You searched on: Author: Jeffrey Davis
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1. The Influence of Calcium Chloride Deicing Salt on Phase Changes and Damage Development in Cementitious Materials
Yaghoob Farnam, Sarah Dick, Andrew Wiese, Jeffrey M. Davis, Dale P Bentz, Jason Weiss
The conventional CaCl2-H2O phase diagram is often used to describe how a calcium chloride behaves when it is used on a concrete pavement undergoing freezing and thawing damage. However, the existence of additional chemical compounds in concrete can a ...
2. Damage Development in Cementitious Materials Exposed to MgCl2 Deicing Salt
Yaghoob Farnam, Andrew Wiese, Dale P Bentz, Jeffrey M. Davis, Jason Weiss
MgCl2 is used in deicing applications due to its capability to depress freezing temperatures to a lower
point than other salts like NaCl. The constituents of concrete (i.e., pores solution, calcium hydroxide,
aluminate phases, and calcium silicat ...
3. Quantifying CD4 receptor protein in two human CD4+ lymphocyte
preparations for quantitative flow cytometry
Meiyao M. Wang, Martin Misakian, Hua-Jun He, Peter Bajcsy, Jeffrey M. Davis, Kenneth D Cole, Illarion V Turko, Lili Wang, Fatima Abbasi
For quantitative flow cytometry, a biological cell reference material with a known biomarker
expression level is needed to transform a linear arbitrary fluorescence intensity scale obtained
with fluorescent microspheres to an antibody bound per c ...
4. Influence of Internal Curing and Viscosity Modifiers on Resistance to Sulfate Attack
Dale P Bentz, Jeffrey M. Davis, Max A Peltz, Kenneth Alan Snyder
Sulfate attack is one of the common degradation mechanisms for concrete in severe environments. While various strategies for minimizing sulfate attack are well recognized, including using an ASTM C150 Type V cement and/or reducing water-to-cementitio ...
5. Modeling Chloride transport in Cracked Concrete: A 3-D image-based microstructure simulation
Edward Joseph Garboczi, Dale P Bentz, Jeffrey M. Davis, Yang Lu
The prediction of the service life of concrete materials is difficult, mainly because of their complex heterogeneous microstructure and their random nature. Studying the presence of cracks in concrete and their effect on chloride transport and reacti ...
6. Using Viscosity Modifiers to Reduce Effective Diffusivity in Mortars
Kenneth Alan Snyder, Dale P Bentz, Jeffrey M. Davis
Three viscosity modifiers (a commercial shrinkage-reducing admixture, a polypropylene
glycol, and cellulose ether) are used to reduce the effective diffusivity of chloride ions through
mortars during a one-year exposure. Two delivery mechanisms ...
7. Detection and Speciation of Brominated Flame Retardants in Consumer Products and Household Dust
Richard D Holbrook, Jeffrey M. Davis, Keana C K Scott, Christopher W Szakal
The ubiquitous presence of brominated flame retardants in humans, biota, and the environment has caused concerns about their toxicity, transformations, and persistence. Polymeric materials, which often are intercalated with include brominated flame ...
8. Pilot Estuarine Mesocosm Study on the Environmental Fate of Silver
Nanomaterials Leached from Consumer Products
Danielle Cleveland, Stephen E Long, Paul L. Pennington, Emily Cooper, Michael H. Fulton, Geoffrey I. Scott, Elijah J Petersen, Timothy M Brewer, Jeffrey M. Davis, Laura J Wood
Although nanosilver consumer products (CPs) now enjoy widespread availability, little work has been done to determine the environmental fate and leaching of silver nanoparticles (AgNPs) from these products. This type of work is crucial, since the lif ...
9. Bridging the Micro to Macro Gap: A New Application for
Milli-probe X-ray Fluorescence
Jeffrey M. Davis, Dale E Newbury, Nicholas W m Ritchie, Edward Paul Vicenzi, Dale P Bentz, Albert J. Fahey
X-ray elemental mapping and x-ray spectrum imaging are powerful microanalytical tools. However, their scope is limited spatially by the raster area of a scanning electron microscope or microprobe. Limited sampling size becomes a significant issue w ...
10. An Examination of Kernite (Na2B4O6(OH)2 , 3 H2O) Using X-ray and Electron Spectroscopies: Quantitative Microanalysis of a Hydrated Low-Z Mineral
Douglas C Meier, Jeffrey M. Davis, Edward Paul Vicenzi
Mineral borates, the primary industrial source of boron, are found in a large variety of compositions. One such source, kernite (Na2B4O6(OH)2 , 3 H2O), offers a panoply of challenges for traditional electron-probe microanalysis (EPMA) ‹ it is hygrosc ...