Showing posts with label Bureau of Research. Show all posts
Showing posts with label Bureau of Research. Show all posts

Monday, December 9, 2019

It all begins with an idea: How research moves Kansas forward



By
Audrey Atkinson
Mallory Aye
Marie Manthe
KDOT Bureau of Research

KDOT helps keep Kansas moving and it is all thanks to research. In fact, many state Departments of Transportation boast that research is the oldest continuous federal highway activity they partake in, and Kansas is no exception. However, at its core, research is not about longevity and legacy, it’s about solving problems. KDOT’s Bureau of Research is dedicated to identifying issues in Kansas transportation, throughout all its aspects, and conducting research to devise solutions for these issues. The Bureau of Research has three central missions:
  • To support and encourage innovation through research.
  • To evaluate problems as they arise and provide timely responses.
  • To serve as an information resource for agency management.

KDOT’s Bureau of Research is fortunate to have staff with expertise in a number of subject areas, and in-house research is performed on a regular basis. Additionally, research for the bureau is conducted by students and faculty from two major universities: The University of Kansas and Kansas State University. Their research collaborations are made possible by the Kansas Transportation Research and New Developments (K-TRAN) Program. 

KDOT also collaborates with other state DOTs, universities and organizations on research problems at the national level through National Cooperative Highway Research Program (NCHRP) projects and participation in Transportation Pooled Fund (TPF) studies.

Our scope of research utilizes a diverse range of scientific fields to address the various issues within transportation including chemistry, engineering and applied physics. Most research projects begin as a simple “problem statement,” a solicitation for research into an observed issue. These problem statements are typically submitted by staff members within KDOT, agency contractors and suppliers or representatives from the academic community. A research period can last anywhere from a few months to several years. 

The results of these projects are then recorded and reported to the Bureau Chief and the project monitor before they are published. After completion of the final report, it must be determined whether the research findings can be implemented.

If implementation will occur, projects are evaluated to develop a justifiable estimate of potential project benefits. These benefits are not just monetary— implementation of research findings contribute toward the preservation of roads and bridges, reduces usage of construction and emergency resources and above all, contributes to the safety of all who use our state’s transportation system.

In the Bureau of Research, we work with our KDOT colleagues and other partners to make sure Kansas has the finest transportation system possible. It doesn’t matter if people travel by car, bus, plane or bicycle; or if they transport goods by train or truck— what matters is that they all reach their destinations safely.

Tuesday, December 20, 2016

KDOT explores use of Kansas volcanic ash in concrete

Pop Quiz: When you are walking on a sidewalk are you walking on cement or concrete?

If you answered concrete, you are correct.

Concrete is the result of cement mixed with aggregate, sand and water.  Cement is the binder that hold everything together.

In an effort to explore using alternative materials in concrete, KDOT’s Bureau of Research explored the possibility of using Kansas volcanic ash as a supplementary cementitious material, or SCMs. SCMs are materials other than cement that are used to bind the mixture to create concrete.  A popular SCM is fly ash which is a waste product of coal. Because industries are switching to natural gas, coal isn’t being used as often and subsequently, a reduction in fly ash is the result.

KDOT primarily uses fly ash in KDOT concrete projects and bridge decks to improve strength and permeability characteristics.
At one time, the Rocky Mountains were volcanic and erupted sending ash into parts of Kansas. Because the ash is still present, KDOT decided to test the ash to see if this was a local resource that could be used.

Unfortunately, the report found that Kansas volcanic ash is not a viable substitute,

“Testing indicated that Kansas volcanic ash has few cementitious properties and as a result, when added to concrete, it has several possible negative effects, including increased bleed, increased set time, negative effect on strength, permeability, and finishing,” the report said.

Rick Kreider, Bureau Chief of the Bureau of Research, said that although Kansas volcanic ash is not an option for a SCM, the in-house research project was still a success because KDOT found that using this substance would not be a suitable solution. 


Image source: http://cornerstonemag.net/