TY - GEN
T1 - Peruvian volcanic ashes as new alternative material in geopolymer preparation
T2 - 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
AU - Tupayachy-Quispe, Danny
AU - Almirón, Jonathan
AU - Apaza, Fredy
AU - Churata, Rossibel
AU - Paredes, Evelyn
AU - Torres-Carrasco, Manuel
AU - Bautista, Asunción
N1 - Publisher Copyright:
© 2020 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
KW - Alkaline solution
KW - Compressive strength
KW - Geopolymer
KW - Volcanic ash
KW - Wear durability
UR - http://www.scopus.com/inward/record.url?scp=85096803723&partnerID=8YFLogxK
U2 - 10.18687/LACCEI2020.1.1.5
DO - 10.18687/LACCEI2020.1.1.5
M3 - Conference contribution
AN - SCOPUS:85096803723
T3 - Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
BT - 18th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology
PB - Latin American and Caribbean Consortium of Engineering Institutions
Y2 - 27 July 2020 through 31 July 2020
ER -