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41. Incorporation of Phase Change Materials in Cementitious Systems via Fine Lightweight Aggregate
Topic: Chemistry
Published: 6/1/2012
Authors: Aaron Richard Sakulich, Dale P Bentz
Abstract: As infrastructure nears the end of its service life, society is facing an unprecedented maintenance crisis. A new technique that may be able to help address this crisis, extending the service life of bridge decks by reducing freeze/thaw damage th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910167

42. Saturation molalities and standard molar enthalpies of solution of alpha-D-xylose(cr) in H2O(l); Standard molar enthalpies of solution of 1,4-beta-D-xylobiose(am), and 1,4-beta-D-xylotriose(am) in H2O(l)
Topic: Chemistry
Published: 5/14/2012
Authors: Robert Nathan Goldberg, Brian E Lang, Bruce Coxon, Stephen R. Decker
Abstract: The saturation molality of alpha-D-xylose(cr) in water was measured by using HPLC and is m(sat) = (8.43 ± 0.42) mol∙kg-1 at the temperature T = 298.15 K. It was also established that the anhydrous form of alpha-D-xylose(cr) is the crystalline ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908256

43. Concrete rheometers
Topic: Chemistry
Published: 5/1/2012
Authors: Chiara F Ferraris, Nicos Martys
Abstract: The scope of this chapter is to introduce the current technology for measuring the rheological properties of concrete. The need to evaluate or assess the flow properties of concrete has resulted in the invention or design and standardization of hundr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907955

44. Total Scattering Cross Section Measurements Using a Dual Faraday Cup with a 5 Micron Aperture
Topic: Chemistry
Published: 4/25/2012
Authors: Scott A Wight, Andrew Robert Konicek
Abstract: Scattering in the variable pressure scanning electron microscope (VPSEM) affects image resolution and the ability to perform quantitative chemical measurements. However, the manner in which the total scattering cross section varies as a function of g ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909004

45. An international assessment of the metrological equivalence of higher-order measurement services for creatinine in serum
Topic: Chemistry
Published: 4/2/2012
Authors: Johanna Camara, Katrice A Lippa, David Lee Duewer, Hugo H. Gasca-Aragon, Blaza Toman
Abstract: Background: The CCQM-K80 Key Comparison directly assessed the equivalence of many of the world’s higher-order value-assigned materials (HOVAMs) for creatinine in human serum. This 2009 international study compared the certified values and uncertaint ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909142

46. Advanced Mass Calibration and Measurement Assurance Program for State Calibration Laboratories (NISTIR 5672, 2012 ed)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 5672 2012
Topic: Chemistry
Published: 3/20/2012
Authors: Georgia L Harris, Kenneth L Fraley
Abstract: This publication provides guidelines for evaluating mass calibrations and for establishing measurement assurance programs in precision mass calibrations laboratories. The NIST Office of Weights and Measures (OWM) will use these guidelines when evalu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910945

47. Critical Sustainability Impacts from Polymeric and Concrete Inputs to Construction
Series: OTHER
Topic: Chemistry
Published: 2/29/2012
Author: Barbara C. Lippiatt
Abstract: This paper analyzes environmentally-extended I-O tables to identify and quantify the sustainability impacts of most concern for broad categories of polymeric and concrete materials used in the U.S. construction industry. The extended I-O tables trace ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910417

48. Reaction Network Governing Diphosphine-Protected Gold Nanocluster Formation from Nascent Cationic Platforms
Topic: Chemistry
Published: 2/16/2012
Authors: John M. Pettibone, Jeffrey W Hudgens
Abstract: We identify the reaction network governing gold monolayer protected cluster (MPC) formation during the reduction of Au(PPh^d3^)Cl and L^u5^ (L^u5^ = 1,5-bis(diphenylphosphino)pentane) in solutions. UV-vis spectroscopy and electrospray ionization mass ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909879

49. Formation and structure of 360 and 540 degree domain walls in thin magnetic stripes
Topic: Chemistry
Published: 2/10/2012
Authors: Youngman Jang, Samuel R Bowden, Mark Mascaro, John Unguris, Caroline Ross
Abstract: 360˚, 540˚ and other complex transverse domain walls have been created in narrow Co wires connected to injection pads by cycling a magnetic field perpendicular to the wire length. The composite walls, formed by impingement of 180˚ tran ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910019

50. Influence of Particle Size Distributions on Yield Stress and Viscosity of Cement-Fly Ash Pastes
Topic: Chemistry
Published: 2/1/2012
Authors: Dale P Bentz, Chiara F Ferraris, Michael A Galler, John Guynn, Andrew Hansen
Abstract: The rheological properties of blended cement-based materials depend strongly on mixture proportions and the characteristics of the components, such as cement and fly ash. In this study, design of experiments is used to investigate the influence of t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906927