Time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristics

This paper examines the influence of coarse aggregate characteristics on the time-dependent deformations of High Performances Concretes (HPC). Four concretes made using the same cement paste but incorporating different types of aggregate (rolled siliceous gravel, crushed granite, crushed limeston...

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Main Authors: Escadeillas G., Vidal T., Pons G., Makani A.
Format: Article
Language:English
Published: EDP Sciences 2010-06-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20100603002
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spelling doaj-a626c6ab4e7c4677941f2b3d8b5e65ae2021-08-02T01:18:11ZengEDP SciencesEPJ Web of Conferences2100-014X2010-06-0160300210.1051/epjconf/20100603002Time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristicsEscadeillas G.Vidal T.Pons G.Makani A.This paper examines the influence of coarse aggregate characteristics on the time-dependent deformations of High Performances Concretes (HPC). Four concretes made using the same cement paste but incorporating different types of aggregate (rolled siliceous gravel, crushed granite, crushed limestone and crushed siliceous gravels) were studied in order to investigate the effect of aggregate properties on the compressive strength, modulus of elasticity, shrinkage and creep. The results indicate that the aggregate type has a significant effect on creep and shrinkage deformations of HPC. An influence of the shape of aggregate on time-dependent deformations has also been observed. On the basis of these results, long-term behaviour seems to be correlated to the characteristics of the Interfacial Transition Zone (ITZ) strongly depending on the mineralogical nature and properties of aggregates. The experimental results are compared with the values calculated using the current Eurocode 2 model in order to assess the accuracy of the predictions. http://dx.doi.org/10.1051/epjconf/20100603002
collection DOAJ
language English
format Article
sources DOAJ
author Escadeillas G.
Vidal T.
Pons G.
Makani A.
spellingShingle Escadeillas G.
Vidal T.
Pons G.
Makani A.
Time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristics
EPJ Web of Conferences
author_facet Escadeillas G.
Vidal T.
Pons G.
Makani A.
author_sort Escadeillas G.
title Time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristics
title_short Time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristics
title_full Time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristics
title_fullStr Time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristics
title_full_unstemmed Time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristics
title_sort time-dependent behaviour of high performance concrete: influence of coarse aggregate characteristics
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2010-06-01
description This paper examines the influence of coarse aggregate characteristics on the time-dependent deformations of High Performances Concretes (HPC). Four concretes made using the same cement paste but incorporating different types of aggregate (rolled siliceous gravel, crushed granite, crushed limestone and crushed siliceous gravels) were studied in order to investigate the effect of aggregate properties on the compressive strength, modulus of elasticity, shrinkage and creep. The results indicate that the aggregate type has a significant effect on creep and shrinkage deformations of HPC. An influence of the shape of aggregate on time-dependent deformations has also been observed. On the basis of these results, long-term behaviour seems to be correlated to the characteristics of the Interfacial Transition Zone (ITZ) strongly depending on the mineralogical nature and properties of aggregates. The experimental results are compared with the values calculated using the current Eurocode 2 model in order to assess the accuracy of the predictions.
url http://dx.doi.org/10.1051/epjconf/20100603002
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