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You searched on: Author: chiara ferraris Sorted by: date

Displaying records 1 to 10 of 96 records.
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1. Testing of Cementitious Materials Using a Dynamic MEMS Micro Rheometer
Published: 5/18/2016
Authors: Yong Sik Kim, Nicholas G Dagalakis, Chiara F Ferraris
Abstract: Incompatibility of cementitious materials with admixtures often requires time consuming testing. Usually, several mixtures need to be prepared either using concrete or paste to determine the optimum high range water reducer dosage (HRWRA) and type. T ...

2. Calibration of rheometers for cementitious materials
Published: 5/16/2016
Authors: Chiara F Ferraris, Nicos Martys, William L George, Edward Joseph Garboczi, Alex Olivas
Abstract: The calibration of rheometers to determine the rheological properties of cement based materials ranging from cement paste to concrete cannot be done using standard oils as they are cost prohibitive and do not possess sufficient granularity to test sl ...

3. Design of a 1 DOF MEMS motion stage for a parallel plane geometry rheometer
Published: 12/31/2015
Authors: Yong Sik Kim, Nicholas G Dagalakis, Chiara F Ferraris, Svetlana Avramov-Zamurovic1
Abstract: Rotational rheometers are used to measure paste properties, but the test would take too long to be useful for a quality control (QC) on the job site. In this paper, a new type of rheometer is proposed based on a one degree of freedom (DOF) micro-elec ...

4. Comparative study of methods to measure the density of Cementitious powders
Published: 12/14/2015
Authors: Michelle Annette Helsel, Chiara F Ferraris, Dale P Bentz
Abstract: The accurate measurement of the density of hydraulic cement plays an essential role in the determination of concrete mixture proportions. As more supplementary cementitious materials (SCM), such as fly ash and slag, or cement replacement materials, ...

5. Re-Certification of SRM 2492: Bingham Paste Mixture for Rheological Measurements
Series: Special Publication (NIST SP)
Report Number: 260-182
Published: 8/25/2015
Authors: Chiara F Ferraris, Alex Olivas, William F Guthrie, Blaza Toman
Abstract: Rheological measurements are often performed using a rotational rheometer. In this type of rheometer, the tested fluid is sheared between two surfaces, one of which is rotating [1]. Usually, an angular velocity is imposed on the fluid (through the ro ...

6. Metrology Needs for Predicting Concrete Pumpability
Published: 6/22/2015
Authors: Myoungsung Choi, Chiara F Ferraris, Nicos Martys, Didier Lootens, Van Bui, Trey Hamilton
Abstract: With the increasing use of pumping to place concrete, the development and refinement of the industry practice to ensure successful concrete pumping is becoming an important need for the concrete construction industry. To date, research on concrete pu ...

7. Research Needs to Advance Concrete Pumping Technology
Series: Technical Note (NIST TN)
Report Number: 1866
Published: 4/10/2015
Authors: Chiara F Ferraris, Nicos Martys, Myoungsung Choi, Van Bui, Trey Hamilton, Didier Lootens
Abstract: With the increasing use of pumping to place concrete, the development and refinement of the industry practice to ensure successful concrete pumping is becoming an important need for the concrete construction industry. To date, research on concret ...

8. Characterization of Metal Powders Used for Additive Manufacturing
Series: Journal of Research (NIST JRES)
Report Number: 119.018
Published: 9/16/2014
Authors: John A. Slotwinski, Edward Joseph Garboczi, Paul E Stutzman, Chiara F Ferraris, Stephanie S Watson, Max A Peltz
Abstract: Additive manufacturing (AM) techniques can produce complex, high-value metal parts, with potential applications as critical parts such as those found in aerospace components. The production of AM parts with consistent and predictable properties ...

9. Development of Laboratory Test Methods to Replace the Simulated High-Temperature Fluidity Test
Published: 8/29/2014
Authors: Chiara F Ferraris, H. R. R Hamilton, Alexander Piper
Abstract: This report contains a summary of the research performed to develop a replacement for the high-temperature grout fluidity (HTGF) test. The HTGF test was employed in the past by FDOT to qualify post-tensioning (PT) grouts for use in post-tensioned br ...

10. Development of Standard Reference Materials for Cement-Based Materials
Published: 1/6/2014
Authors: Chiara F Ferraris, Nicos Martys, William L George
Abstract: Rotational rheometers are routinely used for homogeneous materials, but their usage for characterization of a granular fluid like concrete is a relatively new phenomenon. As measurements with rheometers can involve flow in a complex geometry, it is ...

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Looking for a NIST Special Publication (NIST SP Series)? Place the series number and dash in the report number field (Example: 800-) and begin your search.

  • SP 250-XX: Calibration Services
  • SP 260-XX: Standard Reference Materials
  • SP 300-XX: Precision Measurement and Calibration
  • SP 400-XX: Semiconductor Measurement Technology
  • SP 480-XX: Law Enforcement Technology
  • SP 500-XX: Computer Systems Technology
  • SP 700-XX: Industrial Measurement Series
  • SP 800-XX: Computer Security Series
  • SP 823-XX: Integrated Services Digital Network Series