I 70 Glenwood Canyon Overlay With Trinidad Lake Asphalt/Steel Slag Hot Mix Asphalt

LaForce, Robert

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I 70 Glenwood Canyon Overlay With Trinidad Lake Asphalt/Steel Slag Hot Mix Asphalt

2006-09-01
By LaForce, Robert

File Language:

English

Details

Creators:

LaForce, Robert
Corporate Creators:

Yeh and Associates, Inc.
Corporate Contributors:

Colorado. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Asphalt Additives Asphalt Modifiers Hot Mix Asphalt Longitudinal Joints Mix Design Pavement Performance Performance Tests Polymer Asphalt Slag Steel By Properties Trinidad Asphalt
Publication/ Report Number:

CDOT-DTD-R-2005-13
Resource Type:

Tech Report
Geographical Coverage:

United States ; Colorado
Edition:

Final Report
Corporate Publisher:

Colorado. Department of Transportation
Abstract:

In 2001, CDOT overlaid twelve miles of I 70 in Glenwood Canyon with a unique asphalt mix design that utilized a traditional Performance Graded Binder blended with Trinidad Lake Asphalt (TLA) and traditional aggregate blended with steel slag aggregate. This is the first project where CDOT has incorporated TLA in the mix design. There are many natural deposits of asphalt found around the world; Trinidad Lake is the most famous and has the largest commercial deposit of natural asphalt in the world. This study was designed to evaluate the performance of a pavement containing Trinidad Lake Asphalt blended with a polymer modified asphalt (PG 76-28) in combination with a very hard and angular steel slag under Colorado weather and traffic conditions. Two of three test sections experienced premature failure along the longitudinal construction joint and that failure appears to have been due to inadequate densities along the longitudinal joint rather than due to the mix design. The pavement performed well in all of Test Section 3, and in Test Sections 1 and 2 in areas away from the longitudinal joint.
Format:

PDF
Funding:

10.38
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:2a7372ea8870196aba0f538ace4df531d517d3cb9b446b807d191b982110af45c436b5d256f3203797fd773ada8aa6292d3b21f3bb10a4af84bf208a59560821
Download URL:

https://rosap.ntl.bts.gov/view/dot/93107/dot_93107_DS1.pdf
File Type:

[PDF - 2.26 MB ]

File Language:

English

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