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Author: dale bentz

Displaying records 11 to 20 of 185 records.
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11. Influence of Sample Curing Conditions on Internal Curing Benefits Seen in Cementitious Materials
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

12. Best Practices Guide for High-Volume Fly Ash Concretes: Assuring Properties and Performance
Series: Technical Note (NIST TN)
Report Number: 1812
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

13. Viscosity Modifiers to Enhance Early Age Performance and Long Term Durability of Concrete
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

14. Using a Saturation Function to Interpret the Electrical Properties of Partially Saturated Concrete
Published: 8/29/2013
Authors: William Jason Weiss, Kenneth Alan Snyder, Jeffrey W Bullard, Dale P Bentz
Abstract: Electrical properties are frequently measured in the concrete construction industry as a part of mixture qualification and quality control testing. While there are several factors that influence the electrical response of concrete, one of the most i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910938

15. Ternary Blends for Economical and Environmentally Friendly Concretes
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

16. Influence of Internal Curing and Viscosity Modifiers on Resistance to Sulfate Attack
Published: 5/13/2013
Authors: Dale P Bentz, Jeffrey M. Davis, Max A Peltz, Kenneth Alan Snyder
Abstract: Sulfate attack is one of the common degradation mechanisms for concrete in severe environments. While various strategies for minimizing sulfate attack are well recognized, including using an ASTM C150 Type V cement and/or reducing water-to-cementitio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913264

17. A Comparison Study of Portland Cement Hydration Kinetics as Measured by Chemical Shrinkage and Isothermal Calorimetry
Published: 5/1/2013
Authors: Xueyu Pang, Dale P Bentz, Christian Meyer, Gary Funkhouser, Robert Darbe
Abstract: Two different methods of evaluating cement hydration kinetics, namely chemical shrinkage and isothermal calorimetry tests, are used to investigate the early stage hydration of different classes of oilwell cement at various temperatures. For a given c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912433

18. Modeling of the Influence of Transverse Cracking on Chloride Penetration into Concrete
Published: 4/23/2013
Authors: Dale P Bentz, Edward Joseph Garboczi, Yang Lu, Nicos Martys, Aaron Richard Sakulich, William Jason Weiss
Abstract: Concrete service life models have proliferated in recent years due to increased interest in designing infrastructure elements with at least a 75-year service life, along with greater emphasis on life cycle costing in general. While current models con ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911669

19. Measurement Science Needs for the Expanded Use of Green Concrete: Workshop Summary Report
Series: Technical Note (NIST TN)
Report Number: 1783
Published: 2/6/2013
Authors: Kenneth Alan Snyder, Dale P Bentz, Jeffrey W Bullard, Chiara F Ferraris, Nicos Martys, Paul E Stutzman
Abstract: In July 2012, NIST conducted the Green Concrete Workshop to bring together stakeholders from the concrete construction industry and identify critical needs for the expanded use of industrial by- product materials, such as fly ash and slag, in conc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913076

20. Improving Concrete Bridge Decks with Internal Curing
Published: 2/1/2013
Authors: Jason Weiss, Dale P Bentz, Carmelo DiBella
Abstract: Transportation agencies strive to provide durable, long lasting concrete bridge decks. While high performance concrete is frequently desired due to its resistance to chloride ingress and corrosion, these mixtures are often accompanied with an increa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909651



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