Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments
A Master of Science thesis in Civil Engineering by Mohamad Mazen Alrifai entitled, “Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments”, submitted in April 2019. Thesis advisor is Dr. Farid Abed and thesis co-advisor is Dr. Tamer El Maaddawy. Soft and hard copy available....
Saved in:
| Main Author: | |
|---|---|
| Format: | doctoralThesis |
| Published: |
2019
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/11073/16453 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1864513444120625152 |
|---|---|
| author | Alrifai, Mohamad Mazen |
| author_facet | Alrifai, Mohamad Mazen |
| author_role | author |
| dc.contributor.none.fl_str_mv | Abed, Farid El Maaddawy, Tamer |
| dc.creator.none.fl_str_mv | Alrifai, Mohamad Mazen |
| dc.date.none.fl_str_mv | 2019-05-30T09:55:03Z 2019-05-30T09:55:03Z 2019-04 |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | 35.232-2019.19 http://hdl.handle.net/11073/16453 |
| dc.language.none.fl_str_mv | en_US |
| dc.subject.none.fl_str_mv | Fiber-matrix interface Hydrolysis Scanning electron microscopy Degradation Fiber-reinforced plastics Environmental testing Basalt Fibrous composites |
| dc.title.none.fl_str_mv | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/doctoralThesis |
| description | A Master of Science thesis in Civil Engineering by Mohamad Mazen Alrifai entitled, “Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments”, submitted in April 2019. Thesis advisor is Dr. Farid Abed and thesis co-advisor is Dr. Tamer El Maaddawy. Soft and hard copy available. |
| format | doctoralThesis |
| id | aus_ae1db5c6e7e901d4570f9dd9e833d34c |
| identifier_str_mv | 35.232-2019.19 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/16453 |
| publishDate | 2019 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh EnvironmentsAlrifai, Mohamad MazenFiber-matrix interfaceHydrolysisScanning electron microscopyDegradationFiber-reinforced plasticsEnvironmental testingBasaltFibrous compositesA Master of Science thesis in Civil Engineering by Mohamad Mazen Alrifai entitled, “Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments”, submitted in April 2019. Thesis advisor is Dr. Farid Abed and thesis co-advisor is Dr. Tamer El Maaddawy. Soft and hard copy available.In this research, the durability of Basalt Fiber Reinforced Polymers (BFRP) bars of 10 mm diameter is studied after direct exposure to severe conditions. The main aim is to investigate the degradation performance of the microstructure and tensile properties of these BFRP bars under accelerated conditionings that simulate the concrete’s environment. A set of BFRP bars was wrapped by concrete prisms that were immersed in tap water. Another set of BFRP bars was exposed to alkaline solution. In concrete-wrapped and alkaline exposures, temperatures of 20oC, 40oC, 60oC were applied in isolated tanks for durations of 2880, 5760, and 8760 hours. The experimental program included Uniaxial Tensile Tests, Scanning Electron Microscopy (SEM), Water Absorption, Differential Scanning Calorimetry Analysis (DSC), Fourier Transform Infrared Spectrometry (FTIR), Matrix Digestion, and Fiber Volume Fraction Analysis. This combination of tests was selected to validate the tensile strength values. The output of these tests is a comprehensive microstructural characterization and tensile behavior evaluation before and after exposure to harsh environments. As a result, the effect of temperature was more distinct than the effect of exposure periods. Higher temperatures and greater durations in a harsh environment tend to cause impairments on the structural and microstructural levels. These impairments are represented by tensile loss, debonding, matrix loss, moisture impregnation, and micro-cracking at the fiber-matrix interface. Maximum tensile loss, moisture loss, and matrix loss were recorded to be 29%, 1%, 29.8%, respectively, for the samples that were conditioned for 9 months at 60oC in alkaline environment.College of EngineeringDepartment of Civil EngineeringMaster of Science in Civil Engineering (MSCE)Abed, FaridEl Maaddawy, Tamer2019-05-30T09:55:03Z2019-05-30T09:55:03Z2019-04info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdf35.232-2019.19http://hdl.handle.net/11073/16453en_USoai:repository.aus.edu:11073/164532025-06-26T12:34:27Z |
| spellingShingle | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments Alrifai, Mohamad Mazen Fiber-matrix interface Hydrolysis Scanning electron microscopy Degradation Fiber-reinforced plastics Environmental testing Basalt Fibrous composites |
| status_str | publishedVersion |
| title | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments |
| title_full | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments |
| title_fullStr | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments |
| title_full_unstemmed | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments |
| title_short | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments |
| title_sort | Durability Study of Basalt Fiber-reinforced Bars Exposed to Harsh Environments |
| topic | Fiber-matrix interface Hydrolysis Scanning electron microscopy Degradation Fiber-reinforced plastics Environmental testing Basalt Fibrous composites |
| url | http://hdl.handle.net/11073/16453 |