Evaluation of the techniques to mitigate early shrinkage cracking through an image analysis methodology
Visualitza/Obre
Cita com:
hdl:2117/100374
Tipus de documentArticle
Data publicació2016-12
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Abstract
Nowadays, new products are introduced in concrete mixes to reduce the effects of shrinkage, which are the main reason of most of early age cracking phenomena, especially when curing is not performed in accordance to best practices. The lack of a standardized methodology to quantify concrete cracking complicates the determination of the effectiveness of different solutions and comparison between them. This research presents an evaluation through images of the suitability of fibres and shrinkage-reducing admixtures to control early shrinkage cracking in slab-type concrete elements. The use of this technique has permitted quantifying the typical cracking parameters objectively and analyse probabilistically the average crack width. Results show a delay and reduction of cracking after adding shrinkage-reducing admixtures and fibres in concrete, especially 1kgm-3 of polymeric microfibres. The incorporation of these components directly into the mix modified the behaviour of concrete, reducing shrinkage cracking from the beginning of moisture losses.
Descripció
This is the accepted version of the following article: [Ruiz-Ripoll, L., Barragán, B. E., Moro, S., and Turmo, J. (2016) Evaluation of the Techniques to Mitigate Early Shrinkage Cracking through an Image Analysis Methodology. Strain, 52: 492–502. doi: 10.1111/str.12191], which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/str.12191/abstract
CitacióRuiz-Ripoll, L., Barragán, B.E., Moro, S., Turmo, J. Evaluation of the techniques to mitigate early shrinkage cracking through an image analysis methodology. "Strain", Desembre 2016, vol. 52, núm. 6, p. 492-502.
ISSN0039-2103
Versió de l'editorhttp://onlinelibrary.wiley.com/doi/10.1111/str.12191/abstract
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