Civil Engineering Commons^™

Synthesis And Characterization Of Carbon Sequestering Calcium Carbonate Cement, Mohammad Jobaer Uddin

UNF Graduate Theses and Dissertations

The cement industry is the second-largest manufacturing emitter of CO₂, and the manufacture and placement of concrete accounts for 7-8% of anthropogenic CO2 emissions. There is increasing pressure on the cement industry to develop a sustainable cement to support rapid global urban development without the associated emissions of cement production. The calcination reaction required to manufacture Portland cement is the prime source of emissions, so eliminating the release of CO₂ liberated during calcination of limestone provides an excellent opportunity to produce a more sustainable cement. Calcium carbonate (CaCO₃) cement is a novel alternative, which can …

Preliminary Design And Analysis Of A Wave Energy Converter With Electromagnetic Induction, Laura Fernandez De Valderrama

UNF Graduate Theses and Dissertations

As the energy demand increases with the constantly increasing population, as well as the effort to replace conventional fossil fuels with cleaner sources of energy, ocean energy has emerged as a potential global resource. The ocean contains an enormous amount of energy that has not been exploited yet, although efforts have augmented during the past decades.

The overall purpose of this research is to design, model, and analyze, a wave energy converter (WEC) prototype to contribute to the current research in this field. This particular work represents the first stage of the research process in which the ultimate goal is …

Investigation Of Expedient, Cost Effective And Sustainable Soil Stabilization For Tactical Vehicles Using Surfactant-Induced Soil Stabilization (Siss), Joshua Sasser

UNF Graduate Theses and Dissertations

Surfactant-induced soil stabilization (SISS) is a new method for soil stabilization whereby anionic surfactants and alkaline earth metals are introduced to a soil matrix. This research served as a preliminary study into SISS’ suitability as a temporary soil stabilization method that could be used to improve wheeled vehicle traction during amphibious type naval operations conducted on a beach head.

Beach sand specimens were treated with sodium dodecyl sulfate (SDS; aka sodium lauryl sulfate) and calcium chloride using two methods: hand mixing in testing cylinders and surface percolation in bench scale sandboxes. Treated cylinders were tested for unconfined compressive strength (UCS) …