Hot Mix Asphalt Technology - January/February 2008 - (Page 20) Warm Mix: By Daniel C. Brown Warm-mix asphalt is generating more avid interest than any other new or imported technology in this industry in recent memory. From coast to coast, dozens of road agencies and contractors are collaborating to do field demonstrations and test warm-mix performance. Virtually all of the demonstrations have been successful thus far. What’s more, Europeans have used warm mix for some 10 years with acceptable results. Warm mix typically uses an additive or process that permits mix production at temperatures of 50 to 100° F below standard hot-mix temperatures of 300 to 350° F. Gone are the blue smoke, fumes, and odor that may be associated with hot mix. Stack gas emissions are even further reduced. Fuel consumption drops by 11 to 30 percent. Workability is improved, so compaction is easier, even with reclaimed asphalt pavement (RAP) in the mix. 20 • Hot Mix Asphalt Technology – JANUARY/FEBRUARY 2008 the Lights are Green There’s more. You may be able to increase the amount of RAP in mixes. Haul distances and the paving season may both be extended. And because the mixes are produced at lower temperatures, the binder may age less in the production process. That factor would reduce thermal cracking and improve long-term durability. There has been some concern with moisture susceptibility, which has not shown up in any of the field trials.
Table of Contents Feed for the Digital Edition of Hot Mix Asphalt Technology - January/February 2008 Hot Mix Asphalt Technology - January/February 2008 Contents Chairman's Commentary President's Perspective A Conversation with the New NCAT Director NCAT Test Track: Real-Time Testing for Real-World Results Warm Mix: The Lights are Green Illinois Tollway Tests RAP in Fast Forwarded Research Big Creek Teams with TxDOT to Pave Using Innovative Asphalt Mix Diamond Achievement Commendation Issues a Call for Quality Calendar of Events CONEXPO-CON/AGG Product Review Index of Advertisers Advertisers.com Hot Mix Asphalt Technology - January/February 2008 Hot Mix Asphalt Technology - January/February 2008 - Hot Mix Asphalt Technology - January/February 2008 (Page Cover1) Hot Mix Asphalt Technology - January/February 2008 - Hot Mix Asphalt Technology - January/February 2008 (Page Cover2) Hot Mix Asphalt Technology - January/February 2008 - Hot Mix Asphalt Technology - January/February 2008 (Page 3) Hot Mix Asphalt Technology - January/February 2008 - Hot Mix Asphalt Technology - January/February 2008 (Page 4) Hot Mix Asphalt Technology - January/February 2008 - Hot Mix Asphalt Technology - January/February 2008 (Page 5) Hot Mix Asphalt Technology - January/February 2008 - Hot Mix Asphalt Technology - January/February 2008 (Page 6) Hot Mix Asphalt Technology - January/February 2008 - Contents (Page 7) Hot Mix Asphalt Technology - January/February 2008 - Contents (Page 8) Hot Mix Asphalt Technology - January/February 2008 - Chairman's Commentary (Page 9) Hot Mix Asphalt Technology - January/February 2008 - President's Perspective (Page 10) Hot Mix Asphalt Technology - January/February 2008 - President's Perspective (Page 11) Hot Mix Asphalt Technology - January/February 2008 - A Conversation with the New NCAT Director (Page 12) Hot Mix Asphalt Technology - January/February 2008 - A Conversation with the New NCAT Director (Page 13) Hot Mix Asphalt Technology - January/February 2008 - A Conversation with the New NCAT Director (Page 14) Hot Mix Asphalt Technology - January/February 2008 - A Conversation with the New NCAT Director (Page 15) Hot Mix Asphalt Technology - January/February 2008 - A Conversation with the New NCAT Director (Page 16) Hot Mix Asphalt Technology - January/February 2008 - NCAT Test Track: Real-Time Testing for Real-World Results (Page 17) Hot Mix Asphalt Technology - January/February 2008 - NCAT Test Track: Real-Time Testing for Real-World Results (Page 18) Hot Mix Asphalt Technology - January/February 2008 - NCAT Test Track: Real-Time Testing for Real-World Results (Page 19) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 20) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 21) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 22) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 23) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 24) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 25) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 26) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 27) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 28) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 29) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 30) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 31) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 32) Hot Mix Asphalt Technology - January/February 2008 - Warm Mix: The Lights are Green (Page 33) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 34) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 35) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 36) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 37) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 38) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 39) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 40) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 41) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 42) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 43) Hot Mix Asphalt Technology - January/February 2008 - Illinois Tollway Tests RAP in Fast Forwarded Research (Page 44) Hot Mix Asphalt Technology - January/February 2008 - Big Creek Teams with TxDOT to Pave Using Innovative Asphalt Mix (Page 45) Hot Mix Asphalt Technology - January/February 2008 - Big Creek Teams with TxDOT to Pave Using Innovative Asphalt Mix (Page 46) Hot Mix Asphalt Technology - January/February 2008 - Big Creek Teams with TxDOT to Pave Using Innovative Asphalt Mix (Page 47) Hot Mix Asphalt Technology - January/February 2008 - Big Creek Teams with TxDOT to Pave Using Innovative Asphalt Mix (Page 48) Hot Mix Asphalt Technology - January/February 2008 - Big Creek Teams with TxDOT to Pave Using Innovative Asphalt Mix (Page 49) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 50) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 51) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 52) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 53) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 54) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 55) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 56) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 57) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 58) Hot Mix Asphalt Technology - January/February 2008 - Diamond Achievement Commendation Issues a Call for Quality (Page 59) Hot Mix Asphalt Technology - January/February 2008 - Calendar of Events (Page 60) Hot Mix Asphalt Technology - January/February 2008 - Calendar of Events (Page 61) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 62) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 63) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 64) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 65) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 66) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 67) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 68) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 69) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 70) Hot Mix Asphalt Technology - January/February 2008 - CONEXPO-CON/AGG Product Review (Page 71) Hot Mix Asphalt Technology - January/February 2008 - Index of Advertisers (Page 72) Hot Mix Asphalt Technology - January/February 2008 - Index of Advertisers (Page 73) Hot Mix Asphalt Technology - January/February 2008 - Advertisers.com (Page 74) Hot Mix Asphalt Technology - January/February 2008 - Advertisers.com (Page Cover3) Hot Mix Asphalt Technology - January/February 2008 - Advertisers.com (Page Cover4)
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