Effect of Waiting Time before Re-vibration on Mechanical Properties of Fiber Reinforced Concrete
A knowledge of the concrete vibration after casting have led to improve the mechanical properties of concrete, reduce the deformations due to creep and shrinkage and reduce the concrete permeability. At the Structural and Material Laboratories- Building and Construction Engineering Department, Unive...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2018-07-01
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| Series: | Engineering and Technology Journal |
| Subjects: | |
| Online Access: | https://etj.uotechnology.edu.iq/article_175178_0e8b0f0dca209d9eab9ab2b1682b262a.pdf |
| _version_ | 1797326039896031232 |
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| author | Aseel Abdulridha |
| author_facet | Aseel Abdulridha |
| author_sort | Aseel Abdulridha |
| collection | DOAJ |
| description | A knowledge of the concrete vibration after casting have led to improve the mechanical properties of concrete, reduce the deformations due to creep and shrinkage and reduce the concrete permeability. At the Structural and Material Laboratories- Building and Construction Engineering Department, University of Technology, series experimental tests on prisms, cubes and cylinders were carried out to investigate the effect of waiting time after initial vibration on the flexural-tensile strength, compressive strength and splitting tensile strength of fiber reinforced concrete. The variables considered in this study were; the amount of steel fiber and waiting time after initial vibration. The test results showed that the concrete prisms without steel fiber show approximately linear behavior till the maximum flexural-tensile load due to brittle behavior of concrete. The maximum improvement in flexural-tensile strength of concrete prism occurs after the initial setting of concrete i.e after 90 minutes of waiting time. The re-vibration after time period increase the stiffness of concrete prism in case of presence of steel fiber compared with the prisms initially vibrated only. The modulus of rupture of concrete prism increased with the increasing of steel fiber content for all waiting time before re-vibration. |
| first_indexed | 2024-03-08T06:17:52Z |
| format | Article |
| id | doaj.art-cd9adb0bdbd94e39a8063985ea3b7f32 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T06:17:52Z |
| publishDate | 2018-07-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-cd9adb0bdbd94e39a8063985ea3b7f322024-02-04T17:16:16ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582018-07-01367A74875810.30684/etj.36.7A.7175178Effect of Waiting Time before Re-vibration on Mechanical Properties of Fiber Reinforced ConcreteAseel Abdulridha0Building and Construction Engineering Department, University of Technology, Baghdad, Iraq.A knowledge of the concrete vibration after casting have led to improve the mechanical properties of concrete, reduce the deformations due to creep and shrinkage and reduce the concrete permeability. At the Structural and Material Laboratories- Building and Construction Engineering Department, University of Technology, series experimental tests on prisms, cubes and cylinders were carried out to investigate the effect of waiting time after initial vibration on the flexural-tensile strength, compressive strength and splitting tensile strength of fiber reinforced concrete. The variables considered in this study were; the amount of steel fiber and waiting time after initial vibration. The test results showed that the concrete prisms without steel fiber show approximately linear behavior till the maximum flexural-tensile load due to brittle behavior of concrete. The maximum improvement in flexural-tensile strength of concrete prism occurs after the initial setting of concrete i.e after 90 minutes of waiting time. The re-vibration after time period increase the stiffness of concrete prism in case of presence of steel fiber compared with the prisms initially vibrated only. The modulus of rupture of concrete prism increased with the increasing of steel fiber content for all waiting time before re-vibration.https://etj.uotechnology.edu.iq/article_175178_0e8b0f0dca209d9eab9ab2b1682b262a.pdfre-vibrationconcrete prismsteel fibertensile strength |
| spellingShingle | Aseel Abdulridha Effect of Waiting Time before Re-vibration on Mechanical Properties of Fiber Reinforced Concrete Engineering and Technology Journal re-vibration concrete prism steel fiber tensile strength |
| title | Effect of Waiting Time before Re-vibration on Mechanical Properties of Fiber Reinforced Concrete |
| title_full | Effect of Waiting Time before Re-vibration on Mechanical Properties of Fiber Reinforced Concrete |
| title_fullStr | Effect of Waiting Time before Re-vibration on Mechanical Properties of Fiber Reinforced Concrete |
| title_full_unstemmed | Effect of Waiting Time before Re-vibration on Mechanical Properties of Fiber Reinforced Concrete |
| title_short | Effect of Waiting Time before Re-vibration on Mechanical Properties of Fiber Reinforced Concrete |
| title_sort | effect of waiting time before re vibration on mechanical properties of fiber reinforced concrete |
| topic | re-vibration concrete prism steel fiber tensile strength |
| url | https://etj.uotechnology.edu.iq/article_175178_0e8b0f0dca209d9eab9ab2b1682b262a.pdf |
| work_keys_str_mv | AT aseelabdulridha effectofwaitingtimebeforerevibrationonmechanicalpropertiesoffiberreinforcedconcrete |