Index Catalog // Arch : Northwestern University Institutional Repository

Description:: The paper deals with the behavior of fluid cement pastes, formulated from Self Consolidating Concretes (SCCs), and the experimental correlation of fundamental rheological properties, such as the yield stress and the viscosity, with measurements from field tests, such as the mini-cone slump flow test. As a matter of fact, several...
Keyword:: Self-consolidating concrete and Cement rheology
Creator:: Liberato Ferrara, Surendra P. Shah, and Nathan Tregger
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/19/2017
Date Modified:: 08/14/2017
Date Created:: 2007
Resource Type:: Research Paper

Description:: There have been numerous studies that have aimed at improving the low tensile strength, stiffness, and toughness of cementitious materials. This study aims to show that all of these characteristics can be greatly improved by the addition of ladder scale reinforcement at the nano and micro scale. Carbon nanofibers (CNFs)...
Keyword:: nanofiber reinforcement, mechanical properties, carbon nanofibers, hybrid composites, polyvinyl alcohol microfibers, and scanning electron microscopy
Creator:: Surendra P. Shah, Zoi S. Metaxa, and Maria S. Konsta-Gdoutos
Owner:: Chris Diaz
Date Uploaded:: 08/14/2017
Date Modified:: 08/17/2017
Date Created:: 2011
Resource Type:: Article

Description:: The setting and hardening process of concrete is considered to be the most critical time period during the life of a concrete structure. Previous research has been conducted on an ultrasonic wave reflection method that utilizes a steel plate embedded in the concrete to measure the reflection loss of shear...
Keyword:: Nondestructive testing
Creator:: Surendra P. Shah and Thomas Voigt
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/19/2017
Date Modified:: 08/14/2017
Date Created:: 2003
Resource Type:: Conference Proceeding

Description:: The gradual evolution of the material properties of a cement-based material, i.e. the stiffness of cement paste, is the result of the continuous change of the microstructure with the progress of the hydration process. Based on an existing micromechanical model for the simulation of the shear and elastic modulus of...
Keyword:: Structural health monitoring and Cement rheology
Creator:: Zhihui Sun, Guang Ye, Klaas van Breugel, Surendra P. Shah, and Thomas Voigt
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/19/2017
Date Modified:: 08/14/2017
Date Created:: 2004
Resource Type:: Research Paper

Description:: In this paper, the correlation of reflection loss measured by an ultrasonic shear wave reflection method and the microstructure in cement-based material is investigated. Three cement pastes (Portland cement type I) with different water-cement ratios (0.35, 0.50 and 0.60) cured at 25 °C were examined. The ultrasonic shear wave reflection...
Keyword:: Nondestructive testing
Creator:: Zhihui Sun, Guang Ye, Klaas van Breugel, Surendra P. Shah, and Thomas Voigt
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/19/2017
Date Modified:: 08/14/2017
Date Created:: 2003
Resource Type:: Research Paper

Description:: This presentation contains information on the keynote paper "Health Monitoring of Early Age Concrete". The presentation was delivered by Surendra P. Shah at CONSEC'04 in Seoul, Korea on June 30, 2004.
Keyword:: Structural health monitoring and Nondestructive testing
Creator:: Surendra P. Shah, Thomas Voigt, and Zhihui Sun
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/19/2017
Date Modified:: 08/14/2017
Date Created:: 2004-06-30
Resource Type:: Presentation

Description:: The setting and hardening process of concrete can be considered as the most critical time period during the life of a concrete structure. To assure high quality and avoid problems in performance throughout the life of the material, it is essential to have reliable information about the early age properties...
Keyword:: Structural health monitoring
Creator:: Zhihui Sun, Surendra P. Shah, and Thomas Voigt
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/19/2017
Date Modified:: 08/14/2017
Date Created:: 2004
Resource Type:: Other

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