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1. Surface and Uniaxial Electrical Measurements on Layered Cementitious Composites having Cylindrical and Prismatic Geometries
Topic: Chemistry
Published: 7/24/2014
Authors: Robert Spragg, Scott Zachary Jones, Kenneth Alan Snyder, Dale P Bentz, Chiara Villani, Jason Weiss
Abstract: Electrical measurements are becoming a common method to assess the transport properties of concrete. For a saturated homogenous system, the surface resistance and the uniaxial resistance measurements provide equivalent measures of resistivity once g ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915854

2. Activation Energies of High-Volume Fly Ash Ternary Blends: Hydration and Setting
Topic: Chemistry
Published: 7/17/2014
Author: Dale P Bentz
Abstract: Because ready-mixed concrete is placed under a wide variety of environmental conditions, the influence of temperature on the hydration reactions and the accompanying setting (hardening) process is of critical importance. While contractors are general ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914612

3. Anticipating the Setting Time of High-Volume Fly Ash Concretes Using Electrical Measurements: Feasibility Studies Using Pastes
Topic: Chemistry
Published: 7/17/2014
Authors: Dale P Bentz, Kenneth Alan Snyder, Amzaray M Ahmed
Abstract: One common concern limiting the proliferation of high-volume fly ash (HVFA) concrete mixtures is the significant delay in setting that is sometimes encountered in field concrete mixtures. While several methods to mitigate the delayed setting times of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914999

4. Uncertainty in Bogue-Calculated Phase Composition of Hydraulic Cements
Topic: Chemistry
Published: 7/1/2014
Author: Paul E Stutzman
Abstract: The Bogue calculations of cement composition are used for manufacturing process control and cement classification. While it is commonly understood that the Bogue calculations are estimates with potential intrinsic biases, the magnitudes of such bia ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914762

5. Measuring Freeze and Thaw Damage in Mortars Containing Deicing Salt Using a Low Temperature Longitudinal Guarded Comparative Calorimeter and Acoustic Emission (AE-LGCC)
Topic: Chemistry
Published: 6/23/2014
Authors: Yaghoob Farnam, Dale P Bentz, Aaron Richard Sakulich, Daniel Robert Flynn, Jason Weiss
Abstract: Deicing salts are often applied to the surface of pavements and bridge decks in the winter to melt ice; thereby improving safety for the travelling public. In this paper, the influence of NaCl deicing salt on freezing and thawing temperatures of pore ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913946

6. Transport Properties of Fluids near Critical Points
Topic: Chemistry
Published: 6/5/2014
Authors: Jan Vincent Sengers, Richard A Perkins
Abstract: This chapter reviews the currently available information concerning the behavior of transport properties near the vapor-liquid critical point of fluids and fluid mixtures. Special attention is devoted to the behavior of the thermal conductivity which ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913373

7. Measurement of pHT Values of Tris Buffers in Artificial Seawater at Varying Mole Ratios of Tris:Tris·HCl
Topic: Chemistry
Published: 5/20/2014
Author: Kenneth W Pratt
Abstract: Measurements of total pH, pHT, in electrochemical cells without transference are reported for 2 amino-2-hydroxymethyl 1,3-propanediol (,Tris‰) buffers in synthetic seawater (SSW) of salinity 35 at three molality ratios of Tris to Tris,HCl: 0.03:0.05, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914253

8. CVSS Implementation Guidance
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7946
Topic: Chemistry
Published: 4/28/2014
Authors: Joshua M Franklin, Charles Whisner Wergin, Harold Booth
Abstract: This Interagency Report provides guidance to individuals scoring vulnerabilities using the Common Vulnerability Scoring System (CVSS) Version 2.0 scoring metrics. CVSS defines a vulnerability as a bug, flaw, weakness, or exposure of an application, s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915175

9. Preparation of nanocomposite plasmonic films made from cellulose nanocrystals or mesoporous silica decorated with unidirectionally aligned gold nanorods
Topic: Chemistry
Published: 4/11/2014
Authors: Michael Campbell, Qingkun Liu, Aric Warner Sanders, Julian Evans, Ivan I. Smalyukh
Abstract: Using liquid crystalline self-assembly of cellulose nanocrystals, we achieve long-range alignment of anisotropic metal nanoparticles in colloidal nanocrystal dispersions that are then used to deposit thin structured films with ordering features h ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915636

10. Recent advances in vacuum sciences and applications
Topic: Chemistry
Published: 4/9/2014
Authors: Miran Mozetic, Kostya Ostrikov, David Ruzic, Davide Curreli, Uros Cvelbar, Alenka Vesel, Gregor Primc, Manfred Leisch, Karl Jousten, Oleg Malyshev, Jay H Hendricks, laszlo Kover, Alberto Tagliaferro, O Conde, Antonio Silvestre, J Giapintzakis, M Buljan, N Radi?, G Dra?i?, S Bernstorff, H Biederman, O Kyli?n, J Hanu?, S Milo?evi?, A Galtayries, P Dietrich, W Unger, K Stana-Kleinschek, A Drmota?Petri?, J J Pireaux, J W Rogers, M Anderle, M Lehocky, V Sedlarik
Abstract: Recent advances in vacuum sciences and applications are reviewed. Novel optical interferometer cavity devices enable pressure measurements with ppm accuracy. Innovative dynamic vacuum standard allows for pressure measurements with temporal resolution ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914906



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