Materials and Construction

Materials and Construction

Incorporate Geogrids in MnPAVE Flexible Pavement Designs

Conduct field deflection testing on 15 existing county/state projects and do computer simulations (using existing 3D models) of pavement structures to expand the range of materials and conditions. Perform pavement design simulations to develop the best method of incorporating the new data into the existing layered-elastic analysis (MnPAVE-Flexible) pavement design. Previous MnPAVE simulations suggest simply increasing ...more »

Submitted by (@bruce.tanquist)

Idea Submitted by : Tim Andersen, Steve Henrichs and Bruce Tanquist

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Office of Materials, Pavement Design Section

Idea Champion - Who at MnDOT/LRRB? : Tim Andersen, Pavement Design Engineer

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

Research has demonstrated that geogrids may save money by extending pavement life, reducing the required pavement thickness, or eliminating the need for extensive subgrade excavations. The ability to simulate these improvements in our pavement design procedures will enable designers to quantify the benefits of using geogrid in pavement designs and select the most economical design.

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

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Materials and Construction

Modulus and Dynamic Cone Penetrometer Data Collection for Full-Depth Reclamation Projects

Obtain backcalculated moduli and dynamic cone penetrometer (DCP) results on existing full-depth reclamation (FDR) projects for implementation in MnPAVE-Flexible pavement designs. Determine average modulus values and standard deviation for FDR materials. Evaluate the relationship between DCP and modulus for FDR materials. A predictive model for FDR modulus will provide another tool for pavement designers.

Submitted by (@bruce.tanquist)

Idea Submitted by : Tim Andersen, Steve Henrichs and Bruce Tanquist

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Office of Materials, Pavement Design Section

Idea Champion - Who at MnDOT/LRRB? : Tim Andersen, Pavement Design Engineer

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

The current FDR modulus in MnPAVE is based on very limited data and appears to be overly conservative. We need more data to better represent the current FDR materials in use. Higher confidence in modulus values enables more economical pavement designs.

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

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Materials and Construction

Frost/Heave addition to the MnPAVE Flexible Pavement Design Software

Addition of a frost model added to MnPAVE will allow users to review the pavement layers/design that were selected in MnPAVE and then verify if the pavement layers being considered are frost susceptible and may affect the long term performance over time. Local roads will benefit the most by having this module added to MnPAVE. MnROAD has worked with Sweden (Trafikerket) personnel to compare MnROAD low volume road test ...more »

Submitted by (@ben.worel1)

Idea Submitted by : Ben Worel

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

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

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

Allow MnPAVE users to have a final check before they utilize a select pavement structure/layers. Will you have a potential frost/heave issue before it is built.

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

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Materials and Construction

The Use of Project Category Rules to develop Environmental Product Declarations for Construction

In order to complete the proper documentation of the levels of sustainability achieved with MnDOT concsruction projects, we must first understand the environmental characterizations of the materials we choose. The ready-mix concrete industry, the asphalt paving industry and concrete paving industry have invested in developing Product Category Rules (PCRs) A PCR is an peer reviewed process for documenting the various ...more »

Submitted by (@curt.turgeon1)

Idea Submitted by : Curt Turgeon

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

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

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

Knowledge of impacts of current decisions specifying and selection construction materials for nearly all MnDOT projects.

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

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Materials and Construction

Adjiusting Rings -Design of a Product - Strong, Flexible and Resistant to the Elements

MnDOT uses adjusting rings to set their catch basins and manholes. The plate which governs the placement and use of the adjusting rings is Standard Plate 4026A. When Metro District inspects storm sewers we are discovering the adjusting rings are failing - cracked, concrete removed, crumbling and other failures. Additionally construction reports the rings which are supplied to the construction site appear to be brittle ...more »

Submitted by (@alan.rindels)

Idea Submitted by : Alan Rindels, Senior Engineer Metro Water Resources

List your MnDOT Office,District,City, County, Univ. or Other : Metro District Water Resources

Idea Champion - Who at MnDOT/LRRB? : Alan Rindels and Beth Neuendorf

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

If a more concrete ring can be specified. There will be reduced maintenance and construction costs.

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

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Materials and Construction

Super Air Meter (SAM) Implementation on Concrete Paving Projects

The SAM will give you both the air content and a SAM number. The SAM number correlates to an air void size and spacing. The SAM measures the size and volume of the air void system in the fresh concrete which gives you great insights into the stability of your air void system as well as the impact on strength before the concrete hardens. The SAM would help eliminate the need to take cores and conduct hardened air tests ...more »

Submitted by (@maria.masten)

Idea Submitted by : Maria Masten/Rob Golish

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

Idea Champion - Who at MnDOT/LRRB? : Maria Masten

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

MnDOT has been researching through multi-state pooled funds and concrete testing contracts the validity and use of the Super Air Meter on a limited basis. The implementation of the Super Air Meter will verify the quality of the air void system in regards to freeze-thaw durability in the plastic concrete in as little as 10 minutes. This will give the Agency insight at the time of placement as to the long term performance of the concrete pavement.

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

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Materials and Construction

Cost Effective Left Turn Lane Construction

The addition of left turn lanes on a 2-lane undivided highway greatly improves safety at the intersection. There are many feasible options for widening the pavement to develop the left turn lane. One low-cost option is to saw cut along the existing lane-shoulder line and construct only the new shoulder with the widened section. However, this creates a situation in which thru traffic traverses the longitudinal pavement ...more »

Submitted by (@tim.clyne)

Idea Submitted by : Tim Clyne

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

Idea Champion - Who at MnDOT/LRRB? : Kaare Festvog, MnDOT Metro District Traffic Office

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Transportation Research Synthesis (TRS)

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Materials and Construction

The Purpose and Design of Tying Joints On Stormsewers and Culverts

See Standard Plate 3145. What is the purpose of pipe ties? Does the current design serve the purpose? . Std Plate 3145 has relatively minimal requirements in that it allows a U-bolt, no provision is made for bell of Design 3006 joint, and primer instead of galvanizing is allowed. The Cretex Pipe Tie is similar to the MnDOT Single Connection Tie. It also does no show bell of gasketed pipe joins less than 84” diameter. ...more »

Submitted by (@alan.rindels)

Idea Submitted by : Alan Rindels

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

Idea Champion - Who at MnDOT/LRRB? : Alan Rindels Metro District and MnDOT Bridge Office???

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

The current standard plate pipe ties do not work for strorm sewers with gasketed joints which Metro District uses. Stormsewers are observed with the bottom joint rotated out and thus the pipe ties do not appear to be functioning very well. Is it possible a different design will work better?

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

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