Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints
Full-depth precast bridge decks are widely used to expedite bridge construction and enhance durability. These deck systems face the challenge that their durability and performance are usually dictated by the effectiveness of their field joints and closure joint materials. Hence, commercial ultra-hig...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/22/6964 |
| _version_ | 1797509541442617344 |
|---|---|
| author | Mohamed Abokifa Mohamed A. Moustafa |
| author_facet | Mohamed Abokifa Mohamed A. Moustafa |
| author_sort | Mohamed Abokifa |
| collection | DOAJ |
| description | Full-depth precast bridge decks are widely used to expedite bridge construction and enhance durability. These deck systems face the challenge that their durability and performance are usually dictated by the effectiveness of their field joints and closure joint materials. Hence, commercial ultra-high performance concrete (UHPC) products have gained popularity for use in such joints because of their superior mechanical properties. However, the proprietary and relatively expensive nature of the robust UHPC mixes may pose some limitations on their future implementation. For these reasons, many research agencies along with state departments of transportation sought their way to develop cheaper non-proprietary UHPC (NP-UHPC) mixes using locally supplied materials. The objective of this study is to demonstrate the full-scale application of the recently developed NP-UHPC mixes at the ABC-UTC (accelerated bridge construction university transportation center) in transverse field joints of precast bridge decks. This study included experimental testing of three full-scale precast bridge deck subassemblies with transverse NP-UHPC field joints under static vertical loading. The test parameters included NP-UHPC mixes with different steel fibers amount, different joint splice details, and joint widths. The results of this study were compared with the results of a similar proprietary UHPC reference specimen. The structural behavior of the test specimens was evaluated in terms of the load versus deflection, reinforcement and concrete strains, and full assessment of the field joint performance. The study showed that the proposed NP-UHPC mixes and field joint details can be efficiently used in the transverse deck field joints with comparable behavior to the proprietary UHPC joints. The study concluded that the proposed systems remained elastic under the target design service and ultimate loads. In addition, the study showed that the use of reinforcement loop splices enhanced the load distribution across the specimen’s cross-section. |
| first_indexed | 2024-03-10T05:19:13Z |
| format | Article |
| id | doaj.art-dacf59128789426994a1b557000ad4b7 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T05:19:13Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-dacf59128789426994a1b557000ad4b72023-11-23T00:11:36ZengMDPI AGMaterials1996-19442021-11-011422696410.3390/ma14226964Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field JointsMohamed Abokifa0Mohamed A. Moustafa1Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557, USADepartment of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557, USAFull-depth precast bridge decks are widely used to expedite bridge construction and enhance durability. These deck systems face the challenge that their durability and performance are usually dictated by the effectiveness of their field joints and closure joint materials. Hence, commercial ultra-high performance concrete (UHPC) products have gained popularity for use in such joints because of their superior mechanical properties. However, the proprietary and relatively expensive nature of the robust UHPC mixes may pose some limitations on their future implementation. For these reasons, many research agencies along with state departments of transportation sought their way to develop cheaper non-proprietary UHPC (NP-UHPC) mixes using locally supplied materials. The objective of this study is to demonstrate the full-scale application of the recently developed NP-UHPC mixes at the ABC-UTC (accelerated bridge construction university transportation center) in transverse field joints of precast bridge decks. This study included experimental testing of three full-scale precast bridge deck subassemblies with transverse NP-UHPC field joints under static vertical loading. The test parameters included NP-UHPC mixes with different steel fibers amount, different joint splice details, and joint widths. The results of this study were compared with the results of a similar proprietary UHPC reference specimen. The structural behavior of the test specimens was evaluated in terms of the load versus deflection, reinforcement and concrete strains, and full assessment of the field joint performance. The study showed that the proposed NP-UHPC mixes and field joint details can be efficiently used in the transverse deck field joints with comparable behavior to the proprietary UHPC joints. The study concluded that the proposed systems remained elastic under the target design service and ultimate loads. In addition, the study showed that the use of reinforcement loop splices enhanced the load distribution across the specimen’s cross-section.https://www.mdpi.com/1996-1944/14/22/6964ultra-high performance concretenon-proprietary ultra-high performance concreteprecast bridge deckfield jointsaccelerated bridge constructionfull-scale testing |
| spellingShingle | Mohamed Abokifa Mohamed A. Moustafa Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints Materials ultra-high performance concrete non-proprietary ultra-high performance concrete precast bridge deck field joints accelerated bridge construction full-scale testing |
| title | Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints |
| title_full | Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints |
| title_fullStr | Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints |
| title_full_unstemmed | Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints |
| title_short | Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints |
| title_sort | experimental behavior of precast bridge deck systems with non proprietary uhpc transverse field joints |
| topic | ultra-high performance concrete non-proprietary ultra-high performance concrete precast bridge deck field joints accelerated bridge construction full-scale testing |
| url | https://www.mdpi.com/1996-1944/14/22/6964 |
| work_keys_str_mv | AT mohamedabokifa experimentalbehaviorofprecastbridgedecksystemswithnonproprietaryuhpctransversefieldjoints AT mohamedamoustafa experimentalbehaviorofprecastbridgedecksystemswithnonproprietaryuhpctransversefieldjoints |