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Search Publications by: Paul E. Stutzman (Fed)

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Displaying 1 - 25 of 212

Certification of Standard Reference Material(R) 114r Portland Cement Fineness

June 6, 2022
Author(s)
Eduarda Votri, Blaza Toman, Paul E. Stutzman
The SRM 114 series for portland cement fineness has been provided by NIST since 1934 for use in calibrating instruments for measuring fineness characteristics of portland cement and other powdered construction materials. SRM 114r is the latest of this

Certification of Standard Reference Material(R) 2686b Portland Cement Clinker

April 12, 2021
Author(s)
N. Alan Heckert, Laura Mundy, Paul E. Stutzman
A new Standard Reference Material® (SRM) for portland cement clinker has been produced for the Office of Standard Reference Materials at the National Institute of Standards and Technology (NIST). The SRM clinkers are intended for use in developing and

Dissolution and Initial Hydration Behavior of Tricalcium Aluminate in Low Activity Sulfate Solutions

January 22, 2020
Author(s)
Alexander Brand, Steven B. Feldman, Paul E. Stutzman, Anton V. Ievlev, Matthias Lorenz, Darren C. Pagan, Sriramya Nair, Justin Gorham, Jeffrey W. Bullard
The effects on cubic tricalcium aluminate (C3A) hydration of alkali or alkaline earth sulfate electrolytes were evaluated by in situ dissolution rate measurements, by ex situ near-surface composition measurements with secondary ion mass spectrometry, and

Performance Testing of Hydraulic Cements: Measuring Sulfate Resistance

May 25, 2018
Author(s)
Chiara F. Ferraris, Paul E. Stutzman, Max A. Peltz
The sulfate resistance of cements used in the construction industry is traditionally assessed by measuring the expansion of a prism of 280 mm (11inch) length and 25 mm (1 inch) square cross section immersed in a sodium sulfate solution for at least one

Enhanced durability of CNT based hierarchical composites subjected to accelerated aging environments.

September 21, 2017
Author(s)
Ajay Krishnamurthy, Donald L. Hunston, Amanda L. Forster, Bharath NMN Natarajan, Sunny Wicks, Paul E. Stutzman, James A. Liddle, Aaron M. Forster, Brian L. Wardle
As carbon nanotube (CNT) based composites are increasingly being identified as viable aerospace materials, it is vital to study their environmental degradation characteristics. In this work, the durability of CNT reinforced hierarchical alumina fiber

Measurement and Modeling Needs for Next-Generation Concrete Binders

July 1, 2017
Author(s)
Jeffrey W. Bullard, Edward J. Garboczi, Paul E. Stutzman, Pan Feng, Alexander S. Brand, John G. Hagedorn, Wesley N. Griffin, Judith E. Terrill
Cementitious binders have become increasingly complex in their variety, mineralogical and chemical compositions, and structure over the past several decades, and there is no sign that the trend will stop or reverse in the future. Strategies for handling

An Improved Basis for Characterizing the Suitability of Fly Ash as a Cement Replacement Agent

June 7, 2017
Author(s)
Tandre Oey, Jason Timmons, Paul E. Stutzman, Jeffrey W. Bullard, Magdalena Balonis, Mathieu Bauchy, Gaurav Sant
Fly ash is a critical yet underutilized material for partial replacement for ordinary portland cement (OPC) in the binder fraction of a concrete. Significant compositional variability, and a lack of rigorous classification methods currently limit fly ash