Calcination and reconstruction performances of layered double hydroxides and its inhibition effect to chloride attack in interfacial transition zone of recycled aggregate concrete
Source abstract
Abstract
Addition of active micro-nanomaterials in recycled aggregate concrete (RAC) is a potential strategy to improve the mechanical properties and durability of RAC. The calcined layered double hydroxides (CLDHs) with special composition, structure and memory effects, exhibit great adsorption and binding capacity to anions. Therefore, the CLDHs were prepared and utilized for inhibiting chloride attack in interfacial transition zone (ITZ) of RAC. The structural transformation characteristics of CLDHs experienced various calcination temperatures were firstly investigated, and the reconstruction performances and Cl - adsorption capacity of CLDHs in solution with different anions, pH and temperature were then explored in detail. The microstructure and chloride erosion resistance property of ITZ in RAC incorporated with CLDHs were further investigated. The results demonstrated that CLDHs exhibited excellent reconstruction performance and Cl - adsorption capacity when LDHs were calcined above 500℃, and the maximum chloride adsorption capacity of the CLDHs was 86.82 mg/g. It was noteworthy that the reconstruction and Cl - adsorption performance of CLDHs will be distinctly suppressed when the pH > 10, in contrast, increasing the ambient temperature promoted the reconstruction and Cl - adsorption performance of CLDHs. Additionally, the width of ITZ in the RAC were significantly reduced and the porosity had decreased by 32.5% with incorporation of 3% CLDHs in RAC. The good filling effect and superior chloride adsorption capacity resulted in the significantly decreased free chloride content in RAC.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Magnesium Oxide Properties and Applications · Concrete and Cement Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (59)
Show source-provided references
1. Silva, recycled aggregates from construction and demolition waste towards an application on structural concrete: a review
2. A comprehensive review on recycled aggregate and recycled aggregate concrete10.1016/j.resconrec.2021.105565 ↗
3. A review on treatment techniques to improve the durability of recycled aggregate concrete: enhancement mechanisms, performance and cost analysis
4. Study on the effect of reinforced recycled aggregates on the performance of recycled concrete–synergistic effect of cement slurry-carbonation
5. Properties and microstructure of packing-optimised recycled aggregate concrete with different cement paste or sand contents10.1016/j.conbuildmat.2022.128178 ↗
6. Salt-frost damage characterization of simulant multiple ITZs in nano-silica modified recycled aggregate concrete
7. Evaluation of techniques for enhancing recycled concrete aggregates: chemical treatment, biological modification and synergistic reinforcement10.1016/j.conbuildmat.2024.135641 ↗
8. Straightening methods for RCA and RAC—a review10.1016/j.cemconcomp.2023.105145 ↗
9. Accelerated carbonation of recycled concrete aggregate in semi-wet environments: a promising technique for CO2 utilization10.1016/j.cemconres.2024.107486 ↗
10. Colloidal nanosilica promotes high-density calcium-silicate-hydrates in fine recycled concrete aggregate mortar10.1016/j.cemconres.2024.107498 ↗
11. Efficacy of various accelerated carbonation techniques to improve recycled concrete aggregates: a comprehensive review
12. Salt-frost scaling resistance characteristics of nano silica-modified recycled aggregate concrete
13. Surface modification of recycled coarse aggregate based on microbial induced carbonate precipitation10.1016/j.jclepro.2021.129537 ↗
14. Colloidal nanosilica promotes high-density calcium-silicate-hydrates in fine recycled concrete aggregate mortar10.1016/j.cemconres.2024.107498 ↗
15. Modification of recycled aggregate and conservation and application of recycled aggregate concrete: a review10.1016/j.conbuildmat.2024.136567 ↗
16. Development of nano-silica treatment methods to enhance recycled aggregate concrete10.1016/j.cemconcomp.2021.103963 ↗
17. Influence of supplementary cementitious materials on ITZ characteristics of recycled concrete10.1016/j.conbuildmat.2022.129736 ↗
18. Stress–strain model for lightweight aggregate concrete reinforced with carbon–polypropylene hybrid fibers
19. Layered double hydroxides: an insight into the role of hydrotalcite-type anionic clays in energy and environmental applications with current progress and recent prospects
20. Layered double hydroxides (LDHs) modified cement-based materials: a systematic review10.1515/ntrev-2022-0478 ↗
21. Insight into ion exchange behavior of LDHs: asynchronous chloride adsorption and intercalated ions release processes10.1016/j.cemconcomp.2024.105433 ↗
22. Effects of interlayer-modified layered double hydroxides with organic corrosion inhibiting ions on the properties of cement-based materials and reinforcement corrosion in chloride environment10.1016/j.cemconcomp.2024.105793 ↗
23. Hydration and microstructure of calcined hydrotalcite activated high-volume Fly ash cementitious composite10.1016/j.cemconcomp.2021.104213 ↗
24. Co-adsorption mechanisms of As(V) and Cd(II) by three-dimensional flower-like Mg/Al/Fe-CLDH synthesized by “memory effect”10.1007/s11356-023-29673-5 ↗
25. Chloride binding in cement paste with calcined Mg-Al-CO3 LDH (CLDH) under different conditions10.1016/j.conbuildmat.2020.121678 ↗
26. Anti-corrosion mechanism of MgAl-LDHs inhibitors with varying anionic charge on reinforcing steel in simulated concrete pore solutions10.1016/j.conbuildmat.2022.129882 ↗
27. Influence of LDHs-VB3 on steel bar corrosion in chloride environments: experimental analysis and theoretical calculation10.1016/j.conbuildmat.2025.142266 ↗
28. A novel LDHs-VB3- inhibitor for rebar corrosion in simulated concrete pore solution: synthesis, performance and mechanism10.1016/j.compositesb.2024.111414 ↗
29. Performance analysis of calcined Mg-Al layered double hydroxides (CLDH) and its effect on the durability of concrete under the combined action of temperature and sulfate attack10.1016/j.conbuildmat.2025.141656 ↗
30. Kinetic, isotherm, and mechanism investigations of the removal of nitrate and nitrite from water by the synthesized hydrotalcite Mg–Al10.1007/s11164-021-04414-w ↗
31. Variations in chloride ion sorption within layered double hydroxides engineered with different cation types10.1016/j.apsusc.2024.159610 ↗
32. ITZs characterization in full-component geopolymer recycled concrete based on quantitative BSE-EDS images and nanoindentation techniques10.1016/j.conbuildmat.2025.140249 ↗
33. An effective transport model of sulfate attack in concrete10.1016/j.conbuildmat.2019.04.218 ↗
34. Thermal decomposition kinetics of MgAl layered double hydroxides10.1016/j.matchemphys.2012.01.026 ↗
35. Improving sulfate attack resistance of concrete by using calcined Mg-Al-CO3 LDHs: adsorption behavior and mechanism10.1016/j.conbuildmat.2019.117256 ↗
36. Development of high-dispersion CLDH/carbon dot composites to boost chloride binding of cement10.1016/j.cemconcomp.2024.105669 ↗
37. Effect of cation types on the steel corrosion inhibition behavior of calcined layered double hydroxides in saturated calcium hydroxide solution10.1061/JMCEE7.MTENG-16602 ↗
38. Study on leaching of phosphate from municipal wastewater treatment Plant’s sewage sludge and followed by adsorption on Mg-Al layered double hydroxide10.1155/2022/1777187 ↗
39. The influence of ferric iron in calcined nano-Mg/Al hydrotalcite on adsorption of cr (VI) from aqueous solution10.1016/j.jhazmat.2010.11.052 ↗
40. Removal of HCl from gases using modified calcined Mg-Al-CO3 hydrotalcite: performance, mechanism, and adsorption kinetics10.1016/j.fuel.2023.129445 ↗
41. Removal of indigo carmine dye from water to Mg-Al-CO3-calcined layered double hydroxides10.1016/j.jhazmat.2008.04.089 ↗
42. On the thermal stability and structures of layered double hydroxides Mg1-xAlx(OH)2(NO3)x·mH2O (0.18 ≤ x ≤ 0.38)10.1002/ejic.201403232 ↗
43. Application of layered double hydroxides (LDHs) in corrosion resistance of reinforced concrete-state of the art10.1016/j.conbuildmat.2021.124991 ↗
44. In-situ embedding carbon dots in trisodium citrate crystal matrix for tunable solid-state fluorescence10.1016/j.carbon.2018.05.015 ↗
45. Synthesis and characterization of crude hydrotalcite Mg–Al–CO3: study of thymol adsorption10.1007/s11164-018-3361-9 ↗
46. Influence of layered double hydroxides on microstructure and carbonation resistance of sulphoaluminate cement concrete10.1016/j.conbuildmat.2013.07.049 ↗
47. A Green heterogeneous synthesis of N-doped carbon dots and their photoluminescence applications in solid and aqueous states10.1039/C4NR02792B ↗
48. Ultrasound-assisted adsorption of perchlorate using calcined hydrotalcites and the thermal stabilization effect of recycled adsorbents on Poly(vinyl chloride)10.1021/acsomega.3c00176 ↗
49. Effect of SiO2-modified calcined layered double hydroxides on the properties of cement-based material: crucial role of the phase-transformation induced by alkaline pore solution10.1016/j.cemconres.2024.107465 ↗
50. Effect of time, ph, and temperature on kinetics for adsorption of methyl orange dye into the modified nitrate intercalated MgAl LDH adsorbent10.1016/j.inoche.2022.109203 ↗
51. Insights into chloride sorption and phase transformation of the synthesized Ca-Al bimetallic oxides in flue gas desulfurization wastewater10.1016/j.cej.2023.146214 ↗
52. Study on the adsorption mechanism of chloride ion in aqueous solution on Mg/Al-CLDH modified by high temperature calcination10.1016/j.inoche.2023.110403 ↗
53. Preparation and application of calcined Mg/Al layered double hydroxides in organic coatings and chloride removal10.20964/2022.08.25 ↗
54. Removal of perchlorate from aqueous solution using quaternary ammonium modified magnetic Mg/Al-layered double hydroxide, colloids surfaces a physicochem10.1016/j.colsurfa.2022.129111 ↗
55. The adsorption and diffusion behavior of chloride in recycled aggregate concrete incorporated with calcined LDHs10.1016/j.cemconcomp.2024.105452 ↗
56. The interfacial transition zone (ITZ) between cement paste and aggregate in concrete10.1023/B:INTS.0000042339.92990.4c ↗
57. Durability of recycled aggregate concrete – a review10.1016/j.cemconcomp.2018.03.008 ↗
58. Strength, porosity and permeability properties of porous concrete made from recycled concrete aggregates
59. Effects of binders characteristics and concrete dosing parameters on the chloride diffusion coefficient10.1016/j.cemconcomp.2021.104114 ↗