Evaluation of Compressive and Bending Strength of a Geopolymer Based on Lateritic Clays as an Alternative Hydraulic Binder

In Bolivia, lateritic soils are common in humid tropical regions and can be used in the construction industry as an alternative to materials that cause a negative environmental impact, such as cement. The production of Portland cement causes environmental issues like significant greenhouse gas emiss...

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Bibliographic Details
Published in:Materials Vol. 17; no. 2; p. 307
Main Authors: Ochoa, Walter A Abujder, Málaga, Moisés A Sánchez, Tapia, Arturo Brañez, Calabokis, Oriana Palma, Nuñez de la Rosa, Yamid E, Viscarra Chirinos, Gunther E, Pinto Lavayén, Sebastián N
Format: Journal Article
Language:English
Published: Switzerland MDPI AG 01-01-2024
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Summary:In Bolivia, lateritic soils are common in humid tropical regions and can be used in the construction industry as an alternative to materials that cause a negative environmental impact, such as cement. The production of Portland cement causes environmental issues like significant greenhouse gas emissions and air pollution. To address this problem, geopolymers have been introduced as an alternative binder with low CO emissions. In this regard, geopolymers based on lateritic clays have been studied mineralogically, chemically, and on their compressive strength separately. However, there are still no studies on lateritic clays present in Bolivia and their mechanical, mineralogical, and chemical properties combined in a geopolymer. Therefore, this present research proposes the evaluation of a geopolymer made from laterite clays. Compression and flexural tests were carried out, along with mineralogical and chemical analyses on mortar and geopolymer cubes and prisms. The results indicate that the laterite clay-based geopolymer has lower compressive strength compared to Portland cement IP (cement type I with the addition of pozzolana) mortar. However, the flexural strength tests show a slight increase in the case of the geopolymer.
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ISSN:1996-1944
1996-1944
DOI:10.3390/ma17020307