Search
Now showing items 1-10 of 61
Field and Lab Investigations of Prematurely Cracking Pavements
Publisher: American Society of Civil Engineers
Abstract: A forensic study was conducted to identify the cause of the premature cracking on three recently completed projects that were built with the same design. Nondestructive [ground penetration radar, falling weight deflectometer ...
Investigation of a Pavement Premature Failure on a Weak and Moisture Susceptible Base
Publisher: American Society of Civil Engineers
Abstract: An investigation was conducted to determine the root cause of the premature pavement failure. The premature pavement failure occurred in the form of rutting and alligator cracking. Although the affected portion was repaired ...
Slippage Failure of a New Hot-Mix Asphalt Overlay
Publisher: American Society of Civil Engineers
Abstract: A premature pavement overlay failure had occurred only 1 day after it was opened to traffic. Crescent-shaped cracks were intermittently spread over a section about 3 mi in length. Dynamic cone penetrometer results demonstrated ...
Field Experiences with RDD and Overlay Tester for Concrete Pavement Rehabilitation
Publisher: American Society of Civil Engineers
Abstract: Since reflective cracking is related to both the existing pavement condition and the overlay material, appropriate tools are needed to characterize both properties. The rolling dynamic deflectometer (RDD) was employed to ...
Effects of Automation and Transparency on Human Psychophysiological States and Perceived System Performance in Construction Safety Automation: An Electroencephalography Experiment
Publisher: American Society of Civil Engineers
Abstract: Automation technology has experienced explosive growth in recent decades. However, the construction industry, let alone the field of construction safety, is still among the least digitized globally. Although many types of ...
Inspection and Condition Assessment Using Ground Penetrating Radar
Publisher: American Society of Civil Engineers
Abstract: The nondestructive mapping of anomalies and voids under roadway pavements is critical to highway authorities because of the potential loss of support that would lead to safety hazards. 400 MHz ground-coupled penetrating ...
Long-Term Performance of Diamond Grinding
Publisher: American Society of Civil Engineers
Abstract: Diamond grinding (DG) has been used by various districts to improve skid resistance (reduce accidents and fatalities) and improve ride quality [reduce international roughness index (IRI)], with the added benefit of reducing ...
Chemical Oxygen Demand and the Mechanism of Excess Sludge Reduction in an Oxic-Settling-Anaerobic Activated Sludge Process
Publisher: American Society of Civil Engineers
Abstract: A modified activated sludge process, called the oxic-settling-anaerobic (OSA) process, achieved effective reduction in excess sludge production. Its key feature is the insertion of a sludge holding tank in the sludge return ...
Forensic Investigations of Roadway Pavement Failures
Publisher: American Society of Civil Engineers
Abstract: This paper presents three field projects to illustrate the integrated approach to forensic investigations of roadway pavement failures used widely in Texas. In each case, the combined ground-penetrating radar (GPR) and ...
Performance of Transportation Infrastructure
Publisher: American Society of Civil Engineers
CSV
RIS