Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 256 for “"Laboratory Testing"”.
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Factors Affecting Strength Gain and Development of a Laboratory Testing Procedure
… two different commercial laboratories performed laboratory tests on treated soil, and they produced strikingly different unconfined compression test results. Further, both sets of results are different from test results for similar soils available in the published literature. This situation …
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Enhanced Laboratory Testing and Characterization Related to the Mechanics of Anisotropic Rock
… at greater depths, it is important to use testing methods measuring geomechanical properties with a high degree of accuracy and repeatability. Tensile strength is commonly measured via the indirect tensile strength test, intact elastic components and compressive strength are measured via …
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Tunnels in swelling ground: simulation of 3D stress paths by triaxial laboratory testing
… swelling behaviour in tunnels. A new triaxial testing procedure is developed, which is able to quantify the swelling behaviour of soft rocks and stiff soils. The Caneva Clay is tested both by conventional oedometer swelling tests and by the new triaxial test. The swelling parameters of the clay …
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Microbial CO2 Conversion to Acetic Acid: From Laboratory Testing to an Industrial-Scale Model
L'abstract è presente nell'allegato / the abstract is in the attachment
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Mechanistic service life prediction of rigid pavement joint sealant: a new laboratory testing technique
… A special fixture, attached to a servo-hydraulic testing machine, was designed to transfer applied cyclic shear deflection to a sealant sandwiched between two 51 x 51 x 51 mm portland cement concrete (PCC) cubes at a constant horizontal deflection. The new testing method simulates field conditions …
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Analysis of Laboratory Testing Results and Performance Evaluation of Recycled Asphalt Pavements (Flexural Fatigue, Creep Compliance)
Extensive laboratory testing was conducted to evaluate the fundamental properties of recycled materials. The major laboratory tests included are: repeated beam flexural fatigue, creep compliance, indirect tensile strength, Marshall mixture design and asphalt cement properties.
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Laboratory testing and design of a mill for the treatment of a gold ore from Porcupine, Ontario
Thesis: M.S., Massachusetts Institute of Technology, Department of Mining Engineering and Metallurgy, 1917
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Creating New Value from Laboratory Testing and Services in Value-Based Healthcare: Investigating Data Monetization Strategies from Clinical Laboratories
… in the changing healthcare market. The clinical laboratory is not usually considered a key contributor in value-based healthcare (VBHC) models, yet it is well situated to contribute in meaningful ways due to the nature of laboratory testing, the digitally native environment in which modern labs …
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Laboratory Testing of Process Controls for the Mitigation of Toxic Shock Events at Enhanced Biological Phosphorus Removal Wastewater Treatment Plants
… (WWTP) shocked with chlorine. Three identical, laboratory-scale systems were designed to mimic one train of the Long Creek Water Resources Reclamation Facility (WRRF, Gastonia, NC). The basis of this study is a comparative performance analysis among the three trains; a negative control …
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Assessment of Fracture Resistance of Asphalt Overlays through Heavy Vehicle Simulator and Laboratory Testing: Synthetic Fiber and Rubber Modified SMA Mixes
… Traditionally, these studies have relied only on laboratory testing or nondestructive tests. This dissertation expands the traditional approach by adding full-scale Accelerate Pavement Testing (APT) to a laboratory effort to investigate enhanced asphalt overlays that delay the initiation and …
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Investigation of a method for monitoring stress changes in the burst prone seams of southwestern Virginia
… of a borehole stressmeter is discussed. Laboratory testing. which yielded promising results of the stressmeter (inclusion) is presented along with preliminary field test results. Laboratory testing involved comparison with the results of a two-dimensional finite element model of the …
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Mitigation and Evaluation of Alkali-Silica Reaction (ASR) and Freezing and Thawing in Concrete Transportation Structures
… in concrete. A combination of field and laboratory testing confirms ASR deterioration is exacerbated by exposure to F/T. Laboratory testing indicates an aggregate previously deemed inert to ASR, caused ASR deterioration in several concrete pavement and transportation structures. Existing …
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Stability of Embankment Dams Following Reservoir Drawdown
… on soil plasticity through the results of the laboratory-testing program and stability analyses for 11 embankment dams.
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Subgrade Soil Evaluation for the Design of Airport Flexible Pavements
… in this study are based on a comprehensive laboratory testing conducted with the National Airport Pavement Test Facilities (NAPTF) cohesive subgrade soils. NAPTF full-scale pavement data will be used to validate the concepts and procedures.
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Assessment of sediment and water quality in Sembrong Reservoir, Johor
… nutrient parameters. Before conducting the laboratory testing, sampling process were done involving sediment and water sampling. Six (6) locations for sediment sampling were selected and portable gravity corer was used to get the sediment cores while for water sampling, seventeen (17) …
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Predicting failure behavior of polymeric and asphalt composites using damage models
… validated by comparing the results to referenced laboratory testing performed on IM7/977-2 carbon epoxy composite. The damaged states associated with various stages of loading are presented in this study. This study also predicts the failure behavior of asphalt materials through the use of damage …
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Laboratory Self-Weight Consolidation Testing of Dredged Material Analyzed Using a One-Dimensional Finite Strain Consolidation Method
… in a dredged layer, which can be determined from laboratory testing. The United States Army Corps of Engineers (USACE) suggests using a self-weight consolidation test apparatus to obtain void ratio/effective stress conditions for very low effective stresses. In this paper a modified laboratory …
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Mitigation of early age cracking of concrete for bridge decks
… used for bridge decks on the Illinois Tollway, laboratory testing was performed by CTL Group and the University of Illinois at Urbana-Champaign. Through extensive laboratory testing, results indicate that many mitigation strategies are able to improve early age cracking in concrete for bridge …
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Prevalence of asymptomatic sexually transmitted infections: a retrospective review of screening data from Desmond Tutu HIV Centre clinical trial cohorts from 2012 to 2017, Cape Town
… Routine screening for STI symptoms and testing for Chlamydia, Gonorrhoea, Trichomonas, Syphilis and HIV was performed for all of the studies at screening/enrollment. Results: A total of 639 participants were screened; 411 (64.3%) self-identifying as female, 198 (31%) males, 29 (4.5%) …
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Investigations of an Automated System for Profiling of Serum Constituents in Neonatal Blood Samples
… quite differently from adults with respect to laboratory testing. Although desirable, profiling is not done on neonatal samples because of the very small samples available. It has been the objective of these studies to determine if a multichannel centrifugal analyzer (MCCA), a sample/reagent …
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