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Some features of extruded cement composite panel reinforced with carbon fiber rebars
It is innovative that cementitious composite and rebars have now become to be simultaneously extrusion moulded with a special die attached to an extruder. Utilizing such extruder, whose diameter of auger screw is 150 mm, the cement composite and carbon fiber rebars were extruded simultaneously into panels. Mechanical properties, porosity, freeze and thaw characteristics of material were investigated, followed by flexural tests of panels. It is concluded, that extrusion moulded panels with rebars have some advantages: 1) the extruded composite has high freeze and thaw resistance because of depressurizing and compaction process in addition to used fine materials, which result in fewer and smaller pore volume and size. 2) The flexural behaviour of the panel is structurally reliable, because it indicates both yield and strain-hardening stages before fracture. Moreover, deflection when fracture is very big; deflection to bending span ratio is equal to 1/22 for Type-t specimen.
Some features of extruded cement composite panel reinforced with carbon fiber rebars
It is innovative that cementitious composite and rebars have now become to be simultaneously extrusion moulded with a special die attached to an extruder. Utilizing such extruder, whose diameter of auger screw is 150 mm, the cement composite and carbon fiber rebars were extruded simultaneously into panels. Mechanical properties, porosity, freeze and thaw characteristics of material were investigated, followed by flexural tests of panels. It is concluded, that extrusion moulded panels with rebars have some advantages: 1) the extruded composite has high freeze and thaw resistance because of depressurizing and compaction process in addition to used fine materials, which result in fewer and smaller pore volume and size. 2) The flexural behaviour of the panel is structurally reliable, because it indicates both yield and strain-hardening stages before fracture. Moreover, deflection when fracture is very big; deflection to bending span ratio is equal to 1/22 for Type-t specimen.
Some features of extruded cement composite panel reinforced with carbon fiber rebars
Yamada, K. (author) / Nakagawa, H. (author)
2000
6 Seiten, 7 Bilder, 3 Tabellen, 4 Quellen
Conference paper
English
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