Concrete Systems for a 100-Year Design Life Project 2.02 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 […]
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Durability Evaluation of Carbon Fiber Composite Strands in Highway Bridges Project 2.10 Project Summary The objectives of this project are to monitor the structural performance of carbon fiber composite cable (CFCC) strands in the Penobscot Narrows Bridge, a cable-stayed bridge, to evaluate long-term durability, and to assess durability of carbon fiber reinforced polymer (CFRP) strands […]
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Alternative Cementitious Materials (ACMs) For Durable and Sustainable Transportation Infrastructures Project C7.2018 Project Summary Concrete produced with Alternative Cementitious Materials (ACMs) often exhibits superior mechanical performances and lower carbon footprint compared to those produced with Ordinary Portland Cement (OPC). ACMs also allow utilizing high-volume of industrial by-products as the binding materials instead of OPC, thus […]
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High Performance Concrete with Post-Tensioning Shrinking Fibers Project 2.07 Project Summary This research improves upon the technique of reinforcing concrete with dispersed fibers by having the fibers axially shrink after curing to produce a dispersed multi-axial post-tensioned state. Such reinforcing may increase the crack resistance and durability of the concrete. Preliminary benchtop testing with natural […]
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Thermoplastic Composites by 3D Printing and Automated Manufacturing to Extend the Life of Transportation Facilities Project 2.04
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Development and Testing of High/Ultra-High Early Strength Concrete for Durable Bridge Components and Connections Project 2.5 Project Summary The objective of the research project is to enhance the robustness of current high-early strength concrete mixtures and develop mixture design specification of a next generation of high-early strength concrete to enable durable, sustainable and economical efficient […]
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Carbonating Subgrade Materials for In Situ Soil Stabilization Project 2.09 Project Summary Ground improvement is the in situ alteration of the ground’s material properties, with the ultimate goal of strengthening, stiffening, and/or altering drainage characteristics to benefit design, construction, and performance of civil infrastructure. Carbonation is a process by which carbon dioxide (CO2) gas reacts […]
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