Effect of Using Glass Fiber Reinforced Polymer (GFRP) and Deformed Steel Bars on the Bonding Behavior of Lightweight Foamed Concrete
The study aims to conduct a direct pull-out test on fifty-four cube specimens considering different variables, including the type of reinforcement (sand-coated glass fiber-reinforced polymer (GFRP) and ribbed steel bars); the type of concrete (normal weight concrete NWC and lightweight foamed concre...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-04-01
|
| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/13/5/1153 |
| _version_ | 1797600794786136064 |
|---|---|
| author | Suhad M. Abd Rafal Hadi Shaker Abdal Saba Shamim Hadee Mohammed Najm Mohanad Muayad Sabri Sabri |
| author_facet | Suhad M. Abd Rafal Hadi Shaker Abdal Saba Shamim Hadee Mohammed Najm Mohanad Muayad Sabri Sabri |
| author_sort | Suhad M. Abd |
| collection | DOAJ |
| description | The study aims to conduct a direct pull-out test on fifty-four cube specimens considering different variables, including the type of reinforcement (sand-coated glass fiber-reinforced polymer (GFRP) and ribbed steel bars); the type of concrete (normal weight concrete NWC and lightweight foamed concrete LWFC); the diameter of the reinforcing bars (10 mm; 12 mm; and 16 mm) and the bonded length (3∅, 4∅, and 5∅). The hybrid fiber hooked-end steel (0.4% by volume) and polypropylene (0.2% by volume), respectively were used to improve the properties of LWFC by converting the brittle failure to ductile. The results showed that in the case of strengthened foamed concrete (FC), the bond strength with steel bars was greater compared to that with the GFRP bars. The bond strength ratio between the GFRP and steel bars of the FC specimens was found to vary between 37.8–89.3%. Additionally, in all specimens of FC, pull-out failure was witnessed with narrower crack width compared to NWC. Furthermore, mathematical equations have been proposed for predicting the bond strength of FC with steel and GFRP bars and showed good correlation with the experimental results. |
| first_indexed | 2024-03-11T03:52:58Z |
| format | Article |
| id | doaj.art-a71dc9cf9bb246c08b90536877dfc11b |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T03:52:58Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-a71dc9cf9bb246c08b90536877dfc11b2023-11-18T00:44:16ZengMDPI AGBuildings2075-53092023-04-01135115310.3390/buildings13051153Effect of Using Glass Fiber Reinforced Polymer (GFRP) and Deformed Steel Bars on the Bonding Behavior of Lightweight Foamed ConcreteSuhad M. Abd0Rafal Hadi1Shaker Abdal2Saba Shamim3Hadee Mohammed Najm4Mohanad Muayad Sabri Sabri5Department of Highways & Airports Engineering, College of Engineering, University of Diyala, Baqubah 32001, IraqDepartment of Civil Engineering, Bilad Alrafidain University College, Baghdad 32001, IraqDepartment of Civil Engineering, College of Engineering, University of Duhok, Duhok 42001, IraqCivil Engineering Section, University Polytechnic, Jamia Millia Islamia, New Delhi 110025, IndiaDepartment of Civil Engineering, Zakir Husain Engineering College, Aligarh Muslim University, Aligarh 202001, IndiaPeter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaThe study aims to conduct a direct pull-out test on fifty-four cube specimens considering different variables, including the type of reinforcement (sand-coated glass fiber-reinforced polymer (GFRP) and ribbed steel bars); the type of concrete (normal weight concrete NWC and lightweight foamed concrete LWFC); the diameter of the reinforcing bars (10 mm; 12 mm; and 16 mm) and the bonded length (3∅, 4∅, and 5∅). The hybrid fiber hooked-end steel (0.4% by volume) and polypropylene (0.2% by volume), respectively were used to improve the properties of LWFC by converting the brittle failure to ductile. The results showed that in the case of strengthened foamed concrete (FC), the bond strength with steel bars was greater compared to that with the GFRP bars. The bond strength ratio between the GFRP and steel bars of the FC specimens was found to vary between 37.8–89.3%. Additionally, in all specimens of FC, pull-out failure was witnessed with narrower crack width compared to NWC. Furthermore, mathematical equations have been proposed for predicting the bond strength of FC with steel and GFRP bars and showed good correlation with the experimental results.https://www.mdpi.com/2075-5309/13/5/1153bonding behaviorribbed steel barsGFRPfoamed concretedirect pull-out testbond stress–slip relations |
| spellingShingle | Suhad M. Abd Rafal Hadi Shaker Abdal Saba Shamim Hadee Mohammed Najm Mohanad Muayad Sabri Sabri Effect of Using Glass Fiber Reinforced Polymer (GFRP) and Deformed Steel Bars on the Bonding Behavior of Lightweight Foamed Concrete Buildings bonding behavior ribbed steel bars GFRP foamed concrete direct pull-out test bond stress–slip relations |
| title | Effect of Using Glass Fiber Reinforced Polymer (GFRP) and Deformed Steel Bars on the Bonding Behavior of Lightweight Foamed Concrete |
| title_full | Effect of Using Glass Fiber Reinforced Polymer (GFRP) and Deformed Steel Bars on the Bonding Behavior of Lightweight Foamed Concrete |
| title_fullStr | Effect of Using Glass Fiber Reinforced Polymer (GFRP) and Deformed Steel Bars on the Bonding Behavior of Lightweight Foamed Concrete |
| title_full_unstemmed | Effect of Using Glass Fiber Reinforced Polymer (GFRP) and Deformed Steel Bars on the Bonding Behavior of Lightweight Foamed Concrete |
| title_short | Effect of Using Glass Fiber Reinforced Polymer (GFRP) and Deformed Steel Bars on the Bonding Behavior of Lightweight Foamed Concrete |
| title_sort | effect of using glass fiber reinforced polymer gfrp and deformed steel bars on the bonding behavior of lightweight foamed concrete |
| topic | bonding behavior ribbed steel bars GFRP foamed concrete direct pull-out test bond stress–slip relations |
| url | https://www.mdpi.com/2075-5309/13/5/1153 |
| work_keys_str_mv | AT suhadmabd effectofusingglassfiberreinforcedpolymergfrpanddeformedsteelbarsonthebondingbehavioroflightweightfoamedconcrete AT rafalhadi effectofusingglassfiberreinforcedpolymergfrpanddeformedsteelbarsonthebondingbehavioroflightweightfoamedconcrete AT shakerabdal effectofusingglassfiberreinforcedpolymergfrpanddeformedsteelbarsonthebondingbehavioroflightweightfoamedconcrete AT sabashamim effectofusingglassfiberreinforcedpolymergfrpanddeformedsteelbarsonthebondingbehavioroflightweightfoamedconcrete AT hadeemohammednajm effectofusingglassfiberreinforcedpolymergfrpanddeformedsteelbarsonthebondingbehavioroflightweightfoamedconcrete AT mohanadmuayadsabrisabri effectofusingglassfiberreinforcedpolymergfrpanddeformedsteelbarsonthebondingbehavioroflightweightfoamedconcrete |