Employment of Response Surface Methodology for Optimization of the Portland Cement Mechanical Resistance

Abstract:

For this workmixtureswere madewith three types ofPortland cement (CPII,CPIII, and CPIV), which were chosen because theyexhibit: good mechanical properties,lower heat ofhydrationgeneratedin the reaction, greater impermeability, greater resistance to environmentsaggressive.The objectwas to improve themechanical strengthofcementpasteswith the helpof experimental design. Ten different compositionswere prepared, which were tested forcompressivestrengthat 1 and14 days ofcuring. The results illustrated that the first day; the composition showed that the best result was composed of 50% of CP II and 50% of CP III. Already at 14 days, a paste made with 100% of CP III showed better results followed by composition made with 50%CP II and CP III 50%.

• Periodical: Materials Science Forum (Volumes 775-776)
• Pages: 547-552
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.775-776.547
• Online since: January 2014
• Authors: Danielle Nascimento Silva Oliveira, Gelmires Araújo Neves, Ulisses Targino Bezerra, Alexsandra C. Chaves, B. Silveira Lira
• Keywords: Design Mix, Mechanical Strength, Portland Cement

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