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Now showing items 11-20 of 23
Study examining MDC units couple treating carbohydrate base stream waste and artificial seawater
(2014-05)
Investing the biomass energy production in microbial desalination cells (MDCs) to drive another process like desalination has gained a great attention these days pushing researchers to try to unveil the limiting factors ...
Strategies for compliance with stage 2 Disinfectants and Disinfection Byproducts Rule for surface water treatment facilities in northeastern Oklahoma
(2012-07)
Scope and Method of Study: The Environmental Protection Agency (EPA) recently created new regulations that better protect human health but that also make achieving compliance more difficult for existing water treatment ...
Direct observations on microstructure evolution of cement systems at early ages
(2017-05)
There is limited understanding of the mechanisms or direct measurements of cement paste hydration, as the main component that determines mechanical, durability, and rheology properties of concrete. This dissertation uses ...
Aggregate proportioning for slip formed pavements and flowable concrete
(2015-07)
This is an investigation into developing a relationship between aggregate proportioning and the workability of concrete for slip formed pavements and flowable concrete applications. Workability tests were developed for ...
Determining suction compression index of expansive soils based on non-linear suction-volumetric strain relationship
(2016-12)
Expansive soils have always been problematic in many parts of the United States and the world. This is due to the stresses they exert on buildings' foundations, pavements, and other geotechnical structures. In the United ...
Soil matric suction and active zone depth in Oklahoma
(2017-05)
Soil matric suction is an important parameter in unsaturated soils. The shrink-swell properties of expansive soils is controlled by soil matric suction. Matric suction variations cause volume change in expansive soils, ...
Use of non-destructive x-ray microscopic techniques to study fluid transport in cement-based materials
(2016-12)
Most of the urban infrastructure is made of concrete with a design service life of over 50 years. Unfortunately, many concrete structures suffer from premature deterioration due to durability issues, most commonly caused ...
Anaerobic digestion optimization for enhanced renewable biomethane production
(2011-07)
Scope and Method of Study: The scope of this research project was to operate suspended growth, continuous stirred tank reactor (CSTR) anaerobic digesters at the bench scale level to evaluate improved operation techniques/methods ...
Direct three dimensional observation of the microstructure and chemistry of C3S hydration
(2015-12)
Although portland cement has been used for over a hundred years as the binder in concrete, the basic mechanism of hydration is still not well understood. Progress has been halted for the fact that it is challenging for ...
Development of a new tensile stress model for expansive soils
(2015-12)
The problems associated with drying shrinkage are worldwide, and cause great damage to highways and buildings constructed on expansive soils. Literature review indicates that the development of shrinkage crack is governed ...