Comment Summation Sheet for Sec 1015 (and PDM) Team Leader: Mark Shelton Team Members: Joe Schroer Ken Lane Pat McDaniel Harold Schwartz Attachment Commenter and Number Company Name Comment Action Taken If No Action Taken, Explain Why 1 Bob McGennis, Use ASTM D6084 None AASHTO T301 is technically Koch equivalent to D6084. 1 Ray Gore, Process Acceptable in full No action required. Chemicals 1 Rich Holmgreen, Make our specification the same as None Our values reflect an increasing ConocoPhillips Illinois dosage of polymer, which we feel is adequate to obtain polymer levels at the low end of approximately 3%. 1 Rich Holmgreen, Feels that we don’t need the –28 None We have based our PG grades on ConocoPhillips grades. SHRP recommendations from the Long Term Pavement Performance program. 1 Ron Corun, Wants a pavement life of 15 years for None For the last 10 years we’ve allowed a CITGO Asphalt asphalt containing polymers 15-year life and plan to move to 20 years. 1 Ron Corun, Specifying multiple grades can create None We have based our PG grades on CITGO Asphalt logistical concerns for suppliers. SHRP recommendations from the Long Term Pavement Performance program to obtain rut and cold weather cracking resistance. 2 Dennis Muncy, Recommends waiving the solubility Will call out AASHTO T111 ash test Koch requirement in M320. instead. 2 Dennis Muncy, We should not set the upper PG Will delete the restriction in the PDM Koch temperature limit at 76. that limits the upper temperature to 76. 3 Kevin Suitor, Feels that the asphalt industry will None This issue will have to be resolved by Citgo have a more difficult time competing the pavement team. Also, see with concrete because of the response to Ron Corun and Randy increased cost for modified binders. Canfield’s comments. 4 Mack Roberts Does not recommend any changes to No action required. the proposed specification. 5 Randy Canfield, Has no problem with the technical No action required. Ergon aspects of the proposed specification. 5 Randy Canfield, Would like an estimate as to how We are investigating methods to Ergon much asphalt binder we anticipate develop and estimate, however, using in future years. alternate bidding will affect the accuracy of any estimate. 5 Randy Canfield, Feels that the asphalt industry will None This issue will have to be resolved by Ergon have a more difficult time competing the pavement team. Also, see with concrete because of the response to Ron Corun and Kevin increased cost for modified binders. Suitor’s comments. 6 Roger Brown, Where is the data to justify these None Performance data from Colorado, Pace Const. changes? Alabama and Texas. 6 Roger Brown, The changes will increase mix prices None Data from Illinois, Koch, Citgo verify Pace Const. at least $5.00 per ton. a cost increase per ton of mix of approximately $5.00 at the upper end. 6 Roger Brown, Does department realize there are None We believe that most suppliers will Pace Const. very few suppliers for some of these opt to supply these grades. Both products? Kansas and Illinois specify these grades. 6 Roger Brown, What value is assigned to justify these None An increased life will be realized Pace Const. increased costs? Increase life? from the use of polymer modified binders. The actual value assigned will have to be resolved by the pavement team. 6 Roger Brown, Producers will have to provide None We believe that most suppliers will Pace Const. additional storage because of opt to supply these grades. Both additional grades. Kansas and Illinois specify these grades. As with any new process, there will be some initial costs for equipment passed on through the bidding process. 6 Roger Brown, Producers will have to submit at least None Current MoDOT policy allows grade Pace Const. 25% more job mixes to the lab. changes within a particular mix design. The number of mixtures needed shouldn’t increase due to these specification changes. 6 Roger Brown, Does not have any problem with the No action required. Pace Const. use of modified asphalts… 6 Roger Brown, MoDOT must justify the increased None We believe the increased life offsets Pace Const costs to the taxpaying public and the increased cost. Missouri Legislators. None Dave Yates, MAPA recognizes the benefits of None The actual value assigned will have to MAPA polymer modified binders but thinks be resolved by the pavement team. credit for increased life should taken into account in life cycle cost analysis. 7 Larry Reddick, Mix price will increase 2.5 % to 4.2% No action required. Koch Materials per mix ton which should break even in a matter of months in a life cycle calculation. 8 Joe Schroer, Field Discussion with IDOT indicated a No action required. Office 3.4% increase for addition of polymer and 10.4% increase for one grade increase with polymers.
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