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Search Publications by: Paul E. Stutzman (Fed)

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Displaying 76 - 100 of 106

Chemical and Physical Characterization of Poly(p-phenylene benzobisoxazole) Fibers Used in Body Armor

May 1, 2006
Author(s)
Joannie W. Chin, E Byrd, Amanda L. Forster, Xiaohong Gu, Tinh Nguyen, Kirk D. Rice, Walter J. Rossiter Jr, S J. Scierka, John R. Sieber, Paul E. Stutzman, Li Piin Sung
Problems with the performance and durability of body armor based on poly(p-phenylene benzobisoxazole (PBO) fiber became apparent in the summer of 2003, when PBO-based body armor that was less than 8 months was penetrated by a bullet. Mechanical testing of

Developing a More Rapid Test to Assess Sulfate Resistance of Hydraulic Cements

March 16, 2005
Author(s)
Chiara F. Ferraris, Paul E. Stutzman, Max A. Peltz, John A. Winpigler
External sulfate attack of concrete is a major problem that can appear in regions where concrete is exposed to soil or water containing sulfates, leading to softening and cracking of the concrete. Therefore, it is important that materials selection and

Scanning Electron Microscopy Imaging of Hydraulic Cement Microstructure

November 1, 2004
Author(s)
Paul E. Stutzman
Microscopy of portland cement clinker and cementitous materials dates to the first petrographic microscope in the late 19th century. The development of the scanning electron microscope (SEM) with x-ray microanalysis allows the petrographer to study cements

Building Stones of America: 50 Years of the NIST Stone Test Wall

October 1, 2004
Author(s)
Paul E. Stutzman, J Raz
In 1880 the Census Office and the National Museum in Washington, DC conducted a study of building stones of the United States and collected a set of reference specimens from working quarries. This collection was merged with the Centennial Collection of US

Building Stones of America: Over 50 Years of the NIST Stone Test Wall.

October 1, 2004
Author(s)
Paul E. Stutzman
In 1880, the Census Office and the National Museum in Washington, D.C., conducted a study of building stones of the United States and collected a set of reference specimens from working quarries. The census that year reported descriptions of producing

Prediction of Cement Physical Properties by Virtual Testing

September 1, 2002
Author(s)
Dale P. Bentz, C Haecker, X Feng, Paul E. Stutzman
Assuring the quality of the massive quantities of cement produced worldwide each year is a daunting task. Currently, the cement industry performs extensive physical testing to assess the quality of their product, resulting in large costs for both materials

Stoichiometry of Slag Hydration With Calcium Hydroxide

April 1, 2002
Author(s)
J M. Richardson, Joseph J. Biernacki, Paul E. Stutzman, Dale P. Bentz
The stoichiometry of the reaction between ground granulated blast furnace slag (GGBFS) having an empirical formula of C 7.d88^ S 7.39 and calcium hydroxide (CH) was investigated. Scanning electron microscopy (SEM) was used to determine the slag consumption

Kinetics of Reaction of Calcium Hydroxide and Fly Ash

August 1, 2001
Author(s)
Joseph J. Biernacki, P J. Williams, Paul E. Stutzman
The alkali activated reaction kinetics of a type-F fly ash with calcium hydroxide (CH) and water has been investigated at temperatures between 25 and 60 C. Thermogravimetric analysis (TGA) was used to determine CH consumption and production of hydrates

Analysis of Samples Removed from a Damaged Pipeline

April 15, 2001
Author(s)
Paul E. Stutzman
A set of specimens adhered to a pipe, provided by National Safety Transportation Board (NTSB), were examined for microstructure evaluation. The section of a 40.6 cm diameter gasoline pipeline from which the specimens were obtained showed signs of

NIST Centennial Celebration - Crystallographic Highlights

December 1, 2000
Author(s)
Winnie K. Wong-Ng, Alan D. Mighell, Gabrielle G. Long, Leonid A. Bendersky, Vicky L. Karen, J D. Barnes, G L. Gilliland, T Gallagher, Terrell A. Vanderah, R G. Munro, Paul E. Stutzman, H F. McMurdie, S Block, Gasper J. Piermarini, Robert S. Roth, Antonio Santoro, Curt W. Reimann, C R. Hubbard, John W. Cahn, E Prince, D R. Lide, H Ondik, Lawrence P. Cook, T Siegrist, G DeTitta, L Finger, H Evans, E Gabe, G Enright, J T. Armstrong, M Levenson, Laurence C. Chow, Shozo Takagi, M Mathew, Jeffrey W. Lynn, H S. Peiser
NIST has a long history of crystallographic research, and has made significant contributions to the advancement of the fields of crystallography, biology, and materials science. The articles are contributed by scientists from various divisions at NIST, and

Scanning Electron Microscopy in Concrete Petrography

November 1, 2000
Author(s)
Paul E. Stutzman
Scanning electron microscopy has distinct advantages for characterization of concrete, cement, and aggregate microstructure, and in the interpretation of causes for concrete deterioration. Scanning electron microscope imaging facilitates identification of

User's Guide to the NIST Virtual Cement and Concrete Testing Laboratory. Version 1.0

November 1, 2000
Author(s)
Jeffrey W. Bullard, Chiara F. Ferraris, Edward J. Garboczi, Nicos Martys, Paul E. Stutzman
This NISTIR serves as the user's manual for Version 1.0 of the Virtual Cement and Concrete Testing Laboratory (VCCTL). Using the VCCTL, a user may create starting microstructures of cement (gypsum, fly ash, etc.) particles in water, hydrate the

Analysis of CCRL Proficiency Cements 135 and 136 Using CEMHYD3D

August 1, 2000
Author(s)
Dale P. Bentz, X Feng, C Haecker, Paul E. Stutzman
This NISTIR provides experimental and computer modeling results for cements 135 and 136 issued by the Cement and Concrete Reference Laboratory (CCRL) at NIST in January of 2000. The purposes of this report are to characterize the ability of the NIST

Characterization of Coating Microstructure Using Laser Scanning Confocal Microscopy

August 1, 2000
Author(s)
Li Piin Sung, Maria E. Nadal, Paul E. Stutzman, M E. McKnight
The appearance of coating materials depends on the physical attributes of the object's interaction with light. These physical attributes include the light source, the angle of illumination, the viewing angle, and the optical reflectance properties of the

Compositional Analysis of NIST Reference Material Clinker 8486

April 1, 2000
Author(s)
Paul E. Stutzman, Germain Lespinasse, Stefan D. Leigh
Certification of the phase compositions of the NIST Reference Clinkers often is based upon more than one independent method. The current certificate values were established using an optical microscope examination, and additional microscope data taken from

Deterioration of Iowa Highway Concrete Pavements: A Petrographic Study

December 1, 1999
Author(s)
Paul E. Stutzman
Major highway concrete pavements in Iowa have exhibited premature deterioration attributed to effects of ettringite formation, alkali-silica expansive reactions, and to frost attack, or some combination of them. These pavements were constructed in the mid