J-1_Supplemental_Specifications.pdf

Table of Contents

Table of Contents

Preface

101 - Terms, Format, and Definitions

101.01 Meaning of Terms

101.03 Abbreviations

101.04 Definitions

102 - Bid, Award, and Execution of Contract

102 Bid, Award, and Execution of Contract

103 - Scope of Work

Deletions

104 - Control of Work

Deletions

104.06 Use of Roads by Contractor

105 - Control of Material

105.02 Material Sources

105.02(a) Government-provided sources

105.05 Use of Material Found in the Work

106 - Acceptance of Work

106.07 Delete

107 - Legal Relations and Responsibility to the Public

107.05 Responsibility for Damage Claims

107.06 Contractor’s Responsibility for Work

107.09 Legal Relationship of the Parties

107.10 Environmental Protection

108 - Prosecution and Progress

108 Delete

109 - Measurement and Payment

109 Deletions

109.02 Measurement Terms and Definitions

151 - Mobilization

155 - Schedules for Construction Contracts

155 Delete

414 - Asphalt Pavement Crack and Joint Sealing

414.02 Material

414.05 Crack Cleaning and Sealing

414.05 Asphalt Pavement Crack Sealing and Filling

430 - Asphalt Pavement Patching

718 - Traffic Signing and Marking Material

718.05 Aluminum Panels

Preface Preface_wo_03_15_2004_m

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-03 for construction of

National Forest System Roads.

101 - Terms, Format, and Definitions 101.00_nat_us_07_25_2005

101.01_nat_us_01_22_2009

101.01 Meaning of Terms

Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.

101.03_nat_us_06_16_2006

101.03 Abbreviations.

Add the following to (a) Acronyms:

AFPA

MSHA

NIST

NESC

WCLIB

American Forest and Paper Association

Mine Safety and Health Administration

National Institute of Standards and Technology

National Electrical Safety Code

West Coast Lumber Inspection Bureau

Add the following to (b) SI symbols:

mp Milepost ppm Part Per Million

101.04_nat_us_03_29_2007

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

Bridge--No definition.

Contractor--The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “purchaser”.

Culvert--No definition.

Right-of-Way--A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

http://www.nist.gov/

Add the following:

Adjustment in Contract Price--“Equitable adjustment,” as used in the Federal Acquisition

Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change--“Change” means “change order” as used in the Federal Acquisition Regulations, or

“design change” as used in the Timber Sale Contract.

Design Quantity--“Design quantity” is a Forest Service method of measurement from the FS-96

Forest Service Specifications for the Construction of Roads and Bridges. Under these FP specifications this term is replaced by the term “Contract Quantities”.

Forest Service--The United States of America, acting through the Forest Service, U.S.

Department of Agriculture.

Neat Line--A line defining the proposed or specified limits of an excavation or structure.

Pioneer Road--Temporary construction access built along the route of the project.

Purchaser--The individual, partnership, joint venture, or corporation contracting with the

Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse--A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order--An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.

Schedule of Items--A schedule in the contract that contains a listing and description of construction items, quantities, units of measure, unit price, and amount.

Utilization Standards--The minimum size and percent soundness of trees described in the specifications to determine merchantable timber.

Add Figure 101-1—Illustration of road structure terms:

Figure 101-1—Illustration of road structure terms.

102 - Bid, Award, and Execution of Contract 102.00_nat_us_02_16_2005

102 Bid, Award, and Execution of Contract

Delete Section 102 in its entirety.

103 - Scope of Work

103.00_nat_us_02_16_2005

Deletions

Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work

104.00_nat_us_06_16_2006

Deletions

Delete Sections 104.01, 104.02, and 104.04.

104.06_nat_us_02_17_2005

Add the following subsection:

104.06 Use of Roads by Contractor

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

105 - Control of Material

105.02_nat_us_01_18_2007

105.02 Material Sources.

105.02(a) Government-provided sources.

Comply with the requirements of 30 CFR 56, subparts B and H. Use all suitable material for aggregate regardless of size unless otherwise designated. When required, re-establish vegetation in disturbed areas according to section 625.

105.05_nat_us_05_12_2004

105.05 Use of Material Found in the Work.

Delete 105.05 (a) and (b) and the last sentence of the second paragraph and substitute the following:

Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. The Government is not obligated to make reimbursement for the cost of producing these materials.

106 - Acceptance of Work

106.07_nat_us_05_11_2004

106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility to the Public

107.05_nat_us_05_11_2004

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.06_nat_us_06_16_2006

107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“except as provided in Subsection 106.07”.

107.09_nat_us_06_16_2006

107.09 Legal Relationship of the Parties.

Delete the entire subsection.

107.10_nat_us_06_16_2006

107.10 Environmental Protection.

Add the following:

Design and locate equipment repair shops, stationary refueling sites, or other facilities to minimize the potential and impacts of hazardous material spills on Government land.

Before beginning any work, submit a Hazardous Spill Plan. List actions to be taken in the event of a spill. Incorporate preventive measures to be taken, such as the location of mobile refueling facilities, storage and handling of hazardous materials, and similar information. Immediately notify the CO of all hazardous material spills. Provide a written narrative report form no later than 24 hours after the initial report and include the following:

Description of the item spilled (including identity, quantity, manifest number, and other identifying information).

Whether amount spilled is EPA or state reportable, and if so whether it was reported, and to whom.

Exact time and location of spill including a description of the area involved.

Containment procedures.

Summary of any communications the Contractor had with news media, Federal, state and local regulatory agencies and officials, or Forest Service officials.

Description of clean-up procedures employed or to be employed at the site including final disposition and disposal location of spill residue.

When available provide copies of all spill related clean up and closure documentation and correspondence from regulatory agencies.

The Contractor is solely responsible for all spills or leaks that occur during the performance of this contract. Clean up spills or leaks to the satisfaction of the CO and in a manner that complies with Federal, state, and local laws and regulations.

108 - Prosecution and Progress

108.00_nat_us_02_16_2005

108 Delete.

Delete Section 108 in its entirety.

109 - Measurement and Payment

109.00_nat_us_02_17_2005

109 Deletions

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

109.02_nat_us_06_16_2006

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

Change the following:

“(b) Cubic yard” to “(c) Cubic yard”.

Add the following definition:

(p) Thousand Board Feet (Mbf). 1,000 board feet based on nominal widths, thickness, and extreme usable length of each piece of lumber or timber actually incorporated in the job. For glued laminated timber, 1,000 board feet based on actual width, thickness, and length of each piece actually incorporated in the job.

151 - Mobilization

151.00_01_us_10_11_2006

Delete Section 151 in its entirety and replace with the following.

Description

151.01 This work consists of moving personnel, equipment, material, and incidentals to the project and performing all work necessary before beginning work at the project site; obtaining of permits, insurance, and bonds. This work also includes washing and treating construction equipment and vehicles necessary for equipment transport to remove seeds, plants, and plant fragments before the equipment is used on Forest Service lands, according to the requirements within.

Construction Requirements

Wash the sides, tops, and undercarriages of all construction equipment. Remove all seeds, plants, plant fragments, dirt, and debris from the construction equipment. Only equipment inspected by the Forest Service will be allowed to operate within the project area. All subsequent move-ins of equipment to the project area will be treated in the same manner as the initial move-in. This requirement does not apply to cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas off the National Forest.

Equipment will be considered free of soil, seed, and other such debris when a visual inspection does not disclose such material. Disassembly of equipment, components or the need for specialized inspection tools is not required.

Notify the CO in writing at least 72 hours before moving any construction equipment onto the national forest. Notification will include an agreed upon location where the equipment will be available for inspection by the Forest Service. Inspection will be required after every cleaning.

Use methods of cleaning and locations for cleaning approved by the CO.

For work at a commercial washing facility, use an approved facility.

New infestations of noxious weeds of concern to Forest Service and identified by either Contractor or Forest Service, in the Project Area or on the haul route, will be promptly reported to the other party. Contractor and Forest Service will agree on treatment methods to reduce or stop the spread of noxious weeds when new infestations are found. A current list of noxious weeds of concern to Forest Service is available at each Forest Service office.

Measurement

151.02 Clean equipment prior to moving onto this project. The initial cleaning will not be included in the measurement for payment. Payment for cleaning will only be made if subsequent cleanings are ordered by the CO. Measurement shall be on an “each” basis, meaning one complete cleaning of all equipment required for this contract. Subsequent cleanings necessitated by the Contractor’s actions but not directed by the CO will not be included in the measurement for payment.

Measure mobilization according to Subsection 109.02.

Payment

151.03 The accepted quantity, measured as provided in Subsection 109.02, will be paid at the contract price per unit of measurement for the Section 151 pay item shown in the bid schedule.

Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

Progress payments for mobilization lump sum will be paid as follows:

(a) If applicable, bond premiums will be reimbursed according to FAR Clause 52.232-5

Payments Under Fixed-Price Construction Contracts, after receipt of the evidence of payment.

(b) When 5 percent of the original contract amount is earned from other bid items, 50 percent of the mobilization item, or 5 percent of the original contract amount, whichever is less, will be paid.

(c) When 10 percent of the original contract amount is earned from other bid items, 100 percent of the mobilization item, or 10 percent of the original contract amount, whichever is less, will be paid.

(d) Any portion of the mobilization item in excess of 10 percent of the original contract amount will be paid after final acceptance.

Include all costs associated with the initial cleaning of equipment in the unit bid price for Mobilization. Cleaning for subsequent move-ins will not be paid for unless after a suspension ordered by the CO.

155 - Schedules for Construction Contracts

155.00_nat_us_05_11_2004

155 Delete.

Delete Section 155 in its entirety.

414 - Asphalt Pavement Crack and Joint Sealing

414.02_nat_us_05_12_2004

414.02 Material.

Add the following:

Backer Rod 712.01(g)

Low-modulus rubberized asphalt 712.01 (a) (7)

414.05_nat_us_05_12_2004

414.05 Crack Cleaning and Sealing.

Delete and replace with:

414.05 Asphalt Pavement Crack Sealing and Filling.

Crack seal and fill only when internal pavement temperatures are between 36 and 68 °F the road surface is dry, there is no frost in the road section, and the weather is not foggy or rainy.

Heat, mix, and apply the crack sealing and filling materials as recommended by the sealant manufacturer. Submit a copy of the manufacture’s recommendations to the CO prior to the start of work.

Prepare cracks between 1/4 inch and 1 inch and apply sealant by one of the following methods:

Crack Sealing - Rout and clean all cracks between 1/4 inch and 1 inch wide. Rout cracks to produce a reservoir with straight ½ inch vertical walls and a 1 1/2 inch wide flat bottom. Use a low-modulus rubberized asphalt. Completely fill the routed cross section flush with the pavement surface.

Crack Filling - Clean the crack between 1/4 inch and 1 inch wide. Prepare cracks to a depth of at least three times the crack width. Ensure crack sealing materials penetrates more than twice the crack width.

For cracks between 1/2 inch and 1 inch where sealant penetrates more than two times the crack width, use a backer rod.

For cracks with a width greater than or equal to 1 inch, clean and fill flush to the existing surface with asphalt mix according to Section 401, 402, 403, 404, or 417.

For cracks less than ¼ inch wide, clean and fill with CSS-1, SS-1, or joint sealant. Apply a sealant band less than 2 inches over the crack, such that the crack is centered under the band.

Submit a copy of, and adhere to, the manufacture’s recommendations for heating and applying the joint sealant.

Clean cracks with a stream of air to remove all dirt, dust, or deleterious matter adhering to the crack walls or remaining in the crack cavity so that the crack is clean and dry when the sealant is applied. Blow or brush dry material off the pavement surface. Avoid damage to the adjacent pavement.

Use approved methods to protect all seal materials from being picked up by traffic. Treat seal material tracked onto the road surface as directed by the CO.

430 - Asphalt Pavement Patching

430.00_nat_us_07_27_2007

Description

430.01 This work consists of performing full depth patching, patching with geotextiles, skin patching, spray-injection patching, and removal and replacement of asphalt berms.

Material

430.02 Conform to the following Subsections:

Minor Hot Asphalt Pavement 404.02

Asphalt Binder 702.01

Cutback Asphalt 702.02

Emulsified Asphalt 703.03

Application Temperatures 702.04

Cold Asphalt Mix 702.10

Aggregate 703.07 (a) and (b)

Choker Aggregate 703.12

Geotextile Type VI 714.01

Sand 703.15

Construction

430.03 Composition of Mix (Job-Mix Formula). Furnish either Minor Hot Asphalt Pavement or Minor Cold Asphalt Mix as approved by the CO.

430.04 Full Depth Patch.

Remove material to a minimum depth of 4 inches, or as necessary to reach firm support. If firm support for a patch is unavailable, notify the CO prior to placing any material.

Trim or mill the edges of the prepared hole to form a vertical face in un-fractured asphalt surfacing. Make the prepared hole rectangular, and clean it of all loose material. When the hole is dry, apply emulsified asphalt to the bottom and faces of the hole. Barricade prepared sites.

Patch the sites immediately after the emulsified asphalt breaks. Place the asphalt concrete mixture in layers not exceeding 4 inches. Thoroughly compact each layer with hand or mechanical tampers or rollers. For hot asphalt concrete mixtures, compact the mix while it is above 230 °F.

Compact the finished surface with a steel-wheel roller or vibratory plate compactor. Ensure that the compacted patch is approximately 1/8 to 1/4 inches above the level of the adjacent pavement.

Seal the edges of the completed patch with emulsified asphalt, and blot with fine sand.

430.05 Patching with Geotextile. Prepare the surface by digging out and patching according to

Subsection 430.04 or by cleaning the surface, removing vegetation, and filling all cracks more than 1/4 inch wide with an approved crack-filling material. Remove excess crack-filling material.

Spray the prepared surface with asphalt cement or emulsified asphalt according to the geotextile manufacturer’s direction. Immediately place the geotextile over the repaired area. Allow emulsified asphalt to break before placing geotextile. Extend the fabric a minimum of 6 inches beyond the repaired or patched area onto sound adjoining pavement. Use a minimum of 2 inches overlap where adjacent fabric panels are needed to cover the repaired area.

Do not place the asphalt concrete mixture until authorized by the CO. Uniformly distribute asphalt concrete mixture in layers not to exceed 2 inches compacted depth. Feather the edges of skin patches. When placing more than one layers, offset all joints at least 6 inches between layers. Compact each layer with an 8 to 10 ton steel roller. For hot asphalt concrete mixtures, compact the mix while it is above 230°F. Ensure that the completed patch does not have abrupt transitions that could adversely affect the steering of a passenger car traveling across the area.

Provide transition tapers for skin patches that are 12 inches long per 1/8 inch thickness of patch in the direction on travel.

430.06 Skin Patches. Prepare the surface on which the skin patch is placed by cleaning the surface, removing vegetation, and filling all cracks more than 1/4 inch wide with an approved crack-filling material. Remove excess crack-filling material. Spray the surface with emulsified asphalt at the rate approved by the CO.

Apply the asphalt concrete mixture according to Subsection 430.05.

430.07 Spray-Injection Patching. Use an approved continuous process that cleans and dries the area to be patched, sprays a tack coat of binder on the sides and bottom of the pothole, place aggregate coated with emulsified asphalt, and covers the area with a choker aggregate.

430.08 Asphalt Berm. Remove damaged segments of berm and bevel exposed ends at approximately 45 degrees from vertical. Clean and patch the berm foundation as necessary. Coat the foundation and joining surfaces with emulsified asphalt. Place and compact asphalt mix to conform to the shape of the undamaged segment.

430.09 Waste Material. Dispose of all materials removed from potholes, patches, and berms in accordance with Subsection 203.05(a).

430.10 Acceptance. Asphalt concrete mixtures will be evaluated under Subsections 106.02 and

106.03. Geotextiles will be evaluated under Subsection 106.03. Spray-injection patching will be evaluated under Subsections 106.02 and 106.03.

Measurement

430.11 Measure the Section 430 items listed in the bid schedule according to Subsection 109.02.

Payment

430.12 The accepted quantities will be paid at the contract unit price per unit of measurement for Section 430 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05

703 - Aggregate

703.10_nat_us_03_02_2005

Delete Table 703-7 and substitute the following:

Table 703-7 Target Value Ranges

Table 703-7

Target Value Ranges for

Single and Multiple Course Surface Treatment Aggregate Gradation

Sieve

Percent by Mass Passing Designated Sieve

(AASHTO T 27 & T 11)

Size

Grading Designation

A B C D E F

1½ inch 100 (1)

1 inch 90-100(3) 100

¾ inch 0-35(5) 90-100(3) 100

½ inch 0-8(3) 0-35(5) 90-100(3) 100

⅜ inch — 0-12(3) 0-35(5) 85-100(3) 100

No. 4 — — 0-12(3) 0-35(5) 85-100(3) 85-100

No. 8 — — — 0-8(3) 0-23(4) —

No. 200 0-1(1) 0-1(1) 0-1(1) 0-1(1) 0-1(1) 0-10

(1) Statistical procedures do not apply.

( ) The value in the parentheses is the allowable deviation ( ) from the target values.

703.20_01_us_10_12_2006

Replace Table 703-3 with the following:

Table 703-3. Gradation TV ranges for surface courses.

% by Mass Passing Designated Sieve (AASHTO T 27 and T 11)

Grading Designation

Sieve Size F G H S T U

1 ½ in. 100 100

1 in. 97-100 100 72-92 (6) 100

¾ in. 76-89 (6) 97-100 97-100 - - 100

½ in. - - - - 71-91 (6) -

3/8 in. 56-68 (6) 70-80 (6) 80-92 (6) 51-71 (6) - 71-90 (6)

No. 4 43-53 (7) 51-63 (7) 58-70 (7) 36-53 (7) 43-60 (7) 50-68 (7)

No. 8 - - - 26-40 (6) 30-46 (6) 34-51 (6)

No. 16 23-32 (6) 28-39 (6) 28-40 (6) - - -

No. 30 15-23 (5) 19-27 (5) 16-26 (5) - - -

No. 40 - - - 14-25 (5) 16-28 (5) 19-30 (5)

No. 200 10-16 (4) 10-16 (4) 9 14 (4) 8-15 (4) 8-15 (4) 8-15 (4)

Note: Allowable deviations (±) from TV are shown in parentheses. If the plasticity index (PI) is greater than 0, the TV range for the No. 200 sieve size is 6-12 (4).

Table 703-3. Gradation ranges for Size Ratio surface courses.

% by Mass Passing Designated Sieve (AASHTO T 27 and T 11)

Grading Designation

Sieve Grading Grading Grading Grading Size F-SR F-SR with

Bentonite G-SR G-SR with

Bentonite

1 ½ in. 100 100

1 in. 97-100 97-100 100 100 ¾ in. 70 - 98 70 - 98 97-100 97-100 ½ in. 58 - 88 58 - 88 70 - 98 70 - 98 No. 4 36 - 60 36 - 60 44 - 70 44 - 70 No. 16 25 - 47 25 - 47 30-54 30-54 No. 30 12 - 31 12 - 31 15 - 34 15 - 34 No. 200 8 –20 (a) 6 - 15 8 – 20 (a) 6 - 15

Note: SR and PI are abbreviations for Size Ratio and Plasticity Index.

(a) If the minus No. 40 material in finished product has a PI greater than 0, the percent pass No. 200 range is 6 to 15%.

The gradation shall closely parallel the specification gradation curves. Percent passing ½ inch, No. 4, and No. 30 sieves shall all be in either the upper, middle, or lower portion of the specification band. Size ratios, as defined below, shall be determined for each sieve analysis test. The maximum difference between the ½ inch and No. 4 size ratio, the No 4 and No. 30 size ratio, and the ½ inch and No. 30 size ratio, shall not exceed 0.50.

½ inch size ratio = (Test % Pass ½ inch) - (Min % Pass 1/2 inch)

(Max % Pass 1/2 inch) - (Min % Pass 1/2 inch)

No.4 size ratio = (Test % Pass No.4) - (Min % Pass No.4)

(Max % Pass No.4) - (Min % Pass No.4)

No.30 size ratio = (Test % Pass No.30) - (Min % Pass No.30)

(Max % Pass No.30) - (Min % Pass No.30)

Add Table 703-16:

Table 703-16

Gradation Requirements for Screened Aggregate

Sieve Size

Percent by Mass Passing Designated Sieve (AASHTO T 27 and T 11)

Grading Designation

L M N O P Q R

6 inch 100 100

4 inch 100 100

3 inch 100 100

2 inch 100

No. 4 15-45 15-45 15-45

712 - Joint Material

712.01_nat_us_03_02_2005

712.01 Sealants, Fillers, Seals, and Sleeves.

(a) Joint sealants and crack fillers.

Add the following:

(7) Low-Modulus Rubberized Asphalt. Conform to ASTM D 3405 and the following.

Cone Penetration, 75 o F 100-150

Cone Penetration, -0 o F 25 minimum

Flow, 140 o F, 5h 3/8 in. maximum

Resilience 30-60%

Bond, -20 o F, 200% extension Pass 3 Cycles

Recommended Pour Temperature 380 o F

Safe Heating Temperature 410 o F

Asphalt Compatibility Pass

712.01_05_us_08_13_2009

Section 712. - JOINT MATERIAL.

712.01 Sealants, Fillers, Seals and Sleeves.

(a) Joint Sealants and crack fillers.

Delete lines (1) and (2) and substitute the following:

(1) Concrete joint sealer, AASHTO M 324 hot-poured elastic type

(2) Joint sealants, hot poured, AASHTO M 324 for rigid and asphalt pavement

(5) Multi-component join sealant, conforming to TT-S-00227E, type 1, class A or

ASTM C 920, type M, grad P, class 25, use T. Provide sealant matching the color of the adjacent sidewalk. Conform to the sealant manufacturer's recommendations for use of primers.

(6) Flexible cellular joint filler ASTM D 1056, type 2, grade 4 or 5

(c) Preformed joint seals and sleeves. Delete the text and Table 712-1 and substitute the following:

(1) Paving applications. Conform to AASHTO M 220. Use a lubricant conforming to

ASTM D 2835, which was manufactured within 9 months of use.

(2) Circular concrete sewer and culvert pipes using rubber gaskets. Furnish oil resistant gaskets conforming to AASHTO M 315 and the following:

(a) Minimum thickness: Recommendation of drainage element manufacturer

(b) Tear resistance, lbf/in, ASTM D624 (die B):

(1) Ethylene propylene di monomer (EPDM) 230 lbf/in min.

(2) Neoprene 115 lbf/in min.

(3) Resilient connectors between reinforced concrete manhole structures and pipes.

Conform to ASTM C 923.

(4) Preformed flexible joint sealants for concrete pipe, manholes, and precast box sections. Conform to ASTM C 990.

(e) Cold-poured sealer. Delete the title and text and substitute the following:

(e) Silicone joint sealant. Conform to ASTM D 5893 type NS.

(f) Low-modulus silicone joint sealant. Delete the text and substitute the following:

Conform to ASTM D 5893 type SL.

(g) Backer rod. Delete the text and substitute the following:

Conform to ASTM D 5249 type 1. Use a compatible sealant as recommended by the rod manufacturer. For size of backer rod, conform to Table 712-2.

712.03 Watertight Gaskets. Delete the text and substitute the following:

For ring gaskets for rigid pipe, conform to AASHTO M 198. For ring gaskets for flexible metal pipe, conform to ASTM C 361. For continuous flat gaskets for flexible metal pipe with flat bands or bands with projects, conform to ASTM D 1056 grade 2C1 and use a gasket with a thickness ½ inch greater than the nominal depth of the pipe corrugations. For continuous flat gaskets for flexible metal pipe with corrugated bands, conform to ASTM D 1056 grade 2C3 and use a ⅜ inch thick gasket.

712.05 Mortar for Masonry Beds and Joints. Delete the text and substitute the following:

(a) Type I mortar. Furnish and proportion masonry mortar according to ASTM C 270 proportion specifications. Mortar may be preblended or mixed on site. Use only masonry cement mortar type M or S.

(b) Type II mortar. Furnish mortar and material for use in mortar conforming to the following:

(1) Cement

(a) Portland Cement Subsection 701.01(a), type I, IA, II, IIA, III or IIIA

(b) Blended hydraulic cement Subsection 701.01(b), type IS, IS-A, IP, IP-A, I(PM) or I(PM)-A

(c) Masonry cement Subsection 701.02

(2) Fine aggregate Subsection 703.01 or

AASHTO M 45

(3) Lime ASTM C 207, type S or SA.

Type N or NA, if tests show it not to be detrimental to mortar soundness.

(4) Water Subsection 725.01

(5) Air entraining admixture Subsection 711.02

(6) Composition. Conform to the proportions for one of the mixes in Table 712-3.

Uniformly mix with water to a spreading consistency.

(7) Compressive strength. AASHTO T 106 2000 psi, 28-day min.

Table 712-3

Mortar Proportions by Volume

Mortar Portland

Cement

Hydraulic

Cement

Masonry

Cement Lime Aggregate

Air

Cement-

Lime 1 --- --- ¼ to ½

Not less than 2

¼ and not more than 3 times total volume of cementous material

8-12

Masonry

Cement --- --- 1 --- 8-12

Hydraulic

Cement --- 1 --- ¼ to ½ 8-12

(1) When air entrainmentis required, determine air content per ASTM C 91 except use the same material and proportions used in construction.

718 - Traffic Signing and Marking Material

718.05_nat_us_08_05_2009

718.05 Aluminum Panels

Delete the third paragraph and replace with the following:

Clean, degrease and properly prepare the panels according to methods recommended by the sheeting manufacturer. Conversion coatings will conform to ASTM B-921 or ASTM B-449.