P ositive N eutral P oison 1 2/4/2019 Partners In Qualit ity - - PDF document

2/4/2019 1

Quality Starts With The Pre Pave Meeting Larry Welch Chuck Fuller

Ac Achi hieving ng Qual ality Aspha phalt Pavem ement ent through gh Comm mmuni unica cation

P N P

• sitive

eutral

• ison

2/4/2019 2

Partners In Qualit ity y Meetin ing

• Started in Houston District
• In 2016 Under direction of TXAPA Board – 30

meetings throughout the State

• Open Communication
• All stakeholders want same outcome
• Pre-Pave Meeting

Nothing ng Bad Happens ens Till l Someth ething ng Bad Happens pens

Pre-Pave meetin ing g should uld be sepa parate from Pre-Co Constructio ion meetin ing

Pro roje ject Specif ific ic | Avoid d Confus usio ion | Reporting ing Inform rmatio ion

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All l decisi ision makers that are involv lved with the produc uctio ion, placement, qua ualit lity y control l and qualit ity y acceptance of the asph phalt lt should ld be in attendance of the pre-pa pave meetin ing

Verif ify Certif ific icatio ions ns| Avoid d Confusio ion n | Reportin ing g Inform rmatio ion

Pre-Pa Pave ve meet eting should uld be modified ed for project ect specifi cific

Pro roje ject Specif ific ic | Avoid d Confus usio ion | Reporting ing Inform rmatio ion

Large ger phased proje jects s can AND shoul uld have more than

• ne pre-pa

pave meetin ing

Change ge of Plants| Verif ify Design| n| MPL | Change ge of Pe Personnel nnel

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Durin ing g the meetin ing- indiv ivid idua uals ls should uld take resp sponsibil ibilit ity and

• wnersh

ship ip in what is decid ided

Argumen ents ts Diminish inished| ed| Clarif ify 1.0 Pay Factor tor| | Agree eed d in the Meeting ting

Any y change ges s to the pre-pa pave meetin ing g notes s should uld be done in writ itin ing g and all l decisio ision makers s should uld have a copy

Less ss Confusi sion

• n | Prevent Delay

y in Repor portin ting | Everyon

• ne Agrees

s

Some e uniqu que e issue ues s that t can be discussed ussed and agreed eed Upon Before e Constr truc ucti tion

Contractor Doesn’t want to throw mix away TxDOT wants s smoo

• oth, durabl

ble, long last sting pavement Discu scuss s befor

• re pavement

t work rk begins Discu scuss s Paym yment t option

• ns

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TxDOT---

• - QCP
• Quality
• Control
• Plan

Qual ality ity Contro rol l Pla lan n (QCP) P)

• Develop and follow the QCP in detail. Obtain approval for

changes to the QCP made during the project. The Engineer may suspend operations if the Contractor fails to comply with the QCP.

• Submit a written QCP before the mandatory pre-paving
• meeting. Receive approval of the QCP before beginning
• production. Include the following items in the QCP.

1.Projec

• ject

t Personne sonnel

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Project ect Perso sonnel el, for project ect perso sonnel el, includ ude: e:

• a list of individuals responsible for QC with authority

to take corrective action;

• current contact information for each individual

listed; and

• current copies of certification documents for

individuals performing specified QC functions.

Lis ist Of Individual als Respo pons nsibl ible e -QC QC

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2.Mat ateri erial al Deli liver ery y and Storage age

Materi erial l Deli liver ery y and Storage.

. Fo For materia ial l deliv ivery y and storage ge, inclu lude:

• the sequence of material processing, delivery, and

minimum quantities to assure continuous plant

• perations;
• aggregate stockpiling procedures to avoid contamination

and segregation;

• frequency, type, and timing of aggregate stockpile testing

to assure conformance of material requirements before mixture production; and

• procedure for monitoring the quality and variability of

asphalt binder.

Materia terial deliver ery y for plant t oper erati tions

2/4/2019 8 Asph phal alt Bin inder er quality ity

3.Pro roduction uction

Producti

• uction. Fo

For produc ucti tion, include: ude:

• loader operation procedures to avoid contamination in cold

bins;

• procedures for calibrating and controlling cold feeds;
• procedures to eliminate debris or oversized material;
• procedures for adding and verifying rates of each applicable

mixture component (e.g., aggregate, asphalt binder, RAP, RAS, Lime, liquid antistrip, WMA);

• procedures for reporting job control test results; and
• procedures to avoid segregation and drain-down in the silo.

2/4/2019 9 Cold ld fe feed ed bin ins and Cali libr brati ating ng Eli limi mina nate e debri bris and nd over ersized zed materi erial al Verif rifying ng rates es

2/4/2019 10 Warm rm mix ix additiv itives es, , verify fying ng rates es Repo porting ng job b test results ults Avoid segreg gregati ation n and nd drai ain-down n in in sil ilos

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4.Loa

• ading

ding and Transpor nsporting ting

Load ading ng and Tran anspo porting

• ng. Fo

For r lo load ading ng and nd tran anspo porting ng, , in includ ude: e:

• type and application method for release agents; and
• truck loading procedures to avoid segregation.

Releas lease e agent ents

2/4/2019 12 Truck uck lo load ading ng to avoid segrega gregation Three ee-dro rop p Met etho hod

• 1st

st Drop

• p at Fron
• nt
• 2nd

nd Drop

• p at Rear
• 3rd

rd Drop

• p in Center

er

Reduce aggregate roll-down Important when paving with large stone mixes

5.Pla lacemen cement t and Compacti mpaction

• n

2/4/2019 13 Pla lacem cemen ent and nd Comp mpac action. . Fo

For placemen cement t and compact ction, include: ude:

• proposed agenda for mandatory pre-paving meeting, including

date and location;

• proposed paving plan (e.g., paving widths, joints offsets, and

lift thicknesses);

• type and application method for release agents in the paver

and on rollers, shovels. lutes, and other utensils;

• Procedures for transfer of mixture into the paver, while

avoiding segregation and preventing material spillage;

• Process to balance production, delivery, paving, and

compaction to achieve continuous placement operations and good ride quality;

Cont…

• paver operations (e.g., operation of wings, height of

mixture in auger chamber) to avoid physical and thermal segregation and other surface irregularities; and

• procedures to construct quality longitudinal and

transverse joints.

Pre Pre-Paving ng Meet etin ing

2/4/2019 14 Paving ng Pla lan, n, widths,

s, offse sets, s, and thickness esses es

Releas lease e agent ent usag age e met etho hods

Transf sfer er mixtur ture e into to paver ver avo voiding segreg egati tion

• n and spill

llage age

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Balance ce produc ucti tion,

deliver ivery, compacti action, n, and smooth thnes ness

Paver er Oper erations Qual ality ity Long ngitudi itudina nal l and nd Transv nsver erse e Joints nts

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Ride Quality ty Ite tem 585

• 1. Is Ride Quality required? YES / NO
• 2. What Pay Adjustment Schedule is required? YES / NO
• 3. What type of equipment (straightedge, profiler, etc.) will be used for

contractor quality control testing?

• 4. Will a high speed or lightweight profiler be used for quality assurance

(QA) testing?

• 5. Ensure that profiler and operator are certified and that certification is

current.

• 6. The Contractor will notify TxDOT prior to beginning QA testing. (24 hours

notification preferred)

• 7. Profile measurements must be submitted to the Engineer within 24

hours of completion and with an approved format specified in Test Method Tex-1001-S.

Misce cellaneo eous us

• Surface Irregularities: If a pattern of surface irregularities is detected

(including, but not limited to, color, texture, roller marks, tears, uncoated aggregate particles, or segregation):

• a. The Contractor shall make an investigation into the cause or causes

and immediately take the necessary corrective action.

• b. Placement may continue for no more than (1) day of production from

the time the Contractor is first notified and while corrective actions are being taken.

• c. If no corrective action is taken or if the problem exists after (1) day,

paving shall cease until the Contractor further investigates the causes and the Engineer approves further corrective action.

• d. Remove & Replace, at the Contractor’s expense, any mixture that does

not bond or has surface irregularities.

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Pavemen vement t Prep ep for ove verlays ys and mainten enance ce work.

• Physically look at Pavement Structure
• Understand need to repair
• Utilize tools in the toolbox
• If not corrected be aware of consequences

Take e Awa way

GOAL L | COMMUNIC UNICATION ION | TRUST

2/4/2019 18

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