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Full-Text Articles in Materials Science and Engineering
Comparative Life Cycle Assessment Of Embodied Carbon And Operational Energy Of Different Building Systems, Marilia Hellmeister
Comparative Life Cycle Assessment Of Embodied Carbon And Operational Energy Of Different Building Systems, Marilia Hellmeister
Electronic Theses and Dissertations
Due to human activity, the levels of carbon emissions found in the atmosphere have reached its highest concentration and therefore it is necessary to find solutions to reduce, mitigate and adapt to a more sustainable pattern of development. The substitution of fossil fuel-dependent materials with renewable materials which exhibit lower embodied carbon is an option to be considered in the design phase of a building. Engineered wood product innovations over the past twenty years, coupled with design innovation and building code modifications have demonstrated their viability in multi-story construction (18 stories). The goals of this project are to 1) estimate …
Yield And Mechanical Properties Of Veneer From Maine-Grown Eastern Spruce And Balsam Fir, Marshal Bertrand
Yield And Mechanical Properties Of Veneer From Maine-Grown Eastern Spruce And Balsam Fir, Marshal Bertrand
Electronic Theses and Dissertations
This research focused on the utilization of Maine Eastern spruce and balsam fir for veneer production. Maine currently has no manufacturers of or products using structural veneer. The diversification of markets for Maine’s softwoods has been identified as a route to increase the resilience of the forest-based economy. Veneer production technology has improved significantly since the last look at Maine spruce veneer (1969), justifying the reinvestigation of Maine spruce-fir veneer. The objective of this research was to provide information on the yield of processing veneer and the quality of said veneer. A sample size of 37 Eastern spruce and 38 …
Non-Destructive Evaluation Of Concrete Using Electrical Resistivity And Ultrasonic Wave Propagation, Justin Harris
Non-Destructive Evaluation Of Concrete Using Electrical Resistivity And Ultrasonic Wave Propagation, Justin Harris
Electronic Theses and Dissertations
With the intent to investigate the relationship between concrete physical properties and non-destructive evaluation techniques (NDE), several experiments were performed. Specimens were made at varying geometries using a range of different concrete mixes under several different curing conditions. These specimens were subjected to a combination of electrical resistivity and ultrasonic wave propagation measurements. One part of this study investigated determining the orientation of steel fibers using electrical resistivity. This resulted in the fabrication of a four-probe square device with the potential capabilities of determining fiber orientation. The other part of this research applied ultrasonic wave propagation via through-transmission along with …