Flexural creep of steel fiber reinforced concrete in the cracked state

García-Taengua, Emilio; Arango, S.; Martí‐Vargas, José R.; Ros, Pedro Serna

doi:10.1016/j.conbuildmat.2014.04.139

Cited by 52 publications

(26 citation statements)

References 5 publications

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“…Once all specimens were pre-cracked, they were transferred to the creep frames as seen in Figure 1 and tested under sustained flexural load for at least 90 days. A more detailed description of this creep test setup-up methodology is given in Arango et al 2012 andGarcía-Taengua et al 2014. Variables.…”

Section: Creep Test Methodologymentioning

confidence: 99%

Database on the Long-Term Behaviour of FRC: A Useful Tool to Achieve Overall Conclusions

Ros¹,

Llano-Torre²,

García-Taengua³

et al. 2015

Concreep 10

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The long term behaviour of Fibre Reinforced Concrete on cracked state is an important research topic, since it is essential to understand this property when using FRC as structural material. The RILEM CCF Technical Committee was created in order to focus the efforts of all researchers on the better understanding of creep behaviour. One of the objectives of the TC was to compile a global database of results of creep test in order to analyse this phenomenon in an overall review. In order to achieve a complete enough database, several minimal variables and parameters data have been proposed on this first attempt. This first database of creep results is based on flexural creep test with different environmental conditions. In future, it can be extended to other testing methodologies. Thanks to this database, first conclusions start reveal those variables which have a higher significance level in creep deferred behaviour.

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Section: Creep Test Methodologymentioning

confidence: 99%

Database on the Long-Term Behaviour of FRC: A Useful Tool to Achieve Overall Conclusions

Ros¹,

Llano-Torre²,

García-Taengua³

et al. 2015

Concreep 10

Self Cite

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“…Previous research on cracked steel FRC (Arango, 2010;Arango et al, 2012;García-Taengua et al, 2014) found low coefficients of creep at different long-term load levels for a 90 d period, but the type of fibre, the load level and the concrete strength significantly affected the creep behaviour. The authors concluded that the use of fibres, even at low contents, is a good strategy to control flexural creep in the cracked state.…”

Section: Introductionmentioning

confidence: 99%

Creep and residual properties of cracked macro-synthetic fibre reinforced concretes

Ros

Martí‐Vargas

Bossio

et al. 2016

Magazine of Concrete Research

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This study analysed the creep behaviour of five concretes incorporating 0·5% by volume of four macro-synthetic fibres (MSFs) and one steel fibre. After 28 d moist curing, prisms were pre-loaded up to a crack opening of 0·5 mm and held for 90 d in three different environments -ambient laboratory air, seawater at 45°C and air flow at 45°C.Sustained loads were then applied on three specimens from each group while the other prisms remained unloaded.The remaining residual capacity was evaluated by bending tests. It was concluded that the residual capacity of cracked MSF concretes is not affected by long-term loading.

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“…A number of different factors affect creep of cracked FRC elements, relative to the composition and mechanical properties of the concrete matrix, fibres type and dosage, environmental conditions, loading conditions, or time, among other factors [3,4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Residual Strength Parameters on FRC Flexural Creep: Multivariate Analysis

et al. 2016

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This paper reports the multivariate analysis of experimental results from more than one hundred FRC prismatic specimens tested under sustained flexural loads for at least 90 days, collected from previously published sources. Principal Component Analysis was used to minimise the number of variables in the modelling process while compromising the minimum amount of information. The creep parameters analysed were the creep coefficients at 14, 30, and 90 days and the corresponding crack opening rates. They were related to the following factors: concrete compressive strength, residual load-bearing capacity in flexure, fibre material, and load. Multiple linear regression was used for the modelling of these relationships. Higher levels of flexural toughness were found to significantly reduce the variability of all creep parameters. Differences in fibre material were detected to introduce important differences in interaction with other factors, especially the load ratio, which was attributed to the association between the range of flexural toughness to be expected and the type of fibres used.

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Flexural creep of steel fiber reinforced concrete in the cracked state

Abstract: This is a repository copy of Flexural creep of steel fiber reinforced concrete in the cracked state.

Cited by 52 publications

References 5 publications

Database on the Long-Term Behaviour of FRC: A Useful Tool to Achieve Overall Conclusions

Database on the Long-Term Behaviour of FRC: A Useful Tool to Achieve Overall Conclusions

Creep and residual properties of cracked macro-synthetic fibre reinforced concretes

Effect of Residual Strength Parameters on FRC Flexural Creep: Multivariate Analysis

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