Geopolymers are inorganic polymers of a new class of materials that have particular characteristics and are synthesized from geopolymerization reactions of various constituents as natural raw materials of geological origin containing aluminosilicates which give this material good mechanical properties.The need to reduce energy consumption and CO2 emissions is a constant requirement in the Portland cement industry, generating efforts to improve the efficiency of manufacturing processes, as well as the use of waste and by-products from other industries. The geopolymer cement has special characteristics, because it is developed with innovative technology employing mainly clay minerals, in a different way in relation to the traditional cement industry that has as main source of calcareous rock the objective to generate Portland clinker.Geopolymer Concrete Concretes (GCC) are concrete developed from the Geopolymer binder. These concretes present physical and mechanical properties very similar to those presented by High Performance Concrete (CAD).In this work, by means of an adapted dosage of the components that constitute the geopolymer, the concrete of geopolymeric cement (CCG) was developed, which had its peculiarities compared to the Portland cement concrete (CCP), through the fixation of the dosage parameter, as the water / binder ratio.To obtain the metacaulim, it was necessary to calcine the kaolin at a temperature of 850ºC for 2 hours and the residue used was blast furnace slag as the main source of calcium. These raw materials were characterized by EDs and DR-X for the knowledge of the chemical compositions of the geopolymer precursors. Preliminary studies of geopolymer paste and mortar were carried out with 7 days of cure. The best percentages were 45% of Blast Furnace Slag for pulp and 69% of Sand in Mortar. These results were then applied to the study of Geopolymeric Concrete, which were submitted to compression tests at the age of 7 days. The results showed that the GCC reached an average compressive strength of 42 Mpa, in compliance with the initial high strength concrete standard and showing results similar to that of Portland cement concrete.The fracture surfaces were analyzed by scanning electron microscopy (SEM), from the fragments removed from the specimens ruptured in the mechanical assay. The analyzes presented the best adhesion matrix / aggregate in the CCG in comparison to the CCP.
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