%0 Journal Article %A Ibáñez Gómez, Pedro Emilio %T Analysis of possible use of sewage sludge in cement based composites mix design %D 2015 %U http://hdl.handle.net/10317/4670 %X Cement is one of the most important materials in construction nowadays and, probably, it will be used for a long time. It is the main component of concrete, which is the most used material in building structures, and it is essential in prefabrication industry. Concrete is in constant evolution, lots of investigation groups are studying this interesting building material. It is necessary not only for improve the strength resistance of structures with less sections in columns or beams, but also to improve the characteristics against the external factors like CO2, sulphates, chlorides, pure water, acid water… increasing the life of structures and prolonging the life of cities. Cement manufacturing is relatively easy because we can find limestones and clays (main cement components) in some place. However, the concerns are in the environmental because of the limestones and clays after 1500ºC in the oven generates CO2. The study of cement, and the knowledge about macroscopic and microscopic properties of additions and his relation with the concrete is a good starting point to satisfy my curiosity about this topic. In these times, the sustainability is one of the most important factors in the building industry; we have to admit that cement manufacturing is not a clean process with the environment; cement manufacturing is the source of 5% of global CO2, for this reason we have to change something. In this project, my main aim is analyse the possibilities to recycle sewage sludge from waste water treatments plants, cooperating with the environment but we cannot and must not forget the cement properties, decreasing its characteristics to a large degree. The production of sewage sludge generates a high volume of waste, a very important reusing way for sludge is in agricultural practices. However, the properties of sewage sludge depend on the quality of wastewater, for example industrial wastewaters containing heavy metals, in most of cases, cannot be used in agriculture. A possible solution to this problem would be using in cement, where metals are converted into highly insoluble salts, which do not leach at appreciable rates. The aim of this project is to present an analysis of possible use of dried sewage sludge in cement-based composites mix design, performing my own analysis taking into account the last articles and publications about the issue. %K Construcciones Arquitectónicas %K Concrete %K Building structures %K Hormigón armado %K Prefabrication industry %K Edificación %K Industria %~ GOEDOC, SUB GOETTINGEN