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Pavement repair strategies for selected distresses in FM roadways (open access)

Pavement repair strategies for selected distresses in FM roadways

"Expansive soil is considered one of the most common causes of pavement distresses in FM roadways. Depending upon the moisture level, expansive soils will experience changes in volume due to moisture fluctuations from seasonal variations. The objective of this research was to evaluate existing repair projects on selected FM roadways. Those roadways experienced failures in the form of fatigue and rutting in the wheel path, and longitudinal (faulted) cracking including edge cracking. The causes of those failures were mainly linked to high PI expansive soil and narrow pavement" (from abstract).
Date: June 2012
Creator: Dessouky, Samer; Oh, Jeong Ho; Yang, Mijia; Ilias, Mohammad; Lee, Sang Ick; Freeman, Tom et al.
System: The Portal to Texas History
Performance of lap splices in large-scale column specimens affectedby ASR and/or DEF (open access)

Performance of lap splices in large-scale column specimens affectedby ASR and/or DEF

"This research program conducted a large experimental program, which consisted of the design, construction, curing, deterioration, and structural load testing of 16 large-scale column specimens with a critical lap splice region, and then compared and calibrated models developed in the analytical program with the experimental behavior. Specimens were carefully instrumented both internally and externally to monitor the strain behavior of the concrete and reinforcing steel from specimen construction, curing, deterioration, and final structural load testing."
Date: June 2012
Creator: Bracci, Joseph M.; Gardoni, Paolo; Eck, Kathleen M. & Trejo, David
System: The Portal to Texas History
Implementation of technology for rapid field detection of sulfate and organic content in soils (open access)

Implementation of technology for rapid field detection of sulfate and organic content in soils

This report discusses a protocol using the Veris 3150 for determination of sulfate-rich soils, which has been implemented to two full-scale projects in Dallas and Paris Districts.
Date: March 2012
Creator: Shon, Chang-Seon; Sebesta, Stephen & Scullion, Tom
System: The Portal to Texas History
Fatigue failure and cracking in high mast poles (open access)

Fatigue failure and cracking in high mast poles

Report presenting the findings of a research project to investigate the fatigue cracking and failure of galvanized high mast illumination poles used by the Texas Department of Transportation.
Date: March 2012
Creator: Goyal, Raka; Dhonde, Hemant B. & Dawood, Mina
System: The Portal to Texas History
Texas Flexible Pavements and Overlays: Year 1 Report -- Test Sections, Data Collection, Analyses, and Data Storage System (open access)

Texas Flexible Pavements and Overlays: Year 1 Report -- Test Sections, Data Collection, Analyses, and Data Storage System

"This report provides a documentation of the work completed in Year 1 of the project including the following: 1) Literature review; 2) development of data collection and analysis plans, and 3) field test sections."
Date: June 2012
Creator: Walubita, Lubinda F.; Das, Gautam; Espinoza, Elida; Oh, Jeongho; Lee, Sang Ick; Scullion, Tom et al.
System: The Portal to Texas History
Recommendations for design, construction, and maintenance of bridge approach slabs (open access)

Recommendations for design, construction, and maintenance of bridge approach slabs

Report regarding treatment methods for controlling settlements of approach slabs of new bridge construction. The report is presented in two parts, with the first part concerns the compiling and presentation of documented information while the second part deals with field evaluation of methods to reduce settlement.
Date: May 2012
Creator: Puppala, Anand J.; Archeewa, Ekarut; Saride, Sireesh; Hoyos, Laureano R., 1972- & Nazarian, Soheil, 1955-
System: The Portal to Texas History
HeatWurx patching at two locations in San Antonio (open access)

HeatWurx patching at two locations in San Antonio

"This report documents the placing, cost, and performance of the HeatWurx pavement patching process, which uses infrared heating to make the pavement soft enough to mill and scarify so that it can be mixed with a rejuvenator and pavement millings to form a patch that stays bonded to the surrounding material."
Date: June 2012
Creator: Freeman, Thomas J. & Epps, Jon A.
System: The Portal to Texas History
Comparison and Assessment of Mechanical and Herbicide-Chemical Side-Trimming Methods of Managing Roadside Vegetation by the Texas Department of Transportation (TxDOT) (open access)

Comparison and Assessment of Mechanical and Herbicide-Chemical Side-Trimming Methods of Managing Roadside Vegetation by the Texas Department of Transportation (TxDOT)

This report discusses safety, effectiveness, and economic costs of the mechanical and herbicide-chemical side-trimming methods.
Date: September 2012
Creator: Brennan, Leonard A.
System: The Portal to Texas History
Synthesis of Hydrologic and Hydraulic Impacts : Technical Report (open access)

Synthesis of Hydrologic and Hydraulic Impacts : Technical Report

This report provides guidance towards defining adverse drainage structures for mitigation of hydrologic and hydraulic impacts.
Date: August 2012
Creator: Joseph, John F. & Sharif, Hatim Osman
System: The Portal to Texas History