Methodology for Cement Manufacturing Application

Main Article Content

A. K. C. Santos
A. S. Messias
S. C. de Paiva

Abstract

The narrowing between technological and sustainable development comes as one of the main challenges for the scientific environment and the modern company. In this scenario, waste recycling is considered an alternative for preservation of non-renewable natural resources and the environment, as a possibility of reducing energy consumption, carbon dioxide generated in the manufacture of traditional materials, and consequently, an economic advantage. The interrelationship between the steel segment and the civil segment show the opportunity of using the slag generated in the steelmaking by the cement industry. However, one of the challenges of using this co-product as cementitious input is the chloride ion contamination of unknown origin. This research aimed to propose a method to ensure the technical feasibility of using slag generated in steel refining, aiming to eliminate the chloride anion as impurity. Four samples collected from different points of the steelmaking process were studied, applying a wash with distilled water to the non-soluble solid residue, in order to extract the contaminating ion. It was evidenced that, after contact between solid residue and water, in the first wash, the performance presented an efficiency within the average range of 92 to 93%. Thus, after the practice of a simple method of chloride extraction with liquid fluid, the steel slag can be applied without restriction as an alternative material and input in cement production. Achieving the satisfactory result, a figurative prototype was built in order to enable the industrial scale to perform the same procedure performed in the laboratory.

Keywords:
Steel industry, slag, cement factory, experimental procedure, prototype.

Article Details

How to Cite
Santos, A. K. C., Messias, A. S., & de Paiva, S. C. (2019). Methodology for Cement Manufacturing Application. Current Journal of Applied Science and Technology, 38(6), 1-6. https://doi.org/10.9734/cjast/2019/v38i630427
Section
Original Research Article

References

CNI. National Confederation of Industry. The steel industry in Brazil: Brazil Steel Institute. Brasilia: CNI; 2017.

ABNT. Brazilian Association of Technical Standards. ABNT NBR 12.655: Portland cement concrete - preparation, control and receiving - procedure. Rio de Janeiro: ABNT; 2015.

BRAZIL. Law n. 12,305 of August 2, 2010. Establishes the National Policy on Solid Waste; amends Law 9605 of February 12, 1998; and makes other arrangements. Official Gazette: Brasilia, August 2; 2010.

Arrivabene LF. Addition of waste from the granite industry in BOF steel slag aiming its use in cement production. Thesis (Doctorate in Metallurgy and Materials) - Postgraduate Program in Metallurgy and Materials, University of São Paulo, São Paulo. 2012;165.

Neville AM. Concrete properties. 5. Ed. Porto Alegre: Bookman. 2016;888.

Theiss AF. Evaluation of concrete steel corrosion with the addition of migratory corrosion inhibitor in the face of chloride ion action. Postgraduate in Civil Engineering, University of Santa Catarina (Master). 2019;120.

Saints LAML. Determinants of steel consumption: A panel data analysis. Course Conclusion Paper (Undergraduate) - Undergraduate Course in Economic Sciences, Federal University of Juiz de Fora, Governador Valadares. 2018;28.

Ferreira PRR. Analysis of chloride corrosion induction in reinforced concrete with the addition of crushed brick residue from accelerated tests. Postgraduate in Civil Engineering, Federal University of Pernambuco (Master). 2015;229.

Gartner N, Kosec T, Legat A. The efficiency of a corrosion inhibitor on steel in a simulated concrete environment. Materials Chemistry and Physics. 2016;184:31-40.

Torres AS. Chloride corrosion in reinforced concrete structures: A meta-analysis. Thesis (Doctorate in Civil Engineering), Federal University of Rio Grande do Sul, Porto Alegre. 2011;170.

ABNT. Brazilian Association of Technical Standards. ISO 14.001: Environmental management systems - Requirements with guidelines for use. Rio de Janeiro: ABNT; 2015.
Available:https://edisciplinas.usp.br/pluginfile.php/3203062/mod_folder/content/0/NBRISO14001.pdf?forcedownload=1
(Accessed on: 09 Oct. 2019)

ABNT. Brazilian Association of Technical Standards. ABNT NBR 10.007: Sampling of solid waste. Rio de Janeiro: ABNT; 2004.

ABNT. Brazilian Association of Technical Standards. ABNT NBR 10.005: Procedure for obtaining leached extract from solid waste. Rio de Janeiro: ABNT; 2004.

APHA, AWWA, WEF. Standard methods for the examination of water and wastewater. 22. Ed. Washington: American Association of Public Health, APHA; 2012.

Oliveira IMF, Silva MJSF, Tófani SFB. Fundamentals of analytical chemistry: Factors that affect the solubility of precipitates. Minas Gerais: UFMG; 2009.
Available:http://www.ufjf.br/quimicaead/files/2013/05/FQAnalitica_Aula11.pdf
(Access on: 14 Sep. 2019)