NCHRP 9-49B Web-Based Survey Step 1 of 3 33% You are invited to complete an online survey as part of National Cooperative Highway Research Program (NCHRP) Project 9-49B Performance of WMA Technologies: Stage I – Moisture Susceptibility Validation. The purpose of this web-based survey is to identify warm-mix (WMA) pavements with mix design and quality assurance (QA) data that include laboratory test results of any of the following methods: Dry and wet indirect tensile (IDT) strength and tensile strength ratio (TSR) per AASHTO T283 Dry and wet resilient modulus (MR) per ASTM7369 with moisture conditioning per AASHTO T283 Hamburg Wheel Tracking Test (HWTT) per AASHTO T324 Your response will be used to validate the thresholds proposed in the NCHRP Project 9-49 guidelines for identifying potential moisture susceptibility in WMA. A follow-up phone interview may be necessary to clarify some responses to the survey. Your participation is entirely voluntary, and you will receive no direct benefit from completing the survey. We would appreciate your response by November 14, 2014. Responses will be confidential, but results will only be released in aggregate form and possibly by organization/company without identification of specific individual respondents. Questions marked with an asterisk (*) are necessary to make your survey usable. Please press NEXT SCREEN if you consent to participate in this study by completing the survey. If at any point you change your mind and decide not to participate, you can simply close the browser. Only complete responses will be recorded. Contact Information1. Name* First Last Company/Organization Address Street Address Address Line 2 City State / Province / Region ZIP / Postal Code AfghanistanAlbaniaAlgeriaAmerican SamoaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBoliviaBonaire, Sint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBrunei DarussalamBulgariaBurkina FasoBurundiCabo VerdeCambodiaCameroonCanadaCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos IslandsColombiaComorosCongoCongo, Democratic Republic of theCook IslandsCosta RicaCroatiaCubaCuraçaoCyprusCzechiaCôte d'IvoireDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEswatiniEthiopiaFalkland IslandsFaroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuamGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and McDonald IslandsHoly SeeHondurasHong KongHungaryIcelandIndiaIndonesiaIranIraqIrelandIsle of ManIsraelItalyJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKorea, Democratic People's Republic ofKorea, Republic ofKuwaitKyrgyzstanLao People's Democratic RepublicLatviaLebanonLesothoLiberiaLibyaLiechtensteinLithuaniaLuxembourgMacaoMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMicronesiaMoldovaMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorth MacedoniaNorthern Mariana IslandsNorwayOmanPakistanPalauPalestine, State ofPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalPuerto RicoQatarRomaniaRussian FederationRwandaRéunionSaint BarthélemySaint Helena, Ascension and Tristan da CunhaSaint Kitts and NevisSaint LuciaSaint MartinSaint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint MaartenSlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwedenSwitzerlandSyria Arab RepublicTaiwanTajikistanTanzania, the United Republic ofThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkmenistanTurks and Caicos IslandsTuvaluTürkiyeUS Minor Outlying IslandsUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUruguayUzbekistanVanuatuVenezuelaViet NamVirgin Islands, BritishVirgin Islands, U.S.Wallis and FutunaWestern SaharaYemenZambiaZimbabweÅland Islands Country PhoneEmail WMA Use and Materials2. To what extent does your organization utilize warm mix asphalt (WMA)? Routine use Trial or research projects only Have never used WMA Have used WMA before but not currently – please provide reason below for discontinuation of use I do not know Reason for discontinued use of WMA 3. What types of WMA technologies does your organization use? (please check all that apply) Accu-ShearTM Advera® WMA AquablackTM AquaFoam Aspha-Min® Cecabase® RT Double Barrel Green® ECOFOAM-II EvothermTM – please specify type(s) below LEADCAP Low Emission Asphalt (LEA) Meeker WMA RedisetTM – please specify type(s) below REVIXTM Sasobit® Shell ThiopaveTM SonneWarmix Terex® TLA-X Warm Mix Tri-Mix Ultrafoam GXTM WAM Foam® Other – please list below Type(s) of Evotherm used Type(s) of Rediset used Other type(s) of WMA technologies used 4. Does your organization require the use of anti-stripping agents with WMA? Yes, because of aggregates with a history of moisture susceptibility problems Yes, because of laboratory test results indicating moisture susceptibility Yes, due to other reason – please specify below No Other reasons your organization requires the use of anti-stripping agents with WMA Moisture Susceptibility Tests and Criteria5. Does your organization have a standard or specification that includes moisture susceptibility laboratory testing as part of the mix design procedure or construction QA? Yes, for mix design only – please write the standard/specification below Yes, for construction QA only – please write the standard/specification below Yes, the same for mix design and construction QA - please write the standard/ specification below Yes, different for mix design and construction QA - please write the standards/ specifications below No I don't know Standard/specification (if answered yes above) 6. What moisture susceptibility test(s) is (are) included in the standard/specification? Wet Indirect Tensile (IDT) Strength Tensile Strength Ratio (TSR) Resilient Modulus (MR) Wet to Dry MR Ratio Hamburg Wheel Tracking Test Other – please specify below Other moisture susceptibility test Please list the specimen fabrication protocol (short-term oven aging – STOA – of the loose mix prior to compaction), moisture conditioning procedure (or water temperature for Hamburg), and pass/fail criteria for hot mix asphalt (HMA) and WMA if they are different.Pavement Performance7. Have any of the WMA pavements in your state experienced premature or extensive moisture-related distress? No moisture-related distress observed to date – please indicate (below) the range of age of the pavement(s) showing adequate moisture-related performance Yes – please indicate (below) the type, extent, and severity of the failure, age of the pavement, and possible cause of failure (e.g., asphalt content, compaction level, aggregate type, etc.) Additional comments for question 78. Does your organization have laboratory test results (IDT, TSR, MR, or HWTT) or other information relevant to the moisture susceptibility guidelines proposed in NCHRP 9-49 that can be made available to the researchers conducting this study (please check all that apply)? Mix design Construction quality assurance Field/forensic evaluation Technical reports Field cores Other-please specify below Other results 9. Does your organization have upcoming WMA projects and is willing to participate in NCHRP Project 9-49B by sharing information about mix design, construction, materials, and/or field performance monitoring? Yes, willing to participate Yes, but not able to participate No upcoming WMA field projects 10. Please provide any additional comments, experiences, or challenges you wish to share about moisture susceptibility of WMA pavements. Δ