A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Thermal performance, freeze-and-thaw resistance, and bond strength of cement mortar using rice husk-derived graphene
HighlightsThermal performance of GRH was fair among other carbon-based materials.GRH mortar showed a better performance against freezing-and-thawing attack.Bond strength of thin GRH overlay exhibited better on 0.75wt% specimen.
AbstractWe explored the thermal performance, bond strength, and freeze-and-thaw resistance of mortar composite incorporating rice husk-derived graphene-like material (GRH). These three features are key for road pavement application, especially against ice and snow on its surface. Groups of GRH mortar prisms (20×20×50mm, 50×50×100mm) were tested to examine heating and cooling performance, in comparison with other carbon-based materials: multi-walled CNT, graphene platelets, and carbon fibers. Additionally, thermal performance was assessed in terms of GRH wt% insertion. GRH cubes of 50mm with different wt% were tested to capture freeze-and-thaw resistance for 300 cycles. XRD, Rietveld, and SEM-EDS analyses of calcium silicate hydrate (CSH) gels of undamaged/damaged cubes with/without GRH were compared at the age of 120days after casting. A group of Φ100×200mm slanted concrete cylinders was tested with a 10-mm-thick overlay with different wt% GRH. The compressive failure load and fractured area were used to evaluate the bond strength of the GRH thin overlay.
Thermal performance, freeze-and-thaw resistance, and bond strength of cement mortar using rice husk-derived graphene
HighlightsThermal performance of GRH was fair among other carbon-based materials.GRH mortar showed a better performance against freezing-and-thawing attack.Bond strength of thin GRH overlay exhibited better on 0.75wt% specimen.
AbstractWe explored the thermal performance, bond strength, and freeze-and-thaw resistance of mortar composite incorporating rice husk-derived graphene-like material (GRH). These three features are key for road pavement application, especially against ice and snow on its surface. Groups of GRH mortar prisms (20×20×50mm, 50×50×100mm) were tested to examine heating and cooling performance, in comparison with other carbon-based materials: multi-walled CNT, graphene platelets, and carbon fibers. Additionally, thermal performance was assessed in terms of GRH wt% insertion. GRH cubes of 50mm with different wt% were tested to capture freeze-and-thaw resistance for 300 cycles. XRD, Rietveld, and SEM-EDS analyses of calcium silicate hydrate (CSH) gels of undamaged/damaged cubes with/without GRH were compared at the age of 120days after casting. A group of Φ100×200mm slanted concrete cylinders was tested with a 10-mm-thick overlay with different wt% GRH. The compressive failure load and fractured area were used to evaluate the bond strength of the GRH thin overlay.
Thermal performance, freeze-and-thaw resistance, and bond strength of cement mortar using rice husk-derived graphene
Rhee, Inkyu (author) / Lee, Jun-Seok (author) / Kim, Jin Hee (author) / Kim, Yoong Ahm (author)
Construction and Building Materials ; 146 ; 350-359
2017-04-13
10 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2017
| British Library Online Contents | 2017
Freeze-thaw resistance of concrete using acid-leached rice husk ash
| Online Contents | 2014
Freeze-thaw resistance of concrete using acid-leached rice husk ash
| Springer Verlag | 2014