Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding
This paper aims to study the production and the physical and chemical characterization of rice husk, sugarcane bagasse, corn straw, and bamboo leaf ashes to use as pozzolans. The ash production steps basically consisted of raw material collection, chemical treatment by citric acid leaching, conjugat...
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ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
2020
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ojs-article-1001632020-10-07T21:42:47Z Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding Cordeiro, Guilherme Chagas Lemos, Mônica Nunes Xavier, Kristian Vinco Lima, Charles Prado Ferreira de pozzolan; agroindustrial ash; ultrafine grinding; conjugated burning; acid leaching This paper aims to study the production and the physical and chemical characterization of rice husk, sugarcane bagasse, corn straw, and bamboo leaf ashes to use as pozzolans. The ash production steps basically consisted of raw material collection, chemical treatment by citric acid leaching, conjugated burning (thermal processing) and ultrafine grinding (mechanical processing) of the produced ashes. The results indicated that all ashes could be classified as pozzolanic additions based on specific standards. The high pozzolanicity of the ashes was confirmed by testing the electrical conductivity, mechanical performance index, and hydration kinetics of cement pastes by isothermal calorimetry. Therefore, the production processes used in this work were effective in producing highly reactive pozzolanic materials. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído Capes, CNPq, Faperj 2020-10-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/100163 Ambiente Construído; v. 20, n. 4 (2020); 189-2-3 Ambiente Construído; v. 20, n. 4 (2020); 189-2-3 Ambiente Construído; v. 20, n. 4 (2020); 189-2-3 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/100163/58731 Direitos autorais 2020 Ambiente Construído https://creativecommons.org/licenses/by/4.0 |
| institution |
Universidade Federal do Rio Grande do Sul |
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OJS |
| language |
por |
| format |
Online |
| author |
Cordeiro, Guilherme Chagas Lemos, Mônica Nunes Xavier, Kristian Vinco Lima, Charles Prado Ferreira de |
| spellingShingle |
Cordeiro, Guilherme Chagas Lemos, Mônica Nunes Xavier, Kristian Vinco Lima, Charles Prado Ferreira de Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding |
| author_facet |
Cordeiro, Guilherme Chagas Lemos, Mônica Nunes Xavier, Kristian Vinco Lima, Charles Prado Ferreira de |
| author_sort |
Cordeiro, Guilherme Chagas |
| title |
Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding |
| title_short |
Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding |
| title_full |
Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding |
| title_fullStr |
Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding |
| title_full_unstemmed |
Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding |
| title_sort |
production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding |
| description |
This paper aims to study the production and the physical and chemical characterization of rice husk, sugarcane bagasse, corn straw, and bamboo leaf ashes to use as pozzolans. The ash production steps basically consisted of raw material collection, chemical treatment by citric acid leaching, conjugated burning (thermal processing) and ultrafine grinding (mechanical processing) of the produced ashes. The results indicated that all ashes could be classified as pozzolanic additions based on specific standards. The high pozzolanicity of the ashes was confirmed by testing the electrical conductivity, mechanical performance index, and hydration kinetics of cement pastes by isothermal calorimetry. Therefore, the production processes used in this work were effective in producing highly reactive pozzolanic materials. |
| publisher |
ANTAC - Associação Nacional de Tecnologia do Ambiente Construído |
| publishDate |
2020 |
| url |
https://seer.ufrgs.br/ambienteconstruido/article/view/100163 |
| work_keys_str_mv |
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1709370585377669120 |