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Now showing items 11-20 of 22
The influence of high quantity of fly ash on reducing the expansion due to ASR in the presence of alkalis
(Texas A&M University, 2000)
A testing program was devised to study the role of high volume fly ash (HVFA) in reducing the expansion caused by alkali-silica reaction (ASR). A series of modified ASTM C 1260 tests were performed, where the replacement ...
Assessment of older driver understanding of certain traffic control devices in Texas
(Texas A&M University, 2000)
The purpose of this research was to assess older Texas drivers on their understanding of nine traffic control devices and identify the devices that are misunderstood by people 65 years and older. Additionally, older ...
Reliability as a measure of transportation system performance
(Texas A&M University, 2000)
This investigation involved a comparative analysis to assess the quantitative and qualitative characteristics of seven previously proposed methods of measuring travel time reliability. For each method, reliability was ...
Neuro-fuzzy control of an MDOF building with a magnetorheological damper using acceleration feedback
(Texas A&M University, 2000)
Parameter specification of a fuzzy inference system (HS) with the aid of artificial neural networks allows the creation of complex, multi-dimensional models that are computationally efficient and numerically robust. An ...
Photolysis of RDX and HMX in aqueous and organic solvents
(Texas A&M University, 2000)
Direct photolysis of high explosives (HEs) is one of the most promising alternative methods for HE disposal. The procedure is fast and safe because it accomplishes almost a complete mineralization of Hes in a very short ...
Modeling the effects of low flow augmentation by discharge from a wastewater treatment plant on dissolved oxygen concentration in Leon Creek, San Antonio, Texas
(Texas A&M University, 2000)
A GIS-based hydrological/water quality model called Non Point Source Model (NPSM) was used to simulate various physical, chemical and biological processes taking place in the Leon Creek Watershed, near San Antonio, Texas. ...
Fatigue analysis of single-span and two-span solid-sawn, creosote-treated southern pine railroad bridge stringers
(Texas A&M University, 2000)
The purpose of this study is to assess the performance and reliability of existing timber bridges that have been subjected to heavy axle load (HAL) operations. Specifically, the study focuses on the behavior of a single-span ...
Laboratory measurements of the temporal and cross-shore variation of the wave-induced bed stress
(Texas A&M University, 2000)
Detailed laboratory measurements of horizontal velocity above a rough, fixed, impermeable slope were made to determine the effect of varying wave conditions on the shear stress in the swash zone. The research involved the ...
A decision process framework: selecting strategies for rehabilitation of rigid pavements subjected to high traffic volumes
(Texas A&M University, 2000)
Concrete pavements, underdesigned for today's levels of traffic, are deteriorating rapidly. Maintenance, rehabilitation, and reconstruction activities (MRR) have become more widespread and costly. State highway agencies ...
Cracking in reinforced concrete bent caps
(Texas A&M University, 2000)
The objective of this research program was to determine the causes of cracking in the cantilever portion of multi-column reinforced concrete bent caps that exist within the Texas Department of Transportation bridge inventory. ...