Campaign: Materials and Construction

Longitudinal Joint adhesive, J Band

J Band is a proprietary product. It is applied to a longitudinal joint before placing the top lift / driving surface. It is place by a special distributor in an 18” wide area at the joint. Both passes of the final wearing surface will be over about 9” of the J Band. This material will greatly reduce longitudinal joint deterioration. Here is a link to a minute video on the product. http://www.roadfabrics.com/videos/ ...more »

Submitted by (@jerry.geib)

Idea Submitted by : Jerry Geib

List your MnDOT Office,District,City, County, Univ. or Other : Office of Materials and Road Research

Idea Champion - Who at MnDOT/LRRB? : Glenn Engstrom

Why is this a priority and what are the benefits for the State/County/City? :

My estimate is about $2.50 / ln ft. This equates to $13,200 / mile or $6,600 / lane mile on a two lane trunk highway. This is a high initial cost solution (vs. the Crafco joint adhesive or rolling options) to the longitudinal joint problem. It may be the most cost effective solution.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Research

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Campaign: Bridge and Structures

Synthesis regarding performance of slipformed barriers and parapets

MnDOT has allowed contractors to use the slipform method of barrier and parapet construction for many years with seemingly good long performance. However, some other surrounding states prohibit the use of slipformed barriers and parapets due to some performance issues, such as local cracks. Water accumulated inside the cracks can cause potential chloride corrosion to the barrier reinforcement. There is also a concern ...more »

Submitted by (@anchen)

Idea Submitted by : An Chen

List your MnDOT Office,District,City, County, Univ. or Other : Iowa State University

Idea Champion - Who at MnDOT/LRRB? : Paul Rowekamp

Why is this a priority and what are the benefits for the State/County/City? :

Barriers and parapets are typically replaced at the same time as the replacement of bridge deck. Premature cracking and failure of the barriers and parapets may require their replacement before the replacement of bridge deck, which incurs additional cost. In addition, barriers and parapets are a critical part of roadway safety. Damaged barriers and parapets can cause safety issue. This study can eliminate potential problems and improve the long-term performance of slipformed barriers and parapets in Minnesota. It has several benefits, including cost savings, increased safety and durability of these structures.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Research

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Campaign: Bridge and Structures

Use of Ground Penetrating Radar Technology for Critical Civil Infrastructure Assessment and Manageme

The research hypothesis is that the ground penetrating radar technology, in combination with other established/emerging NDE technologies (Tetrahertz [THz] imaging, Step Frequency Radar [SFR], Falling Weight Deflectometer [FWD], etc.) could be used to create fused data and visualizations in the context of critical civil infrastructure assessment and management.

Submitted by (@djeisen)

Idea Submitted by : Dr. David Eisenmann

List your MnDOT Office,District,City, County, Univ. or Other : Iowa State University

Idea Champion - Who at MnDOT/LRRB? : Paul Rowkamp

Why is this a priority and what are the benefits for the State/County/City? :

It is anticipated that the proposed study will provide significant insights into the use of GPR-based hybrid/multi sensing technologies for advanced and rapid critical infrastructure assessment and management. Specific recommendations from this work will provide guidance on extending the technology to other similar areas such as railroad inspection, airport pavement evaluation, etc.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : -- Please Choose --

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Campaign: Bridge and Structures

Development of portable devices via rapid image analysis for assessment of sign structures

Sign structures, including overhead signs, high mast light towers and tall traffic signs, play crucial roles in traffic control and the safety enhancement of traveling public. These sign structures, due to high slenderness ratio, are vulnerable to wind-induced fatigue and fracture damage. Therefore, successfully collecting performance data of these sign structures, assessing their conditions and timely maintenance are ...more »

Submitted by (@zhibin)

Idea Submitted by : Drs. Zhibin Lin, Mijia Yang, Jinui Wang and Na Gong

List your MnDOT Office,District,City, County, Univ. or Other : North Dakota State University

Idea Champion - Who at MnDOT/LRRB? : Paul Rowekamp, Jihshya Lin

Why is this a priority and what are the benefits for the State/County/City? :

The proposed technology will address the critical need for effective and rapid methods for timely assessment of sign structures in Minnesota State, and introduce an efficient tool for MnDOT that reduces cost (with eliminated traffic control), man hours and human risk (without climbing high power lines or working alongside traffic). The end products are feasible for customization and optimization, either using the images by integrating commercially available handheld/vehicle-mounted/UAV-mounted video recorders, or being customized as a compacted unit.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Research

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Campaign: Bridge and Structures

Low-Cost Portable Device for Welding Quality Monitoring

Welding is commonly used for connecting metal components in these bridges during fabrication and/or construction. Welding processes require high heating input while various factors, such as shrinkage of weld/parent metal or overheating of joint, vulnerably lead to cracks and other defects on the surface. These defects not only could result in severe cracks and corrosion, but also may ultimately lead to malfunction and ...more »

Submitted by (@zhibin)

Idea Submitted by : Drs. Zhibin Lin, Mijia Wang, Jinhui Wang and Na Gong

Idea Champion - Who at MnDOT/LRRB? : Paul Rowekamp, Jihshya Lin

Why is this a priority and what are the benefits for the State/County/City? :

The proposed technology will address the need for an effective and rapid method for timely welding inspection and maintenance of steel bridges in Minnesota State, and introduce an efficient tool for MnDOT that reduces cost, man hours and human risk. Furthermore, the end product may provide practical tools for steel bridge fabricators, construction and in-service welding inspectors, local and state bridge owners in MnDOT to assist in identifying welding quality in critical locations to meet their needs and to assist in decision making.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Research

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Campaign: Materials and Construction

Optimizing Concrete Mixtures

With increasing environmental regulations, emphasis on lowering carbon footprint, as well as concerns about future availability of supplementary cementitious materials, DOTs are continually seeking ways to lower the use of cementitious materials in concrete pavements. These efforts are supported by national and state research showing that the total cementitious content in paving mixes can be as low as 470 lb/CY, while ...more »

Submitted by (@john.siekmeier)

Idea Submitted by : John Siekmeier

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Materials and Road Research

Idea Champion - Who at MnDOT/LRRB? : Ben Worel

Why is this a priority and what are the benefits for the State/County/City? :

National Road Research Alliance Rigid Team

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Joint MnDOT/LRRB Research

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Campaign: Materials and Construction

Early Opening of Concrete Pavements

The PCC paving industry and many DOTs are often searching for cost-effective, low-risk solutions to reduce the time a conventional PCC pavement is closed for construction or patching without compromising long-term performance. In addition to helping establish a means for determining when a PCC pavement or patch can be opened earliest to traffic, this project will study and monitor the very early-age fatigue damage and ...more »

Submitted by (@john.siekmeier)

Idea Submitted by : John Siekmeier

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Materials and Road Research

Idea Champion - Who at MnDOT/LRRB? : Ben Worel

Why is this a priority and what are the benefits for the State/County/City? :

National Road Research Alliance Rigid Team

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Joint MnDOT/LRRB Research

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Campaign: Materials and Construction

Partial Depth Repair

As concrete pavements age, longitudinal and transverse joints can exhibit signs of distress as a result of traffic loading, climatic variations, materials related issues, and construction defects. Although often only small areas are involved, the joint distress can substantially disrupt traffic flow and increase pavement roughness sacrificing consumer ride comfort. Furthermore, secondary distresses and degradation of ...more »

Submitted by (@john.siekmeier)

Idea Submitted by : John Siekmeier

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Materials and Road Research

Idea Champion - Who at MnDOT/LRRB? : Ben Worel

Why is this a priority and what are the benefits for the State/County/City? :

National Road Research Alliance Preventive Maintenance Team

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Joint MnDOT/LRRB Research

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Campaign: Materials and Construction

Pavement Design Criteria for Recycled Aggregate Base and Large Subbase

Currently many pavement design methods assume that the performance of aggregate base made from recycled materials is similar to the performance of aggregate base made from native materials. Also, the use of 3-6+” subbase materials is being used in some states to provide a more stable construction platform on which to place subsequent pavement layers. The purpose of this project is to measure, and then develop methods ...more »

Submitted by (@john.siekmeier)

Idea Submitted by : John Siekmeier

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Materials and Road Research

Idea Champion - Who at MnDOT/LRRB? : Ben Worel

Why is this a priority and what are the benefits for the State/County/City? :

National Road Research Alliance Geotechnical Team

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Joint MnDOT/LRRB Research

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Campaign: Materials and Construction

Test Methods for Verification of Low-Temperature Cracking Resistance of Asphalt Binders and Mixtures

Low-temperature cracking continues to be the number one distress in Minnesota. While progress has been made in developing fracture mechanics tests to obtain relevant material properties, there is a need to develop simpler test methods and analyses that can be used on a routine basis and at lower costs to verify the properties of asphalt materials used in construction of Minnesota pavements. These test methods are: ...more »

Submitted by (@dave.vandeusen)

Idea Submitted by : Dave Van Deusen; John Garrity

List your MnDOT Office,District,City, County, Univ. or Other : OMRR

Idea Champion - Who at MnDOT/LRRB? : John Garrity

Why is this a priority and what are the benefits for the State/County/City? :

In order for performance testing to be fully implemented in MN quick, reliable test procedures are needed so that construction acceptance decisions in a timely manner.

 

Primary benefits to road owners and industry include improved procedures for specifying and designing asphalt mixtures in light of heightened sustainability requirements and project-specific performance requirements, reduced construction costs, extended pavement life and reduced maintenance costs.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Research

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Campaign: Materials and Construction

Quantifying Benefits of Improved Compaction

Air void content, specifically at longitudinal joints, is well known as a key factor affecting pavement life. There have been multiple studies showing that a conservative estimate of 10% increase in pavement life for every 1% improvement in air void content. MnDOT has required use of core measured air voids on projects for many years to monitor achieved air void content in the field. MRR has begun to catalogue the core ...more »

Submitted by (@kylehoegh)

Idea Submitted by : Shongtao Dai and Kyle Hoegh

List your MnDOT Office,District,City, County, Univ. or Other : Materials and Road Research, Maplewood

Idea Champion - Who at MnDOT/LRRB? : Curt Turgeon

Why is this a priority and what are the benefits for the State/County/City? :

Improving asphalt pavement compaction (specifically at longitudinal joints) is critical to creating longer lasting pavements in State/County/City. This research will assist in these efforts.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Research

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Campaign: Materials and Construction

Compaction Optimization Moisture Performance Test (COMPTest)

A new field moisture measurement device would be built based on prior research, trialed on construction projects, and a draft test standard developed. This new field moisture device would provide a fast and accurate method to determine the optimum moisture for compacting soils without the use of sand cones or the nuclear density gauge. This new field test would determine if the construction site soil moisture is too ...more »

Submitted by (@john.siekmeier)

Idea Submitted by : John Siekmeier

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Materials and Road Research

Idea Champion - Who at MnDOT/LRRB? : Jeff Brunner

Why is this a priority and what are the benefits for the State/County/City? :

Roads last longer when their foundations are built well. Proper compaction of the soil at the correct moisture content is very important. Accurate and fast measurement of moisture during construction has the potential to improve the quality and long term performance of every mile of road constructed by state and local agencies.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Joint MnDOT/LRRB Research

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