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51. A note on the critical enhancement of transport properties and correlation length of fluids
Topic: Chemistry
Published: 10/6/2013
Authors: Richard A Perkins, Jan Vincent Sengers
Abstract: The thermal conductivity and viscosity are known to exhibit an enhancement in fluids due to critical fluctuations. We have reviewed procedures proposed in the literature for estimating the correlation length determining the magnitude of these enhance ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914060

52. Influence of Sample Curing Conditions on Internal Curing Benefits Seen in Cementitious Materials
Topic: Chemistry
Published: 9/27/2013
Authors: Michael Golias, Dale P Bentz, Jason Weiss
Abstract: Internal curing uses pre-wetted fine lightweight aggregate (LWA) to supply cementitious systems with water. This increases the hydration of cement and reduces the influence of self-desiccation resulting in concrete with increased compressive strength ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909748

53. Best Practices Guide for High-Volume Fly Ash Concretes: Assuring Properties and Performance
Series: Technical Note (NIST TN)
Report Number: 1812
Topic: Chemistry
Published: 9/18/2013
Authors: Dale P Bentz, Chiara F Ferraris, Kenneth Alan Snyder
Abstract: A best practices guide is developed from a synthesis of recent research on high-volume fly ash (HVFA) concrete mixtures. These best practices can be applied by the concrete construction industry to achieve desired properties and ensure the (high) per ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914225

54. Viscosity Modifiers to Enhance Early Age Performance and Long Term Durability of Concrete
Topic: Chemistry
Published: 9/1/2013
Authors: Dale P Bentz, Kenneth Alan Snyder, Max A Peltz, K H Obla, Haejin Kim
Abstract: The service life distribution of concrete structures typically follows a ,bathtubŠ-shaped function, with a finite probability of early-age failures being followed by a life with a relative low probability of failure that ultimately increases dramatic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909952

55. An Assessment of 25-Hydroxyvitamin D Measurements in Comparability Studies Conducted by the Vitamin D Metabolites Quality Assurance Program
Topic: Chemistry
Published: 8/12/2013
Authors: Mary Bedner, Katrice A Lippa, Susan Shu Cheng Tai
Abstract: Background: The National Institute of Standards and Technology (NIST), in collaboration with the National Institutes of Health Office of Dietary Supplements, established the first accuracy-based program for improving the comparability of vitamin D me ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913070

56. Sensors and Monitoring to Assess Grout and Vault Behavior for Performance Assessments
Topic: Chemistry
Published: 8/12/2013
Authors: Kenneth Alan Snyder, Jason Weiss
Abstract: To support performance assessment (PA) of waste vaults and grout monoliths, the National Institute of Standards and Technology (NIST) has performed a preliminary evaluation of the state-of-the-art of sensors, nondestructive evaluation methods, and an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912401

57. Ternary Blends for Economical and Environmentally Friendly Concretes
Topic: Chemistry
Published: 7/31/2013
Authors: Dale P Bentz, Jussara Tanesi, Ahmad Ardani
Abstract: As sustainability moves to the forefront of trends in construction, concrete mixture proportions must be adjusted and adapted to a new set of economic and environmental demands. While high-volume fly ash concretes have been investigated extensively s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913559

58. SRM 2492 RHEOMETER USER GUIDE FOR GAP VERIFICATION AND TEST PROTOCOL
Topic: Chemistry
Published: 7/17/2013
Authors: Chiara F Ferraris, Jussara Tanesi
Abstract: N/A
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914092

59. Ab initio study of the mechanical and the transport properties of pure and contaminated silver nanowires
Topic: Chemistry
Published: 7/12/2013
Authors: Shmuel Barzilai, Francesca M Tavazza, Lyle E Levine
Abstract: The conductance and mechanical properties of pure and contaminated silver nanowires were studied using density functional theory (DFT) calculations. Several nanowires containing O2 on their surface were elongated along two different directions. All o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913340

60. Trace water vapor analysis in specialty gases: sensor and spectroscopic approaches
Topic: Chemistry
Published: 7/1/2013
Authors: Kristine A Bertness, Mark W. Raynor, Kevin C Cossel, Florian B. Adler, Jun Ye
Abstract: The analysis of water vapor impurity is important in a number of specialty gas applications. However the main driver for the development and advancement of trace H^u2^O analysis techniques has been the microelectronics industry. The International ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911233



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