Dave RettnerPhone: 651/603-6630 Email: drettner@amengtest.com Completed Projects TitleYearReport #Cold Central Plant Recycling (CCPR) – National Road Research Alliance (NRRA)2021NRRA202101 Prevention of Stripping Under Chipseals - Phase II20172017-35 Cold In-Place Recycling (CIR) for Bituminous Over Concrete (BOC)2016N/AAnalysis of Bridge Deck Cracking Data20142014-09 TRS- Bridge Deck Cracking2011TRS1105