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Full-Text Articles in Engineering

Evaluation Of Waste Express Bag As A Novel Bitumen Modifier, Yuming Lin, Chichun Hu, Sanjeev Adhikari, Chuanhai Wu, Miao Yu Mar 2019

Evaluation Of Waste Express Bag As A Novel Bitumen Modifier, Yuming Lin, Chichun Hu, Sanjeev Adhikari, Chuanhai Wu, Miao Yu

Michigan Tech Publications

With the rapid development of China’s e-commerce and logistics industry, a large number of waste express bags (WEBs) have been produced, which are difficult to recycle. The existing methods of waste express bag disposal often cause severe environmental pollution. It was discovered in this paper that the use of WEBs to modify bitumen could be an environmentally friendly way to recycle WEBs. This study aimed to investigate the feasibility of using WEBs to modify bitumen and promote the performance of WEB-modified bitumen. In order to verify this assumption, a series of basic or rheological experiments were conducted on different dosages …


Evaluation Of Roadway Lighting Practices, Brian K. Howell, William Nicholas Staats, Austin William Obenauf, Jerry G. Pigman Aug 2018

Evaluation Of Roadway Lighting Practices, Brian K. Howell, William Nicholas Staats, Austin William Obenauf, Jerry G. Pigman

Kentucky Transportation Center Research Report

Adequate roadway lighting allows better driver visibility during nighttime conditions. Research studies show that lighted roadways on average experience 28 percent fewer vehicles crashes on all roadway types. Most state DOTs have historically used High-Pressure Sodium (HPS) lights for their roadside lighting programs due to their wide availability and relatively low purchase costs. However, the short lifespan of HPS results in frequent replacement, leading to high life cycle costs. Light-Emitting Diode (LED) lights consume less energy, demonstrate improved performance, and require less overall maintenance due to their longer lifespans. Over time, this translates into maintenance cost savings for stateDOTs. In …


Performance Evaluation Of Brass Breakaway Couplings, Joseph G. Putjenter, Scott K. Rosenbaugh, Karla A. Lechtenberg, Ronald K. Faller, Dean L. Sicking, John D. Reid Dec 2010

Performance Evaluation Of Brass Breakaway Couplings, Joseph G. Putjenter, Scott K. Rosenbaugh, Karla A. Lechtenberg, Ronald K. Faller, Dean L. Sicking, John D. Reid

Nebraska Department of Transportation: Research Reports

No abstract provided.


Forensics And Case Studies In Civil Engineering Education: State Of The Art, Norbert J. Delatte, Kevin L. Rens Aug 2002

Forensics And Case Studies In Civil Engineering Education: State Of The Art, Norbert J. Delatte, Kevin L. Rens

Civil and Environmental Engineering Faculty Publications

This paper reviews the state of the art in the use of forensic engineering and failure case studies in civil engineering education. The study of engineering failures can offer students valuable insights into associated technical, ethical, and professional issues. Lessons learned from failures have substantially affected civil engineering practice. For the student, study of these cases can help place design and analysis procedures into historical context and reinforce the necessity of lifelong learning. Three approaches for bringing forensics and failure case studies into the civil engineering curriculum are discussed in this paper. These are stand-alone forensic engineering or failure case …


Performance Evaluation Of Recycled Pcc Pavement Used As A Crushed Stone Base And Dense Grade Aggregate, Mike Shull, David L. Allen, L. John Fleckenstein, Clark Graves, David Q. Hunsucker Apr 1998

Performance Evaluation Of Recycled Pcc Pavement Used As A Crushed Stone Base And Dense Grade Aggregate, Mike Shull, David L. Allen, L. John Fleckenstein, Clark Graves, David Q. Hunsucker

Kentucky Transportation Center Research Report

Kentucky Highway Investigative Task No. 24, "Recycled Concrete Pavement", (SSP-059-7965) involved the use of Recycled/Crushed Portland Cement Concrete (RPCC) for use as Crushed Stone Base (CSB) on the Thomas More Parkway in Kenton County, Kentucky. The Parkway, which connects Dudley Road to South Loop Road in front of the Thomas More College campus, was the first roadway to be built in Kentucky using recycled Portland Cement Concrete for crushed stone base. The Kentucky Transportation Center was requested to evaluate the material's performance versus the normal limestone CSB and make appropriate recommendations. Both field and laboratory testing were required, along with …


Performance Of A Shrinkage Compensating Deck Concrete (Ky 1974 Bridge Over West Hickman Creek), David Q. Hunsucker Apr 1989

Performance Of A Shrinkage Compensating Deck Concrete (Ky 1974 Bridge Over West Hickman Creek), David Q. Hunsucker

Kentucky Transportation Center Research Report

This report summarizes performance monitoring activities and evaluation in conjunction with the experimental use of shrinkage compensating bridge deck concrete (Class s). Two bridges of similar design but constructed using Class AA concrete were monitored for comparison purposes. due to the absence of significant shrinkage cracking on the comparison bridge decks and the presence of minor shrinkage cracking on the Class S bridge deck, no conclusions were apparent at this time. Further study may quantify the reduction of shrinkage cracking due to the use of shrinkage compensating concrete in bridge decks.