Journal
JOURNAL OF BUILDING ENGINEERING
Volume 67, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jobe.2023.105950
Keywords
Superhydrophobic concrete; Hierarchical micro -nano composite structure; Self-cleaning property; Stable mechanical property
Ask authors/readers for more resources
A fabrication method for self-cleaning concrete with green environmental protection and stable mechanical properties was proposed in this paper. The hierarchical micro-nano composite structure was obtained by directly copying the structure from modified copper mesh to the surface of the concrete and using octadecylamine-grafted humic acid to obtain low surface energy. The fabricated concrete showed high water contact angle, low water sliding angle, good mechanical stability, and self-cleaning performance.
Superhydrophobic concrete has the ability to remove surface stains and resist water erosion. In this paper, a fabrication medium of self-cleaning concrete with green environmental protection and stable mechanical properties is proposed. Hierarchical micro-nano composite structure was obtained by directly copying the micro-nano composite structure from the modified copper mesh to the surface of the newly poured concrete and then using octadecylamine-grafted humic acid to obtain low surface energy. Moreover, the microstructure and chemical composition of the fabricated concrete were characterized. The superhydrophobicity, wetting durability, and selfcleaning performance of the fabricated concrete were studied. Results indicated that the water contact angle of the prepared S-concrete reaches 158 degrees and the water sliding angle were as low as 5 degrees. In addition, due to the successful replication of the micro-nano composite structure, the precast concrete has good mechanical stability and self-cleaning performance compared with ordinary concrete.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available