Title
Peruvian volcanic ashes as new alternative material in geopolymer preparation: Influence of dissolution concentration and wear resistance
Date Issued
01 January 2020
Access level
open access
Resource Type
conference paper
Publisher(s)
Latin American and Caribbean Consortium of Engineering Institutions
Abstract
This research focuses on the search for materials susceptible to being alkaline activated for the generation of new geopolymer materials (alternative to fly ash and blast furnace slag). The potential use of volcanic ash from the Ubinas volcano (located in Moquegua, Peru) for geopolymer synthesis has been studied. NaOH solution has been used in different concentrations for the activation of volcanic ashes. The effect of the concentration of the NaOH solution on the mechanical properties (compressive strength and porosity) of the hardened specimens has been analyzed. Systems activated with solutions of 6, 9 and 12M has shown a good mechanical performance due to the formation of the main reaction product (N-A-S-H gel) and a good wear resistance. The efflorescence effect when using high alkali contents has affected the wear results. This research opens a new gate to the use of this type of materials of volcanic origin and their use as resistant materials to wear and abrasion.
Language
English
OCDE Knowledge area
Bioproductos (productos que se manufacturan usando biotecnología), biomateriales, bioplásticos, biocombustibles, materiales nuevos bioderivados, químicos finos bioredivados Vulcanología
Scopus EID
2-s2.0-85096803723
Resource of which it is part
Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
ISBN of the container
9789585207141
Conference
18th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology: "Engineering, Integration, and Alliances for a Sustainable Development" "Hemispheric Cooperation for Competitiveness and Prosperity on a Knowledge-Based Economy", LACCEI 2020
Sources of information: Directorio de Producción Científica Scopus