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Long-Term Creep Properties of Cementitious Materials - Comparing Compression Tests on Concrete with Microindentation Tests on Cement
This study compares minutes-long microindentation creep experiments on cement paste with years-long macroscopic creep experiments on concrete. For both cement and concrete samples, after a transient period their creep function was well captured by a logarithmic function of time. The creep modulus of various concrete samples was estimated from microindentation tests on cement pastes combined with micromechanical model. The estimated moduli were very close to those calculated directly from uniaxial compressive creep tests on concrete, which proves that minutes-long microindentation creep test can give access to the long-term creep properties of concrete. Key words: basic creep, long-term creep, microindentation, cement, concrete
Long-Term Creep Properties of Cementitious Materials - Comparing Compression Tests on Concrete with Microindentation Tests on Cement
This study compares minutes-long microindentation creep experiments on cement paste with years-long macroscopic creep experiments on concrete. For both cement and concrete samples, after a transient period their creep function was well captured by a logarithmic function of time. The creep modulus of various concrete samples was estimated from microindentation tests on cement pastes combined with micromechanical model. The estimated moduli were very close to those calculated directly from uniaxial compressive creep tests on concrete, which proves that minutes-long microindentation creep test can give access to the long-term creep properties of concrete. Key words: basic creep, long-term creep, microindentation, cement, concrete
Long-Term Creep Properties of Cementitious Materials - Comparing Compression Tests on Concrete with Microindentation Tests on Cement
Zhang, Q. (author) / Le Roy, R. (author) / Vandamme, M. (author) / Zuber, B. (author)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 1596-1604
2013-06-18
Conference paper
Electronic Resource
English
Wave propagation , Poroelasticity , Creep , Cement , Concrete , Mechanics , Simulation , Porous media , Soil compression , Porosity
| British Library Online Contents | 2014
Uniaxial confined compression tests of cementitious materials
| Online Contents | 2017