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Due to the specific physical, chemical and mechanic al properties, the worldwide production of geopolymers is increasing systematica lly. The high mechanical resistance and the low sensitivity to the high temper ature result in the application of geopolymers in many sectors of economy, especially in civil engineering. Additionally, the low emission of carbon dioxide caused tha t geopolymers are often called „green” material. The wide range of the application of geopolymers requires new substances which could be used in their production. From environmental point of view, the use of waste products in the production o f ge polymers is the best solution. Due to the content of silica and aluminum, asbestos dust might be successfully used in the synthesis of geopolymers. This article prese nts the possibility of recycling of asbestos waste and coal fly ashes in the production of geopolymer concrete. The final product of this method might be used in the c onstruction industry without the risk for the environment. The proposed solution ena bles to utilize the harmful material, i.e. asbestos dust in accordance with the was te hierarchy and sustainable development.

Waste in the geopolymerization process. Proposal of the use of asbestos and fly ashes in the production of geopolymer concrete