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This community features research by faculty members and students in the Department of Civil and Environmental Engineering (CEE) at Washington State University. Faculty members in CEE participate in research projects run through the Center for Environmental Research, Education, and Outreach (CEREO), Composite Materials Engineering Center (CMEC), Institute for Sustainable Design (ISD), Laboratory for Atmospheric Research (LAR), and the State of Washington Water Resources Center (SWRRC). Emphasized research areas include environmental engineering; geotechnical and transportation engineering; hydraulic and water resources; and structural engineering, materials, and resources.
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LARGE EDDY SIMULATIONS OF CANOPY FLOWS OVER COMPLEX TERRAIN
(2019)Forest canopies cover about 30% of the land surfaces some of which are hilly or mountainous. Both complex terrain and forest canopies influence mean flow and turbulence, playing a critical role in affecting momentum and ... -
DEVELOPMENT, CHARACTERIZATION AND MODELING OF ULTRA-HIGH PERFORMANCE CONCRETE (UHPC) WITH LOCALLY AVAILABLE MATERIALS
(2018)Ultra-high performance concrete (UHPC) is a new generation of advanced cementitious materials with superior mechanical properties that far surpass conventional concrete. However, UHPC is expensive and proprietary, and only ... -
CHARACTERIZATION OF CHLORIDE DIFFUSIVITY, MOISTURE DIFFUSIVITY, AND DRYING SHRINKAGE OF MORTAR AS A FUNCTION OF PORE SYSTEM PARAMETERS
(2018)The importance of satisfactory durability performance of cement-based materials (CbM) has been recently recognized. As durability distresses typically involve the transfer of water and ions through the pore system, transport ... -
ANALYZING THE FAILURE MECHANISMS AND DEVELOPING STRENGTH PREDICTION MODELS FOR CONCRETE EXPANSION AND SCREW ANCHORS IN TENSION
(2018)Concrete anchors serve as the connections between structural elements in various applications in concrete structures. This dissertation focused on investigating two popular post-installed mechanical anchors, torque-controlled ... -
ANALYSES OF FUNCTIONAL UNIT AND NORMALIZATION OPTIONS FOR PRESENTATION OF TRANSPORTATION LIFE CYCLE ASSESSMENT RESULTS
(2017)Life cycle assessment (LCA) is a methodology for analyzing the potential environmental impacts of products, processes, and systems. This dissertation develops methods for novel forms of normalization, and preliminarily ... -
THE EFFECTS OF CLIMATE VARIABILITY AND METEOROLOGICAL CONDITIONS ON THE ATMOSPHERIC NITROGEN CYCLE IN THE UNITED STATES
(2017)Human activities have significantly increased reactive nitrogen (N) emissions and atmospheric deposition, causing a range of negative impacts on human and ecosystem health. The controlling factors for amount of N deposition ... -
A Generalized Method to Evaluate Strategies to Improve Indoor Air Quality in Residential Buildings
(2017)Indoor air quality is complicated and has many, often competing variables that impact the resultant concentrations of contaminants in homes. In addition, there are a variety of different strategies available to address ... -
A Multi-Criteria Decision Support Tool for Biorefinery Siting
(2016)Cellulosic and advanced biorefineries face significant challenges in the road to commercialization. Many have failed to reach or maintain commercialized status due to significant upfront construction costs, high feedstock ... -
Hysteretic Response of Steel-Clad, Wood-Framed Shear Walls Under Reverse-Cyclic Loading
(2016)Steel-Clad, Wood-Framed (SCWF) shear walls are used as the main lateral load resisting system in post-frame buildings under wind and earthquake lateral loadings. However, seismic design coefficients have not been developed ... -
Field and Laboratory Measurements of Biomass Burning and Vehicle Exhaust Using a PTR-MS
(2016)The Proton Transfer Reaction Mass Spectrometer (PTR-MS) is a powerful tool for analyzing organic compounds in air and has been applied in field and laboratory applications to assess emissions from biomass burning and ... -
Numerical and Experimental Investigation of Production and Blending Mechanisms of Asphalt Mixtures with Reclaimed Asphalt Pavement
(2016)This study investigated the production and blending mechanisms for asphalt mixtures that contain reclaimed asphalt pavement (RAP). The numerical and experimental methods used in this study can be used to assist asphalt ... -
Evidence for Superoxide Generation in Aqueous Sodium Percarbonate Solution, Effects of Base-Activated Persulfate on Soil Strength, Sodium Persulfate Diffusion Through Consolidometer-Prepared Kaolin Columns
(2016)The generation of superoxide in a sodium percarbonate system was examined and confirmed. Superoxide is a strong nucleophile and reductant with the capability to degrade contaminants recalcitrant to other technologies. The ... -
MICROBIAL BIOFILM IN POROUS SEDIMENTS: EFFECTS ON SOIL BEHAVIOR
(2016)This dissertation describes the results of a study on biofilm formation and its effects on soil behavior. Column experiments stimulating the production of biofilm by various bacteria were performed along with monitoring ... -
USING MICROMETEOROLOGICAL METHODS AND MODELING TO DETERMINE GREENHOUSE GAS BUDGETS OVER AGRICULTURAL SYSTEMS IN THE INLAND PACIFIC NORTHWEST
(2016)Cropping systems can be net sources or net sinks of greenhouse gases (GHGs) depending on climate and management. Agriculture can be a sink for carbon dioxide (CO2) if climate and management conditions are conducive for the ... -
The Economic Feasibility of Pumped Storage Hydropower
(2016)There is little general modeling research available for evaluating new PSH proposed for development from an economic point of view. This modeling framework enables the analyst to evaluate hypothetical pumped-storage within ... -
A MECHANISTIC-EMPIRICAL MODEL FOR TOP-DOWN CRACKING IN ASPHALT PAVEMENT OVERLAY
(2016)This study investigates top-down cracking in the wheel path in asphalt pavement overlay that has been observed increasingly in recent years. It focuses on developing a mechanistic-empirical model to predict top-down cracking ... -
MODELING OF PAVEMENT SUBGRADE BEHAVIOR UNDER MOISTURE VARIATION AND FREEZE-THAW CYCLES
(2016)Very often deformation of pavement subgrade involves soils that are partially saturated. Many of the past constitutive models have limited application to modeling the behavior of such soils as their development was focused ... -
Assessing Carbon and Water Dynamics in Multiple Agricultural Ecosystems in the Inland Pacific Northwest Using the Eddy Covariance Method and the CropSyst-Microbasin Model
(2016)Management practices and climatic conditions have important impacts on carbon and water dynamics in agricultural ecosystems. In addition, future climate projections for the inland Pacific Northwest (iPNW) of the U.S. show ... -
Effects of Oxygen and Nitrate on Mercury Cycling in the profundal Zone of Lakes and Reservoirs
(2015)Methylmercury, a neurotoxin, has been identified as a serious public health concern. To date, effective remediation techniques for preventing and remediating methylmercury contamination have remained elusive, mainly due ... -
DEGRADATION OF HYDROPHILIC AND HYDROPHOBIC CONTAMINANTS IN PERCARBONATE SYSTEMS
(2015)Three topics related to the degradation of hydrophobic and hydrophilic compounds in percarbonate systems were studied. The first chapter provides a literature review and a brief description of the three treatment systems ...