Academic literature on the topic 'Construction en béton – Défauts'
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Journal articles on the topic "Construction en béton – Défauts"
Roelfstra, P. E., H. Sadouki, and F. H. Wittmann. "Le béton numérique." Materials and Structures 18, no. 5 (September 1985): 327–35. http://dx.doi.org/10.1007/bf02472402.
Full textFortin, Andrée. "Rituels, modernisation et fierté." Les Cahiers des Dix, no. 72 (February 28, 2019): 249–90. http://dx.doi.org/10.7202/1056418ar.
Full textLicordari, Mariangela. "La propagation du béton armé au Portugal: les bâtiments industriels comme moyens de divulgation de la technique." Revista de História da Sociedade e da Cultura 16 (December 30, 2016): 321–42. http://dx.doi.org/10.14195/1645-2259_16_14.
Full textJolin, Marc, and Pierre Lacombe. "Le béton projeté : nouveaux développements et applications." Canadian Journal of Civil Engineering 27, no. 2 (April 1, 2000): 383–88. http://dx.doi.org/10.1139/l99-088.
Full textBenaissa, A., A. Kamen, K. Chouicha, and S. Malab. "Panneau 3D au béton de sable." Materials and Structures 41, no. 8 (November 30, 2007): 1377–91. http://dx.doi.org/10.1617/s11527-007-9336-8.
Full textKhadraoui, A., M. Bourget, F. Buyle-Bodin, and Y. Delmas. "Prévision du comportement en flexion de consoles courtes en béton armé. Prise en compte de l'endommagement du béton." Materials and Structures 32, no. 9 (November 1999): 651–62. http://dx.doi.org/10.1007/bf02481703.
Full textSirieix, C., J. F. Lataste, D. Breysse, and M. Frappa. "Caractérisation de l'endommagement du béton par mesures électriques." Materials and Structures 35, no. 4 (May 2002): 204–10. http://dx.doi.org/10.1007/bf02533081.
Full textMassiéra, Michel. "Utilisation des parois moulées en béton comme rideaux d'étanchéité des fondations de barrages en terre et en enrochement." Canadian Journal of Civil Engineering 18, no. 4 (August 1, 1991): 590–99. http://dx.doi.org/10.1139/l91-072.
Full textDaoud, A. "Résistance à l'arrachement d'armatures ancrées dans du béton autoplaçant." Materials and Structures 35, no. 251 (June 27, 2002): 395–401. http://dx.doi.org/10.1617/13754.
Full textJost, François. "Le spectateur qui en savait trop." Articles divers 4, no. 3 (March 4, 2011): 121–33. http://dx.doi.org/10.7202/1001041ar.
Full textDissertations / Theses on the topic "Construction en béton – Défauts"
Qiu, Lei. "Caractérisation d'un système par impédance thermique : application à la détection de défauts résistifs dans une structure en béton." Thesis, Artois, 2011. http://www.theses.fr/2011ARTO0208.
Full textThe work developed is located in the context of thermal identification and non-destructive testing of systems. The objective is to describe the behavior of stable or slowly progressive approach by identifying thermophysical parameters. The approach is to first establish the theoretical model of the system tested in the basic "explanation" which is usually the time and, from experimental results to be determined by optimizing the parameters sought. The system studied is characterized by its response function (transfer function, impedance,...). In these functions, the medium is characterized by global parameters or apparent. Our analysis is placed in the frequency domain where the convolution product, which exists in the space of time, turns into a single product. The system is then characterized by its transfer function. The study of flow-temperature relationships in a plane leads to introduce the concept of thermal impedance. Developments and applications made in this work are related to the thermal characterization of concrete in the laboratory and in situ and the detection of defects adequately contrasted positioned at different depths. The ultimate goal is to be able to use the solicitation for the identification of natural systems. The difficulty lies in the exploitation of natural data so random in a process located in the frequency domain. Flux measurements and temperature are performed on one side of access, which is in contact with the outside microclimatic environment
Perez, Fabien. "Contribution à l'étude du comportement mécanique des éléments bicouches sous sollicitations statiques et cycliques." Thesis, Université Laval, 2005. http://www.theses.ulaval.ca/2005/22536/22536.pdf.
Full textLeklou, Nordine. "Contribution à la connaissance de la réaction sulfatique interne." Toulouse 3, 2008. http://thesesups.ups-tlse.fr/417/.
Full textThe delayed formation of ettringite (DEF) is a chemical reaction that can cause the deterioration of concrete. The swelling mechanism of this reaction is complex and involves many parameters (temperature, composition of concrete, humidity. . . ). However, despite the studies on the subject over the past decade, many questions remain unanswered. The aim of our research is to provide as much as possible new elements to a better understanding of the internal sulfate attack and thus meet three objectives are "Understanding", "Prevention" and "Healing". For that, we developed a series of tests to enable us to achieve a specific experimental approach to meet these objectives. To meet the goal "Understanding", a Macro-Micro study of DEF was done. The results have been exploited macroscopically (by measuring changes in length) and microscopic (SEM observations on direct samples or replicas). The effect of different parameters on the development of this pathology has been studied. The results showed that the levels of alkalis and C3A are of great importance for the development of DEF while the E/C ratio and the pre-microcracking of the materials are important for the kinetics of DEF. It also appears that a high E/C ratio, a temperature of water conservation maintained at 40-50°C and frequently renewed water conservation causes rapid swelling due to DEF. The nature of the material (mortar or concrete) also determines the expansions. .
Ghannoum, Maria. "Effets des hétérogénéités du béton sur le comportement mécanique des structures à plusieurs échelles." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI035/document.
Full textThis thesis is a contribution to the modeling of the spatial variability of tensile strength of concrete structures, at different scales, and its influence on concrete cracking pattern. Particularly, a size effect law and random fields are used through two approaches:On the one hand, an analytical probabilistic approach of the Weakest Link and Localization (WL2) method is proposed. This method estimates the distribution of the tensile strength, at different scales, accounting for the stress redistributions around the weakest point.It depends on a scale length, whose identification is discussed. This scale length accounts for spatial randomness of the concrete tensile strengthOn the other hand, another contribution of this thesis is the development of a Stochastic Finite Element (SFE) method, used to model both size effect and the spatial variability of the tensile strength. The method consists first on defining a random field, using the mean tensile strength estimated from the analytical approach of WL2. Then, discretized autocorrelated random field realizations are generated. Moreover, the choice of autocorrelation parameters, used to define the random fields, is discussed.The applicability of both methods is evaluated using various experimental series exhibiting particularly statistical size effect. Furthermore, the SFE method is used to complete the simplified FE model of a 1/3 mock-up of a double-wall containment building. The uncertainties on the tensile strength, at this scale, are modeled using independent autocorrelated random field at each scale. Uncertainties propagation, at initial state, shows its pertinence in the estimation of crack positions
Tran, Duc Long. "Impact of intrinsic granular porosity on the durability properties of concrete." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30021.
Full textThe preservation of natural resources and the limitation of CO2 emissions are a contribution to sustainable development. In the context of the concrete design, this contribution consists in using local or recycled aggregates. However, local or recycled aggregates can be porous and of low quality.The scientific community agrees that the intrinsic porosity of aggregates changes the transport properties of concrete, but to what extent is still a question. The objective of the thesis is to analyze the impact of intrinsic coarse aggregate porosity on mainly the durability properties of concrete. In a preliminary understanding and with a view to accentuating phenomena occurring in the concrete, an experimental program is designed for elementary model (EM), which is composed of paste and gravel. The impact of the aggregate nature (porous and non-porous), moisture state and volume together with the binder nature, is analyzed on i) the water porosity of EM, ii) the structuration of the paste-aggregate interface. Next, at concrete scale, materials were designed with the same skeleton of aggregates (same sand) and the same equivalent binder content. The designs varied by the aggregate nature, moisture state, the binder nature, the variation of water/cement ratio and the incorporation of chemical admixtures (plasticizer or superplasticizer). The impact of coarse aggregate porosity on properties in the fresh state (slump, apparent density and entrapped air content) and in the hardened state (compressive strength, water porosity, water absorption, gas permeability, chloride migration, accelerated carbonation and Portlandite content) was studied. The main results show that the moisture state of aggregate and the binder nature are the first factors that condition the structuring of the paste/aggregate interface within the elementary model. The necessity to use porous aggregates in saturated surface dry is particularly highlighted. At the scale of concrete, the properties in the fresh state are influenced by the aggregate porosity and the water/binder (W/B) ratio. However, for a fixed W/B ratio corresponding to fluid consistency, the variations in the fresh properties measured when porous aggregates are incorporated do not depend on the binder nature. In hardened concrete, porosity of aggregate plays an important role in water porosity and air permeability of concrete whatever the nature of binder. For other durability properties (water absorption, Clo migration, carbonation and compressive strength), the nature of binder overcome leading in comparison to the porosity of aggregate
Al, Wardany Riad. "Caractérisation non destructive des structures en béton au moyen des ondes dispersives de Rayleigh et de Lamb." Cergy-Pontoise, 2005. http://biblioweb.u-cergy.fr/theses/05CERG0272.pdf.
Full textA new acoustical non-destructive method has been developed in this study. The method, named FK, is based on the frequency-wavenumber analysis of surface waves (Rayleigh & Lamb). It can accurately provide the variation of the shear wave velocity in concrete with depth. Experiments, conducted on various concrete slabs, have demonstrated the effectiveness of the proposed method to determine thicknesses and elastic properties (Yong’s modulus, Poisson’s ratio) of the near surface degradation. The FK method showed also high potential to detect and locate cracking plans parallel to the concrete surface. An in situ application has also demonstrated the capacity of the FK method to generate 2D images of the concrete Young’s modulus
Habita, Mohamed Fouzi. "Contribution à l'étude de l'incidence de l'alcali-réaction sur le comportement mécanique des poutres en béton armé." Lyon 1, 1992. http://www.theses.fr/1992LYO10251.
Full textBaril, Marc-Antoine. "Effets de défauts de coulage sur la micro-fissuration des dalles minces en béton fibré à ultrahaute performance - étude par stéréovision et corrélation d'images digitales." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/29636.
Full textUltra-high performance fiber reinforced concrete (UHPFRC) is well known for its great compressive resistance and its ductility. Furthermore, it is also well known that UHPFRC strongly depends on fibers’ orientations relatively to the direction of stresses. However, little is documented in the literature about the impact of local fiber discontinuity caused by casting defect. In this MSc thesis, a laboratory protocol is developed in order to measure the impact of the presence of defects in a UHPFRC slab on the mechanical response. This protocol is based on a system of photogrammetric measurement by digital image correlation (DIC). This technique allows the precise measure of the deformation as well as the displacement with help of a pair of high resolution digital camera. A computer-based post treatment analysis of these pictures is used to create a 3D model of the observed sample surface. With this new analysis method, it is possible to present different aspect of the non-linear behavior of this material. During this project, 6 different geometries of slab with and without casting defect were submitted to flexional stress by punctual loading. By developing a laboratory protocol adapted to this project, digital image correlation analysis gave a multitude of very precise results. A specific attention is made to the impact of the defect on the global mechanical behavior as well as the local damaging caused by the micro-cracks.
Nasser, Abdelkader. "La corrosion des aciers dans le béton à l'état passif et par carbonatation : prise en compte des courants galvaniques et des défauts d'interface acier-béton." Toulouse 3, 2010. http://thesesups.ups-tlse.fr/1091/.
Full textThis thesis aims to study the durability of nuclear waste deep storage structures. The work carried out is essentially an experimental study, and focuses on the corrosion of steel in the passive state with aerated or non-aerated conditions on the one hand, and the corrosion of steel in carbonated concrete during the propagation phase on the other hand. Indeed, the pore solution of concrete in contact with the metal is alkaline (pH between 12 and 13). Under these conditions, steel reinforced concrete remains passive by forming a stable and protective oxide layer (corrosion of steel in the passive state). This passive layer limits the steel corrosion rate at very low values (negligible on a short life time) but not null. For the nuclear waste storage structures due to a very long life time (up to several hundred years), this low corrosion rate can become a risk. Therefore, it is necessary to study the evolution of the oxide layer growth over time. The objectives of the thesis are to study the influence of the steel-concrete interface quality on reinforcement corrosion in passive and active state, and the possible occurrence of galvanic corrosion currents between different reinforcement steel areas. The study of corrosion in the passive state showed the presence of a new oxide layer, rich in calcium, formed post-casting by transformation of initial oxides layer such as magnetite whatever the conservation condition. The presence of interface steel-concrete default increases the kinetics of formation of this new layer. Despite of this, corrosion rates in passive state measured with or without default interface are equivalent and corrosion rates remain less than 0. 6 ?A/year (0. 05 ?A/cm2). The study of corrosion due to concrete carbonation shows clearly that extremely important galvanic corrosion currents can propagate between different reinforcement areas, especially in the presence of interface steel-concrete default
Berthet, Jean-Fabien. "Non linéarité de comportement de colonnes en béton confinées par enveloppes composites." Lyon 1, 2002. http://www.theses.fr/2002LYO10156.
Full textBooks on the topic "Construction en béton – Défauts"
Centre des techniques d'ouvrages d'art (France). Ponts-routes à poutres préfabriquées précontraintes par adhérence: PRAD : guide de conception / document réalisé et diffusé par le Service d'études techniques des routes et autoroutes, Centre des techniques d'ouvrages d'art ; [rédigé par V. Le Khac et Y.-M. Jaffré]. Bagneux: SETRA Service d'études techniques des routes et autoroutes, 1996.
Find full textGeorges, Rabant, ed. Le parc olympique de Montréal: Le béton sublimé. Paris: Somogy, 2010.
Find full textLanguedoc-Roussillon, Ecole d'architecture. Béton, matériau d'avenir: Actes du colloque international, 28 et 29 mai 1999, à l'occasion du 150ème anniversaire de l'invention du béton. Montpellier]: Espérou, 2002.
Find full textWang, Chu-Kia. Reinforced concrete design. 5th ed. New York, NY: HarperCollins, 1992.
Find full textWang, Chu-Kia. Reinforced concrete design. 7th ed. Hoboken, NJ: John Wiley & Sons, 2007.
Find full textWang, Chu-Kia. Reinforced concrete design. 6th ed. Menlo Park, Calif: Addison-Wesley, 1998.
Find full textReconstruire la France: L'aventure du béton assemblé : 1940-1955. Paris: Éditions de la Villette, 2015.
Find full textBook chapters on the topic "Construction en béton – Défauts"
Soshiroda, T., K. Hayakawa, K. Yoda, and M. Tanaka. "Effects of Cellulose Ether on Homogeneity of Concrete in Structures — Relating Quality Variations and Construction Joints." In Adhesion between polymers and concrete / Adhésion entre polymères et béton, 125–33. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4899-3454-3_14.
Full textConference papers on the topic "Construction en béton – Défauts"
Rollet, M., and S. Ourties. "Le projet informatique du groupe d'industriel G5: - faciliter i'utilisation des composants béton -faciliter la production des composants béton." In Colloque CAO et Robotique en Architecture et BTP (3rd International Symposium on Automation and Robotics in Construction). Paris: Hermes, 1986. http://dx.doi.org/10.22260/isarc1986/0029.
Full textReports on the topic "Construction en béton – Défauts"
Habert, Guillaume, and Francesco Pittau. Synthèse conjointe «Constructions durables en béton» du PNR «Energie». Swiss National Science Foundation (SNSF), February 2020. http://dx.doi.org/10.46446/publication_pnr70_pnr71.2020.5.fr.
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