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...

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Autores principales:	Mohamed Abokifa, Mohamed A. Moustafa
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ultra-high performance concrete non-proprietary ultra-high performance concrete precast bridge deck field joints accelerated bridge construction full-scale testing Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/dacf59128789426994a1b557000ad4b7
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spelling	oai:doaj.org-article:dacf59128789426994a1b557000ad4b72021-11-25T18:15:13ZExperimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints10.3390/ma142269641996-1944https://doaj.org/article/dacf59128789426994a1b557000ad4b72021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6964https://doaj.org/toc/1996-1944Full-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.Mohamed AbokifaMohamed A. MoustafaMDPI AGarticleultra-high performance concretenon-proprietary ultra-high performance concreteprecast bridge deckfield jointsaccelerated bridge constructionfull-scale testingTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6964, p 6964 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ultra-high performance concrete non-proprietary ultra-high performance concrete precast bridge deck field joints accelerated bridge construction full-scale testing Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	ultra-high performance concrete non-proprietary ultra-high performance concrete precast bridge deck field joints accelerated bridge construction full-scale testing Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Mohamed Abokifa Mohamed A. Moustafa Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints
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.
format	article
author	Mohamed Abokifa Mohamed A. Moustafa
author_facet	Mohamed Abokifa Mohamed A. Moustafa
author_sort	Mohamed Abokifa
title	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_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_sort	experimental behavior of precast bridge deck systems with non-proprietary uhpc transverse field joints
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/dacf59128789426994a1b557000ad4b7
work_keys_str_mv	AT mohamedabokifa experimentalbehaviorofprecastbridgedecksystemswithnonproprietaryuhpctransversefieldjoints AT mohamedamoustafa experimentalbehaviorofprecastbridgedecksystemswithnonproprietaryuhpctransversefieldjoints
_version_	1718411469761019904

Experimental Behavior of Precast Bridge Deck Systems with Non-Proprietary UHPC Transverse Field Joints

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