Project 2.02: Concrete Systems for a 100-Year Design Life

Concrete Systems for a 100-Year Design Life Project 2.2 Project Summary The overall objective is to develop a suite of highly durable concrete systems suitable for a range of transportation infrastructure applications, given the range of constituent availability (e.g. appropriate aggregates, supplementary cementitious materials), conventions for structural details, and typical New England exposure conditions ranging […]

March 1, 2020

Project C09.2019: A New Method of Determining Payment for In-Place Concrete with Double- Bounded Compressive Strength Pay Factors

A New Method of Determining Payment for In-Place Concrete with Double-Bounded Compressive Strength Pay Factors Project C9.2019 Project Summary The Vermont Agency of Transportation (VTrans) currently uses a lower acceptance limit on 28-day concrete compressive strength (CCS) of 4,000 psi for acceptance of in-place concrete in its construction projects. Over time, to mitigate risk, the […]

April 1, 2020

Project 3.10: Assessment and optimization of double CT bridge girder sections with longitudinal precast decks

Assessment and Optimization of Double Ct Bridge Girder Sections With Longitudinal Precast Decks Project 3.10 Project Summary This project focuses on the extension of novel, fiber-reinforced polymer tub girder (CT girder) sections to incorporate precast concrete deck panels. This will extend the application of this new bridge technology by modularizing construction, optimizing the use of […]

July 1, 2020

Project 4.10: Road Salt Impact Assessment (Safety Study)

Road Salt Impact Assessment (Safety Study) Project 4.10 Project Summary The proposed study supports a project sponsored by Maine DOT titled as “Road Salt Impact Assessment.” Winter weather and maintenance treatments have significant impact on highway safety and operations. Understanding the safety impact of these factors directly influence decisions on diminishing maintenance funds, and cost-benefit […]

August 15, 2020

Project 3.14: FRP-Concrete Hybrid Composite Girder Systems: Web Shear Strength and Design Guide Development

FRP-Concrete Hybrid Composite Girder Systems: Web Shear Strength and Design Guide Development Project 3.14 Project Summary UMaine recently developed and commercialized, in partnership with AIT Bridges, a novel, fiber-reinforced polymer (FRP) composite bridge girder. This project will assess the shear strength of foam-core webs of the girders using a combined experimental and analytical approach. Data […]

August 19, 2020

Project 4.11: Safety Assessment of New England Roadways during the COVID-19 Pandemic

Safety Assessment of New England Roadways during the COVID-19 Pandemic Project 4.11 Project Summary Safety assessment of roadway facilities is a critical task to maintain the system operational efficiency of transportation infrastructure. The comprehensive stay-at-home orders implemented in response to the COVID-19 pandemic have resulted in massive reductions in traffic volumes, especially on major highways. […]

September 15, 2020

Project C20.2020: Advanced Sensing Technologies for Practical UAV-Based Condition Assessment

Advanced Sensing Technologies for Practical UAV-Based Condition Assessment Project C20.2020 Project Summary The problem we are trying to investigate is the synergistic application of unmanned aerial vehicles (UAVs) with active acoustic sensing (AAS) and synthetic aperture radar (SAR) for the underside inspection of bridge decks. The problem is important because that employing such UAV-AAS-SAR system […]

October 1, 2020

Project 2.13: Performance Structural Concrete Optimized for Cost, Durability and Manufacturability

Performance Structural Concrete Optimized for Cost, Durability and Manufacturability Project 2.13 Project Summary The primary goal is to develop prescriptive concrete mix designs that meet modern high- performance durability requirements while being practical to manufacture with New England-sourced materials and suppliers. These new Performance Concrete or High Performance Concrete (HPC) mix designs use graded aggregates, […]

Project 2.12: Evaluation of Processed Glass Aggregate for Utilization in Transportation Projects as A Sand Burrow.

Evaluation of Processed Glass Aggregate for Utilization in Transportation Projects as A Sand Burrow. Project 2.12 Project Summary “Sand borrow” is a sand-like material most commonly used as a subbase under pavements. To provide good drainage and protect the pavement from frost heaves, the sand borrow material is required to have a low content of […]

Project 2.11: Culvert Rehabilitation using 3D Printed Diffusers

Culvert Rehabilitation using 3D Printed Diffusers Project 2.11