RSS 1.0Department of Civil and Environmental Engineering (MU)
Civil engineering, considered one of the oldest engineering disciplines, encompasses many specialties. The major ones are structural, water resources, construction, environmental, transportation, and geotechnical engineering. Environmental engineers develop solutions to environmental problems using the principles of biology and chemistry. Many environmental engineers work as consultants, helping their clients to comply with regulations, to prevent environmental damage, and to clean up hazardous sites.
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Analysis and design of reinforced concrete wall systems for blast
(University of Missouri--Columbia, 2018)Building envelope is the first and most critical line of defense for a structure against external explosion. Building envelope can be divided into two categories; structural and non-structural. Non-structural types of ... -
Traffic impact assessment and mitigation strategies for disruptions
(University of Missouri--Columbia, 2018)This dissertation research focuses on modeling traffic conditions affected by disruptive events such as work zones, incidents, and hurricanes. Using a combination of field data and simulation experiments, this research ... -
Exploring the impact of peracetic acid on bacterial regrowth and plasmid release and developing a novel whole-cell biosensor to monitor the expression of quorum sensing genes
(University of Missouri--Columbia, 2018)Peracetic acid (PAA or CH3COOOH) is a promising alternative to chlorine-based disinfectants for water and wastewater treatment due to its strong antimicrobial properties and low disinfection by-product (DBP) formation ... -
Statistical and simulation methods for evaluating stationary and mobile work zone impacts
(University of Missouri--Columbia, 2018)In 2014, nearly 10% of overall congestion on freeways was due to the presence of work zones (WZs), equivalent to 310 million gallons of fuel loss (FHWA, 2017a). In terms of safety, in the US, every 5.4 minutes, a WZ related ... -
Evaluation of stress in concrete using ultrasonic waves
(University of Missouri--Columbia, 2018)This research investigates the use of ultrasonic waves to evaluate the stress and damage in concrete. Tests were conducted on 6 in. x 6 in. x 12 in. plain concrete specimens (f'c = 6,000psi) at different loading stages ... -
TMA (track mounted attenuators) involved work zones safety analysis and modeling, using machine learning to predict crash severity and crash frequency in the state of Missouri
(University of Missouri--Columbia, 2018)When talking about road maintenance safety, it is an unavoidable talking about the TMA usage, as it located in the work zone intended to reduce the damage while crash happened and at the same time protect the related ... -
Variations of disinfection by-product precursors of stream systems in north Missouri watersheds of drinking water supply reservoirs
(University of Missouri--Columbia, 2017)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Dissolved organic matter (DOM) and its potential to form disinfection by-products (DBPs) during water treatment are of great public health concern. The ... -
Roof truss systems under blast loads
(University of Missouri--Columbia, 2017)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Designing roof systems for blast loading is quite complex. Many uncertainties still exist in this vital research area. The typical single degree of ... -
Experimental assessment of advanced thermal imaging for detecting voids in ducts
(University of Missouri--Columbia, 2017)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This research will evaluate the ability of a transient based Infrared Thermography (IRT) technology called the Infrared Ultra Time Domain (IR-UTD) ... -
Dynamic response of cold-formed steel roof trusses subject to blast load
(University of Missouri--Columbia, 2017)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The popularity of cold-formed steel building components has seen rapid growth in recent years due to its low cost, high strength, and ability to ... -
Load and resistance factor design of drilled shafts subjected to lateral loading at service limit state
(University of Missouri--Columbia, 2018)Since 2007, the American Association of State Highway Administration Officials (AASHTO) has made utilization of Load and Resistance Factor Design (LRFD) mandatory on all federally-funded new bridge projects (AASHTO, 2007). ... -
Molecularly imprinted polymers and their application as environmental sensors
(University of Missouri--Columbia, 2017)Molecularly imprinted polymers are specialty polymers with ability of selectively capturing target molecules. They show great potential to be environmental sensors for the detection of specific contaminant. The overall ... -
Correlation of site variability from SASW and CPT measurements
(University of Missouri--Columbia, 2018)Geotechnical site characterization programs are designed to reduce uncertainty and maximize the efficiency of geotechnical design. Ironically, however, many site characterization programs are inefficient themselves as they ... -
Investigation of the effects of dynamic loads on reinforced concrete flat-plate buildings under collapse scenarios
(University of Missouri--Columbia, 2018)During the initial stages of a collapse, failure of the initiating member (i.e. column loss) can cause a dynamic load redistribution in the surrounding members. The ability of the structure to withstand these dynamically ... -
Approaches for comparing the structural characteristics of different representations of transportation systems
(University of Missouri--Columbia, 2018)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Collection and monitoring of locational information has considerably increased over the last decade as the value of location-based data has been realized ... -
Determination of the scale of fluctuation of cone penetration test data obtained from an alluvial site in Missouri
(University of Missouri--Columbia, 2018)To account for uncertainty in geotechnical projects, knowledge of the uncertainties should be understood. Many sources of uncertainties can be reduced with increased sampling and good practices, but due to the nature of ... -
Post-construction verification of hydraulic conductivity of soil in an earthen dam
(University of Missouri--Columbia, 2018)Earthen dams are used throughout the country to hold back flood waters from cities, towns, and farmlands, make reservoirs to supply drinking water, and create lakes for recreational purposes. The hydraulic conductivity of ... -
Calculated versus measured static capacity for two pile types
(University of Missouri--Columbia, 2016)The Missouri Department of Transportation decided to replace two bridges in northeast New Madrid Country, Missouri. The bridges were in service for approximately 50 years and both were founded on driven piles. The bridge ... -
Driving simulator use and calibration for work zone merge sign evaluation
(University of Missouri--Columbia, 2018)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Work zones on highways have the potential to increase crash risk; therefore, efficient and noticeable signs play a critical role in enhancing highway ... -
Iron oxide-graphene oxide nanocompositions as adsorbents
(University of Missouri--Columbia, 2016)Iron oxides and carbon containing materials are recognized for their potential in the water treatment field as adsorbent materials for removing many contaminations such as heavy metals and organic matter. One of these iron ...