Development of Methodology for the Characterization and Incorporation of Waste from the Paper Industry in Cementitious Materials
The paper industry produces a huge amount of waste of different types, which are usually made up of kaolin and cellulose and are extremely humid. After the generation process, these materials are destined to primary settling tanks for later disposal in sanitary landfills. There are currently several studies that aim to incorporate this residue in cementitious materials, but excess moisture has always been a problem in the beneficiation stage. The objective of this work is to compare the incorporation of the residue in its dry and liquid state in mortars, evaluating for this technological characteristic such as consistency, incorporate air content and mechanical resistance to compression and bending. The results show that the inclusion in the liquid state favors technological issues in addition to being economically more feasible, in addition, 2.5% of the incorporation in relation to the amount of water was compatible with values in the literature.
KeywordsWaste Paper industry Sustainability
The authors thank the Brazilian agencies CNPq, CAPES and FAPERJ for the support provided to this investigation.
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