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Mortars and colored concrete are used in construction for the execution of masonry blocks, tiles and other building elements and materials that complement the aesthetic appearance of buildings, contributing to their architectural finishing. Pigments are usually used for coloring of the mortars and concretes based on cement mineral. The organic pigments are used in a more limited extend for this purpose. The life time of the facades realized with silicate cement largely depends on the compatibility between pigment ...

New building materials were obtained in the last decades by using different types of cements, aggregates, additives or additions. Additions such as s powder, aggregate, fiber, etc. were tested for obtaining new properties of concrete or for finding a way to consume the wastes. The paper presents the experimental results obtained on fly ash concrete with waste fibers. The concrete was prepared with substitution of cement with fly ash in different dosages (10%, 15%, 20%, 30% and 40%) and two types of fibers (hemp an...