Index Catalog // Arch : Northwestern University Institutional Repository

1. Effects of Crack Width on Carbonation Penetration: Implications for Crack-Dating

Description:: Carbonation, a neutralizing reaction in cement paste, can be used to date cracks in cementitious materials. Currently, comparison between two cracks is the only method available to predict a relative age with carbonation. These two crack studies require a crack of known age in a similar material with similar exposure...
Keyword:: civil engineering
Creator:: Laura E. Sullivan-Green
Owner:: Chris Diaz
Date Uploaded:: 08/14/2017
Date Modified:: 08/14/2017
Date Created:: 2005-03
Resource Type:: Masters Thesis

2. TDR Monitoring of Soil Deformation: Case Histories and Field Techniques

Description:: This thesis presents the application of Time Domain Reflectometry technology in nine case studies. Presented in detail are cable and grout installation techniques, data acquisition instrumentation and autonomous real time monitoring of soil deformation using TDR. The goal of this work is to summarize the state of the technology in...
Keyword:: Structural health monitoring
Creator:: Matthieu L. Dussud
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/05/2017
Date Modified:: 08/14/2017
Date Created:: 2002-12
Resource Type:: Masters Thesis

3. Wireless Sensor Networks for Crack Displacement Measurement

Description:: Miniaturized, wireless instrumentation is now a reality and this thesis describes development of such a system to monitor crack response. Comparison of environmental (long-term) and blast-induced (dynamic) crack width changes in residential structures has lead to a new approach to monitoring and controlling construction vibrations. In wireless systems transducer power...
Keyword:: Structural health monitoring
Creator:: Hasan Ozer
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/05/2017
Date Modified:: 08/14/2017
Date Created:: 2005
Resource Type:: Masters Thesis

4. Autonomous Crack Comparometer

Description:: Public concern over construction vibration-induced cracking has led to the development of a radically new approach to vibration, an autonomous crack comparometer (ACC). This thesis chronicles the first step of developing equipment and software necessary for this system. The new system will automatically compare longterm weather induced micrometer changes in...
Keyword:: Structural health monitoring
Creator:: Damian R. Siebert
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/05/2017
Date Modified:: 08/14/2017
Date Created:: 2000-06
Resource Type:: Masters Thesis

5. Comparison of Measured Crack Response in Diverse Structures to Dynamic Events and Weather Phenomena

Description:: This thesis consists of the data and analysis of structural responses for two different studies: the Office of Surface Mining (OSM) study of the velocity response of “atypical” residential structures and the Autonomous Crack Monitoring (ACM) study. The main basis of this thesis was to do additional analysis on a...
Keyword:: Structural health monitoring
Creator:: Laureen M. McKenna
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/05/2017
Date Modified:: 08/14/2017
Date Created:: 2002-03
Resource Type:: Masters Thesis

6. Crack Response to Weather Effects, Blasting, and Construction Vibrations

Description:: Autonomous Crack Measurement (ACM) facilitates simultaneous measurement of crack response to environmental changes and vibrations produced by various construction activities. Dual-purpose crack displacement sensors measure crack response, while the vibration environment is defined by standard seismological transducers and the weather environment is defined as changes in temperature and humidity. This...
Keyword:: Structural health monitoring and Cracking of concrete
Creator:: Mickey L. Snider
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/05/2017
Date Modified:: 08/14/2017
Date Created:: 2003-05
Resource Type:: Masters Thesis

7. Standardization of Automated Crack Monitoring Apparatus for Long-Term Commercial Applications

Description:: All structures have cosmetic cracks, which have no influence on structural integrity and usually remain unremarked until the structure’s occupants sense ground vibrations. Such vibrations are often associated with engineering activity, but are rarely responsible for cracks. However, this is difficult to prove without scientific basis. Automated Crack Monitoring (ACM)...
Keyword:: Structural health monitoring and Cracking of concrete
Creator:: Markian B. Petrina
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/05/2017
Date Modified:: 08/14/2017
Date Created:: 2004-08
Resource Type:: Masters Thesis

8. Residential Crack Response to Vibrations from Underground Mining

Description:: This thesis summarizes two further developments of the Autonomous Crack Monitoring (ACM) system, which facilitates simultaneous measurement of crack response to environmental changes and various dynamic events. The first component was measurement of crack responses in three different materials and locations in a residential structure subjected to ground vibrations produced...
Keyword:: Structural health monitoring
Creator:: Mike J. Waldron
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/05/2017
Date Modified:: 08/14/2017
Date Created:: 2006-06
Resource Type:: Masters Thesis

9. Wireless Sensor Networks for Monitoring Cracks in Structures

Description:: Autonomous Crack Monitoring (ACM) and Autonomous Crack Propagation Sensing (ACPS) are two types of structural health monitoring in which characteristics of cracks are recorded over long periods of time. ACM seeks to correlate changes in widths of cosmetic cracks in structures to nearby blasting or construction vibration activity for the...
Keyword:: Structural health monitoring and Wireless sensor networks
Creator:: Matthew P. Kotowsky
Owner:: Nurganym Agzamova
Publisher:: Northwestern University Libraries
Language:: English
Date Uploaded:: 07/05/2017
Date Modified:: 08/14/2017
Date Created:: 2010
Resource Type:: Masters Thesis

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1. Effects of Crack Width on Carbonation Penetration: Implications for Crack-Dating

2. TDR Monitoring of Soil Deformation: Case Histories and Field Techniques

3. Wireless Sensor Networks for Crack Displacement Measurement

4. Autonomous Crack Comparometer

5. Comparison of Measured Crack Response in Diverse Structures to Dynamic Events and Weather Phenomena

6. Crack Response to Weather Effects, Blasting, and Construction Vibrations

7. Standardization of Automated Crack Monitoring Apparatus for Long-Term Commercial Applications

8. Residential Crack Response to Vibrations from Underground Mining

9. Wireless Sensor Networks for Monitoring Cracks in Structures

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1. Effects of Crack Width on Carbonation Penetration: Implications for Crack-Dating

2. TDR Monitoring of Soil Deformation: Case Histories and Field Techniques

3. Wireless Sensor Networks for Crack Displacement Measurement

4. Autonomous Crack Comparometer

5. Comparison of Measured Crack Response in Diverse Structures to Dynamic Events and Weather Phenomena

6. Crack Response to Weather Effects, Blasting, and Construction Vibrations

7. Standardization of Automated Crack Monitoring Apparatus for Long-Term Commercial Applications

8. Residential Crack Response to Vibrations from Underground Mining

9. Wireless Sensor Networks for Monitoring Cracks in Structures