Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Flexural behavior of flat and folded geopolymer ferrocement panels
A significant number of civil infrastructures worldwide are presently seriously affected by carbonisation, chloride attacks, etc. In addition, many civil structures are no longer proven to be safe due to elevated loading levels in design codes or because of overload or structural construction, or lack of quality control. Older structures need to be restored or reinforced to meet the same standards expected by the systems constructed today and in the future in order to facilitate serviceability. With all its excellent efficiency and flexibility, Ferrocement has earned popularity over the years. This paper presents the impact of fibre and wire mesh layers on the flexural behaviour of flat as well as folded fly ash-based geopolymer ferrocement panels. Ferrocement is a specialised typeof reinforced cement concrete without any coarse aggregates and strongly supportedgrid with several layers inserted in dense cement mortar. The behaviour, including flexural strength, ductility, stiffness, and cracking patterns, are observed. These panels may be an efficient alternative for precast concrete building materials. The concrete utilizes wastes disposed off by industrial sectors, including such fly ash as its raw product for this proposed study that corresponds to decreased CO2 emissions. Six panels have been cast utilizing fly ash dependent geopolymer mortar, composed of three flat panels but also three folded panels with dimensions 1000 mm x 350 mm x 30 mm. The panels are extracted from the castings following a resting duration of 24 hours, then allowed for curing in the heating furnace between 75oC to 80oC for 24 hours, and afterward tested. The experimental result indicates that the flexural strength has been enhanced by 33 percent by continuing to increase the quantity of wire mesh layers, but the ductility is decreased by 30 percent for the flat panels; however, there is no noticeable impact for the folded panels. The flexural strength of folded panels was found to be four times greater than that of flat panels. In addition, the behavior of fibre reinforced flat, as well as folded panels of single layer mesh, has been much stronger than double layer wire mesh panels concerning cracking and ultimate load.
Flexural behavior of flat and folded geopolymer ferrocement panels
A significant number of civil infrastructures worldwide are presently seriously affected by carbonisation, chloride attacks, etc. In addition, many civil structures are no longer proven to be safe due to elevated loading levels in design codes or because of overload or structural construction, or lack of quality control. Older structures need to be restored or reinforced to meet the same standards expected by the systems constructed today and in the future in order to facilitate serviceability. With all its excellent efficiency and flexibility, Ferrocement has earned popularity over the years. This paper presents the impact of fibre and wire mesh layers on the flexural behaviour of flat as well as folded fly ash-based geopolymer ferrocement panels. Ferrocement is a specialised typeof reinforced cement concrete without any coarse aggregates and strongly supportedgrid with several layers inserted in dense cement mortar. The behaviour, including flexural strength, ductility, stiffness, and cracking patterns, are observed. These panels may be an efficient alternative for precast concrete building materials. The concrete utilizes wastes disposed off by industrial sectors, including such fly ash as its raw product for this proposed study that corresponds to decreased CO2 emissions. Six panels have been cast utilizing fly ash dependent geopolymer mortar, composed of three flat panels but also three folded panels with dimensions 1000 mm x 350 mm x 30 mm. The panels are extracted from the castings following a resting duration of 24 hours, then allowed for curing in the heating furnace between 75oC to 80oC for 24 hours, and afterward tested. The experimental result indicates that the flexural strength has been enhanced by 33 percent by continuing to increase the quantity of wire mesh layers, but the ductility is decreased by 30 percent for the flat panels; however, there is no noticeable impact for the folded panels. The flexural strength of folded panels was found to be four times greater than that of flat panels. In addition, the behavior of fibre reinforced flat, as well as folded panels of single layer mesh, has been much stronger than double layer wire mesh panels concerning cracking and ultimate load.
Flexural behavior of flat and folded geopolymer ferrocement panels
SAKKARAI, DHARMAR (Autor:in) / S, Nagan (Autor:in)
17.11.2021
doi:10.36909/jer.12553
Journal of Engineering Research; Online First Articles ; 2307-1885 ; 2307-1877 ; 10.36909/jer.online
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
690
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