http://hdl.handle.net/2117/14151 Wed, 22 May 2013 22:26:29 GMT 2013-05-22T22:26:29Z webmaster.bupc@upc.edu Universitat Politècnica de Catalunya. Servei de Biblioteques i Documentació no http://hdl.handle.net/2117/19196 Title: Carbonation of ternary building cementing materials Authors: Fernández Carrasco, Lucía; Torrens Martín, David; Martínez Ramírez, Sagrario Abstract: The carbonation processes of ettringite and calcium aluminate hydrates phases developed by hydration of calcium aluminate cement, fly ash and calcium sulphate ternary mixtures have been studied. The hydrated samples were submitted to 4% of CO2 in a carbonation chamber, and were analysed, previous carbonation and after 14 and 90 days of carbonation time, by infrared spectroscopy and X-ray diffraction; the developed morphology was performed with the 14 days carbonated samples. The results evidenced that ettringite reacts with CO2 after 14 days of exposition time and evolves totally at 90 days; the developed hydrated phases C3AH6 in samples with major CAC content, also reacts with CO2. Due to carbonation, calcium carbonate – mainly vaterite but also aragonite-, depending on the initial formulation, aluminium hydroxide and gypsum were detected. Tue, 14 May 2013 10:07:32 GMT http://hdl.handle.net/2117/19196 2013-05-14T10:07:32Z Fernández Carrasco, Lucía; Torrens Martín, David; Martínez Ramírez, Sagrario no CAC, Calcium sulphate, Carbonation, Ettringite, Fly ash The carbonation processes of ettringite and calcium aluminate hydrates phases developed by hydration of calcium aluminate cement, fly ash and calcium sulphate ternary mixtures have been studied. The hydrated samples were submitted to 4% of CO2 in a carbonation chamber, and were analysed, previous carbonation and after 14 and 90 days of carbonation time, by infrared spectroscopy and X-ray diffraction; the developed morphology was performed with the 14 days carbonated samples. The results evidenced that ettringite reacts with CO2 after 14 days of exposition time and evolves totally at 90 days; the developed hydrated phases C3AH6 in samples with major CAC content, also reacts with CO2. Due to carbonation, calcium carbonate – mainly vaterite but also aragonite-, depending on the initial formulation, aluminium hydroxide and gypsum were detected. http://hdl.handle.net/2117/18957 Title: Recycling silicon solar cell waste in cement-based systems Authors: Fernández Carrasco, Lucía; Ferrer, R.; Aponte Hernández, Diego Fernando; Fernández, P. Abstract: This is a study of the recycling of crystalline solar cells by incorporating them in cement matrices. The hydration process of a mixture of calcium aluminate cement (CAC) and solar photovoltaic cell waste was researched and analyzed. The nature of the hydration products of various compositions of these mixtures was evaluated at a temperature of 20 1C by analyzing the samples through X-ray diffraction, infrared spectroscopy and scanning electron microscopy. The total porosity and mechanical strength development of these materials were also determined. It was revealed that the presence of a solar cell residue of up to 5% in the cement matrices does not result in new hydration products that are different from those derived from the normal hydration of the CAC cement. Moreover, the material developed can be considered as an expansive cement blend because it releases H2 at early stages. The presence of waste causes a decrease in the mechanical strength and an increase in the total porosity of this material, but it can be used for applications such as thermal insulation Tue, 23 Apr 2013 12:39:32 GMT http://hdl.handle.net/2117/18957 2013-04-23T12:39:32Z Fernández Carrasco, Lucía; Ferrer, R.; Aponte Hernández, Diego Fernando; Fernández, P. no Solar cells, Silicon, Recycling, New applications, Building This is a study of the recycling of crystalline solar cells by incorporating them in cement matrices. The hydration process of a mixture of calcium aluminate cement (CAC) and solar photovoltaic cell waste was researched and analyzed. The nature of the hydration products of various compositions of these mixtures was evaluated at a temperature of 20 1C by analyzing the samples through X-ray diffraction, infrared spectroscopy and scanning electron microscopy. The total porosity and mechanical strength development of these materials were also determined. It was revealed that the presence of a solar cell residue of up to 5% in the cement matrices does not result in new hydration products that are different from those derived from the normal hydration of the CAC cement. Moreover, the material developed can be considered as an expansive cement blend because it releases H2 at early stages. The presence of waste causes a decrease in the mechanical strength and an increase in the total porosity of this material, but it can be used for applications such as thermal insulation http://hdl.handle.net/2117/18601 Title: Hacia sistemas y productos más arquitectónicos, constructivos e industriales Authors: Pons Valladares, Oriol Thu, 04 Apr 2013 10:49:04 GMT http://hdl.handle.net/2117/18601 2013-04-04T10:49:04Z Pons Valladares, Oriol no http://hdl.handle.net/2117/17197 Title: Infrared spectroscopy in the analysis of building and construction materials Authors: Fernández Carrasco, Lucía; Torrens Martín, David; Morales, L.M.; Martínez Ramírez, Sagrario Mon, 07 Jan 2013 15:02:37 GMT http://hdl.handle.net/2117/17197 2013-01-07T15:02:37Z Fernández Carrasco, Lucía; Torrens Martín, David; Morales, L.M.; Martínez Ramírez, Sagrario no http://hdl.handle.net/2117/17077 Title: Purpose driven computational design teaching Authors: Soriano Botella, Enrique; Tornabell Teixidor, Josep; Sastre Sastre, Ramon Tue, 04 Dec 2012 15:20:16 GMT http://hdl.handle.net/2117/17077 2012-12-04T15:20:16Z Soriano Botella, Enrique; Tornabell Teixidor, Josep; Sastre Sastre, Ramon no http://hdl.handle.net/2117/16990 Title: Pabellon JUKBUIN. El trenzado triaxial como sistema constructivo. Authors: Sastre Sastre, Ramon; Soriano Botella, Enrique; Tornabell Texidor, Josep Wed, 21 Nov 2012 16:28:42 GMT http://hdl.handle.net/2117/16990 2012-11-21T16:28:42Z Sastre Sastre, Ramon; Soriano Botella, Enrique; Tornabell Texidor, Josep no http://hdl.handle.net/2117/16989 Title: Materiales edificatorios en una construcción industrializada ecológica Authors: Zamora i Mestre, Joan-Lluís Wed, 21 Nov 2012 16:04:41 GMT http://hdl.handle.net/2117/16989 2012-11-21T16:04:41Z Zamora i Mestre, Joan-Lluís no http://hdl.handle.net/2117/16863 Title: Proyecto FB720 : Informe sobre el análisis de ciclo de vida de los materiales Authors: Wadel Raina, Gerardo Fabian; Alonso, Pol; Zamora i Mestre, Joan-Lluís Abstract: Document resultant de la col·laboració de la UPC en el projecte de recerca IDI-20090761 finançat pel CDTI Wed, 07 Nov 2012 17:35:20 GMT http://hdl.handle.net/2117/16863 2012-11-07T17:35:20Z Wadel Raina, Gerardo Fabian; Alonso, Pol; Zamora i Mestre, Joan-Lluís no Document resultant de la col·laboració de la UPC en el projecte de recerca IDI-20090761 finançat pel CDTI http://hdl.handle.net/2117/16675 Title: Typological and structural system in traditional timber roof of multi-aisle buildings in Europe Authors: Rodríguez, Vladimir; Avellaneda Diaz-Grande, Jaime Mon, 08 Oct 2012 14:13:24 GMT http://hdl.handle.net/2117/16675 2012-10-08T14:13:24Z Rodríguez, Vladimir; Avellaneda Diaz-Grande, Jaime no http://hdl.handle.net/2117/16674 Title: Traditional external timber cladding in mediterranean climates Authors: Burgos Leiva, Camila; Avellaneda Diaz-Grande, Jaime; Rodríguez, Vladimir Mon, 08 Oct 2012 14:08:07 GMT http://hdl.handle.net/2117/16674 2012-10-08T14:08:07Z Burgos Leiva, Camila; Avellaneda Diaz-Grande, Jaime; Rodríguez, Vladimir no http://hdl.handle.net/2117/16673 Title: Computer-simulation research on building-facade geometry for fire spread control in buildings with wood claddings Authors: Giraldo, Maria P.; Avellaneda Diaz-Grande, Jaime; Lacasta Palacio, Ana María; Rodríguez, Vladimir Mon, 08 Oct 2012 13:59:33 GMT http://hdl.handle.net/2117/16673 2012-10-08T13:59:33Z Giraldo, Maria P.; Avellaneda Diaz-Grande, Jaime; Lacasta Palacio, Ana María; Rodríguez, Vladimir no http://hdl.handle.net/2117/16637 Title: Computer-simulation research on building-facade geometry for fire spread control in buildings with wood claddings Authors: Giraldo, Maria P.; Avellaneda Diaz-Grande, Jaime; Lacasta Palacio, Ana María; Rodríguez, Vladimir Abstract: Wood is a unique material with respect to fire. Despite being combustible, it is a stable structural element when confronted with flame due to its low thermal conductivity and characteristics of its chemical degradation (Pyrolysis). The level of fire resistance is determined by the mass, size, and configuration of the constructive elements used. When wood is used as a cladding material, takes the form of boards, plates, or other thin strips, therefore its behavior is subject to its combustibility. This risk is why building fire-safety codes and regulations in many countries have been increasingly restricting the use of combustible claddings. In this study we used modeling techniques and computer fire simulations to evaluate the influence of facade configuration on fire trajectory and the level of protection it can offer at the facade surfaces. Based on our results, it is possible to consider the use of horizontal projections, provided that they are of sufficient size (greater than 1.2m), to control the spread of fire and heat flow on the building’s facade. The study was performed using field models of computational fluid-dynamics. Particularly through the software: Fire Dynamics Simulator (FDS) to solve numerically the mathematical integration models, PyroSim for the graphical interface, and Smokeview for viewing the results Thu, 04 Oct 2012 10:49:46 GMT http://hdl.handle.net/2117/16637 2012-10-04T10:49:46Z Giraldo, Maria P.; Avellaneda Diaz-Grande, Jaime; Lacasta Palacio, Ana María; Rodríguez, Vladimir no Wood is a unique material with respect to fire. Despite being combustible, it is a stable structural element when confronted with flame due to its low thermal conductivity and characteristics of its chemical degradation (Pyrolysis). The level of fire resistance is determined by the mass, size, and configuration of the constructive elements used. When wood is used as a cladding material, takes the form of boards, plates, or other thin strips, therefore its behavior is subject to its combustibility. This risk is why building fire-safety codes and regulations in many countries have been increasingly restricting the use of combustible claddings. In this study we used modeling techniques and computer fire simulations to evaluate the influence of facade configuration on fire trajectory and the level of protection it can offer at the facade surfaces. Based on our results, it is possible to consider the use of horizontal projections, provided that they are of sufficient size (greater than 1.2m), to control the spread of fire and heat flow on the building’s facade. The study was performed using field models of computational fluid-dynamics. Particularly through the software: Fire Dynamics Simulator (FDS) to solve numerically the mathematical integration models, PyroSim for the graphical interface, and Smokeview for viewing the results http://hdl.handle.net/2117/16450 Title: Prototype of façade fb720: Report on the life cycle analysis of the materials. Case study Authors: Wadel Raina, Gerardo Fabian; Zamora i Mestre, Joan-Lluís; Garrido Torres, Pablo Fri, 07 Sep 2012 07:18:22 GMT http://hdl.handle.net/2117/16450 2012-09-07T07:18:22Z Wadel Raina, Gerardo Fabian; Zamora i Mestre, Joan-Lluís; Garrido Torres, Pablo no http://hdl.handle.net/2117/16420 Title: El PVC en la arquitectura textil Authors: Sastre Sastre, Ramon Tue, 04 Sep 2012 09:04:17 GMT http://hdl.handle.net/2117/16420 2012-09-04T09:04:17Z Sastre Sastre, Ramon no http://hdl.handle.net/2117/15112 Title: Evolution to carbonated compounds of phases developed on ternary systems materials Authors: Fernández Carrasco, Lucía; Torrens Martín, David; Morales Martínez, Laura María; Martínez Ramírez, Sagrario; Fernández, Pedro Abstract: The incorporation of supplementary cementitious materials to the cement industry is an alternative to reduce consume of large amounts of raw materials and gives up a huge spectrum of blended cements that have been noted not only for its properties of reducing energy consumption and CO2 emission but also for its well known durability properties. In this research work we evaluate ternary systems from CAC/FA/C$ mixtures, focusing on their durability. Selected formulations in the ternary system CAC/FA/C$ hydrated and carbonated have been studied at 14 and 90 days of carbonation time. The carbonation process of ettringite phases and calcium aluminate hydrates proceeded from different formulations, i.e. calcium aluminate cement, fly ash predominance, and calcium sulphate is analysed and discussed by means of infrared spectroscopy, x-ray diffraction but also mechanical properties of samples. The analysis of the results have shown that developed hydrated compounds depend on formulation; after carbonation process, the ettringite decomposition can promote metastable calcium carbonate polymorphs (aragonite and vaterite) due to inorganic compounds (aluminium hydroxide, gypsum, etc) presence. Long term carbonation of the blended samples analysis by Raman spectroscopy allows the identification of a new hydrated phase with carbonate, sulphate and calcium ions in its structure. Description: Originality This paper describes for the first time a study of the durability of different selected formulations in the ternary system CAC/FA/C$ which substitutes the Portland cement by by-products. On the hydrates characterization, the Infrared and Raman spectroscopies allow the identification of differentiate ettringite structures. Tue, 14 Feb 2012 09:19:55 GMT http://hdl.handle.net/2117/15112 2012-02-14T09:19:55Z Fernández Carrasco, Lucía; Torrens Martín, David; Morales Martínez, Laura María; Martínez Ramírez, Sagrario; Fernández, Pedro no The incorporation of supplementary cementitious materials to the cement industry is an alternative to reduce consume of large amounts of raw materials and gives up a huge spectrum of blended cements that have been noted not only for its properties of reducing energy consumption and CO2 emission but also for its well known durability properties. In this research work we evaluate ternary systems from CAC/FA/C$ mixtures, focusing on their durability. Selected formulations in the ternary system CAC/FA/C$ hydrated and carbonated have been studied at 14 and 90 days of carbonation time. The carbonation process of ettringite phases and calcium aluminate hydrates proceeded from different formulations, i.e. calcium aluminate cement, fly ash predominance, and calcium sulphate is analysed and discussed by means of infrared spectroscopy, x-ray diffraction but also mechanical properties of samples. The analysis of the results have shown that developed hydrated compounds depend on formulation; after carbonation process, the ettringite decomposition can promote metastable calcium carbonate polymorphs (aragonite and vaterite) due to inorganic compounds (aluminium hydroxide, gypsum, etc) presence. Long term carbonation of the blended samples analysis by Raman spectroscopy allows the identification of a new hydrated phase with carbonate, sulphate and calcium ions in its structure.