Field and laboratory investigations for Full Depth Reclamation projects Page: 53
This report is part of the collection entitled: Texas State Publications and was provided to The Portal to Texas History by the UNT Libraries Government Documents Department.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
CHAPTER 6
SAMPLING AND MIXTURE DESIGN OF BUSINESS (US) 289
SUMMARY
In coordination with the Dallas District, TTI researchers evaluated Business (US) 289 in Collin
County from FM 255 to SH 289. The primary distress on this pavement is severe longitudinal
cracking with faulting. Since the most severely distressed locations were typically between 100
to 750 ft long, this investigation focused on maintenance options that could be applied to the
problem locations. Current maintenance practices of milling and overlaying do not provide a
long-term solution; often, the problems re-occur in 1 to 2 years. Long-term solutions must
address the root cause of the problem, which is a lack of edge support. In some cases a slip plane
may also exist; any edge repairs should go beyond the depth of the failure plane. Based on the
existing pavement structure, three maintenance options should be considered. One option is a
partial full depth repair; the other two options are methods that maintenance forces could employ
to improve lateral edge support. On this project, no lab testing was conducted; this project
primarily served as a brainstorming session to identify potential options that maintenance forces
could perform to get the district's feedback on the ideas.
CURRENT PAVEMENT CONDITION
Figure 6.1 shows the current pavement condition, where the primary distress is longitudinal
cracking with edge faulting.Figure 6.1. Pavement Distress on Business (US) 289.
EXISTING PAVEMENT STRUCTURE
A GPR and coring program revealed a thick pavement structure, with 27 in. of thickness above
the subgrade. Figure 6.2 shows the field coring in progress, and Figure 6.3 illustrates the typical
existing pavement structure, which consists of:53
_ . 7
-v
5_ .
-- ..,-It mi 4807 ft
_ -- ...
- mh,. .lo.
.,._ _EZ
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Matching Search Results
View two pages within this report that match your search.Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Sebesta, Stephen; Scullion, Thomas & Estakhri, Cindy K. Field and laboratory investigations for Full Depth Reclamation projects, report, March 2011; College Station, Texas. (https://texashistory.unt.edu/ark:/67531/metapth303679/m1/67/?q=%222008~%22: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.