction site but will be within the installation boundaries. Maintain the area in a clean and orderly fashion and secured if needed to protect supplies and equipment. Utilities will not be provided to this area by the Government.

3.4.5 Appearance of Trailers

a. Trailers must be roadworthy and comply with all appropriate state and local vehicle requirements. Trailers which are rusted, have peeling paint or are otherwise in need of repair will not be allowed on Installation property. Trailers must present a clean and neat exterior appearance and be in a state of good repair.

b. Maintain the temporary facilities. Failure to do so will be sufficient reason to require their removal at the Contractor's expense.

3.4.6 Safety Systems

Protect the integrity of all installed safety systems or personnel safety devices. Obtain prior approval from the Contracting Officer if entrance into systems serving safety devices is required. If it is temporarily necessary to remove or disable personnel safety devices in order to accomplish Contract requirements, provide alternative means of protection prior to removing or disabling any permanently installed safety devices or equipment and obtain approval from the Contracting Officer.

3.4.7 Weather Protection of Temporary Facilities and Stored Materials

Take necessary precautions to ensure that roof openings and other critical openings in the building are monitored carefully. Take immediate actions required to seal off such openings when rain or other detrimental weather is imminent, and at the end of each workday. Ensure that the openings are completely sealed off to protect materials and equipment in the building from damage.

01 50 00 Page 10

3.4.7.1 Building and Site Storm Protection

When a warning of gale force winds is issued, take precautions to minimize danger to persons, and protect the work and nearby Government property.

Precautions must include, but are not limited to, closing openings;

removing loose materials, tools and equipment from exposed locations; and removing or securing scaffolding and other temporary work. Close openings in the work when storms of lesser intensity pose a threat to the work or any nearby Government property.

3.5 GOVERNMENT FIELD OFFICE

3.5.1 Resident Engineer's Office

Provide the Government Resident Engineer with an office, approximately 200 square feet in floor area, located where directed and providing space heat, air conditioning, electric light and power, and toilet facilities consisting of one lavatory and one water closet complete with connections to water and sewer mains. Provide a mail slot in the door or a lockable mail box mounted on the surface of the door. Include a 4 by 8 foot plan table, computer work space a standard size office desk and chair, and telephone. At completion of the project, the office will remain the property of the Contractor and be removed from the site. Utilities must be connected and disconnected in accordance with local codes and to the satisfaction of the Contracting Officer. Compliance with safety and appearance requirements for temporary facilities stated in previous paragraphs is required.

3.5.2 Trailer-Type Mobile Office

The option is available to, furnish and maintain a trailer-type mobile office acceptable to the Contracting Officer to meet the requirements of the minimum facilities specified above. Securely anchor the trailer to the ground at all four corners to guard against movement during high winds.

Coordinate requirements for proper anchoring with EM 385-1-1 Section 04 .

3.6 PLANT COMMUNICATIONS

Whenever the individual elements of the plant are located so that operation by normal voice between these elements is not satisfactory, install a satisfactory means of communication, such as telephone or other suitable devices and make available for use by Government personnel.

Amendment 0004***************************************************************

3.7 TEMPORARY PROJECT SAFETY FENCING

As soon as practicable, but not later than 15 days after the date established for commencement of work, furnish and erect any necessary temporary project safety fencing at the work site. Maintain the safety fencing during the life of the Contract and, upon completion and acceptance of the work, remove from the work site.

***************************************************************Amendment 0004

3.8 CLEANUP

Remove construction debris, waste materials, packaging material and the like from the work site daily. Any dirt or mud which is tracked onto

01 50 00 Page 11 paved or surfaced roadways must be cleaned away. Store all salvageable materials resulting from demolition activities within the fenced area described above or at the supplemental storage area. Neatly stack stored materials not in trailers, whether new or salvaged.

3.9 RESTORATION OF STORAGE AREA

Upon completion of the project remove the bulletin board, signs, barricades, haul roads, and all other temporary products from the site.

After removal of trailers, materials, and equipment from within the fenced area, remove the fence. Restore areas used during the performance of the Contract to the original or better condition. Remove gravel used to traverse grassed areas and restore the area to its original condition, including top soil and seeding as necessary.

-- End of Section --

01 50 00 Page 12

SECTION TABLE OF CONTENTS

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 32 11 13.13

LIME TREATED SUBGRADE

11/19

PART 1 GENERAL

1.1 SUMMARY

1.2 UNIT PRICES

1.2.1 Measurement for Payment

1.2.1.1 Lime Stabilization

1.2.1.2 Not Used

1.2.1.3 Not Used

1.2.2 Basis for Payment

1.2.3 Not Used

1.3 REFERENCES

1.4 DEFINITIONS

1.4.1 Lime-Stabilized Course

1.4.2 Degree of Compaction

1.5 SUBMITTALS

1.6 WEATHER LIMITATIONS

1.6.1 Freeze Protection Method(s)

1.7 DELIVERY AND STORAGE

1.8 QUALITY ASSURANCE

1.8.1 Required Data

PART 2 PRODUCTS

2.1 PLANT, EQUIPMENT, MACHINES, AND TOOLS

2.1.1 General Requisites

2.1.2 Steel-Wheeled Rollers

2.1.3 Pneumatic-Tired Rollers

2.1.4 Tamping-Type Roller

2.1.5 Mechanical Spreader

2.1.6 Pulvimixer

2.1.7 Slurry Mixer/Distributor

2.1.8 Central Mixing Plant

2.1.9 Sprinkling Equipment

2.1.10 Tampers

2.1.11 Straightedge

2.2 MATERIALS

2.2.1 Lime

2.2.2 Bituminous Material

2.2.2.1 Not Used

2.2.2.2 Emulsified Asphalt

2.2.2.3 Material to be Stabilized

2.2.2.4 Water

2.2.3 Stockpiling Materials

2.2.4 Mix Design

PART 3 EXECUTION

32 11 13.13 Page 1

3.1 LIME STABILIZATION MIXTURE

3.2 NOT USED

3.3 PREPARATION OF AREA TO BE STABILIZED

3.3.1 In-Place Material to be Stabilized

3.3.2 In-Place Material to Receive Stabilized Course

3.3.3 Grade Control

3.3.4 Soil Testing

3.4 INSTALLATION

3.4.1 Mixed In-Place Method

3.4.1.1 Application Requirements

3.4.1.2 Scarifying and Pulverizing of Soil

3.4.1.3 Application of Lime

3.4.1.4 Initial Mixing

3.4.1.5 Water Application and Moist Mixing

3.4.1.6 Not Used

3.4.1.7 Preliminary Curing

3.4.1.8 Confined Areas

3.4.2 Edges of Stabilized Course

3.4.3 Central-Plant Method

3.4.4 Traveling-Plant Method

3.4.5 Layer Thickness

3.4.6 Compaction

3.4.7 Finishing

3.4.8 Construction Joints

3.4.9 Final Curing

3.5 SAMPLING AND TESTING

3.5.1 General Requirements

3.5.2 Results

3.5.3 Sampling

3.5.4 Sieve Analysis

3.5.5 Liquid Limit and Plasticity Index

3.5.6 Chemical Analysis

3.5.7 Optimum Moisture, Maximum Density

3.5.8 Uniformity Tests

3.5.9 Compaction

3.5.10 Thickness and Smoothness

3.5.11 Field Application Rate Test

3.5.12 Frequency of Tests

3.6 FIELD QUALITY CONTROL

3.6.1 Treatment Depth Checks

3.6.2 Thickness Control

3.6.3 Field Density

3.6.4 Smoothness Test

3.7 TRAFFIC CONTROL, CURING MAINTENANCE, AND DRAINAGE PROTECTION

3.8 EQUIPMENT LIMITATIONS

3.8.1 General

3.8.2 Spreading Equipment

3.8.3 Additional Mixing Equipment Limitations

3.8.4 Additional Compaction Equipment Limitations

3.9 SAFETY REQUIREMENTS

3.10 MAINTENANCE

3.11 DISPOSAL OF UNSATISFACTORY MATERIALS

-- End of Section Table of Contents --

32 11 13.13 Page 2

SECTION 32 11 13.13

LIME TREATED SUBGRADE

11/19

PART 1 GENERAL

1.1 SUMMARY

The work specified consists of the construction of a lime-stabilized subgrade course. Perform the work conforming to the lines, grades, notes, and typical sections shown in the drawings. Select sources of materials well in advance of the time when materials are required in the work.

1.2 UNIT PRICES

1.2.1 Measurement for Payment

1.2.1.1 Lime Stabilization

Perform measurement by the square yd of work completed and accepted in areas requiring stabilization as indicated on the drawings. All other areas shall not be stabilized unless approved by the Contracting Officer.

1.2.1.2 Not Used

1.2.1.3 Not Used

1.2.2 Basis for Payment

Pay for the lime stabilization, constructed and accepted, in areas requiring stabilization as indicated on the drawings, including lime, and other materials, labor and equipment required to provide a product meeting the requirements at the respective Contract unit prices in the bidding schedule. Do not permit payment for material wasted, used for the convenience of the Contractor, unused or rejected, or for water used.

Payment shall include Professional Geotechnical Engineer's fees that are directly related to the requirements in this Section. All other areas shall not be stabilized unless approved by the Contracting Officer.

1.2.3 Not Used

1.3 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 ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO T 102 (2009; R 2013) Standard Method of Test for Spot Test of Asphaltic Materials

AASHTO T 135 (2013; R 2017) Standard Method of Test for Wetting-and-Drying Test of Compacted

32 11 13.13 Page 3

Soil-Cement Mixtures

AASHTO T 136 (2013; R 2017) Standard Method of Test for Freezing-and-Thawing Tests of Compacted Soil-Cement Mixtures

ASTM INTERNATIONAL (ASTM)

ASTM C25 (2017) Standard Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime

ASTM C50/C50M (2013) Sampling, Sample Preparation, Packaging, and Marking of Lime and Limestone Products

ASTM C136/C136M (2019) Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

ASTM C977 (2010) Quicklime and Hydrated Lime for Soil Stabilization

ASTM C1602/C1602M (2018) Standard Specification for Mixing Water Used in Production of Hydraulic Cement Concrete

ASTM D75/D75M (2019) Standard Practice for Sampling Aggregates

ASTM D977 (2019a; E 2019) Standard Specification for Emulsified Asphalt

ASTM D1556/D1556M (2015; E 2016) Standard Test Method for Density and Unit Weight of Soil in Place by Sand-Cone Method

ASTM D1557 (2012; E 2015) Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3) (2700 kN-m/m3)

ASTM D1632 (2007) Standard Practice for Making and Curing Soil-Cement Compression and Flexure Test Specimens in the Laboratory

ASTM D3551 (2008) Laboratory Preparation of Soil-Lime Mixtures Using a Mechanical Mixer

ASTM D3740 (2019) Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction

ASTM D4318 (2017; E 2018) Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils

ASTM D5102 (2009) Standard Test Method for Unconfined Compressive Strength of Compacted

32 11 13.13 Page 4

Soil-Lime Mixtures

ASTM D6938 (2017a) Standard Test Method for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)

ASTM E11 (2020) Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves

NATIONAL LIME ASSOCIATION (NLA)

NLA BUL 326 (2004) Lime-Treated Soil Construction Manual: Lime Stabilization and Lime Modification

1.4 DEFINITIONS

1.4.1 Lime-Stabilized Course

Lime-stabilized course is a mixture of lime and in-place or borrow material uniformly blended, wetted, and compacted to produce a pavement layer course that meets the criteria set forth in the plans.

1.4.2 Degree of Compaction

Degree of compaction required is expressed as a percentage of the maximum density obtained by the test procedure presented in ASTM D1557, abbreviated as percent laboratory maximum density.

1.5 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval. When used, a designation following the "G" designation identifies the office that reviews the submittal for the Government.

Submit the following in accordance with Section 01 33 00.00 06 SUBMITTAL

PROCEDURES:

SD-03 Product Data

Plant, Equipment, Machines, and Tools ; G

Submit a list of construction equipment 7 days prior to bringing equipment on the job.

Mix Design ; G

Contractor's Plans ; G

SD-04 Samples

Lime

Submit a typical cured sample of on-site material with the required percent of lime content. Refer to ASTM C50/C50M for sample size requirements.

SD-05 Design Data

32 11 13.13 Page 5

Job-Mix Formula ; G

SD-06 Test Reports

Sampling and Testing

Field Density

SD-07 Certificates

Bituminous Material

Lime

Laboratory

1.6 WEATHER LIMITATIONS

Do not construct subgrade when weather conditions detrimentally affect the quality of the materials. Do not apply lime unless the air temperature is at least 35 degrees F in the shade and rising. Protect the completed stabilized materials against freezing by a sufficient covering of straw, or by other approved methods, until the course has dried out. Bring areas of completed stabilized materials that are damaged by freezing, rainfall, or other weather conditions to a satisfactory condition without additional cost to the Government.

1.6.1 Freeze Protection Method(s)

Submit Contractor's plans for freeze protection for approval.

1.7 DELIVERY AND STORAGE

Deliver lime, in containers showing or including designated trade name, product identification, specification number, manufacturer's name, and source. Store in a manner that prevents moisture damage, overexposure, and contamination.

1.8 QUALITY ASSURANCE

1.8.1 Required Data

Ten days prior to the commencement of the work, submit a job-mix formula (JMF) showing the amount of lime and water required per cubic yd , and procedures for blending the lime/subgrade mixture for each type of existing soil or for blended soil, as applicable. Include process type and number of: lime applications, stages of mixing, slurry injection depths, mixing depths and depths of compaction lifts. Also, include a list of equipment to be used and their relation to method of mixing proportioning, spreading, pulverizing and compacting subgrade, slurry injection, jet slurry mixing and other related work. The formula contains the amount of lime, either in sacks or lbs per cubic yd and the amount of water to be used, if slurry method is used. Use ASTM D3551 laboratory test method.

32 11 13.13 Page 6

PART 2 PRODUCTS

2.1 PLANT, EQUIPMENT, MACHINES, AND TOOLS

Submit list of proposed equipment to be used in performance of construction work including descriptive data for Government approval.

2.1.1 General Requisites

Plant, equipment, machines, and tools used in the work are subject to approval and maintained in satisfactory working condition. Allow use of other compacting equipment in lieu of that specified, where it can be demonstrated that the results are equivalent. Provide protective equipment, apparel, and barriers to protect the eyes, respiratory system, and the skin of workers exposed to contact with lime dust or slurry.

2.1.2 Steel-Wheeled Rollers

Use self-propelled steel wheeled rollers. Use tandem or 3-wheel self-propelled non-vibratory steel-wheel rollers or steel-wheel trailer not weighing less than 5 tons . When drive rolls or trailer rolls produce a compressive force of not less than 200 lbs per linear in of contact area, allow a roller weighing less than 5 tons to be used. Equip wheels of the rollers with adjustable scrapers. The use of vibratory rollers is optional.

2.1.3 Pneumatic-Tired Rollers

Use pneumatic-tired rollers having 4 or more tires, inflated to a minimum pressure of 90 psi . Equally distribute the loading to the wheels, and uniformly inflate the tires. Also provide pneumatic-tired towing equipment.

2.1.4 Tamping-Type Roller

Use a tamping type roller, under working conditions, having a minimum weight of 90 lbs per linear in of length of drum and a minimum load on each sheeps-foot of 100 psi of cross sectional area of the sheeps-foot in contact with the ground. Do not allow the maximum area of the face of each sheeps-foot to be more than 12 square in . Do not allow the feet on the sheeps-foot roller to project less than 7 in from the face of the drum, and equip the roller with teeth-cleaning devices. Space the feet in adjacent rows so that the distance from center to center of adjacent parallel rows is not less than 6 in nor more than 11 in . Do not allow individual drums of the roller to exceed 5 ft in width. Use drums that oscillate independently. Operate the and tractor for pulling at a speed of approximately 3 to 6 mph .

2.1.5 Mechanical Spreader

Use a self-propelled mechanical spreader or attached to a propelling unit capable of moving the spreader and material truck. Use a steerable device having variable forward and reverse speeds. Carry the spreader and propelling unit on tracks, rubber tires, or drum-type steel rollers that do not disturb the underlying material. Provide a spreader that conforms to the following:

a. Containing a hopper, an adjustable screed, and outboard bumper rolls;

32 11 13.13 Page 7

b. Designed to have a uniform, steady flow of material from the hopper;

and

c. Capable of laying material without segregation, across the full width of the lane, to a uniform thickness and to a uniform loose density so that when compacted, the layer or layers conform to thickness and grade requirements indicated.

Provide a demonstration of the spreader prior to use in performance of the work.

2.1.6 Pulvimixer

Use self-propelled, four-wheel drive pulverizing and mixing equipment capable of pulverizing the soil in a single pass for the full depth to be stabilized. Use mixing action capable of uniformly blending and mixing the required lime content with the subgrade soil. Use a rotor capable of up or down cutting.

2.1.7 Slurry Mixer/Distributor

Mix the lime with water in trucks with approved distributors and applied as a thin water suspension or slurry. Apply commercial lime slurry with a lime percentage not less than that applicable for the grade used. Attain the distribution of lime by successive passes over a measured section of subgrade until the proper amount of lime has been spread. Use the amount of lime spread required for mixing to the specified depth that results in the percentage determined in the JMF. Use a distributor truck that continually agitates the slurry to keep the mixture uniform.

2.1.8 Central Mixing Plant

Use a lime-slurry central mixing plant consisting of a lime storage silo, water supply tank, lime and water metering devices, and a lime-water mixer. Provide storage tanks for lime-water slurry with mechanical agitation to maintain the lime-water slurry in suspension.

2.1.9 Sprinkling Equipment

Provide sprinkling equipment consisting of tank trucks, pressure distributors, or other approved equipment designed to apply controlled quantities of water uniformly over variable widths of surface.

2.1.10 Tampers

Provide tampers of an approved mechanical type, having sufficient weight and striking power to produce the compaction required.

2.1.11 Straightedge

Provide and maintain at the site one 12 ft straightedge for use in the testing of the finished surface. Make available a straightedge for Government use. Use straightedges 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. Use straightedges with handles to facilitate movement on pavement.

32 11 13.13 Page 8

2.2 MATERIALS

2.2.1 Lime

Submit copies of certified test data. Use a standard brand of quicklime or hydrated lime conforming to ASTM C977 and the following physical and chemical requirements. Sample lime in accordance with ASTM C50/C50M.

a. Gradation that 97 percent passes a No. 30 sieve and a minimum of 75 percent passes a No. 200 sieve.

b. Combined calcium oxide and magnesium oxide not less than 90 percent.

c. Quicklime or Hydrated Lime does not exceed 5 percent Carbon Dioxide or 2 percent free moisture (taken at the point of manufacture).

The percent of hydrated lime or quicklime shall be determined by the Contractor's Geotechnical Engineer.

2.2.2 Bituminous Material

Submit copies of certified test data. Material conforming to one of the following:

2.2.2.1 Not Used

2.2.2.2 Emulsified Asphalt

Conform to ASTM D977, Type SS-1h. Use a base asphalt to manufacture the emulsion that shows a negative spot when tested in accordance with AASHTO T 102 using standard naphtha.

2.2.2.3 Material to be Stabilized

Use material to be stabilized consisting of in situ, borrow, or compacted fill material if preliminary earthwork is required: See Section 31 00 00.00 06 EARTHWORK. Provide material free of deleterious substances such as sticks, debris, organic matter, and stones greater than 3 in in any dimension. Confirm at least 10 percent of the material passes the No.

40 sieve. Confirm the plasticity index is greater than 18.

2.2.2.4 Water

Use water clean, fresh, and free from injurious amounts of oil, acid, salt, alkali, organic matter, and other substances deleterious to the lime or soil-lime mixture and subject to approval. Test water for conformance to the requirements of ASTM C1602/C1602M including the optional requirements of Table 2. Allow potable water sources to be used without testing.

2.2.3 Stockpiling Materials

Stockpile borrow material, including approved material available from excavation and grading, in the manner and at the locations designated.

Before stockpiling material, clear storage sites and slope to drain.

Separately stockpile materials obtained from different sources.

32 11 13.13 Page 9

Amendment 0004*********************************************************

2.2.4 Mix Design

Submit certification of testing laboratory compliance. Develop and submit for approval a proposed mix design for each material type to be stabilized prior to mobilization of construction. Develop and submit for approval a proposed mix design for each material type to be stabilized prior to mobilization of construction equipment. No construction equipment, with the exception of equipment associated with the performance geotechnical explorations related to the mix design, can be mobilized until the design is accepted. It is understood that geotechnical exploration will be required to perform the mix design, and that exploration should be coordinated with the base through USACE construction representative.

Develop mix designs by an approved commercial laboratory which meets the requirements of ASTM D3740 and which has been approved by the Corps of Engineers Materials Testing Center. Develop the mix design using representative samples of each soil to be stabilized and using the proposed project lime. Conduct three trials for each mix design tested.

Prepare samples in accordance with ASTM D3551. Allow the prepared samples to mellow for 48 hours for stabilized materials before testing is performed. For soil stabilization, vary the lime content to produce a maximum plasticity index of 10 when tested in accordance with ASTM D4318.

Provide the results in a graph of plasticity index versus lime content.

Determine the maximum dry density and optimum moisture content for the proposed lime-soil mixture in accordance with ASTM D1557. Cure samples at a constant moisture content and temperature for 7 days. Provide a soil stabilization mix design capable of producing an unconfined compressive strength of 150 psi at 7-days age (average of three specimens) when compacted to the design percent of laboratory maximum density and tested in accordance with ASTM D5102, Method A. Prepare three specimens per test evaluation for durability testing for each mix design tested. Do not allow samples to exceed loss indicated in Table 2 after 12 cycles of the wet-dry test in accordance with AASHTO T 135 . Conduct freeze thaw tests in accordance with AASHTO T 136 (but omitting wire brushing) for projects susceptible to freeze/thaw conditions. Provide the mix design submittal information including the following:

a. Material type

b. Material classification including plasticity test data

c. Laboratory maximum density

d. Percent of lime and rate of application

e. Optimum water content during mixing, curing, and compaction

f. Gradation of material before and after treatment

g. Compressive strength

h. Durability Wet-Dry and Freeze/Thawtest data

i. Mixing or equipment requirements

j. Mellowing time requirements

k. Water quality test data, if non-potable source used

32 11 13.13 Page 10

Table 2

Type of Soil Stabilized

Maximum Allowable Weight Loss After 12 Wet-Dry or Freeze-Thaw Cycles, as a Percent of Initial Specimen Weight

Silt 8

Clays 6

**************************************************************Amendment 0004

PART 3 EXECUTION

3.1 LIME STABILIZATION MIXTURE

Only areas as indicated on the drawings shall be stabilized. All other areas shall not be stabilized unless approved by the Contracting Officer.

Pulverize the subgrade material to be stabilized. After mixing, control field moisture content within plus 2 or minus 1 percent of optimum. When the stabilized course is constructed in more than one layer, clean the previously constructed layer of loose and foreign matter by sweeping with power sweepers or power brooms. Allow hand brooms to be used in areas where power cleaning is not practicable. Provide adequate drainage during the entire construction period to prevent water from collecting or standing on the area to be stabilized or on pulverized, mixed, or partially mixed material. Provide line and grade stakes for control. Place grade stakes in lines parallel to the centerline of the area under construction and suitably spaced for string lining.

3.2 NOT USED

3.3 PREPARATION OF AREA TO BE STABILIZED

Clean the area of debris, roots, thrash, organic and other deleterious materials. Remove rocks larger than 3 in . Inspect original ground for adequacy for the forthcoming compactive effort of lime treatment work.

Inspect the area for adequate compaction and that it is capable of withstanding, without displacement, the compaction specified for the soil-lime mixture. Dispose of debris and removed unsatisfactory in-place material as specified. Comply with subgrade requirements of Section

31 00 00.00 06 EARTHWORK.

3.3.1 In-Place Material to be Stabilized

Grade the entire area to conform to the lines, grades, and cross sections shown in the drawings prior to being processed. Make soft or yielding subgrade areas stable before construction is begun. Remove and replace unsatisfactory material as directed by the Government.

32 11 13.13 Page 11

3.3.2 In-Place Material to Receive Stabilized Course

Use subgrade conforming to Section 31 00 00.00 06 EARTHWORK.

3.3.3 Grade Control

Excavate underlying material to sufficient depth for the required stabilized-course thickness so that the finished stabilized course with the subsequent surface course meets the fixed grade. When stabilized course is to be constructed to meet a fixed grade, provide adequate line and grade stakes for control. Locate grade stakes in lanes parallel to center line of areas under construction, and suitably placed for string lining. Maintain line and grade. Confirm finished and completed stabilized area conform to the lines, grades, cross section, and dimensions indicated.

3.3.4 Soil Testing

Test original ground prior to scarification in accordance with ASTM D1557.

3.4 INSTALLATION

3.4.1 Mixed In-Place Method

3.4.1.1 Application Requirements

Comply with NLA BUL 326 and sequence of construction operations, unless specified otherwise.

After site preparation, scarify subgrade and spread lime. Blend lime into subgrade to required depth as indicated. Apply lime and water only to those areas where mixing operations can be completed during the same working day.