ASPHALTopics | Summer 2020 | VOL 33 | NO 2

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WORKINGSUCCESSFULLYWITHPMACby James CarelessPolymer-modified asphalt cement (PMAC) produces a high performancemix that delivers on performance and durability. Over the last few years,the Ministry of Transportation as well as many regions and municipalitieshave started to specify PMAC for certain projects, particularly in areaswith extreme temperature fluctuations or heavy traffic loading.While there’s no doubt PMAC is here to stay, it’s alsoclear that working with a high performance material canrequire new or different ways of doing things. Before thearrival of COVID-19, OAPC had planned a Spring Operationspanel session to discuss the production and placementchallenges of working with PMAC. The pandemic ledto that event’s cancellation, but the participants havesince spoken with ASPHALTopics to share their viewson working with PMAC and the factors to keep in mindfor its successful use. ››30 OAPC | ASPHALTOPICS
A live bottom truck reduces segregation and temperature loss of PMAC. (Yellowline)SUMMER 2020 31
Page 1: SUMMER 2020 | VOL33 | NO2MUNICIPAL
Page 5: CHAIR’sCORNERIvan LevacChairRedef
Page 9 and 10: MARCOMMATTERSWhen I wrote the last
Page 11 and 12: SThe quality of collaboration betwe
Page 13 and 14: Area Two was finished in August 201
Page 15 and 16: The project required echelon paving
Page 17 and 18: To save time and moneywithout sacri
Page 19 and 20: by Steve PecarOpportunity doesn’t
Page 21 and 22: Christina Wright andBridget Mills,
Page 23: AI COMPLETESLCA STUDY ONASPHALTBIND
Page 27 and 28: AI’S LCA STUDY ON ASPHALTBINDER A
Page 29: • the methods used in the LCA are
Page 33 and 34: PMAC’s temperature up during tran
Page 35 and 36: by Lara HenryOn April 22, the world
Page 38 and 39: OAPC PARTNERS IN QUALITYWEBINAR BRI
Page 40 and 41: TECHNICALLYSPEAKINGDoubra C. Ambaio
Page 42 and 43: Mixes with insufficient AC content
Page 44 and 45: CONGRATULATIONS ROADSSCHOLARSHIP RE
Page 46: THE LASTWORDFernando MagisanoI’ve

ASPHALTopics | Summer 2020 | VOL 33 | NO 2

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