Effect of Spatial Variability on
Maintenance & Repair Decisions
for Concrete Structures

By Li Ying
September 2004
Delft University Press
ISBN: 9040725055
188 pages, Illustrated, 6 " x 9 "
$59.50 Paper Original


This is a Ph.D. dissertation. Due to the increasing number of elder and deteriorating structures, maintenance is becoming a serious and more complex problem in most of the countries. A lot of studies have been carried out in this area for years. However, the fact that a lot of parameters show spatial random variability, which is linked with dependencies on temperature, w/c ratio, cement type, humidity and workmanship, is not included explicitly in most of the previous studies.

Therefore, the main objective of the project is to develop a maintenance cost prediction model that helps to determine the optimal maintenance strategy with special consideration of the spatial variability of concrete degradation. The scope of the research is limited to concrete structures and especially concrete bridges. The starting-point of this project is the functional requirements that a structure must meet during its service lifetime.

Contents include: Introduction, The Management and Maintenance System for the Infrastructure in The Netherlands, General Probability-based Maintenance for Structures, Maintenance of Concrete Structures, Maintenance of Concrete Structures with Spatial Variability, Case Demonstrations, Summaries, Conclusions and Recommendations.

Civil Engineering

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