2/4/2019 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 ositive N eutral P oison 1
2/4/2019 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 2
2/4/2019 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 one pre-pa pave meetin ing Change ge of Plants| Verif ify Design| n| MPL | Change ge of Pe Personnel nnel 3
2/4/2019 Durin ing g the meetin ing- indiv ivid idua uals ls should uld take resp sponsibil ibilit ity and ownersh 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 on | Prevent Delay y in Repor portin ting | Everyon one 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 ooth, durabl ble, long last sting pavement Discu scuss s befor ore pavement t work rk begins Discu scuss s Paym yment t option ons 4
2/4/2019 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 oject t Personne sonnel 5
2/4/2019 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 6
2/4/2019 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 operations; • 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 7
2/4/2019 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. 8
2/4/2019 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 9
2/4/2019 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 10
2/4/2019 4.Loa oading ding and Transpor nsporting ting Load ading ng and Tran anspo porting ng. Fo For r load lo 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 11
2/4/2019 Truck uck lo load ading ng to avoid segrega gregation Three ee-dro rop p Met etho hod st Drop • 1 st op at Fron ont nd Drop • 2 nd op at Rear rd Drop • 3 rd op in Center er Reduce aggregate roll-down Important when paving with large stone mixes 5.Pla lacemen cement t and Compacti mpaction on 12
2/4/2019 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 13
2/4/2019 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 on and spill llage age 14
2/4/2019 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 15
2/4/2019 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. 16
2/4/2019 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 17
2/4/2019 Thank You Session Evaluations/PDH’s See you again at: • Complete session feedback in • CONEXPO-CON/AGG 2020 mobile app, your comments – March 10-14, 2020 appreciated. – Las Vegas, NV – 140+ education sessions • World of Asphalt 2021 • Professional Development – March 16-18, 2021 Hours logged in session feedback. – Atlanta, GA – 120+ education sessions #WorldofAsphalt 18
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