Curing temperature’s effect on argillite-metakaolin based geopolymer grouts
Source abstract
Abstract
This study concerns the project of high and intermediate level radioactive waste disposal (Cigéo project for Centre Industriel de stockage GEOlogique). Millions of tons of argillite will be excavated during the construction of the site. Therefore, the aim of this work is to reuse this argillite in the formulation of an injectable geopolymer grout and study its evolution in different storage conditions (T = 20 and 80 °C). To achieve this challenge, a metakaolin and calcined Callovo-Oxfordian (COx) argillite were used with potassium silicate solutions. The grouts were successfully obtained from both metakaolin and COx argillite in both temperatures 20 and 80 °C. The range of viscosity of several mixtures respected the required specifications (viscosity ≤5 Pa s and setting time superior to 6 h). The metakaolin-based geopolymers didn’t display any major changes no matter the storage temperature, except for the pore size, a coalescence phenomenon was observed with the increase of temperature. In contrast, for argillite or argillite-metakaolin based samples, a decrease of pore size as well as in pH values were observed with the increase of temperature. This behaviour was attributed to the dissolution of argillite’s impurities such as illite, providing more oligomers to allow the formation of different geopolymer networks.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Grouting, Rheology, and Soil Mechanics · Drilling and Well Engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. Texture and porosity of Callovo-Oxfordian argillites of the Meuse/Haute-Marne region (eastern Paris Basin) Mém
2. Structural modifications of Callovo-Oxfordian argillite under hydration/dehydration conditions10.1016/j.clay.2003.10.004 ↗
3. 29Si, 27Al, 31P and 11B magic angle spinning nuclear magnetic resonance study of the structural evolutions induced by the use of phosphor- and boron–based additives in geopolymer mixtures10.1016/j.jnoncrysol.2019.119541 ↗
4. Alkali-activated materials based on Callovo-Oxfordian Argillite: formation, structure, and mechanical properties
5. Geopolymer local network evolution under time and temperature10.1016/j.jnoncrysol.2021.120870 ↗
6. The effect of curing conditions on compression strength and porosity of metakaolin-based geopolymers
7. Effect of curing temperature on geopolymerization of metakaolin-based geopolymers10.1016/j.clay.2014.06.024 ↗
8. Effects of an illite clay substitution on geopolymer synthesis as an alternative to metakaolin10.1061/(ASCE)MT.1943-5533.0003690 ↗
9. Effect of temperature on geopolymer and Portland cement composites modified with Micro-encapsulated Phase Change materials10.1016/j.conbuildmat.2020.119055 ↗
10. Methods of curing geopolymer concrete: a review10.21833/ijaas.2018.01.005 ↗
11. The effect of furnace and flash heating on COx argillite for the synthesis of alkali-activated binders10.1016/j.jclepro.2017.04.056 ↗
12. Alkali-activated materials based on Callovo-Oxfordian Argillite: formation, structure, and mechanical properties
13. Influence of the nature and amount of carbonate additions on the thermal behaviour of geopolymers: a model for prediction of shrinkage10.1016/j.conbuildmat.2021.123752 ↗
14. Dupuy · 2019
15. NF ISO 10390, Qualité du sol – détermination du pH..
16. Effects of potassium-silicate, sands and carbonates concentrations on metakaolin-based geopolymers for high-temperature applications
17. Controlling the reactivity of silicate solutions: a FTIR, Raman and NMR study10.1016/j.colsurfa.2016.05.039 ↗
18. Speciation studies in aqueous HCO3−–CO32− solutions. A combined Raman spectroscopic and thermodynamic study10.1039/B713254A ↗
19. Synthesis of consolidated materials from alkaline solutions and metakaolin: existence of domains in the Al-Si-K/O ternary diagram10.1007/s10971-012-2927-z ↗
20. Influence of calcium addition on calcined brick clay based geopolymers: a thermal and FTIR spectroscopy study10.1016/j.conbuildmat.2017.07.047 ↗
21. Effect of the reactivity of alkaline solution and metakaolin on geopolymer formation10.1016/j.jnoncrysol.2014.12.021 ↗
22. Disposition of water in metakaolinite-based geopolymers
23. Predictive tools to control the structure and the properties of metakaolin based geopolymer materials10.1016/j.colsurfa.2016.09.089 ↗
24. XRD and TG-DTA study of new phosphate-based geopolymers with coal ash or metakaolin as aluminosilicate source and mine tailings addition10.3390/ma15010202 ↗
25. Effects of alkaline activators on pore structure and mechanical properties of ultrafine metakaolin geopolymers cured at room temperature
26. Study of the effect of siliceous species in the formation of a geopolymer binder: understanding the reaction mechanisms among the binder, wood, and earth brick10.1021/ie403670c ↗
27. Mechanical and durability analysis of fly ash based geopolymer with various compositions for rigid pavement applications10.3390/ma15103458 ↗
28. Effect of elevated temperature on the properties of geopolymer synthesized from calcined ore-dressing tailing of bauxite and ground-granulated blast furnace slag10.1016/j.conbuildmat.2014.07.002 ↗
29. Influencing of curing schedule on the integrity of geopolymers
30. Silica fume as porogent agent in geo-materials at low temperature10.1016/j.jeurceramsoc.2010.01.014 ↗
31. Synthesis of consolidated materials from alkaline solutions and metakaolin: existence of domains in the Al–Si–K/O ternary diagram10.1007/s10971-012-2927-z ↗
32. Addition of low reactive clay into metakaolin-based geopolymer formulation: synthesis, existence domains and properties10.1016/j.powtec.2015.11.012 ↗
33. Ambient temperature drying shrinkage and cracking in metakaolin-based geopolymers10.1111/j.1551-2916.2012.05380.x ↗
34. The influence of alkali activator type, curing temperature and gibbsite on the geopolymerization of an interstratified illite-smectite rich clay from friedland10.1016/j.clay.2016.10.021 ↗
35. The influence of sintering temperature on the pore structure of an alkali-activated Kaolin-based geopolymer ceramic10.3390/ma15072667 ↗
36. « Infrared and Raman Characteristic Group Frequencies: Tableles and Charts», 3rd Edition; Spectrosc. Anal. Chem. Subj.; Wiley, G Socrates.
37. Role of alkaline cations and water content on geomaterial foams: monitoring during formation10.1016/j.jnoncrysol.2010.12.030 ↗
38. Raman and infrared spectra of carbonates of calcite structure10.1002/jrs.1518 ↗
39. Effects in the solubility of CaCO3: experimental study and model description10.1016/j.fluid.2012.03.020 ↗
40. An experimental study of illite dissolution kinetics as a function of ph from 1.4 to 12.4 and temperature from 5 to 50°C10.1016/S0016-7037(03)00163-7 ↗
41. Chlorite, biotite, illite, muscovite and feldspar dissolution kinetics at variable pH and temperatures up to 280 deg C