Study on the Durability of Graphene Oxide–Nanosilica Hybrid-Modified Sticky Rice–Lime Paste
Ke Li, Donghui Cheng, Yingqi Fu, Xuwen Yan, Li Wang, Haisheng Ren
TL;DR
This study explores how adding graphene oxide and nanosilica improves the durability of a traditional lime-based restoration material used in ancient masonry.
Contribution
The novel use of graphene oxide–nanosilica hybrids to enhance the structural and durability properties of sticky rice–lime paste is introduced.
Findings
GO–NS reduces fluidity and shrinkage while improving compressive strength, water resistance, and freeze resistance of the paste.
Nanosilica enhances the interlayer structure of graphene oxide and generates calcium silicate hydrate, refining the paste's internal pore structure.
Abstract
In order to improve the durability performance of sticky rice–lime paste in ancient masonry restoration materials, the effect of graphene oxide–nanosilica hybrids (GO–NS) on its basic physical properties and durability performance was investigated. The surface morphology, physical phase characteristics and infrared spectra of GO–NS and its sticky rice–lime paste were analysed by SEM, FE-TEM, XRD and FTIR. It was shown that NS successfully attached to the GO surface and improved the interlayer structure of GO. GO–NS reduces the fluidity and shrinkage of sticky rice–lime paste, prolongs the initial setting, shortens the final setting and significantly improves the compressive strength, water resistance and freeze resistance. As NS improves the interlayer structure of GO, it provides nucleation sites for the hardening of the sticky rice–lime paste, improves the quantity and structural…
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Taxonomy
TopicsBuilding materials and conservation · Bone Tissue Engineering Materials · Concrete and Cement Materials Research