Evaluation of the Potential of Waste from Pulp Production (Grits) in its Use in Mortar: Physical and Chemical Characterization
| Autor: | Carol Ferreira Rezende Santos, Leonardo Gonçalves Pedroti, Leonardo Carvalho Mesquita, Ana Augusta Passos Rezende, Rita de Cássia Silva Sant’Ana Alvarenga, Murilo L. Gravino, José Maria Franco de Carvalho, Adonys Natan Oliveira Alvares |
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| Rok vydání: | 2015 |
| Předmět: |
Inert
Materials science Absorption of water Waste management Mechanical Engineering Pulp (paper) engineering.material Condensed Matter Physics Pulp and paper industry Industrial waste law.invention Portland cement Kraft process Mechanics of Materials law engineering General Materials Science Leaching (metallurgy) Mortar |
| Zdroj: | Materials Science Forum. 820:583-587 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.820.583 |
| Popis: | The grits is an inorganic solid residue generated during the Kraft process by the pulp and paper industry, which presents in its composition the main ingredients of Portland cement. According to some authors, the grits can be classified as a non inert, non hazardous, granular solid industrial waste. With this in mind, a study was proposed with the objective of evaluating, initially, the applicability of grits in mortar, by means of physical and chemical testing. The physical evaluations were realized through the following tests: determination of bulk gravity saturated - surface - dry (SSD) and water absorption; determination of the pulverulent material content; and the determination of particle size distribution. To chemically test the grits, a reading of the metal concentrations present in the grits was realized as well as an analysis of the leaching and solubilization extracts. It was concluded that the addition of grits to mortar is a potential alternative. |
| Databáze: | OpenAIRE |
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