Effect of curing type on microstructure and compressive strength of geopolymer mortars
Source abstract
Abstract
In this study, the compressive strength and microstructure of pumice, perlite, burnt clay and fly ash geopolymer mortars were investigated. Activator solutions with 1.0, 1.2, 1.6 and 2.0 Ms (silica/sodium oxide) ratios as well as 4, 8 and 12% sodium oxide ratios by weight of aluminosilicate material were used. Both oven curing and microwave curing were applied. According to the results, compressive strengths of microwave-cured pumice-, perlite-and burnt clay-based geopolymer mortars were 5.7, 54.7 and 15.5% higher than those of the oven-cured counterparts. However, the strength of fly ash geopolymer reduced upon microwave curing. The energy consumption per unit compressive strength in the microwave-cured mortars was found to be between 77.1-87.0% lower than those of the oven-cured ones, depending on the aluminosilicate type. The changes caused by the curing type in the microstructure were investigated by SEM/EDS, XRD, FT-IR and thermogravimetric analysis.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (53)
Show source-provided references
1. Electrical resistivity of fly ash and metakaolin based geopolymers10.1016/j.conbuildmat.2019.117868 ↗
2. A review on emission analysis in cement industries10.1016/j.rser.2011.02.014 ↗
3. Performance of geopolymer concrete containing recycled rubber10.1016/j.conbuildmat.2019.02.121 ↗
4. Source apportionment of mercury in surface soils near the Wuda coal fire area in Inner Mongolia, China10.1016/j.chemosphere.2020.128348 ↗
5. Development of high performance sustainable optimized fiber reinforced geopolymer concrete and prediction of compressive strength10.1016/j.jclepro.2020.124543 ↗
6. A comprehensive assessment of the global warming potential of geopolymer concrete10.1016/j.jclepro.2021.126669 ↗
7. Thermoelectric behaviors of fly ash and metakaolin based geopolymer10.1016/j.conbuildmat.2019.117757 ↗
8. The role of inorganic polymer technology in the development of ‘green concrete10.1016/j.cemconres.2007.08.018 ↗
9. A comparative study on geopolymers synthesized by different classes of fly ash after exposure to elevated temperatures10.1016/j.jclepro.2020.122500 ↗
10. A scientometric review of geopolymer concrete10.1016/j.jclepro.2020.124353 ↗
11. Effect of silica modulus on the geopolymerization activity of natural pozzolans10.1016/j.conbuildmat.2019.05.161 ↗
12. Natural volcanic pozzolans as an available raw material for alkali-activated materials in the foreseeable future: a review10.1016/j.conbuildmat.2018.08.174 ↗
13. Effect of microwave-assisted curing process on strength development and curing duration of cellular lightweight geopolymer mortar
14. International Energy Agency
15. Effects of air pollution control devices on volatile organic compounds reduction in coal-fired power plants10.1016/j.scitotenv.2021.146828 ↗
16. Exergy-based investigation of a coal-fired allam cycle10.1016/j.energy.2020.119471 ↗
17. Hybrid nuclear-renewable energy systems: a review10.1016/j.jclepro.2018.01.262 ↗
18. Development of a high strength fly ash-based geopolymer in short time by using microwave curing10.1016/j.ceramint.2018.02.001 ↗
19. Response of alkali activated fly ash mortars to microwave curing10.1016/j.cemconres.2010.08.010 ↗
20. Effect of microwave curing as compared with conventional regimes on the performance of alkali activated slag pastes10.1016/j.conbuildmat.2019.117268 ↗
21. Feasibility of using microwave curing to enhance the compressive strength of mixed recycled aggregate powder based geopolymer10.1016/j.conbuildmat.2020.120897 ↗
22. Alkali-activated fly ash manufactured with multi-stage microwave curing. Fourth international conference on sustainable construction materials and technologies
23. Characteristics of alkali-activated natural Hwangtoh paste utilizing microwave heating10.5345/JKIBC.2012.12.5.503 ↗
24. Role of microwave radiation in curing the fly ash geopolymer10.1016/j.apt.2012.12.005 ↗
25. Robust synthesis of coal bottom ash-based geopolymers using additional microwave heating and curing for high compressive strength properties10.1007/s11814-019-0286-y ↗
26. TSE · 2011
27. Study on the suitability of volcanic amorphous aluminosilicate rocks (perlite) for the synthesis of geopolymer-based concrete
28. Kurt · 2016
29. Effect of Na2O content, SiO2/Na2O molar ratio, and curing conditions on the compressive strength of FA-based geopolymer10.1016/j.conbuildmat.2017.04.004 ↗
30. Understanding the relationship between geopolymer composition, microstructure and mechanical properties10.1016/j.colsurfa.2005.06.060 ↗
31. Effect of sodium silicate to sodium hydroxide ratios on strength and microstructure of fly ash geopolymer binder10.1007/s13369-014-1093-8 ↗
32. Effect of Na2SiO3/NaOH on mechanical properties and microstructure of geopolymer mortar using fly ash and rice husk ash as precursor
33. The effect of alkali activation solutions with different water glass/NaOH solution ratios on geopolymer composite materials10.1088/1757-899X/660/1/012003 ↗
34. Synthesis, Characterization and properties of fly ash based geopolymer materials
35. Mechanical behaviour and microstructural investigation of geopolymer concrete after exposure to elevated temperatures10.1007/s13369-019-04269-9 ↗
36. Effects of microwave energy on fast compressive strength development of coal bottom ash-based geopolymers10.1038/s41598-019-52160-2 ↗
37. Preparation of a geopolymer from red mud slurry and class F fly ash and its behavior at elevated temperatures10.1016/j.conbuildmat.2019.06.034 ↗
38. Thermal stability and microstructure of metakaolin-based geopolymer blended with rice husk ash10.1016/j.clay.2020.105769 ↗
39. One-part alkali activated cement based volcanic pumice10.1016/j.conbuildmat.2017.06.139 ↗
40. Cetintas · 2018
41. Effect of relative humidity on the reaction products of alkali activated fly ash10.1016/j.jeurceramsoc.2011.11.036 ↗
42. Fly-ash-based geopolymers: how the addition of recycled glass or red mud waste influences the structural and mechanical properties
43. Effect of curing temperature, activator solution composition and particle size in Brazilian fly-ash based geopolymer production
44. Properties of ground perlite geopolymer mortars10.1061/(ASCE)MT.1943-5533.0001172 ↗
45. Perlite waste as a precursor for geopolymer formation
46. Preparation, Characterization and drug release properties polyvinyl alcohol and polyvinyl pyrolidone blended hydrogels
47. Thermal treatment of kaolin: effect on the pozzolanic activity10.1016/j.mspro.2012.06.046 ↗
48. Temperature effect on mechanical and physical proprieties of Na or K alkaline silicate activated metakaolin-based geopolymers
49. Effect of synthesis parameters on the mechanical properties of fly ash-based geopolymers10.1016/j.colsurfa.2006.12.064 ↗
50. Characterization of Na-P1 zeolite synthesized from pumice as low-cost materials and its ability for methylene blue adsorption10.1088/1755-1315/399/1/012014 ↗
51. Metakaolin-based geopolymers: relation between formulation, physicochemical properties and efflorescence formation10.1016/j.compositesb.2019.107671 ↗
52. Rice-husk-based superplasticizer to increase performance of fly ash geopolymer concrete
53. Geopolymeric materials prepared using class F fly ash and elevated temperature curing10.1016/j.cemconres.2004.06.031 ↗