Civil and Environmental Engineering Commons^™

I-65 South Split Continuously Reinforced Concrete Pavement, Tommy E. Nantung

Purdue Road School

Continuously reinforced concrete pavement (CRCP) is constructed with reinforcing steel placed in along the entire length of the pavement. CRCP forms tight transverse cracks to evenly transfer loads without the need of contraction joints. The result is a continuous, smooth-riding pavement surface capable of accommodating heavy traffic loads in a severe environmental condition. First constructed in Indiana more than 75 years ago on US-50, CRCP became popular with the construction of the Interstate Highway system in the 1960s and 1970s. Many sections of interstate and non-interstate highways constructed at that time are still in service today, having outperformed their original …

2014 Road School, Kevin M. Hetrick

Purdue Road School

At the 2014 Road School, this presentation focused on the proposed sliding of the Milton-Madison Bridge, a 15000 ton truss superstructure intended to move laterally 55 feet from a temporary location onto permanent piers. The project was a joint procurement between INDOT and KYTC, with a Design/Build team consisting of Walsh Construction, Buckland and Taylor, and Burgess and Niple performing the slide. The presentation was in early March, with the slide scheduled for later in the month. The slide will be the largest of its kind.

Most Common Errors For Ada Ramp Construction, Stephen G. Metzer Aicp, Pws

Purdue Road School

Curb ramps are essential for persons with disabilities to traverse pedestrian facilities, allowing them to get from street level to the sidewalk. Errors that occur during the construction of curb ramps can result in ramps that are non-compliant with the Americans with Disabilities Act (ADA) guidelines. This presentation will include examples of common sidewalk construction errors and offer ways that project engineers can assess existing ramps to identify cases where additional design assistance may be required.

Drilled Shaft Design & Construction-Integrity Testing Issues, Mir A. Zaheer, David Latka

Purdue Road School

This presentation will provide an overview of the design and construction of drilled shafts in Indiana, including construction monitoring issue, discussion of CSL, PIT and TIP testing, and comparisons with cores taken.

Post-Failure Capacity Of Built-Up Steel Members, Matthew H. Hebdon

Purdue Road School

Mechanically fastened built-up steel members have long been known to possess internal member redundancy and, as a result, multiple load paths which can be exploited to increase their functional life. Internal redundancy provides the ability to resist total member failure in the event of a fracture of an individual component. However, there is little experimental data in the literature regarding post-fracture capacity in terms of strength and subsequent fatigue life. The experimental study currently underway will provide needed information on parameters that affect the ability of built- up members to arrest a fracture as well as the available remaining fatigue …

Ada Prowag Status And Common Issues/Solutions, Stephen G. Metzer Aicp, Pws

Purdue Road School

The Proposed Accessibility Guidelines for Pedestrian facilities in the Public Right-of-Way (aka PROWAG), dated July 26, 2011, went through an extensive public comment period that ended in early 2012. The Access Board anticipates issuing final guidance that will be the enforceable standard for facilities in the public ROW. This presentation will provide the latest status of the guidelines and present common problems and creative solutions.

Tools For Improving Your Workplace, Ray W. Wilson

Purdue Road School

In this fast-paced session, learn eight practical tools that will help you conduct better meetings, gather, analyze and present data about your organization, and experience how a group can use these tools to quickly learn the causes of problems and to decide where to focus effort.

Kitchen Table Meetings: Applying The Golden Rule To Property Owner Outreach, David N. Goffinet, David Pluckebaum

Purdue Road School

Property impacts are unavoidable with most road construction. Rather than the owner’s first experience being a drilling rig pull up in their drive-way, the kitchen table meeting process takes a proactive approach to sitting down in the “safety and comfort” of their home, upfront to discuss the type and timing of activities that will occur during design, property acquisition and construction— reducing the “unknown” in this multi-year process that happens too fast for some and too slowly for others. Learn how this approach has not only resulted in increased project acceptance and perception, but also in valuable knowledge that can …

Determination Of Specific Gravity Of Municipal Solid Waste, Nazli Yesiller, James Hanson, Jason Taylor Cox, Danielle E. Noce

Civil and Environmental Engineering

This investigation was conducted to evaluate experimental determination of specific gravity (G_s) of municipal solid waste (MSW). Water pycnometry, typically used for testing soils was adapted for testing MSW using a large flask with 2000 mL capacity and specimens with 100–350 g masses. Tests were conducted on manufactured waste samples prepared using US waste constituent components; fresh wastes obtained prior and subsequent to compaction at an MSW landfill; and wastes obtained from various depths at the same landfill. Factors that influence specific gravity were investigated including waste particle size, compaction, and combined decomposition and stress history. The …

Bicycle Facilities And The Uptake Of Air Pollution By Active Travelers, Alexander Y. Bigazzi, Miguel A. Figliozzi, James F. Pankow, Wentai Luo, Lorne M. Isabelle

Civil and Environmental Engineering Faculty Publications and Presentations

Outlines the research of urban bicyclists' facilities and the uptake of air pollution by active travelers in urban Portland, OR. Outlines the research goals, beginning data collection methods, intake/uptake, modeling results, conclusions and the next steps for future work with the collected data set of direct uptake measurements.

Shakers - South Union, Kentucky (Sc 1328), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid only for Manuscripts Small Collection 1328. Letters, written by South Union, Kentucky Shaker leaders, to leaders of the Hancock Shaker Society, Pittsfield, Massachusetts, discussing the building of mills and dam, economic conditions, and religious affairs. The original letters are in the Library of Congress.

Is Horizon Sampling More Powerful Than Depth Sampling?, Chris E. Johnson

Civil and Environmental Engineering - All Scholarship

No abstract provided.

A Comparative Study Of The Mechanical Properties, Fracture Behavior, Creep, And Shrinkage Of Chemically Based Self-Consolidating Concrete, Mahdi Arezoumandi, Mark Ezzell, Jeffery S. Volz

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study presents the results of an experimental investigation that compares the mechanical properties, fracture behavior, creep, and shrinkage of a chemically based self-consolidating concrete (SCC) mix with that of a corresponding conventional concrete (CC) mix. The CC and SCC mix designs followed conventional proportioning in terms of aggregate type and content, cement content, air content, water-cementitious materials (w/cm) ratio, and workability. Then, using only chemical admixtures, the authors converted the CC mix to an SCC mix with all of the necessary passing, filling, flowability, and stability requirements typically found in SCC. The high fluidity was achieved with a polycarboxylate-based …

Development And Regional Application Of Sub-Seasonal Remote- Sensing Chlorophyll Detection Models, Carly Adeline Hyatt

Theses and Dissertations

Remote sensing has been used as an effective chlorophyll-a detection method in inland lakes and reservoirs. Concentration estimates of chlorophyll-a approximate the amounts of algae and phytoplankton in a body of water, can indicate the existence of large blooms and high nutrient loading, and can be used as an indicator of water quality. These biomasses pose potential threats to the quality of the water and the local environment by depleting oxygen, influencing the taste of the drinking water and detrimentally affecting aesthetics and recreation. Deer Creek Reservoir exhibited eutrophic tendencies in the early 1990's, caused by phosphorus pollution. This was …

Development Of A Bicycle Level Of Service Methodology For Two-Way Stop-Controlled (Twsc) Intersections, Nathan R. Johnston

Master's Theses

This thesis fills a missing piece in research on multimodal performance measures for traffic on streets and highways. The Highway Capacity Manual (HCM) published by the Transportation Research Board (TRB) provides Level of Service (LOS) methodologies which enable engineers and planners to evaluate the overall performance of roadways and highways based on the physical characteristics of facilities. This allows for the evaluation of those facilities and offers a means for recognizing issues and planning, designing, implementing, and ultimately assessing improvements. Originally, level of service was developed for automotive traffic only, but with recent developments as part of the complete streets …

Stormwater Pollution Treatment Bmp Discharge Structures, Miles F. Simmons, David M. Admiraal

Nebraska Department of Transportation: Research Reports

No abstract provided.

Dynamic Testing Of A Non-Proprietary, High-Tension, Cable End Terminal System, Ronald K. Faller, Dean L. Sicking, Jennifer D. Schmidt, John D. Reid

Nebraska Department of Transportation: Research Reports

No abstract provided.

Effectiveness Study Of Unl's Pneumatic Crack/Joint Preparation Device, Yong Cho, Changbum Ahn

Nebraska Department of Transportation: Research Reports

No abstract provided.

Quantifying And Modeling Stream–Aquifer Interactions In The Elkhorn River Basin, Nebraska, Can Liu

School of Natural Resources: Dissertations, Theses, and Student Research

This study combined statistical analyses, field investigations and numerical groundwater flow modeling to quantify the connectivity between the Elkhorn River and its adjacent aquifers in Nebraska. The Mann-Kendall trend tests were conducted to detect increasing or decreasing tendencies on the time series data of streamflow, which were collected from eighteen gauging stations in the Elkhorn River and its tributaries. Decreasing trends were not found in the annual streamflow data.

Field investigation of streambed hydraulic properties was performed in the Elkhorn River near Winslow and Norfolk. Vertical hydraulic conductivities (K_v) of the shallow streambed sediments were obtained by …

Corrosion-Resistant Glasses For Steel Enamels, Richard K. Brow, Signo Tadeu Dos Reis, Michael L. Koenigstein, Genda Chen

Materials Science and Engineering Faculty Research & Creative Works

A cementitious composite material wherein glass-coated steel rods are positioned in a cementitious matrix. The glass composition for coating the steel reinforcing rods includes between about 33-45 weight percent SiO₂, 13.5-19.5 weight percent B₂O₃, 3.5-4.6 weight percent Al₂O₃, 4.0-13.5 weight percent K₂O, 5.5-15.5 weight percent ZrO₂, 8.6-15.9 weight percent Na₂O, 4.6-5.1 weight percent CaO, 0.6-0.7 weight percent MnO₂, 1.0-1.0 weight percent NiO, and 1.0-1.1 weight percent CoO. The glass composition is typically in compression on the rods at ambient temperatures, has a …

2014 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Directory

Contact information for local agency officials and employees responsible for Indiana’s local road infrastructure.

Bs News March/April

Building Services Engineering

No abstract provided.

Rupture To Rafters To Response: Completing The Loop Of Earthquake Science, Engineering And Policy, Ting Lin

Civil and Environmental Engineering Faculty Research and Publications

No abstract provided.

Tunnel Road Safety: A Look At Older Drivers' Performance And Sight Impairment, Edith Lopez

Master's Theses

In California, there is an observed trend in which collisions cluster in and around tunnels. The break in road continuity created by the tunnels disturbs traffic flow that can lead to collisions. One of the main contrasts between open roads and tunnel roads occurs in lighting. Drivers with sight deficiencies are unable to adapt their sight to the change in the lighting environment and may crash due to misperception of road alignment, vehicle’s speed and other physiological reactions, such as tension. The suspect population group of crashes occurring under the influence of tunnels conditions is older drivers.

The literature suggests …

An Experimental Investigation Of Crumb Rubber Concrete Confined By Fibre Reinforced Polymer Tubes, Osama Youssf, Mohamed Elgawady, Julie E. Mills, Xing Ma

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Due to the known loss of compressive strength experienced by crumb rubber concrete (CRC) compared with conventional concrete, there have been few applications explored to date for the structural use of these materials. This paper describes experimental work conducted to explore the possible future use of CRC for structural columns by evaluating the use of fiber reinforced polymer (FRP) confinement as a means of overcoming the material deficiencies (decreased compressive strength). The results indicated that the use of FRP to confine rubberized concrete effectively negates the decrease in strength and retains the advantages of increased ductility that arise from rubberized …

Agenda: Natural Resource Industries And The Sustainability Challenge, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, University Of Colorado Boulder. The Colorado Law Energy Innovation Initiative

Natural Resource Industries and the Sustainability Challenge (Martz Winter Symposium, February 27-28)

"An International Conference hosted by The Getches-Wilkinson Center for Natural Resources, Energy, and the Environment and The Colorado Law Energy Innovation Initiative."

For more than two decades, sustainability has gained currency as a broad organizing principle for efforts to develop and use energy, natural resources, and the environment in ways that allow society to meet its needs without compromising the ability of future generations to meet their needs. More recently, sustainability has been embraced by businesses across multiple sectors as part of a broader movement of corporate social responsibility. Hardly a day goes by without news of another corporate initiative …

Slides: Comments Of Jeff Bingaman, Jeff Bingaman

Natural Resource Industries and the Sustainability Challenge (Martz Winter Symposium, February 27-28)

Presenter: Jeff Bingaman, former Chair of the Senate Energy and Natural Resources Committee and U.S. Senator from New Mexico

6 slides

Analytical System For Planning Of Infrastructure Rehabilitation (Aspire), Purdue Ect Team

ECT Fact Sheets Archive

ASPIRE stands for Analytical System for Planning of Infrastructure REhabilitation, a decision support system that can be used for all kinds of infrastructure facilities. It is based on a rehabilitation modeling theory developed by Professor Makarand Hastak at Purdue University.

Analyst B: Analysis Of The Utexas1 Passive Linear Surface Wave Dataset, Robb E.S. Moss

Civil and Environmental Engineering

A linear array consisting of 24 1 Hz geophones at 10 m spacing was used to measure the passive surface waves at the UTexas1 site. This paper describes analysis of this dataset using three different methods: ESPAC (extended spatial autocorrelation), f-k (frequency-wavenumber), and ReMi (refraction microtremor). Dispersion curves were developed using each method and the median trends as well as the uncertainty about the medians are compared. The dispersion curves were then individually inverted to estimate shear wave velocity profiles. The inversion results are compared, and a bounded best-estimate shear wave velocity profile is presented. For the site conditions, specific …

Laboratory Study Of The Effect Of Electromagnetic Waves On Airflow During Air Sparging, Atena Najafi, Vahab Bolvardi, Arvin Farid, Jim Browning, Elisa Barney Smith

Civil Engineering Faculty Publications and Presentations

Air sparging is a technique that uses the injection of a gas (e.g., air, oxygen) into the subsurface to remediate saturated soils and groundwater contaminated with volatile organic compounds (VOCs). Contaminant-removal efficiency and air-sparging performance are highly dependent on the pattern and type of airflow. Airflow, however, suffers from air channel formation (i.e., preferential paths for airflow), limiting remediation to smaller contaminated zones. This paper presents the results of experimental work investigating the possibility of controlling and improving airflow patterns through a saturated glass-bead medium using electromagnetic (EM) waves to enhance air sparging. The test setup consists of a resonant …