Novel Accelerating Admixture for Alkali‐Activated Cement Based on Coffee Husk Residue
Source abstract
Abstract
ABSTRACT In this study, coffee husk residue was utilized as a bio‐admixture in the synthesis of alkali‐activated cement (AAC). The AAC was formulated using metakaolin as the solid precursor, coffee husk residue as the bio‐admixture, and a sodium hydroxide (NaOH) solution as the alkaline activator. A comprehensive evaluation was conducted to investigate the physicomechanical performance, microstructural characteristics, and durability of the AAC specimens in both the fresh and hardened states. The incorporation of coffee husk residue resulted in a reduction in both flexural and compressive strength at 7 and 28 days, accompanied by an increase in water absorption. The addition of coffee husk residue reduced the final setting time by 53% and increased the heat released during the reaction by up to 30%, without changing the alkali‐activated compounds. This approach represents a first step toward creating a new pathway for recycling coffee husk residue.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Microbial Applications in Construction Materials · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Engineering Federal University of Lavras Lavras Brazil
Institute of Construction and Building Materials Technical University of Darmstadt Darmstadt Germany
Civil Engineering Department Federal University of Ouro Preto Ouro Preto Brazil
Funding
Conselho Nacional de Desenvolvimento Científico e Tecnológico · Coordenação de Aperfeiçoamento de Pessoal de Nível Superior · Fundação de Amparo à Pesquisa do Estado de Minas Gerais
References (56)
Show source-provided references
1. 10.1016/j.indcrop.2023.11790410.1016/j.indcrop.2023.117904 ↗
2. 10.1016/j.proenv.2016.02.00210.1016/j.proenv.2016.02.002 ↗
3. 10.1016/j.jclepro.2013.04.03810.1016/j.jclepro.2013.04.038 ↗
4. 10.1080/09593330.2015.104142510.1080/09593330.2015.1041425 ↗
5. 10.21170/geonorte.2017.V.8.N.30.104.11710.21170/geonorte.2017.V.8.N.30.104.117 ↗
6. Companhia Nacional de Abastecimento “Acompanhamento da safra brasileira de grãos ” (CONAB 2021).
7. 10.1016/S0960‐1481(00)00106‐310.1016/S0960‐1481(00)00106‐3 ↗
8. 10.1016/j.scp.2017.06.00410.1016/j.scp.2017.06.004 ↗
9. 10.1016/j.pce.2023.10336110.1016/j.pce.2023.103361 ↗
10. 10.1016/j.pce.2022.10325210.1016/j.pce.2022.103252 ↗
11. 10.1016/j.jclepro.2023.13666410.1016/j.jclepro.2023.136664 ↗
12. 10.1016/j.cej.2022.14036110.1016/j.cej.2022.140361 ↗
13. 10.1016/j.clay.2024.10729810.1016/j.clay.2024.107298 ↗
14. 10.1016/j.clay.2017.01.02510.1016/j.clay.2017.01.025 ↗
15. 10.1016/j.conbuildmat.2019.01.22610.1016/j.conbuildmat.2019.01.226 ↗
16. 10.1111/ijac.1443610.1111/ijac.14436 ↗
17. 10.1111/jace.1499610.1111/jace.14996 ↗
18. 10.1016/j.oceram.2024.10068710.1016/j.oceram.2024.100687 ↗
19. 10.1016/j.chemosphere.2020.12890010.1016/j.chemosphere.2020.128900 ↗
20. 10.1016/j.conbuildmat.2016.04.02110.1016/j.conbuildmat.2016.04.021 ↗
21. 10.1016/j.conbuildmat.2022.12979910.1016/j.conbuildmat.2022.129799 ↗
22. 10.1016/j.ceramint.2022.04.29510.1016/j.ceramint.2022.04.295 ↗
23. Associação Brasileira de Normas Técnicas “Fine Aggregate ‐ Determination of Density and Water Absorption ” (ABNT NBR 16916 Rio de Janeiro Brazil 2021).
24. 10.1016/j.conbuildmat.2021.12305310.1016/j.conbuildmat.2021.123053 ↗
25. American Society for Testing and Materials (ASTM) “ASTM C191‐21 ‐ Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle ” (ASTM International 2021).
26. Curing Characteristics of Wood Particles From Nine Northern Rocky Mountain Species Mixed With Portland Cement
27. 10.1016/j.jobe.2022.10554710.1016/j.jobe.2022.105547 ↗
28. Associação Brasileira de Normas Técnicas “Mortar ‐ Determination of the Compressive Strength in the Hardened Stage ‐ Method of Test ” (ABNT NBR 13279 Rio de Janeiro Brazil 2005).
29. 10.1021/cm050230i10.1021/cm050230i ↗
30. 10.1007/s10853‐012‐6353‐y10.1007/s10853‐012‐6353‐y ↗
31. 10.1016/j.indcrop.2022.11574710.1016/j.indcrop.2022.115747 ↗
32. 10.1007/s11356‐021‐17048‐710.1007/s11356‐021‐17048‐7 ↗
33. 10.1016/j.renene.2022.03.07710.1016/j.renene.2022.03.077 ↗
34. 10.1016/j.heliyon.2020.e0385310.1016/j.heliyon.2020.e03853 ↗
35. 10.1016/j.colsurfa.2005.01.01610.1016/j.colsurfa.2005.01.016 ↗
36. 10.1080/10942912.2016.125309710.1080/10942912.2016.1253097 ↗
37. 10.1016/j.conbuildmat.2018.08.02510.1016/j.conbuildmat.2018.08.025 ↗
38. 10.3390/gels803019510.3390/gels8030195 ↗
39. 10.1016/j.tca.2009.04.00210.1016/j.tca.2009.04.002 ↗
40. Strength and Setting Times of Metakaolin‐Cement‐Based Geopolymer Pastes
41. 10.1016/j.cemconres.2013.03.02210.1016/j.cemconres.2013.03.022 ↗
42. 10.1016/j.carbpol.2018.03.02210.1016/j.carbpol.2018.03.022 ↗
43. 10.1080/15440478.2020.183899510.1080/15440478.2020.1838995 ↗
44. 10.1016/j.conbuildmat.2018.04.02810.1016/j.conbuildmat.2018.04.028 ↗
45. 10.1016/j.heliyon.2023.e2004410.1016/j.heliyon.2023.e20044 ↗
46. 10.1016/j.conbuildmat.2024.13942210.1016/j.conbuildmat.2024.139422 ↗
47. 10.1111/jace.1433210.1111/jace.14332 ↗
48. 10.1111/j.1551‐2916.2007.02002.x10.1111/j.1551‐2916.2007.02002.x ↗
49. 10.1590/s1517-707620190004.083210.1590/s1517-707620190004.0832 ↗
50. Associação Brasileira de Normas Técnicas “Ceramic Components ‐ Hollow and Bricks for Masonry Part 1: Requirements ” (ABNT NBR 15270‐1 Rio de Janeiro Brazil 2023).
51. Associação Brasileira de Normas Técnicas “Mortars Applied on Walls and Ceilings ‐ Requirements ” (ABNT NBR 13281 Rio de Janeiro Brazil 2005).
52. Experimental Study of XRD, FTIR and TGA Techniques in Geopolymeric Materials
53. 10.1016/j.jascer.2014.08.00310.1016/j.jascer.2014.08.003 ↗
54. 10.1016/j.jobe.2020.10137010.1016/j.jobe.2020.101370 ↗
55. 10.1016/j.jclepro.2020.12567310.1016/j.jclepro.2020.125673 ↗
56. O.Mohamed E.Ahmed O.Najm K.Al‐Aribe andE.Hijah “Water Absorption Characteristics and Rate of Strength Development of Mortar With Slag‐Based Alkali‐Activated Binder and 25% Fly Ash Replacement ”Materials Today: Proceedings(Early View) https://doi.org/10.1016/j.matpr.2023.02.411.10.1016/j.matpr.2023.02.411 ↗