Early-age crack modelling in concrete - considerations of fib tg-8-8 wp6

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Overview

Crack width modelling is typically performed using the existing standards and methods available in the literature. These methods and models are based on both experiments and different theoretical models of cracking of concrete. Most prediction methods define crack widths as the integration of the strain difference between the steel reinforcement and concrete over a transfer length for a single crack formation or over the crack spacing for a fully developed crack pattern.

The paper presents an analysis of causes and factors affecting early-age cracking and the concrete properties that are required to accurately model the mechanisms contributing to the cracking of concrete. Based on the most reliable method, assessment of cracking in existing structures is discussed. The paper also highlights the current developments of “FIB TG-8.8 WP6 Crack Width Design” as part of the deliberations towards the Model Code 2020.
 
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By purchasing this Online Learning Module, you will have the opportunity to view recorded presentations (video and audio) at your own pace over a 90-day period.


Presenter: Dr Inam Khan - BCRC 
Dr Khan has over 12 years of research and industry experience. His areas of expertise are steel corrosion in concrete, concrete durability in severe environments, service life modelling of concrete in severe environments, early-age mechanical and visco-elastic properties of concrete, time-dependent deformation in concrete, thermal and shrinkage induced crack modelling in concrete.

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Dr Inam Khan has made a copy of the paper he presented at Concrete 2019 available in pdf fomat, and the paper has been included in the presentation package


Total viewing time - 18 min