Persistence of Non aqueous phase liquids (NAPLs) in the subsurface at residual
saturations eventually contributes to undesirable groundwater contamination. Proper
characterization of subsurface NAPL, its location, comp ...
This study investigated the use of radon-222 as an in situ partitioning tracer for
quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface.
Laboratory physical aquifer models (PAMs), field experiments, ...
Radon-222 gas has unique properties allowing it to be used as an indicator for the
presence of organic phase liquids in the saturated zone. It naturally occurs in soils. It is
radioactive, making quantitative detection ...
The reductive dechlorination of chlorobiphenyls in sediment by titanium(III) citrate-reduced vitamin Bus was studied in batch reactors. Long term ampoule studies demonstrated reductive dechlorination of sediment-sorbed 2 ...
Assessment of an existing bridge is needed when the structure exhibits signs of distress.
Assessment practices require refinement in the calculation of loading and resistance while
maintaining an acceptable level of ri ...
Implementation of a small-scale irrigation project in southern Mauritania is analyzed in
this report. The main objective is to demonstrate that small-scale irrigation farming is
the best suited solution for Mauritania' ...
The response of lightweight equipment in structures supported on
resilient-friction-base isolators (R-FBI) subjected to harmonic ground motion and various
earthquake ground motions is examined. The equipment-structure ...
This thesis focuses on shared use lane facilities and road user understanding. Shared use lanes (sharrows) are a common solution for road facilities that are too narrow to accommodate a full bicycle lane and where the lo ...
The use of fly ash as a supplementary cementitious material (SCM) has increased in the
last century due to its various environmental benefits as a recycled product. Within the
last 60 years, it has been found that it c ...
Posting advisory speed signs at sharp horizontal curve sites is a practice well established in the United States. The purpose of these signs is to provide the driving public with a safe speed to negotiate such curves; ho ...
The undermining of bridge foundations can lead to either costly repairs or a bridge
collapse. These foundations must be designed to counter the effects of scour. Current
practice does not allow for accurate estimates o ...
This dissertation presents the results of a research effort conducted to better
understand the seismic performance and analysis of pile-supported wharves. Given the
limited number of well-documented field case historie ...
Base isolation is an alternative seismic design strategy in which the primary structures
and their internal components are uncoupled from the potentially damaging horizontal
components of an earthquake by base isolator ...
The seismic performance of port structures has been well documented following
recent earthquakes, and indicates that port structures are highly susceptible to earthquake-induced
damages. These damages are primarily due ...
Thermal distress in asphalt concrete pavements is a widespread problem around
the world. Thermal cracking can be divided into two modes of distress: low
temperature cracking and thermal fatigue cracking. Low temperatur ...
The research presented here is a study to determine the effect of shear
reinforcement corrosion on the shear capacity in conventionally reinforced
concrete (CRC) bridge elements. A total of 14 CRC beams were tested usi ...
The circular wave basin provides a means of physically modeling the nearshore
without the typical problems associated with end walls. Three different coastal
processes were examined to demonstrate the use of a spiral w ...
A theoretical argument is presented to suggest that engineering curriculum be
designed to develop social capital. Additionally, the value of social capital in the
retention of students in the College of Engineering, an ...