AASHTO Construction Guide Specifications Update

AASHTO Construction

Guide Specifications

Update

AASHTO Highway Subcommittee on ConstructionAnnual Meeting

August 4, 2005Louisville, Kentucky

Background

� One of several AASHTO publications developed by SOC

� First published in 1962

� This is the 9th update

� Updated about every 5 years

� Provides uniformity of:� Nomenclature

� Format

� Method of measurement

� Test methods

� Payment

Status of Current Update

2003 – 2004: Initial Review by the SOC

AASHTO SOC Section Assignments

200, 800, and AppendixRoadway and Structures

600, 700Environment and Human

Resources

100, 500, 550Contract Administration

300, 400Computers and Technology

Specification DivisionsSOC Sections

Status - Continued

August 2004: Task Force Established

� Guide Specifications Task Force Members�Jim Tynan, NY DOT

�George Raymond, OK DOT

�David Sadler, FDOT

�Greg Doyle, FHWA

�Bob Watson, MaineDOT

�Ken Jacoby, FHWA

�Jim McDonnell, AASHTO

Status - Continued

August 2004 – Present� March 2005 - Task Force completed initial

rewrite of specifications

� April 2005 - Draft specs posted on the AASHTO SOC website for review by the SOC members� 6 States submitted comments through website

� 205 comments received

� June 2005 - NCHRP Project 20-7/207 initiated to develop final document

Division 100. General Provisions

2003 - 2004 Initial Review Highlights:

� Section 101. General Information, Definitions, and Terms

� Definitions (101.03) - Revised some of the existing

definitions

� Section 102. Bidding Requirements and Conditions

� Preparing the Proposal (102.06) - Revised language

of bid proposals that written words govern over

numeric in discrepancies



� Section 103. Contract Award and Execution

� Contract Bond (103.05) – Editorial Revisions

(conditions on Surety)

� Section 104. Scope of Work

� Environmental Protection (104.13) – Added language

to ensure turbidity and erosion control measures are

in place



� Section 105. Controlling Work

� Plans and Working Drawings (105.02) – Added

language requiring shop drawings and other documents to detail work not included in plans

� Contractor Cooperation (105.05) – Added English language requirements for Contractor personnel on

project



� Section 105. Controlling Work (- Continued -)

� Construction Stakes, Lines, and Grades (105.08) –

Revised Agency staking requirements to include only control points and benchmarks

� Inspecting Work (105.11) – Added language indicating failure to identify defects initially does not

obligate Agency to accept defective work



� Section 107. Legal Relations and Responsibility to the Public

� Discovery of Unmarked Human Burial (NEW SECTION 107.09) – Section added to address finding of an unmarked human burial

� Section 108. Prosecution and Progress

� Subletting the Contract (108.01) – Added language deleting specialty work from subletting percentage

� Character of Workers (108.04) – Editorial Revisions


2005 Website Review Comments:

� Section 101. General Information, Definitions, and Terms

� Grammar, punctuation, and consistency of

terminology

� Section 102. Bidding Requirements and Conditions

� Consistency of terminology usage



� Section 103. Contract Award and Execution

� Return of bid proposals

� Verifying bid error on proposals

� Section 104. Scope of Work

� Consistent word usage

� Railroad insurance, flagging, and right of way restrictions



� Section 105. Controlling Work

� Formatting and eliminating redundancies in Spec

� Language requirements for Contractor personnel

� Section 106. Controlling Materials

� Contractor responsibility for all work



� Section 107. Legal Relations and Responsibility to the

Public

� Legal requirements of Contractor

� Section 108. Prosecution and Progress

� Contractor’s employee to return to work after having

been removed by Agency

� Reference location in Spec of definitions of terms used



� Section 109. Measurement and Payment

� English/Metric Units

� Imperative mood of text

� Spec references (rabbit trails)

� Limiting partial payment amount

Division 200. Earthwork


� Sections 201 thru 208 (All Sections)

�NO REVISIONS PROPOSED

Division 200. Earthwork



�NO COMMENTS RECEIVED FROM STATES

Division 300. Base Courses


� Section 301. Plant Mix Asphalt Base Course

� SECTION DELETED (Reserved) – Due to

redundancy with Section 401 Plant Mix Pavements

� Section 302. Road Mix Asphalt Base Course

� SECTION DELETED (Reserved) – Due to

redundancy with Section 403 Road Mix Asphalt

Pavement



� Section 304. Aggregate Base Course

� Subgrade Preparation – Added provisions to address subgrade requirements & reference to Section 305

� Payment (304.05)� Deleted payment for water as it is dependent on the

Contractor’s Efficiency

� Deleted payment for calcium chloride & sodium chloride as there are no material or construction specifications for use

� Added generic language and labelled Pay Items “A”, “B”, etc. (Note: This was done for all Sections in Divisions 300 & 400)



� Section 305. Subgrade Modification

� Construction (305.03) – Added construction requirements in lieu of reference to other Sections

� Payment (305.05)

� Deleted payment for water as it is dependent on the Contractor’s efficiency

� Deleted payment for calcium chloride & sodium chloride as there are no material or construction specifications for use

� Added generic language and labelled Pay Items “A”, “B”, etc.



� Section 306. Reconditioning

� Section Title - Renamed Section “Reconditioning Existing Base and Surface”

� Payment (306.05) - Deleted payment for water as it is dependent on the Contractor’s efficiency

� Section 307. Lime-Treated Courses

� Lime (307.03) – Deleted reference to “lime byproduct”

� Payment (307.05) – Deleted several Pay Items (Quick Lime, Water, Cutback Asphalt, Emulsified Asphalt)



� Section 308. Cement-Treated Base Course


Contractor’s efficiency

� Deleted payment for prime coat and referred to Section 405 instead

� Section 309. Portland or Blended Hydraulic Cement Concrete Base Course

� Minor language edits and additions



� Section 310. Lean Concrete Base Course

� Curing (310.03) – Added provisions for curing

� Minor language edits and additions

� Section 311. Lime-Fly Ash-Treated Courses

� Construction (311.03) – Reorganized mixing and curing provisions as they were out of sequence


Contractor’s efficiency

� Changed to single Lime pay item

� Deleted “Asphalt Curing Seal” pay item



� Section 312. Fly Ash Treated Course

� NEW SECTION – Added new Section similar to 307 “Lime-Treated Courses” and 311 “Lime-Fly Ash-

Treated Courses”

� Section 313. Open Graded Bituminous Base

� NEW SECTION – Added new Section to provide drainable base specifications



� Section 314. Open Graded Portland Cement Concrete

Base

� NEW SECTION – Added new Section to provide

drainable base specifications

� Section 315. Separator Fabric for Bases

� NEW SECTION – Added new Section to provide specifications for geo-fabrics



� Section 304. Aggregate Base Course

� Description (304.01) – Define “prepared foundation”

� Materials (304.02) – Clarify or correct reference

� Construction (304.03) – Grammar

� Section 305. Subgrade Modification

� Materials (305.02) � Retain items for Calcium Chloride and Sodium Chloride

� Clarify or correct reference

� Construction (305.03)� Provide Hyperlink or Web Address to referenced information



� Section 306. Reconditioning (Existing Base and Surface)

� Construction (306.03) – Clarify reference to “pulverized material”

� Section 308. Cement Treated Base Course

� Materials (308.02) � Correct use of term “Portland Cement”

� Clarify or correct reference

� Construction (308.03)� Punctuation

� Provide Hyperlink or Web Address to referenced information



� Section 309. Portland or Blended Hydraulic Cement

Concrete Base Course

� Construction (309.03) – Correct Subsection reference

� Section 310. Lean Concrete Base Course

� Construction (310.03)

� Define “Mpa”

� Grammar, proposed language



� Section 311. Lime-Fly Ash-Treated Courses

� Materials (311.02) – Clarify or correct reference

� Section 312. Fly Ash Treated Course

� Section Title – Propose title to be “Fly Ash Treated Base Course”

� Construction (312.03) – Indicate how amount of Fly

Ash is determined



� Section 313. Open Graded Bituminous Base

� Change “Bituminous” to “HMA”

� “Open Graded Bituminous Base” not clearly defined

� Section 314. Open Graded Portland Cement Concrete Base

� Include acronym “OGPCCB” in parentheses

� Proportioning (314.02, 03) – Not complete to clearly define mix

� Term “SHA”

Division 400. Flexible Pavements


� Section 401. Plant Mix Pavements - General

� Addressed use of Recycled Asphalt Pavement (RAP)

� Prepaving Requirements – Added new Subsection to address mix verification + control strip

� Ride Testing – Added method for inertial profiler with reference to AASHTO PP51

� Various other changes and clarifications

� Section 402. Cold Mix Asphalt Pavement

� Minor proposed clarifying language



� Section 403. Road Mix Asphalt Pavement


� Section 404. Tack Coat

� Measurement (404.04) – Specified that water used for dilution will not be measured for payment




� Section 405. Prime Coat

� Measurement (405.04) – Specified prime coat to be measured by amount of residual asphalt


� Section 406. Seal Coat

� Description (406.01) – Revised to address “single or multiple courses”

� Rolling – Specified pneumatic tired rollers




� Section 407. Surface Treatment

� SECTION DELETED - Section considered redundant

to Section 406 Sealcoat

� Section 408. Slurry Seal (Latex Modified)

� Changed references to “latex” to “polymer modified”

� Weather Limitations – Moved Subsection




� Section 409. Cold Milling Asphalt Pavement


� Section 410. Recycling Asphalt Pavement Material

� SECTION DELETED (Reserved) – Addressed in Section 401 Plant Mix Pavements



� Section 411. In-Place Cold Recycled Asphalt Pavement



� Section 412. Surface Recycling



� Section 413. Fabric Reinforcement for Asphalt Concrete Pavement





� Section 401. Plant Mix Pavements - General

� Description (401.01)� Provide Hyperlink or Web Address to referenced information

� Materials (401.02) � Recommend retaining term “Agency” rather than “SHA”

� Construction (401.03)� Replace “Bituminous” with “HMA” throughout Section


� Punctuation

� Section 402. Cold Mix Asphalt Pavement

� Punctuation



� Section 403. Road Mix Asphalt Pavement

� Description (403.01)� Provide reference to applicable Section for preparation of

“foundation or road surface”

� Materials (403.02)� Correct Subsection reference


� Section 406. Seal Coat

� Construction (406.03)� Grammar, proposed language



� Section 408. Slurry Seal (Polymer Modified)


� Section 412. Surface Recycling

� Construction (412.03)� Correct Subsection reference

� Section 413. Fabric Reinforcement for Asphalt Concrete Pavement

� Section Title – Correct formatting

Division 500. Rigid Pavement


� Section 501. Portland Cement Concrete Pavement

(PCCP)

� Mix Design Changes (501.03A.4) – When cement content varies >2%, adjust proportions to maintain

cement within tolerance

� Subgrade or Base Course (501.03D) – Finish

subgrade in smooth, compact condition and restore disturbed areas prior to placing pavement



� Section 501. Portland Cement Concrete Pavement (PCCP) (- Continued -)

� Longitudinal Joints (501.03J.1) – Ensure tiebars are placed parallel to finished surface & right angle to joint

� Contraction Joints (501.03J.2) – Repair uncontrolled cracks at no expense to Agency for full width of affected pavement

� Machine Finishing (501.03K.3) – Avoid misalignment or damage to embedded items (joint assembly, rebar, dowels)



� Section 501. Portland Cement Concrete Pavement (PCCP)

�Consistent use of terminology

�Spelling corrections

�Rabbit trails

�Delete smoothness language and reference Section 400

Division 550. Rehab. of PCC Pavement




Division 600. Miscellaneous Const.




Division 700. Materials Requirements


� Section 702. Asphalt

� Asphalt Cements – Add reference to AASHTO M320 for Performance Graded Asphalt Binder

� Section 703. Aggregates

� Lightweight Aggregate for Structural Concrete –Move this Subsection (703.14) to 703.01

� Section 704. Aggregates for Drainage

� ELIMINATE SECTION. This section should be covered under Section 703 Aggregates.


2003 - 2004 Initial Review Highlights:� Section 708. Concrete, Clay, and Plastic Pipe

� Joints for Circular … Pipe (708.10) – Move Joints up under Section 707, Joint Materials

� Polyethylene Corrugated … Pipe (708.12) – Separate these two types of pipes (AASHTO M252 and M294) as they generally serve different purposes

� Section 711. Reinforcing Steel and Wire Rope� REWRITE SECTION - This Section needs extensive

re-write for clarification


2003 - 2004 Initial Review Highlights:� Section 712. Fence and Guardrail

� Steel Box Beam Rail – References both ASTM A500 and A501. Unclear which should govern.

� Section 714. Miscellaneous Requirements

� Editorial Revisions – Minor word changes for clarification

� Section 715. Roadside Improvement Materials

� Miscellaneous (715.08) – Suggest renaming 715.08 to something other than “Miscellaneous”



� Section 701. Hydraulic Cement

� Change term ‘Hydraulic’ to ‘Portland’

� Section 702. Asphalt

� Asphalt for Dampproofing … (702.04) – Delete Subsection (AASHTO M118 has been deleted)

� Asphalt Primer for Damproofing… (702.05) – Delete

Subsection (AASHTO M121 has been deleted)



� Section 703. Aggregates

� Aggregate Gradation … (703.06) – Remove table and

reference AASHTO M323

� Section 707. Joint Materials

� Poured Joint Sealants (707.01A)

� Delete AASHTO M173, M282, ASTM D3405� Add AASHTO M282, M324


2005 Website Review Comments:� Section 708. Concrete, Clay, and Plastic Pipe

� Drain Tile (708.04) – Remove reference to M179� Perforated Vitrified Clay Pipe (708.06) – Delete

708.06 since AASHTO M65 has been deleted� Vitrified Clay Pipe (708.07) – Delete 708.07 since

AASHTO M65 has been deleted

� Section 712. Fence and Guardrail� Question regarding use of term “guardrail” vs. “traffic

barrier”


2005 Website Review Comments:� Section 713. Concrete Curing Materials and Admixtures

� Recommend adding:� Coal Fly Ash and Pozzolan as a mineral admixture,

AASHTO M295� Ground Granulated Blast Furnace Slag, AASHTO M302� Silica Fume as a mineral admixture, AASHTO M307� High Reactivity Pozzolans as a mineral admixture,

AASHTO M321

� Section 714. Miscellaneous Requirements� Combine all limes into one section (Hydrated lime

AASHTO M216, Quicklime AASHTO M216, Lime for asphalt mixtures AASHTO M303)

Division 800. Structures


� Section 801. Excavation and Backfill for Major Structures

� Backfill – Compact to [95] Percent Maximum Density

(Use T99 + T191, T238, or T205 to Measure)

� Section 804. Driven Foundation Piles

� REVISION PROPOSED – NOT INCORPORATED

� Revise per Guide Specs in “Design and Construction of Driven Pile Foundations” (FHWA-HI-97-013)



� Section 805. Drilled Piles and Shafts

� REVISION PROPOSED – NOT INCORPORATED� Revise per Guide Specs in “Drilled Shafts: Construction

Procedures and Design Methods” (FHWA-IF-99-025)

� Revise per AASHTO Subcommittee on Bridges T-15 Drilled Shaft Construction Specification

� Section 806. Ground Anchors

� REVISION PROPOSED – NOT INCORPORATED� Revise per Guide Specs in “GEC #4 – Ground Anchors and

Anchor Systems” (FHWA-IF-99-015)



� Section 807. Earth Retaining Systems� REVISION PROPOSED – NOT INCORPORATED

� Revise using approach for variety of systems per “Earth Retaining Structures” (FHWA-NHI-99-025)

� Section 808. Concrete Structures� Materials – Add Fly Ash, GGBFS, and Silica Fume

� Weather & Environmental Conditions

� Hot and Dry Weather – Expand temperature and evaporation control provisions

� Rainy Weather – Add new Subsection to address rainy weather

� Cold Weather – Expand Placement & Curing Plan requirements + Expand Temperature Control Provisions with new table



� Section 808. Concrete Structures (- Continued -)

� Concrete Placement� Vibration Rate – Revise to: 5,500 - 13,500 VPM

� Curing Bridge Decks

� Subsection Re-write – “Wet Cure” Recommended Practices

� Fog Spray during placing and finishing

� Apply curing protection (wet burlap) within 15 minutes

� Maintain continuous water curing at least 14 days

� Only in event of unavoidable delay, substitute water curing withtwo coat application of liquid membrane curing compound

� Monitor and control concrete temperature after placement



� Section 821. Waterproof or Dampproof Concrete or Masonry Surfaces

� Materials

� Preformed Membrane Sheet – Reference AASHTO LRFD Bridge Design Specifications

� Section 824. Pneumatically Applied Mortar

� Editorial Revisions – Remove word “Section”

� Section 825. Steel and Concrete Tunnel Liners

� Materials

� Steel Liner Plates & Bolts – Reference AASHTO LRFD Bridge Design Specifications



� Section 801. Excavation and Backfill for Major Structures

� Payment (801.05) – Add pay items for “Backfill” and

“Flowable Fill

� Section 804. Driven Foundation Piles

� Construction (804.03B) – What are “canthooks, dogs,

or pike-poles”?



� Section 808. Concrete Structures

� Construction (808.03)

� Concrete Mix Design – Why limit cement content to maximum of 476 kg/m2?

� Grammar, punctuation, and clarifying language

� Section 809. Reinforcing Steel

� Description (809.01)

� Delete unnecessary wording (i.e. “Furnish and …)



� Section 810. Prestressed Concrete

� Materials (810.02)� Correct Section Reference

� Measurement (810.04)� Why “No measurement required”?

� Section 811. Steel Structures

� Materials (811.02) � Provide Hyperlink or Web Address to referenced information

� Construction (811.03)� Grammar, punctuation, and clarifying language

� Correct Section Reference



� Section 812. Steel Grid Flooring


� Section 813. Painting


� Construction (Section 813.03)� Provide Hyperlink or Web Address to referenced information

� Grammar, punctuation, and terminology



� Section 814. Stone Masonry

� Materials (814.02)

� Sand Aggregate - Revise Subsection title

� Section 815. Concrete Block and Brick Masonry



� Sand Aggregate - Revise Subsection title



� Section 816. Timber Structures


� Specify Appropriate References

� Construction (Section 816.03)

� Grammar, punctuation, and clarifying language

� Section 817. Wood Treatment


� Timber Preservatives - Correct Section Reference



� Section 818. Bearing Devices

� Materials (818.02)� Provide Hyperlink or Web Address to referenced information

� Correct Section Reference

� Construction (818.03)� Grammar, punctuation

� Section 819. Bridge Deck Joint Seals




� Section 824. Pneumatically Applied Mortar

� Requirements (824.03)

� Correct language to Active Voice/Imperative Mood

� Proposed clarifying language

� Section 831. Aluminum Structures



Appendices (NEW)


� AASHTO Primer on Contracting For 21st Century

� Innovative Contracting Provisions (from NCHRP 20-7)

� Generic Warranty

� Plant-Mix Asphalt Pavement Warranty

� A+B with Incentives/Disincentives

� Incentives/Disincentives

� Lane Rental

� A+B with Lane Rental

� Nighttime Construction

� Temporary Noise Suppression Devices

Appendices (NEW)


� Pavement Ride Quality Provisions

� AASHTO PP51 – Pavement Ride Quality When

Measured Using Inertial Profiling Systems

� AASHTO SOM recommends transferring

ownership to SOC

� SOC Specifications Task Force recommends

incorporating Ride Quality provisions into Division 400 (Section 401) with some revisions

Next Steps

Activity

� SOC Task Force provide recommendations on web comments & other cleanup

� Trauner revise specifications based on recommendations from SOC Task Force� Review of specifications for

consistency and clarity

� Convert units to English

Completion Date

Sept 2005

Jan 2006

Next Steps - Continued

Activity

� Final Review of the document by SOC Specifications Task Force

� Submit document to AASHTO Subcommittee on Construction for balloting

� Update document to incorporate comments received from SOC ballot

Completion Date

Feb 2006

Mar 2006

Jun 2006

Next Steps - Continued

Activity

� Submit document to

SCOH for balloting and final comments

� Final changes based on SCOH comments

� Final document published by AASHTO

Completion Date

Jul 2006

Sep 2006

Nov 2006

AASHTO Construction Guide Specifications Update

Documents

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