Design, Constructability Review and Performance of Dual Base Stabilizer Applications

Franco, Samuel; Moss, Steven Phillip; Yuan, Deren; Nazarian, Soheil

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Design, Constructability Review and Performance of Dual Base Stabilizer Applications

2009-01-01
By Franco, Samuel ; Moss, Steven Phillip ; Yuan, Deren ; ...

File Language:

English

Details

Creators:

Franco, Samuel ; Moss, Steven Phillip ; Yuan, Deren ; Nazarian, Soheil
Corporate Creators:

University of Texas at El Paso. Center for Transportation Infrastructure Systems
Corporate Contributors:

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Asphalt Emulsions Calcium Compounds Full-depth Reclamation Mix Design Pavement Base Course Soil Stabilization Specifications
Publication/ Report Number:

FHWA/TX-09/0-5797-1
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas
Edition:

Sept. 1, 2006 –August 31, 2008
Corporate Publisher:

Texas. Department of Transportation
Abstract:

Asphalt emulsion has been used for base course stabilization through full-depth reclamation in a few Texas Department of Transportation (TxDOT) districts. Results from these practices were quite different. The preliminary conclusion from these trials has been that asphalt emulsion may not perform well in the high humidity/high rainfall areas like east Texas. On the other hand, using calcium-based additives to stabilize base courses in road construction has been a common practice in most TxDOT districts. It is expected that the blend of calcium-based additives with asphalt emulsion (dual stabilization) will produce a base which has an optimum combination of strength, stiffness, moisture resistance and flexibility. In this case, the calcium-based stabilizer may reduce the plasticity of the base fines making it a more friable material that accepts well the blending with emulsion. TxDOT has drafted a special specification for the use of asphalt emulsion treatment in road mixing. In this project, the trial version of the TxDOT special specification is evaluated. The output of this research project includes: laboratory test procedure for mix design with dual stabilization, guidelines for the construction of bases with dual stabilization, and results from a series of parametric studies that show which parameters may have significant impacts on the engineering properties of emulsion-treated base materials and on the performance of emulsion-treated bases.
Format:

PDF
Funding:

0-5797
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:e315a6ed51eb85a8ffe5497762a4c761b3d42a2b36d44c7c0fe3a521e85c19a05164cc4c6f22c07661150c40a78f4ae1b52a33bd1814c8f7dac1de065693a97c
Download URL:

https://rosap.ntl.bts.gov/view/dot/88957/dot_88957_DS1.pdf
File Type:

[PDF - 2.04 MB ]

File Language:

English

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