Enhancing Portland cement performance with nano-SiO2 for low-carbon winter construction at negative temperature
Source abstract
Abstract
Cold weather concreting suffers from retarded strength development and frost damage, which lead to increased energy consumption and carbon emissions. This study investigates the effect of nano-SiO 2 on enhancing Portland cement (PC) performance at −5 ℃, with a focus on hydration kinetics. Cement pastes with 0–2.0 wt% nano-SiO 2 were subjected to room-temperature precuring (0, 2, or 4 h) before negative temperature curing. Hydration kinetics were analyzed using isothermal calorimetry and the Krstulović-Dabić model, complemented by strength, freezable water, phase, and microstructure characterization. Nano-SiO 2 shortened the induction period, accelerated early hydration under precuring and freezing, and refined microstructure. Kinetic modelling showed increased nucleation and crystal growth (NG) and phase boundary reaction (I) stage rate constants (up to 29.1 % and 18.8 %) and reduced reaction order n. The optimal mix (1.5 wt% nano-SiO 2 , 4 h precuring) enhanced 28-day strength by 149.5 % compared to unmodified cement without precuring. Nano-SiO 2 with precuring further reduced freezable water content by 32.1 %, thereby mitigating frost damage. This study proposes a low-energy-consumption winter concreting strategy using nano-SiO 2 and short precuring.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Fire effects on concrete materials · Concrete Properties and Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. Rixom · Chem. Admix. Concr. Lond. · 1999
2. Recycling engineering sediment waste as sustainable subgrade material using ground granulated blast-furnace slag, electrolytic manganese residue and cement10.1016/j.eti.2024.103969 ↗
3. Babushkin · 1983
4. Research and Development of Concrete Science in Cold Regions
5. A conceptual model of the cement hydration process10.1016/S0008-8846(00)00231-3 ↗
6. Li · 2016
7. Efficient stabilization of dredged sediment by combining nano-modification and low-carbon supersulfated cement
8. Effect of nano-silica on mechanical, microstructural and durability properties of cement-based materials: a review
9. Influence of nano-SiO2 and nano-TiO2 on early hydration process of cement: Hydration rate, hydration products microstructure, calcium ion solubility, and diffusion ability10.1016/j.conbuildmat.2025.142629 ↗
10. Experimental study on the effect of nano-SiO2 on long-term properties of negative-temperature cement paste10.1016/j.cemconcomp.2024.105916 ↗
11. Mechanical and microstructural properties of nanoconcretes exposed to low-temperature curing10.1061/JCRGEI.CRENG-762 ↗
12. The effect of nano-SiO2 on the mechanical properties and degradation of steel fiber-reinforced geopolymer composite material under freeze-thaw cycles10.1016/j.conbuildmat.2025.141198 ↗
13. Effects of nano-silica modification on early age hydration process in winter construction of tunnel engineering10.1016/j.conbuildmat.2023.133804 ↗
14. Effect of nano SiO2 on rheology, nucleation seeding, hydration mechanism, mechanical properties and microstructure amelioration of ultra-high-performance concrete
15. A comprehensive review of cementitious composites modified with nano silica: fabrication, microstructures, properties and applications10.1016/j.conbuildmat.2023.133922 ↗
16. Effect of nano-silica on mechanical, microstructural and durability properties of cement-based materials: a review
17. Pore structure characteristics, mechanical properties, and microscopic simulation of nano-SiO2-modified coal gangue coarse aggregate concrete10.1016/j.conbuildmat.2025.143435 ↗
18. Mechanical properties and hydration mechanism of nano-silica modified alkali-activated thermally activated recycled cement
19. Effect of nano-silica on the performance of municipal solid waste incineration bottom ash cementitious composites10.1016/j.conbuildmat.2025.141229 ↗
20. Effect of nano-silica on the mechanical performance and microstructure of silicon-aluminum-based internal-cured concrete
21. Modification mechanism of nano-silica on the interfacial transition zone of concrete and its multi-scale model
22. Influence of nano-SiO2 content on cement paste and the interfacial transition zone10.3390/ma16186310 ↗
23. Improvement effects of nano-silica on bonding performance of polymer concrete for repairing damaged concrete
24. Hydration kinetics model of cement-based materials
25. Calcium sulphoaluminate cement used as mineral accelerator to improve the property of Portland cement at sub-zero temperature10.1016/j.cemconcomp.2019.103452 ↗
26. A novel approach based on differential scanning calorimetry applied to the study of tricalcium silicate hydration kinetics10.1021/jp020211l ↗
27. 2014
28. Heat evolution during the hydration of Portland cement in the presence of fly ash, calcium hydroxide and super plasticizer10.1016/j.tca.2012.08.028 ↗
29. The influence of gypsum on the hydration and properties of Portland cement pastes
30. Studies of cement-admixture interactions related to aluminate hydration control by isothermal calorimetry
31. A new approach in quantitative insitu XRD of cement pastes: correlation of heat flow curves with early hydration reactions10.1016/j.cemconres.2010.09.014 ↗
32. The early hydration of Ordinary Portland Cement (OPC): An approach comparing measured heat flow with calculated heat flow from QXRD10.1016/j.cemconres.2011.09.001 ↗
33. Effect of nano-SiO2 on the hydration and microstructure of portland cement10.3390/nano6120241 ↗
34. Cement-based materials modified by colloidal nano-silica: impermeability characteristic and microstructure10.3390/nano12183176 ↗
35. Synergistic effects of silica nanoparticles/polycarboxylate superplasticizer modified graphene oxide on mechanical behavior and hydration process of cement composites10.1039/C7RA01716B ↗
36. Nanosilica’s influence on concrete hydration, microstructure, and durability: a review
37. Effect of nano-silica on material properties, pore structure, and hydration of polyacrylate/cement composite paste10.1016/j.conbuildmat.2025.142503 ↗
38. Study on the effect of rice husk ash and nano silica on the early hydration kinetic characteristics of oil well cement10.1016/j.tca.2025.179995 ↗
39. Synergistic enhancement of high-volume fly ash cement system by triethanolamine and nano-silica: Early hydration performance and microstructure
40. Study on the influence of nano-silica substitution of reactive Si on the properties and hydration process of alkali-activated cementitious materials paste10.1016/j.conbuildmat.2024.137759 ↗
41. Early-strength mechanisms, carbon sequestration, and phytocompatibility of ecological porous concrete synergistically modified with triethanolamine and nano-silica: hydration kinetics and microstructural mechanisms
42. Low-temperature (-10℃) curing of Portland cement paste-synergetic effects of chloride-free antifreeze admixture, C-S-H seeds, and room-temperature pre-curing10.1016/j.cemconcomp.2021.104319 ↗
43. Impact of nano-silica on the hydration, strength, durability, and microstructural properties of concrete: a state-of-the-art review
44. Hydration of Portland slag cement in the presence of nano silica
45. Mechanisms underlying the freezing and melting behavior of water confined in silica nanopores as a function of pore size and pore filling10.1039/D5CP02430G ↗
46. Performance of nano-modified concrete under freezing and low temperatures10.18552/2019/IDSCMT5054 ↗
47. Effect of the early-age frost damage and nano-SiO2 modification on the properties of Portland cement paste10.1016/j.conbuildmat.2020.120098 ↗