Methods of enhancing compaction (proposed new title) Identify asphalt mix additives that aid in compaction (12) #5 IL – (additives or construction technologies that can be used to achieve higher density in #2 - FHR #3 FHR – the field) #1 UMN – 12 #4 - WI UofNH SuperPave 5 Evaluation (33 - IL suggested) #5 MN – (MN-4) Design at 5% voids and construct at 5% voids 50/60 gyratatios #2 - WI – (Mihai UofMN thoughts) Clyne (MN-3) – Regressed air void design (32 - WI suggested) 3.0 air voids / asphalt addition Surface characteristics HMA 13 (further study based on results of Phase II). Field validation of cells built for different modes of cracking Clyne (MN-4) 14 (evaluate mechanisms and performance relative to fatigue, thermal, reflective, and #3 - UMN top-down cracking) Cold mix asphalt / Cold in Place (15) (improvements to produce high quality HMA mixes) #4 - FHR Cold Central Plant mix (33 - Mihai) WAPA Tie to 6 discussion Construction and performance of pavement using central plant mixed Clyne (MN-5) 15 7/14/16 bituminous with foamed asphalt (20) #2 - UMN (Eastern states are successfully constructing with these mixes. Evaluate (depends on #6) performance at high and low traffic levels, final surfacing alternatives) Warm mix asphalt (16) (research relative to chemical and foaming technologies, tie to LTPP and NTPEP) 16 #4 - UMN MAPA Performance of warm mix pavements designed and constructed with asphalt foam manifolds (26) 17 Verification of pavement designs using limit strain concept and high modulus layers. Porous HMA pavement rehabilitation options (18) (best practices for rehabilitation of porous pavements). Drop this idea 18 Porous HMA new pavements (19) Low Priority (follow-up to Phase II work, advances in technology, long-term performance)
12 Methods of enhancing compaction (proposed new title) Identify asphalt mix additives that aid in compaction (12) (additives or construction technologies that can be used to achieve higher density in the field) SuperPave 5 Evaluation (33 - IL suggested) Design at 5% voids and construct at 5% voids – 50/60 gyratatios (Mihai – UofMN thoughts) Regressed air void design (32 - WI suggested) 3.0 air voids / asphalt addition #3 – FHR #4 - WI (MN-4) #5 – IL #2 - FHR #1 – UMN #5 – MN #2 - WI Clyne (MN-3) UofNH 13 Surface characteristics HMA (further study based on results of Phase II). 14 Field validation of cells built for different modes of cracking (evaluate mechanisms and performance relative to fatigue, thermal, reflective, and top-down cracking) #3 - UMN Clyne (MN-4) 15 Cold mix asphalt / Cold in Place (15) (improvements to produce high quality HMA mixes) Cold Central Plant mix (33 - Mihai) Construction and performance of pavement using central plant mixed bituminous with foamed asphalt (20) (Eastern states are successfully constructing with these mixes. Evaluate performance at high and low traffic levels, final surfacing alternatives) #4 - FHR WAPA Clyne (MN-5) #2 - UMN (depends on #6) Tie to 6 discussion 7/14/16 16 Warm mix asphalt (16) (research relative to chemical and foaming technologies, tie to LTPP and NTPEP) Performance of warm mix pavements designed and constructed with asphalt foam manifolds (26) #4 - UMN MAPA 17 Verification of pavement designs using limit strain concept and high modulus layers. 18 Porous HMA pavement rehabilitation options (18) (best practices for rehabilitation of porous pavements). Porous HMA new pavements (19) (follow-up to Phase II work, advances in technology, long-term performance) Drop this idea Low Priority