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Fatigue failure and cracking in high mast poles

Description: "This report presents the findings of a comprehensive research project to investigate the fatigue cracking and failure of galvanized high mast illumination poles (HMIP)."
Date: March 2012
Creator: Goyal, Raka; Dhonde, Hemant B. & Dawood, Mina
Item Type: Report

HeatWurx patching at two locations in San Antonio

Description: "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.
Item Type: Report

Pavement repair strategies for selected distresses in FM roadways

Description: "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."
Date: June 2012
Creator: Dessouky, Samer; Oh, Jeong Ho; Yang, Mijia; Ilias,Mohammad; Lee, Sang Ick; Freeman, Tom et al.
Item Type: Report

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

Description: "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
Item Type: Report

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

Description: 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-
Item Type: Report