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You searched on: Author: chiara ferraris

Displaying records 61 to 70 of 96 records.
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61. Virtual Cement. Chapter 10.3.
Published: 12/1/2004
Authors: Jeffrey W Bullard, Chiara F Ferraris, Edward Joseph Garboczi

62. Measurement of Particle Size Distribution in Portland Cement Powder: Analysis of ASTM Round-Robin Studies
Published: 11/1/2004
Authors: Chiara F Ferraris, Vincent A Hackley, A Aviles
Abstract: A distribution of particle sizes or particle size distribution (PSD) is a fundamental characteristic of cement powder. Accurate PSDs are required in computational efforts to model the hydration process and it is an important practical issue for the c ...

63. SCC Evolution of Formwork Hydraulic Pressure and Rheological Properties
Published: 4/1/2004
Authors: S Amziane, Chiara F Ferraris
Abstract: An experimental investigation was performed to determine the hydraulic pressure variation of cementitious based materials (cement paste, concrete, SCC, etc.) during the plastic phase. A method based on measurements of both total lateral pressure and ...

64. Simulation of Expansion in Cement Based Materials Subjected to External Sulfate Attack
Published: 3/24/2004
Authors: B Mobasher, Chiara F Ferraris
Abstract: Sulfate attack in concrete structures is considered to be among the major durability concerns in civil infrastructure systems. Proper modeling techniques can help us understand the durability conditions more readily and accurately. Such an understa ...

65. Partical Size Analysis by Laser Diffraction Spectrometry: Application to Cementitious Powders
Series: NIST Interagency/Internal Report (NISTIR)
Published: 3/1/2004
Authors: Vincent A Hackley, Lin-Sien H. Lum, V Gintautas, Chiara F Ferraris

66. Comparison of Concrete Rheometers.
Published: 8/1/2003
Authors: Chiara F Ferraris, L E Brower
Abstract: Concrete mixtures require sufficient workability for proper placement. In particular, sprayed, pumped and self-compacting concretes require careful definition and control of their flow properties to produce good workability. The American Concrete Ins ...

67. Relating Fresh Concrete Viscosity Measurements From Different Rheometers
Series: Journal of Research (NIST JRES)
Published: 5/1/2003
Authors: Chiara F Ferraris, Nicos Martys
Abstract: The rheological properties of concrete need to be measured and predicted to enable the characterization of special concrete such as self-consolidating concrete (SCC). It was also shown by a round-robin held in 2000 [ , ] that different rheometers g ...

68. Analysis of the ASTM Round-Robin Test on Particle Size Distribution of Portland Cement: Phase II
Series: NIST Interagency/Internal Report (NISTIR)
Published: 12/1/2002
Authors: Chiara F Ferraris, Vincent A Hackley, A Aviles, C E Buchanan
Abstract: Particle size distribution (PSD) is an essential property of cement. The only standard method to measure the PSD of cement, namely ASTM C115 [ ] is limited in scope; this standard describes a method for determining fineness with a lower size detect ...

69. Acoustophoretic Characterization of Cement Suspensions
Published: 11/1/2002
Authors: Robert J Flatt, Chiara F Ferraris
Abstract: Acoustophoresis has been used to study the evolution of the surface potential of hydrating cement suspensions because it is potentially capable of measuring zeta potentials of cement suspensions at concentrations high enough not to modify ion/particl ...

70. Simulation of SCC Flow
Published: 11/1/2002
Authors: Nicos Martys, Chiara F Ferraris
Abstract: Predicting the rheological properties of concrete is essential for its optimal use in situations such as flow between rebars. The aggregate gradation and shape, as well as the rheological properties of the mortar or cement paste will affect the flow ...

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