Show simple item record Malumbela, G. Moyo, P. Alexander, M. 2011-02-10T07:52:41Z 2011-02-10T07:52:41Z 2011
dc.identifier.citation Malumbela, G. et al (2010) Influence of corrosion crack patterns on the rate of crack widening of RC beams, Construction and Building Materials, Vol. 25, pp. 2450-2553 en_US
dc.identifier.issn 0950 0618
dc.description.abstract Corrosion crack widths are often used by structural engineers in the field to predict level of steel corrosion as well as residual load-bearing capacities of corroding RC structures. This paper presents further work on this matter but with focus on corrosion crack patterns and how they affect rate of crack widening. It is based on results from a research where 17 quasi-full-scale (153 254 3000 mm) RC beams were corroded under various levels of sustained loads. The rate of widening of corrosion crack widths was found to be very much dependent on crack patterns. Deformation of cover concrete under each crack pattern was discussed. It was found that at maximum crack widths below 0.6 mm, the majority of beams exhibited nearly similar crack patterns as well as rate of widening of corrosion cracks. A mass loss of steel of 1% corresponded to a maximum crack width between 0.14 and 0.22 mm. At large crack widths (>0.6 mm), various beams exhibited very different rates of crack widening. It was shown that at crack widths above 0.6 mm, to be conservative an increase in mass loss of steel of 1% corresponded to corrosion crack widening of 0.02 mm. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Reinforced concrete en_US
dc.subject Crack patterns en_US
dc.subject Crack widths en_US
dc.subject Steel corrosion en_US
dc.title Influence of corrosion crack patterns on the rate of crack widening of RC beams en_US
dc.type Published Article en_US

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