SEDL / STP / STP1348-EB / STP12857S

Effectiveness of Highway Maintenance Treatments Used in Texas

Syed, IM
Graduate Assistant Research, and Associate Professor, Texas A&M University, College Station, TX

Freeman, TJ
Engineering Research Associate, Texas Transportation Institute, College Station, TX

Smith, RE
Graduate Assistant Research, and Associate Professor, Texas A&M University, College Station, TX

Pages: 15    Published: Jan 1998

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Abstract

The Supplemental Maintenance Effectiveness Research Program (SMERP) was designed to study more closely the types of maintenance treatments typically used in Texas, and it allowed the contractor to use local materials if desired. The treatments constructed in the SMERP study were asphalt rubber chip seal, polymer modified emulsion chip seal, latex-modified asphalt chip seal, conventional asphalt chip seal, and a micro-surfacing treatment. The goal for the SMERP experiment is to establish the cost effectiveness of typical and promising maintenance treatments used in Texas to prolong the life of asphalt pavements. The data collected were converted into the Pavement Condition Index (PCI) and performance curves were developed. This paper discusses the development of these performance curves.