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Buildings & Construction

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Displaying 901 - 925 of 925

Characterization of Composite Microstructure and Damage Using Optical Coherence Tomography

January 1, 1999
Author(s)
Joy Dunkers, C G. Zimba, Kathleen M. Flynn, Donald L. Hunston, R Prasankumar, X Li, J G. Fujimoto
Optical coherence tomography (OCT) is a non-destructive and non-contact technique that images microstructure within scattering media. In this work, the versatility of OCT for non-destructive evaluation is demonstrated through imaging of composite

Optical Coherence Tomography of Glass Reinforced Polymer Composites

January 1, 1999
Author(s)
Joy Dunkers, Richard~undefined~undefined~undefined~undefined~undefined Parnas, C G. Zimba, R C. Peterson, Kathleen M. Flynn, J G. Fujimoto, B E. Bouma
Optical coherence tomography (OCT) is a non-destructive and non-contact technique to image microstructure within scattering media. The application of OCT to highly scattering materials such as polymer composites is especially challenging. In this work, OCT

Multiple Fiber Technique for the Single Fiber Fragmentation Test

March 1, 1998
Author(s)
Chang K. Moon, Walter G. McDonough
The single fiber fragmentation test has been modified by embedding multiple fibers into matrix resin. During testing, we examined the interfacial shear strengths between the fibers and the matrix. In addition, the time-dependent nature of the fragmentation

Workshop on Micromechanics Measurement Technologies for Fiber-Polymer Interfaces

May 1, 1997
Author(s)
Walter G. McDonough, Richard~undefined~undefined~undefined~undefined~undefined Parnas, Gale A. Holmes, Donald L. Hunston
The Polymers Division hosted the Workshop on Micromechanics Measurement Technologies for Fiber-Polymer Interfaces, jointly sponsored by NIST and the Textile Research Institute of Princeton, NJ, on May 28-30, 1997. Fifty researchers from industry, academia

The Economics of New-Technology Materials: A Case Study of FRP Bridge Decking

July 1, 1996
Author(s)
M A. Ehlen, Harold E. Marshall
Many new materials are bing developed from polymers, metals, and ceramics. Industry is beginning to introduce some of these high-performance or new-technology materials in construction and manufacturing applications because the materials have advantages

Influence of Aggregate Properties on Concrete Mechanical Performance

Author(s)
Jussara Tanesi, Dale P. Bentz, Scott Z. Jones, Mengesha Beyene, Haejin Kim, Ahmad Ardani, Paul E. Stutzman
While the influence of paste properties on concrete performance has been extensively studied, that between aggregate characteristics and concrete performance has not been investigated in detail. Based on previous research that demonstrated significant
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