An analysis of the applicability of existing shrinkage prediction models to concretes containing steel fibres or crumb rubber

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00330026" target="_blank" >RIV/68407700:21110/19:00330026 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.jobe.2019.02.021" target="_blank" >https://doi.org/10.1016/j.jobe.2019.02.021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jobe.2019.02.021" target="_blank" >10.1016/j.jobe.2019.02.021</a>

Result language

angličtina

Original language name

An analysis of the applicability of existing shrinkage prediction models to concretes containing steel fibres or crumb rubber

Original language description

Shrinkage is one of the most important phenomena influencing the long-term behaviour of concrete structures. Several models for prediction of shrinkage strains have been developed in the past. Despite the fact that all of them have been validated against large experimental data sets, they give diverse results. This paper deals with an analysis of the shrinkage behaviour of five selected concrete mixtures – normal-strength concrete without additional compounds, with crumb rubber, and with steel fibres, and high-strength concrete with and without fibres. Shrinkage strains of these concretes have been monitored for 365 days, and experimental data were compared to four shrinkage prediction models (model B3, model B4 and two Eurocode 2 models). The main objectives of the research were to study the effects of fibres and crumb rubber on concrete shrinkage behaviour and to analyse suitability of the prediction models for the materials with additional compounds, laying partly outside the applicability limits of the models. Uncertainty and variance of two input parameters (compressive strength and relative humidity) was taken into account by means of reliability analysis. Steel fibres were found to mitigate the influence of shrinkage; crumb rubber did not improve the shrinkage behaviour. Eurocode 2 and B3 models were able to predict shrinkage of normal-strength concrete well in the presence of additional compounds. B3 prediction was accurate also for fibre-reinforced high-strength concrete, while B4 exhibited the best fit in the case of high-strength concrete without fibres.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA17-19463S" target="_blank" >GA17-19463S: Analysis of the relations between the microstructure and macroscopic properties of ultra-high performance concretes</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Building Engineering

ISSN

2352-7102

e-ISSN

2352-7102

Volume of the periodical

24

Issue of the periodical within the volume

07

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

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UT code for WoS article

000473191200003

EID of the result in the Scopus database

2-s2.0-85062273245