Tese de mestrado integrado. Engenharia Civil (Especialização em Construções). Faculdade de Engenharia. Universidade do Porto. 2009

Tese de doutoramento. Engenharia Civil. Faculdade de Engenharia. Universidade do Porto. 2010

This diploma thesis discusses the problems of defects and faults of external thermal insulation composite systems. The first part describes the correct procedures for application systems, the next part describes defects, faults and their causes and the end of the thesis describes the contactless diagnostic methods used for the survey of ETICS. This part is mainly focus on detection of anchors. The example shows the calculation of anchoring.

Tese de mestrado integrado. Engenharia Civil (Construções). Universidade do Porto. Faculdade de Engenharia. 2011

The diploma thesis subject is the proposal of the winery with a focus on the production of quality wine with the attribute and with a capacity of 30 000 bottles per year. The winery provides the possibility of accommodation in 6 units with a total capacity of 14 people with extension for meals. The viticulture is situated in the outskirts of Popice. The winery consists of three first floor detached buildings of a broken elongated shape, SO 01, SO 02 and SO 03, the first one is partially sub-basement. The SO 01 has wine production character in the cellar, the first floor provides background for employees, creates administrative spaces and offers catering for the public. Objects SO 02 and SO 03 serve to accommodate guests, the first one taking into account barrier-free use. Construction system is brick wall, in first floor of ceramic blocks and the cellar from blocks of lost formwork filled with concrete. The façade consists of an ETICS thermal insulation composite system and a ventilated façade. Cellar ceiling structures are solved with monolithic reinforced concrete slabs. The objects are roofed with gable and shad roofs with titan-zinc roof covering and bearing structure made of glued lamellar wood trusses.

This diploma thesis deals with the study of resistance of ETICS surface treatments to biotic attack. The theoretical part elaborates a research focused on biotic attack of facades of buildings insulated by contact insulation systems ETICS. Based on the information obtained during the elaboration of the bachelor thesis and further study, the optimization methodology of ETICS surface treatment resistance to biotic attack proposed in 2018 is elaborated. In the practical part, the proposed methodology is verified, evaluated and recommendations concerning the suitability of using the proposed methodology in construction practice are implemented.

External thermal insulation composite system (ETICS) is a widespread method appearance of the facades of existing and new civil and industrial buildings. With its frequent application becomes engaged his durability issues and possible rehabilitation and more topical. Influences affecting durability ETICS is still under investigation, as well as systematic and practical way to usable redevelopment. The main theme of this work is to summarize knowledge in ETICS issue, particularly from the viewpoint adhesive and leveling materials based on Portland cement and final finishes. The theoretical part is discussed ETICS composition, the composition of its components, technical requirements and factors affecting durability. The experimental part focuses on the redevelopment of ETICS and verification using colloidal silica for modification of construction materials, which are part of the ETICS.

Un système d'Isolation Thermique par l'Extérieur (ITE) des bâtiments est un composite complexe constitué de plusieurs couches de matériaux ayant un grand contraste de propriétés physiques : plaque isolante, enduit renforcée par une armature en fibres de verre, enduit de décoration et de protection, etc. Les sollicitations environnementales et mécaniques que subit le système au cours de son cycle de vie conduisent à un état de contraintes différentes selon les différentes couches constituant le système. Cet état de contraintes est responsable du développement de désordres (fissures et décohésion) dans la couche de mortier de protection. Ces désordres ont un impact direct sur la durabilité du système dans son ensemble. L'objectif de cette thèse est ainsi de comprendre le comportement mécanique d'un système ITE dans son ensemble en nous focalisant sur la couche de mortier en tant que composant clef de la durabilité du système. Les mortiers ITE ont une formulation spécifique dont les propriétés physiques et mécaniques sont adaptées aux exigences du système complet. Généralement, un mortier ITE est d'origine minérale et modifié avec des polymères afin d'améliorer sa souplesse et son adhérence sur le support d'application. Nous avons considéré divers paramètres de formulation, toutefois, le cœur de cette étude concerne l'influence des poudres de polymère redispersable (PPR) sur le comportement mécanique d'un mortier ITE. Ces PPR sont utilisés dans la pratique principalement pour leurs propriétés plastifiantes et d'adhérence, mais ils ont également un impact sur la porosité du matériau, d'où l'intérêt d'utiliser la tomographie pour quantifier cet effet. Pour caractériser l'impact des PPR sur les propriétés mécaniques, nous avons utilisé l'essai de fendage. Les essais mécaniques sont couplés avec de l'imagerie optique en surface et tomographique en volume. Cela nous a permis de caractériser aussi bien les champs de déformation surfaciques que les modes d'endommagement en surface et en volume. Le technique de corrélation d'images numériques a été exploitée pour effectuer des études quantitatives. A l'échelle du système ITE, les outils mécaniques expérimentaux sont inexistants dans la littérature. Grâce à des essais innovants de flexion 3-points jusqu'à rupture sur des échantillons d'un système d'ITE, nous avons pu considérer le comportement mécanique du système dans son ensemble (isolant-enduit). Nous avons ainsi constaté un comportement de type "système" et non de type "matériau". Nous avons dans un premier temps mis en évidence l'impact significatif du type de revêtement de finition sur la réponse mécanique du système. Le comportement en volume (3D) a été également étudié à l'aide d'essais in-situ sous tomographe suivi d'une analyse de la cinématique par corrélation d'images volumiques. Nous avons notamment mis en évidence le rôle de l'armature dans la propagation de fissures dans le cœur du système. Enfin, nous avons proposé les premières tentatives de mise au point d'un essai à l'anneau multicouche permettant de générer des contraintes thermomécaniques pour qualifier les systèmes ITE. / Nowadays ETICS (External Thermal Insulation Composite System) are largely used to improve the energy efficiency of both new and existing buildings. They are complex structures composed of several layers characterized by different physical properties. Typical ETICS components are adhesive, thermal insulation material, reinforced basecoat (reinforcing glass fiber mesh embedded in it), finishing coat and/or decorative coat, and accessories, etc. During its lifecycle the system is meant to experience several environmental solicitations, including chemical, thermal and mechanical stresses. Each layer of an ETICS has a different response to these stresses, which may lead to development of disorders such as cracking or debonding in the finishing layer. These disorders have a direct impact on the durability of ETICS implementation. The main goal of this thesis is to investigate the mechanical behavior of ETICS. We focus in particular on the behavior of the basecoat, which is a key component for durability.Finishing coats of ETICS are specifically mix-designed to fulfill several requirements for the whole system. Generally, it is composed of a mineral mortar with additives, as polymers and fibers, to improve flexibility and grip on the final support. We considered various formulation parameters; however, the main focus of this study is on the impact of redispersible polymer powders (RPP) on the mechanical behavior of these ETICS mortars. Addition of RPP significantly increases the deformability and adhesion properties of the material. RPP also impacts the porosity of the material. Tomography is especially suitable for quantifying this impact. In order to characterize the impact of PPR on the mechanical properties, we used a splitting test. The mechanical tests are coupled with optical imaging and 3D computed microtomography (CT). This allowed characterizing the 2D deformation as well as the superficial and volume damage mechanisms. The Digital Image Correlation (DIC) technique has been exploited to perform quantitative studies.To the best of our knowledge studies of the mechanical behavior of ETICS as a system has never been reported in the literature. In the present investigation 3-point flexural tests have been developed to deal with the mechanical behavior, including damage, of ETICS samples. The tested samples comprise both the isolating system and the different mortar layers. We in particular demonstrated the significant impact of the properties of the finishing layer on the mechanical response of the system. The behavior in volume (3D) was also considered through in situ flexural tests performed within a Tomograph. CT images were used to determine the 3D deformation field using the volumetric image correlation technique. In particular, we highlighted the role of the reinforcement mesh in the propagation of cracks inside the system. Finally, we present the first attempts to implement a simple test based on a multilayer ring that generates thermo-mechanical stresses, which may be used to qualify the durability of ETICS.

The subject of this thesis is sports centre, which servers for sport and relax. The building is in town Okříšky, location U Stadionu, region Třebíč. It is three-floor building in basement there is technology for pools, on the 1´st floor, there is entrance, cloakroom, sanitary facilities, technical facilities and facilities for staff, on the 2nd there is snack bar and fitness. Irregularly-snaped Floor plan. The object (part of cloakroom and fitness) is designed from load cast-in-place concrete frame with clay masonry thickness 300 mm, floor structure-reinforced concrete joist floor, insidle load walls thickness 300 mm, thermal insulation of externall wall by system ETICS – thickness 200 mm, foundation construction – pads with grillages, load wall in the 1st floor is from reinforced concrete thickness 300 mm, roofing with warm flat roof and one mono-pitched roof from glued laminated girder. Part of swimming hall is made of load reinflorced concrete columns, supported by foundation pads, column braced by beams, clay masonry thickness 300 mm, load external wall of reinforced concrete thickness 500 mm, thermal insulation ETICS 200 mm, roofing of the hall with glued laminated girder – roof type compact.

This diploma thesis deals with study of the moisture-transport properties of polymer cementious ETICS mortars at different doses of redispersible polymer powder. The effect of aerate on these screeds is also investigated. The thesis also evaluates the effect of use various external surface treatments due to risk of cumulate moisture in the perimeter structure.