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[en] This paper describes and compares results between articles, for this, 4 relevant topics were selected in reinforcements to wood beams of different types and tree origin [1, 2, 3, and 4], found in the literature or status of the Art. On the samples of the literature to be compared, it was considered for the choice that the selected articles have similar approaches and have similar mechanical tests as: tensile strength, resistance to the average flexion, elasticity module analysis, however, a limitation of the work is the fact that the obtained values cannot be bought in an absolute way since the authors and selected referents apply their research on various configurations of wood beams or different species such as Pine, Beech, Alamo and Fir or even the technique and type of fibre to be used in the reinforcement of such fibres as glass, polymer, bamboo, GFRP, and others made from steel, suggesting a percentage comparison of the improvement or efficiency achieved by the applied methods. Concerning the methodological plan it is noted that the selected samples do not use the same units, this is bought according to relative values or percentage of variation according to the type of test, in which a comparison is made with the control sample (beam without backup) and a reinforced or repaired selected beam (which was selected according to the best achieved or as a sample in which the reinforcement is not invasive). The comparison between work referents concludes that these constructive solutions (repair and reinforcement) provide benefits or contributions to the mechanical characteristics of structural elements of wood, shaping an attractive concept for the development of applications in the field of building and civil construction, as: The variation of the elasticity Module, when using a method of repair / reinforcement with organic fibres (the case of Bamboo) is negative . The highest contributions or percentage increases in the elasticity Module and the breakage 126 Module are obtained when synthetic materials are used, for the matter, the GFRP fibre (F. glass + polymer) and the GFRP bar respectively [2 and 3]. The lowest results in the variation of the breakage Module are obtained by using a repair method / reinforcement with glass fibres , however, when using reinforcement with glass materials plus bar polymers, this reaches the highest value on the MOR . The wood beam (Abeto laminate) reinforced with steel bars  represents the highest result of bending resistance
[en] The passive design represents a solution to the energy issue in dwellings. We should highlight the existence of several elements that take belong to the field of passive design. This work aims to study de relation between the implementation of a passive design plus an active- passive design (use of renewable energy) to apply on a dwelling and the resulting energy saving. The object of study is a 100 sq. meter dwelling placed in the top floor of a seven story building in Villaverde (Madrid). To begin Design Builder software  was used, that reaches just up to energy consumption issues. In order to know the contributions about energy saving, a comparative analysis between both (original and modified) Design Builder models. 3D models in Revit and SketchUp were done in order to make a preliminary analysis. Then a passive and an active- passive designs were chosen and keeping in mind the features of the base dwelling, using Design Builder software, for a first approach and analysis of the original model and the proposed one. At the calculation phase original model’s energy requirements were observed in order to be later compared to those of the modified model...
[en] At present, building is considered one of the most polluting activities , however, the sector is becoming aware and taking responsibility for the impact it generates throughout the life cycle of buildings . In the development of the idea of sustainability in the construction, it has been investigated in studies related to the improvement of the conditions of comfort and improvement of the quality of life of the people. In this sense, there are many studies found that intend to incorporate sepiolite for its properties in various materials for the absorption of formaldehydes . Therefore and in view of the results obtained by other authors, the design of a prefabricated panel for indoor false ceiling is proposed. The base material of this panel will be a plaster with sepiolite load in its composition to get it to help improve the indoor air quality of the homes in which it is installed. To achieve the objective, an experimental plan has been developed, divided into three phases: In the first phase, gypsum and plaster were used, following the technical prescriptions of Norma UNE-EN-13279: Yesos de construcción y conglomerantes a base de yeso para la construcción . Said norm, specifies the requirements that this type of material must comply with in terms of hardness, bending and compression, which are the parameters taken into account for this study...