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Author: Christopher White

Displaying records 1 to 10 of 73 records.
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1. An accelerated exposure and testing apparatus for building joint sealants
Published: 9/24/2013
Authors: Christopher C White, Donald Lee Hunston, Kar Tean Tan, John W Hettenhouser, Jason D. Garver
Abstract: The design, fabrication and implementation of a computer-controlled exposure and testing apparatus for building joint sealants are described in this paper. This apparatus is unique in its ability to independently control and monitor temperature, rela ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908022

2. Statistical Prediction of Sealant Modulus Change due to Outdoor Weathering
Published: 9/24/2013
Authors: Christopher C White, Kar Tean Tan, Donald Lee Hunston, Adam L Pintar, James J Filliben
Abstract: Recently a statistically based model has been created to predict the change in modulus for a sealant exposed to outdoor weathering. The underlying high precision data supporting this model was obtained using the NIST SPHERE (Simulated Photo degrada ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913982

3. Service Life Prediction for Sealants
Published: 8/27/2012
Authors: Christopher C White, Donald Lee Hunston, Kar Tean Tan
Abstract: Previous industry consensus postulated that four elements of the weather: Temperature, Humidity, Ultraviolet Radiation, and Mechanical loading were responsible for the majority of the changes observed in sealants exposed to outdoor weathering. The N ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908741

4. A systematic approach to the study of accelerated weathering in building joint sealants
Published: 5/1/2012
Authors: Christopher C White, Donald Lee Hunston, Kar Tean Tan, James J Filliben
Abstract: An accurate service life prediction model is urgently needed for building joint sealants to reduce the enormous cost associated with long-term field weathering. A stepping stone to the success of this effort is the precise control of environmental va ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908740

5. Transitory Temperatures of Organic-Film Coated Specimens under Outdoor Exposure
Published: 3/2/2012
Authors: William C. Thomas, Christopher C White, Walter Eric Byrd
Abstract: A mathematical model is presented and validated for predicting the temperature of thin polymeric films bonded to substrate materials. The National Institute of Standards and Technology provided specimen temperature and simultaneous weather data for t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907109

6. A test method for monitoring changes during durability tests on building joint sealants
Published: 2/8/2012
Authors: Christopher C White, Donald Lee Hunston, Kar Tean Tan
Abstract: The durability of building joint sealants is generally assessed using a descriptive methodology involving visual inspection for defects. It is widely known that this methodology has many inherent limitations and is only qualitative in nature. A new ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908739

7. Service Life Prediction for Sealants
Published: 9/29/2011
Authors: Christopher C White, Donald Lee Hunston, Kar Tean Tan, James J Filliben
Abstract: Previous industry consensus postulated that four elements of the weather: Temperature, Humidity, Ultraviolet Radiation, and Mechanical loading were responsible for the majority of the changes observed in sealants exposed to outdoor weathering. The N ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908778

8. LABORATORY ACCELERATED AND NATURAL WEATHERING OF STYRENE-ETHYLENE-BUTADIENE-STYRENE (SEBS) BLOCK COPOLYMER: ACCELERATION AND CORRELATION
Published: 3/23/2011
Authors: Kar Tean Tan, Christopher C White, David J. Benatti, Deborah L Stanley, Donald Lee Hunston
Abstract: Indoor accelerated and outdoor field weathering of styrene-ethylene-butadiene-styrene block copolymer have been studied by Fourier transform infrared (FTIR) spectroscopy. In the indoor accelerated experiments, specimens are exposed to ultraviolet-vis ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904698

9. Summer Undergraduate Research Fellowships (SURF) at the National Institute of Standards and Technology
Published: 3/15/2011
Authors: Joseph J Kopanski, Richard L Steiner, Lisa Jean Fronczek, Christopher C White, Chiara F Ferraris
Abstract: We recruit students from underrepresented groups and at Colleges and Universities with limited on-campus opportunities for research experience. We strive to provide the highest quality and challenging undergraduate research experience by involving st ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908434

10. Design, Fabrication and Implementation of Thermally-Driven Outdoor Testing Devices for Building Joint Sealants
Published: 2/23/2011
Authors: Christopher C White, Kar Tean Tan, Emmett P O'Brien, Donald Lee Hunston, R. S. Williams
Abstract: The paper describes the development, implementation and testing of two thermally driven outdoor exposure instruments. These devices are unique in their ability to impose thermally driven strain while monitoring the resulting stress and displacement f ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905467



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