| Residential College | false |
| Status | 已發表Published |
| Optimal freeze-thaw resistance air-entrained concrete with designed nanoparticle stabilised bubble system | |
LI, Xue ; Sun, Guoxing 
| |
| 2024-07 | |
| Source Publication | Construction and Building Materials
 |
| Volume | 435Pages:136769 |
| Abstract | Freeze-Thaw (F-T) damage in cementitious materials is a significant concern in the construction and civil engineering industry, which refers to the deterioration of concrete and other cement-based materials when subjected to cycles of freezing and thawing. Incorporating air-entraining agents (AEAs) in concrete is widespread for introducing tiny air bubbles to improve F-T resistance while ensuring the stability and uniform distribution of the air void system, which poses a considerable challenge. To stabilise durable pore networks established by air-entraining agents (AEAs), nanoparticles (NPs) with antithetical ionic functional groups are co-used in the concrete for bearing F-T sufferings. Mechanical properties, F-T resistance, and micro-properties of end products are tested via universal machine, XRD, SEM, and nano-CT. Results verify a positive synergistic effect between AEAs and NPs, embodied by high efficacy and compatibility in generating a stable air system, a 33.3 % higher compressive strength, and a 28.3 % higher flexural strength relative to the control. Moreover, the F-T test results indicate a remarkable enhancement in resistance, with specimens resiliently enduring beyond 300 F-T cycles despite experiencing a modest 2.05 % mass loss and an impressive 4.6 % compressive strength loss. |
| Keyword | Freeze-thaw Resistance Nanoparticles Air-entrained Concrete |
| Indexed By | SCIE |
| Language | 英語English |
| Document Type | Journal article |
| Collection | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
| Corresponding Author | Sun, Guoxing |
| Affiliation | Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universida de Taipa, Macao, Special Administrative Region of China |
| First Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
| Corresponding Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
| Recommended Citation GB/T 7714 | LI, Xue,Sun, Guoxing. Optimal freeze-thaw resistance air-entrained concrete with designed nanoparticle stabilised bubble system[J]. Construction and Building Materials, 2024, 435, 136769. |
| APA | LI, Xue., & Sun, Guoxing (2024). Optimal freeze-thaw resistance air-entrained concrete with designed nanoparticle stabilised bubble system. Construction and Building Materials, 435, 136769. |
| MLA | LI, Xue,et al."Optimal freeze-thaw resistance air-entrained concrete with designed nanoparticle stabilised bubble system".Construction and Building Materials 435(2024):136769. |
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