Browsing by Subject "Concrete"
Now showing items 1-20 of 255
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3D imaging techniques for characterising microcracks in cement-based materials
(2021-02)
Article
Open AccessConcrete inherently contains pores and microcracks that can adversely impact its mechanical properties and long-term durability. However, characterising microcracks is difficult due to their complex, multiscale and ... -
A comparison of the state of the art models for constitutive modelling of concrete
(2021-02-01)
Article
Open AccessConcrete is undoubtedly the most important and widely used construction material of the last centuries. Nevertheless, mathematical models that can accurately capture the particular material behaviour under all loading ... -
A local constitutive model for the discrete element method: application to geomaterials and concrete
(Springer, 2015-06)
Article
Open AccessThis paper presents a local constitutive model for modelling the linear and non linear behavior of soft and hard cohesive materials with the discrete element method (DEM). We present the results obtained in the analysis ... -
A model for the analysis of concrete dams due to environmental thermal effects
(1996-07)
Article
Open AccessIn this article, an analytical model is presented for the simulation of the thermal behaviour of dams that are subjected to environmental thermal action during service. The method of solution adopted, as well as the ... -
A review of sample preparation and its influence on pH determination in concrete samples
(Instituto Técnico de la Construcción y del Cemento, 2017-01)
Article
Open AccessIf we are to monitor the chemical processes in cementitious materials, then pH assays in the pore solutions of cement pastes, mortars, and concretes are of key importance. However, there is no standard method that regulates ... -
A robust and efficient 3D constitutive law to describe the response of quasi-brittle materials subjected to reverse cyclic loading: formulation, identification and application to a RC shear wall
(CIMNE, 2015)
Conference lecture
Open AccessIn this paper, a new constitutive law aiming at describing the quasi-brittle behavior when subjected to cyclic loading is presented.The proposed model is formulated with in the frame work of isotròpic contínuum damage ... -
A thermodynamically consistent plastic-damage framework for localized failure in quasi-brittle solids: material model and strain localization analysis
(2016-06)
Article
Open AccessAiming for the modeling of localized failure in quasi-brittle solids, this paper addresses a thermodynamically consistent plastic-damage framework and the corresponding strain localization analysis. A unified elastoplastic ... -
Accelerated viaduct construction
(2020)
Conference report
Restricted access - publisher's policyModern geometrical requirements for high capacity ground infrastructure, as highways or high speed train lines, imply increasing number of long tunnels and viaducts in mountainous countries. Moreover, for the sake of the ... -
Advantages of pre-cast concrete in airport construction
(Universitat Politècnica de Catalunya, 2020-02)
Master thesis
Open Access
Covenantee: České vysoké učení technické v Prazeprefabrication in infrastructural development with a focus on airport construction and its necessity for the project's short duration. The technology of precast panels is explained in the first part of the thesis including ... -
Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model
(Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model, 1996)
Article
Open AccessOxidation and hydration of sulfides in aggregate materials can yield to expansive reactions that affect the durability of concrete. This process is, in principle, independent from the potential alkali-aggregate reactivity, ... -
Alternative methodology to consider damage and expansions in external sulfate attack modeling
(2014-09-01)
Article
Open AccessA diffusion–reaction numerical model is proposed to simulate the response of concrete exposed to external sulfate attack. Diffusion properties are modified based on the strain reached and the ratio of porosity filled by ... -
Alto desempenho: o concreto armado do século XXI?
(Universitat Politècnica de Catalunya, 2007)
Article
Open AccessThis work is about the 21st century reinforced concrete analysis under the point of view of its constituent materials. First of all it is described the theoretical approach of the bending elements calculated based on the ... -
An accurate nonlocal bonded discrete element method for nonlinear analysis of solids: application to concrete fracture tests
(Springer, 2020-05)
Article
Open AccessWe present a numerical procedure for elastic and nonlinear analysis (including fracture situations) of solid materials and structures using the discrete element method. It can be applied to strongly cohesive frictional ... -
An elastic plastic damage formulation for concrete: application to elementary and structural tests
(2006-11)
Article
Open AccessPure elastic damage models or pure elastic plastic constitutive laws are not totally satisfactory to describe the behaviour of concrete. They indeed fail to reproduce the unloading slopes during cyclic loading which define ... -
An experimentally validated study for open rib profiles steel-concrete composite slabs behavior in partial connection
(2019)
Conference report
Open AccessIn this paper the strength of steel deck-concrete composite slabs is studied. Conventional slabs with open and dovetail profiles are studied with different designs, galvanized and stainless steel. Partial connection method ... -
Analisis numérico 2D y 3D del ataque sulfático externo en hormigón
(Universitat Politècnica de Catalunya, 2018-09)
Master thesis
Open AccessLa degradación por ataque sulfático externo en hormigón se genera tras la entrada de iones sulfato que se difunden por los poros de la pasta de cemento. Los iones se combinan con la portlandita existente en la pasta creando ... -
Analysis of interlayer bond in 3D printed concrete
(Universitat Politècnica de Catalunya, 2022-10-14)
Master thesis
Open Access
Covenantee: BAMLa tecnologia d'impressió 3D està canviant la manera de fabricar molts productes avui dia, des de braços protètics fins a reactors nuclears. Amb el sector de la construcció avançant cada dia cap a solucions més industrialitzades, ... -
Analysis of slab-column connections in CFT sections without continuity of the tube
(Universitat Politècnica de València, 2018)
Conference report
Open AccessThe conference is intended to provide a forum to discuss the recent progress and advances in the research, design and practice of steel-concrete composite as well as hybrid structures. The general topics are focussed on ... -
Analysis of structural second order effects on a floating concrete platform for FOWT's
(Elsevier, 2016-09)
Article
Open AccessThe irruption of the floating wind energy in the offshore engineering is changing the paradigm of the structural analysis for those new structures, which are significantly smaller and more slender than those previously ... -
Anàlisi comparativa de l'empremta de carboni d'una nau industrial projectada amb estructura prefabricada de formigó i una d'estructura metàl·lica
(Universitat Politècnica de Catalunya, 2022-10-25)
Bachelor thesis
Open Access
Covenantee: Instituto Español del Cemento y sus AplicacionesAquest treball es contextualitza dintre de la creixent importància de tenir en compte els criteris de sostenibilitat en el desenvolupament dels projectes. L’objectiu és proposar una metodologia per a comparar el cost i ...
