Experimental Planning of Mixtures to Obtain Geopolymer

Carlos Eduardo Pereira; José Jailson Nicácio Alves; Romualdo Rodrigues Menezes; José Otávio Peroba Nascimento Santos; Bianca Viana de Sousa

doi:10.4028/www.scientific.net/MSF.798-799.79

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HomeMaterials Science ForumMaterials Science Forum Vols. 798-799Experimental Planning of Mixtures to Obtain...

Experimental Planning of Mixtures to Obtain Geopolymer

Abstract:

This work had the aim to optimize the synthesis process of a geopolymer using experimental planning of mixtures. The geopolymer was prepared with different proportions of bauxite mud (R), rice husk ash (C) and metakaolin (M). The aluminosilicatealkaline activation was made with sodium hydroxide (NaOH) solution of 12 mol/L. Afterwards, the obtained material was submitted through a thermal treatment for 6 hours in an oven followed by a cure time of 28 days at room temperature. The final material was characterized through combinations of different techniques such as Scanning Electron Microscopy (SEM) and X-Ray Diffraction. Through carefully analysis of the flexural strength results, it was possible to conclude that the geopolymeric material (R6C2M) had a greater resistance in the seventh cure day at 0.6 MPa, however, it also can be said that the other samples presented an increase in the resistance over the 28 days of cure time.

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Periodical:

Materials Science Forum (Volumes 798-799)

Pages:

79-84

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.798-799.79

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Online since:

June 2014

Authors:

Carlos Eduardo Pereira*, José Jailson Nicácio Alves, Romualdo Rodrigues Menezes, José Otávio Peroba Nascimento Santos, Bianca Viana de Sousa

Keywords:

Geopolymer, Red Mud e Alkaline Activation

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