Reliability-based Durability Design and Service Life Assessment of Concrete Structures in a Marine Environment

2014 ◽  
pp. 1-26 ◽  
Author(s):  
Mitsuyoshi Akiyama ◽  
Dan M. Frangopol ◽  
Hiroshi Matsuzaki
Keyword(s):  
Service Life ◽  
Marine Environment ◽  
Concrete Structures ◽  
Life Assessment ◽  
Durability Design

CARBONATION INDUCED CORROSION ANALYSIS OF REINFORCED CONCRETE STRUCTURES BASED ON FULL PROBABILISTIC APPROACH – AN INDONESIAN CASE STUDY

2018 ◽  
Vol 4 (1) ◽  
pp. 165
Author(s):  
Herry Prabowo ◽  
Mochamad Hilmy
Keyword(s):  
Service Life ◽  
Probabilistic Approach ◽  
Concrete Structures ◽  
Weather Condition ◽  
Analysis Data ◽  
National Standard ◽  
Concrete Carbonation ◽  
Durability Design ◽  
Starting Point ◽  
Real Performance

The assessment of the service life of concrete structures using the durability design approach is widely accepted nowadays. It is really encouraged that a simulation model can resemble the real performance of concrete during the service life. This paper investigates the concrete carbonation through probabilistic analysis. Data regarding Indonesian construction practice were taken from Indonesian National Standard (SNI). Meanwhile, data related to Indonesian weather condition for instance humidity and temperature are taken from local Meteorological, Climatological, and Geophysical Agency from 2004 until 2016. Hopefully the results can be a starting point for durability of concrete research in Indonesia.

Evaluation of service life design models on concrete structures exposed to marine environment

2010 ◽  
Vol 43 (10) ◽  
pp. 1397-1412 ◽  
Author(s):  
Irina Stipanovic Oslakovic ◽  
Dubravka Bjegovic ◽  
Dunja Mikulic
Keyword(s):  
Service Life ◽  
Marine Environment ◽  
Concrete Structures ◽  
Design Models ◽  
Service Life Design ◽  
Life Design

scholarly journals Service life design and modelling of concrete structures – background, developments, and implementation

2018 ◽  
Vol 8 (3) ◽  
pp. 224-245 ◽  
Author(s):  
Mark Gavin Alexander
Keyword(s):  
South Africa ◽  
Service Life ◽  
Current Knowledge ◽  
Concrete Structures ◽  
International Experience ◽  
Durability Design ◽  
Service Life Design ◽  
International View ◽  
Life Design ◽  
Service Life Modelling

The paper presents an overview of current knowledge and progress in service life design and modelling of concrete structures, taking an international view but also giving local examples from South Africa. It raises the question of why service life modelling is needed, and indicates that modern demands for longevity, durability, and sustainability of concrete structures cannot be fulfilled without service life modelling. It addresses the current approaches to durability design and specification and concludes that a move to performance-based approaches is imperative if progress is to be made. Examples from international experience are cited to illustrate progress that has been made. Lastly, the paper discusses ways of moving forward, recognizing that the philosophical bases are already firmly in place in the form of general code formulations, but these need to be converted into useful approaches.

Influence of Cracks on the Service Life of Concrete Structures in a Marine Environment

2008 ◽  
Vol 399 ◽  
pp. 153-160 ◽  
Author(s):  
Katrien Audenaert ◽  
Liviu Marsavina ◽  
Geert de Schutter
Keyword(s):  
Service Life ◽  
Marine Environment ◽  
Thermal Effects ◽  
Influencing Factor ◽  
Concrete Structures ◽  
Reinforcement Corrosion ◽  
The Finite Element Method ◽  
Test Program ◽  
Cracked Concrete ◽  
Set Up

Chloride initiated reinforcement corrosion is the main durability problem for concrete structures in a marine environment. If the chlorides reach the reinforcement steel, it will depassivate and start to corrode in presence of air and water. Since the corrosion products have a larger volume than the initial products, concrete stresses are induced, leading to spalling and degradation of the concrete structures. If cracks, caused by early drying, thermal effects, shrinkage movements or overstress, are present in the concrete, the penetration of chlorides is much faster compared to uncracked concrete. In this way, the corrosion process is initiated earlier and the service life is decreasing drastically. In order to study the influence of existing cracks in concrete structures on the penetration of chlorides a test program was set up at the Magnel Laboratory for Concrete Research of Ghent University, Belgium in cooperation with the “Politehnica” University of Timisoara, Romania. The first part of the test program consists of concrete specimens with artificial cracks. The chloride penetration into the concrete was realised with a non-steady state migration test and modelled with the finite element method COSMOS/FFE Thermal software. Based on the experimental and numerical results, a crack influencing factor was determined. With this factor, the resulting service life of the cracked concrete construction is determined and compared with the original service life.

Sign in / Sign up

Export Citation Format

Share Document