Verification of the Performance of Thermoplastic Plant Mix Additive Used to Produce Bridge Deck Waterproofing Materials

Plant mixed modifier (PMM) have been used for the past 20-years to produce waterproofing asphalt materials for bridge deck applications. These offer significant advantages over conventional polymer modified binders (PMBs) since much high polymer loading can be used in the final material without the risk of storage separation and/or pumping and handling issues associated with these high polymer loads. However, with the advent of Superpave it has become the norm for many specifying agencies to include the Superpave binder specification tests as “performance related” controls for the specification. However, with plant mix additives it is not possible to obtain a sample of the binder in the conventional manner that occurs with the use of Performance Graded (PG) binders thus making this route for quality assessment not feasible. However, it is possible to evaluate mixture performance using a suite of tests that relate to low-temperature cracking, fatigue performance and permanent deformation – thus capturing the same end performance requirements considered in the binder but by testing the mixture. Conceptually, this is better since mix tests should more closely relate to field performance than binder tests. The use of these tests to develop rational specification parameters is discussed for a bridge-deck thermoplastic PMM water proofing material which is used by various state departments of transportation (DOTs) and other agencies.

• Supplemental Notes:
  • The DVD lists the title of this paper as: Verification of Performance of Thermoplastic Plant Mix Additive Used to Produce Bridge Deck Waterproofing Materials.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Rowe, Geoffrey M
  • Blankenship, Phillip B
  • Zuberer, Doug
  • Sharrock, Mark J
• Conference:
  • Transportation Research Board 90th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2011-1-23 to 2011-1-27
• Date: 2011

Language

• English

Media Info

• Media Type: DVD
• Features: Figures; References; Tables;
• Pagination: 13p
• Monograph Title: TRB 90th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Binders; Bridge decks; Cracking; Deformation; Fatigue (Mechanics); Materials; Plant mix; Thermoplastic materials; Waterproofing materials
• Uncontrolled Terms: Performance grade; Polymer modified binders
• Subject Areas: Bridges and other structures; Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01337182
• Record Type: Publication
• Report/Paper Numbers: 11-1246
• Files: TRIS, TRB
• Created Date: Apr 19 2011 7:16AM