A DEMONSTRATION OF STONE MATRIX ASPHALT MIX DESIGNS USING HIGH POLISH VALUE CRUSHED STONE

Historically, the Fort Worth District has used either lightweight aggregate or a crushed gravel from Reeves County, Texas, when a polish value of 35 minimum was required. It appeared to Fort Worth personnel that there was no competition among aggregate producers for this material in spite of the fact that there were listed in the "Rated Source Quality Catalog" at least seven or eight sources that met the requirements. In order to increase awareness of alternate sources of high-polish aggregate among (hot mix) paving contractors, general contractors, aggregate producers, and hot-mix plants, the Fort Worth District Laboratory decided to design a few hot mixes using a variety of aggregate sources. A secondary objective was to demonstrate that special crusher runs generally are not required to achieve the required aggregate gradation for these mixes. The Fort Worth District Lab also decided to introduce at the same time, a hot-mix asphalt concrete concept which was relatively new to Texas, stone matrix asphalt (SMA). This report documents some of the earliest SMA projects in Texas.

  • Corporate Authors:

    Texas Department of Transportation

    Materials and Tests Division, 39th Street and Jackson, Bldg 5
    Austin, TX  United States  78731
  • Authors:
    • Thomas, G L
    • Shover, P
    • Kelly, R
    • Brown, P
  • Publication Date: 1997-10

Language

  • English

Media Info

  • Features: Appendices; Tables;
  • Pagination: 104 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00793324
  • Record Type: Publication
  • Report/Paper Numbers: TX-97/DHT-41,, Research Report DHT-41
  • Files: TRIS, ATRI, STATEDOT
  • Created Date: May 31 2000 12:00AM