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Academic literature on the topic 'Béton haute performanceEtude expérimentale'
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Journal articles on the topic "Béton haute performanceEtude expérimentale"
Guemidi, Ismahene, Hosni Abderrahmane Taleb, and Yazid Abdelaziz. "Effet de rapport E/C sur le comportement rhéologique et physico-mécanique de Béton à Haute Performance élaboré à base de pouzzolane naturelle." Journal of Engineering and Exact Sciences 10, no. 2 (January 11, 2024): 17490. http://dx.doi.org/10.18540/jcecvl10iss2pp17490.
Full textDissertations / Theses on the topic "Béton haute performanceEtude expérimentale"
Le, Roy Robert. "Déformations instantanées et différées des bétons à hautes performances." Phd thesis, Marne-la-vallée, ENPC, 1995. http://www.theses.fr/1995ENPC9534.
Full textThis thesis proposes two types of modelling, together with a long series of experimental date, for the instantaneaous and time-dependent strains of high performance concrete. The first model deals with instantaneous, autogenous shrinkage and basic creep deformations of high performance concrete with respect to mix-design parameters. To the end, a homogenization approach based on Hashin’s spheres model for the modulus, is adopted and modified to take into account the effective maximum packing density of the aggregates. This leads to a three-sphere model. After justification, the Poisson’s ratio of each phase is set at a constant value of 0,2. This model is consequently applied to calculate the long-term amplitude of autogenous shrinkage and basic-creep. The creep results obtained are compared with visco-elastic calculation, which allows the adopted approach to be confirm. The main mix-design parameters are taken into account (water/cement ratio, silica fume/cement ratio, aggregate concentration, maximum packing density of the agregate, cement strength). The second research part deals with a simplified model for design code purposes. It allows the calculation of high performance concrete strains as a function of time, and a limited number of parameters. In particular it accounts for the self-dessication, the maturity and the strength of the concrete at the loading time. This model was validated against extensive experimental data, covering the marurity rang from sixteen hours to two years. The model was established within the framework of the French Structures and Materials Research Association (AFREM) and is proposed in addition to the French Prestressed Concrete French Code (BPEL) for concrete covering the strength range from 40 to 80 Mega-Pascals
Proulx, Frédéric. "Étude expérimentale des poutres en bois lamellé-collé renforcées de béton fibré à ultra-haute performance et de barres de polymère renforcé de fibres." Mémoire, Université de Sherbrooke, 2013. http://hdl.handle.net/11143/6220.
Full textCasanova, Pascal. "Bétons renforcés de fibres métalliques : du matériau à la structure. Etude expérimentale et analyse du comportement de poutres soumises à la flexion et à l'effort tranchant." Phd thesis, Ecole Nationale des Ponts et Chaussées, 1995. http://tel.archives-ouvertes.fr/tel-00523261.
Full textDelporte, Corinne. "L'anhydrite naturelle de faulquemont et sa valorisation sous forme de béton sulfate : Mécanisme d'hydratation et mise au point d'accélérateurs de prise hydraulique." Nancy 1, 1988. http://www.theses.fr/1988NAN10113.
Full textLe, Roy Robert. "Déformations instantanées et différées des bétons à hautes performances." Phd thesis, Ecole Nationale des Ponts et Chaussées, 1995. http://tel.archives-ouvertes.fr/tel-00529739.
Full textCasanova, Pascal. "Bétons renforcés de fibres métalliques : Du matériau à la structure. Etude expérimentale et analyse du comportement de poutres soumises à la flexion et à l'effort tranchant." Phd thesis, Marne-la-vallée, ENPC, 1995. http://www.theses.fr/1995ENPC9517.
Full textSteel fibre reinforced concrete (SFRC) are rarely used in truly structural applications. This fact is mainly due to the lack of design tools, and consequently to the difficulty in quantifying the structural part due to these materials. The objective of this work is to give an answer to this matter in the case of beams. The structural performed tests have two goals : firstly, to study the failure mechanisms and, secondly, to validate the models developed in this work. Test are thus carried out in bending and shear. A global investigation tool, stereophotogrammetry, is used to study the cracking pattern : it shows clearly an early crack localization and the onset of a block mechanism which leads to a block type failure. These tests point out that the main mechanical characteristic of SFRC is their post cracking behaviour in tension. A uniaxial tension test on notched specimens is used, and developed, to measure a load – crack opening relationship. Specimens are cored, in the direction of the main load, to take into account the anisotropy due to concreting. A first type of model consists in postulating a failure mechanism, then in calculating the equilibrium of the structure, as a function of the crack opening, starting from the experimental relationship obtained in tension. Modelling of bending leads to good results. Concerning shear behaviour, the fibre part is correctly calculated and an equivalence relationship with classical stirrups is achieved. To take into account the observed scale effects, it is necessary to consider the evolution, with the crack opening, of the residual strength in tension. An empirical relationship is necessary to quantify the structural part of shear resistance. This illustrates the limits of simple models. Therefore, it seems necessary to use finite elements to model structures submitted to complex loading. A continuous approach (plasticity) and a discrete one (the LCPC’s probabilistic model) are used. To conclude, a complete study was carried out from the material to the structure. This study, experimental and theoretical, presents methods of analysis that, coupled with a global procedure from mix design to mechanical characterization, allow to optimize the desing of SFRC structural elements
Baroghel-Bouny, Véronique. "Caractérisation microstructurale et hydrique des pâtes de ciment et des bétons ordinaires et à très hautes performances." Phd thesis, Ecole Nationale des Ponts et Chaussées, 1994. http://tel.archives-ouvertes.fr/tel-00523299.
Full textBonneau, Olivier. "Étude des effets physico-chimiques des superplastifiants en vue d'optimiser le comportement rhéologique des bétons à ultra-hautes performances." Cachan, Ecole normale supérieure, 1997. http://www.theses.fr/1997DENS0027.
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