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Articles 1 - 2 of 2
Full-Text Articles in Engineering
Mechanical And Transport Properties Of Alkali-Activated Natural Pozzolans As Sustainable Binders, Brittany Radke
Mechanical And Transport Properties Of Alkali-Activated Natural Pozzolans As Sustainable Binders, Brittany Radke
Calvert Undergraduate Research Awards
OPC production accounts for 5 to 7% of the global carbon dioxide (CO2) emissions, contributing to global warming. The desire to reduce CO2 emissions and produce more durable concrete has given impetus to search for new binders. It is suggested that alkali-activated natural pozzolans have the potential for use as a sustainable replacement for OPC in concrete.
The current study presented herein evaluated fresh, mechanical, and transport properties of alkali-activated natural pozzolan mortars containing various concentrations of sodium hydroxide solutions as an alkaline activator. To this aim, alkali-activated natural pozzolan mortars were made with concentrations of sodium …
Las Vegas Strip Odor Remediation, Francell R. Rodriguez, Daniel Hoskins, Guadalupe Gutierrez
Las Vegas Strip Odor Remediation, Francell R. Rodriguez, Daniel Hoskins, Guadalupe Gutierrez
Calvert Undergraduate Research Awards
The project described in our report looks at four alternatives to eliminate odor from the intersection of Las Vegas Blvd and Flamingo Rd: biofiltration, Granulated Activated Carbon (GAC) filtration, nitrate addition and the alternative of doing nothing. The odor is caused mainly by hydrogen sulfide, which escapes from the sewer system in this area. Each alternative was evaluated based on effectiveness, land usage, energy consumption, water and material usage, and cost. Cost was further broken down into initial costs and annual costs, and then a cash flow analysis was performed to evaluate the cost over a 30 year timeframe.
Nitrate …