Wisconsin Transportation Research, 2000

Wisconsin Transportation Research, 2000
Author: Wisconsin. Department of Transportation
Publisher:
Total Pages: 64
Release: 2001
Genre: Highway planning
ISBN:
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This Report to Stakeholders reviews some of our transportation research efforts in Wisconsin during the past four years. A few of these studies are already complete and have made a significant impact on the way we do business. Many of the projects will be finished in the coming months. For all of us interested in Wisconsin's transportation future, the report provides an overview of these diverse and laudable investigations.

Relationship of Air Voids, Lift Thickness, and Permeability in Hot Mix Asphalt Pavements

Relationship of Air Voids, Lift Thickness, and Permeability in Hot Mix Asphalt Pavements
Author: E. Ray Brown
Publisher: Transportation Research Board
Total Pages: 48
Release: 2004
Genre: Pavements, Asphalt
ISBN: 0309088070
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"TRB's National Cooperative Highway Research Program (NCHRP) Report 531: Relationship of Air Voids, Lift Thickness, and Permeability in Hot-Mix Asphalt Pavements provides guidance for hot-mix asphalt pavement construction designed to achieve satisfactory levels of in-place air voids and permeability. This guidance was developed from the findings of a research project that examined the relationship of air voids content to permeability and hot-mix asphalt lift thickness. The full finding of the research were published as NCHRP Web Document 68"--Publisher's description.

Bearing Capacity of Roads, Railways and Airfields

Bearing Capacity of Roads, Railways and Airfields
Author: Andreas Loizos
Publisher: CRC Press
Total Pages: 3209
Release: 2017-07-20
Genre: Technology & Engineering
ISBN: 1351585789
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Bearing Capacity of Roads, Railways and Airfields includes the contributions to the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields (BCRRA 2017, 28-30 June 2017, Athens, Greece). The papers cover aspects related to materials, laboratory testing, design, construction, maintenance and management systems of transport infrastructure, and focus on roads, railways and airfields. Additional aspects that concern new materials and characterization, alternative rehabilitation techniques, technological advances as well as pavement and railway track substructure sustainability are included. The contributions discuss new concepts and innovative solutions, and are concentrated but not limited on the following topics: · Unbound aggregate materials and soil properties · Bound materials characteritics, mechanical properties and testing · Effect of traffic loading · In-situ measurements techniques and monitoring · Structural evaluation · Pavement serviceability condition · Rehabilitation and maintenance issues · Geophysical assessment · Stabilization and reinforcement · Performance modeling · Environmental challenges · Life cycle assessment and sustainability Bearing Capacity of Roads, Railways and Airfields is essential reading for academics and professionals involved or interested in transport infrastructure systems, in particular roads, railways and airfields.

Introduction to Unmanned Aircraft Systems, Second Edition

Introduction to Unmanned Aircraft Systems, Second Edition
Author: Douglas M. Marshall
Publisher: CRC Press
Total Pages: 1944
Release: 2015-10-26
Genre: Political Science
ISBN: 113802693X
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The proliferation of technological capability, miniaturization, and demand for aerial intelligence is pushing unmanned aerial systems (UAS) into the realm of a multi-billion dollar industry. This book surveys the UAS landscape from history to future applications. It discusses commercial applications, integration into the national airspace system (NAS), System function, operational procedures, safety concerns, and a host of other relevant topics. The book is dynamic and well-illustrated with separate sections for terminology and web- based resources for further information.

Investigation of Electromagnetic Gauges for Determining In-place HMA Density

Investigation of Electromagnetic Gauges for Determining In-place HMA Density
Author:
Publisher:
Total Pages: 98
Release: 2007
Genre: Asphalt
ISBN:
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Density is an important component of hot-mix asphalt (HMA) pavement quality and long-term performance. Insufficient density of an in-place HMA pavement is the most frequently cited construction-related performance problem. This study evaluated the use of electromagnetic gauges to nondestructively determine densities. Field and laboratory measurements were taken with two electromagnetic gauges-a PaveTracker and a Pavement Quality Indicator (PQ1). Test data were collected in the field during and after paving operations and also in laboratory on field mixes compacted in the lab. This study revealed that several mix-and project-specific factors affect electromagnetic gauge readings. Consequently, the implementation of these gauges will likely need to be done utilizing a test strip on a project- and mix-specific basis to appropriately identify an adjustment factor for the specific electromagnetic gauge being used for quality control and quality assurance (QC/QA) testing. The substantial reduction in testing time that results from employing electromagnetic gauges rather than coring makes it possible for more readings to be used in the QC/QA process with real-time information without increasing the testing costs.