Pre-fabricated link slab—ultra high performance concrete

    公开(公告)号:US11851869B2

    公开(公告)日:2023-12-26

    申请号:US17234951

    申请日:2021-04-20

    IPC分类号: E04B1/04

    CPC分类号: E04B1/043

    摘要: Disclosed invention comprises innovations related to the fabrication process and the associated design of Prefabricated Link Slabs made using Ultra High-Performance Concrete (UHPC) for bridges hereinafter referred as PLS-UHPC. This disclosure is regarding methods of designing, manufacturing, and installing PLS-UHPC as connections between bridge spans. The invention includes the concept of installing PLS-UHPC which will provide numerous benefits such as faster construction in the field, and better maintenance of established systems.

    Pre-Fabricated Link Slab - Ultra High Performance Concrete

    公开(公告)号:US20220412069A1

    公开(公告)日:2022-12-29

    申请号:US17234951

    申请日:2021-04-20

    IPC分类号: E04B1/04

    摘要: Disclosed invention comprises innovations related to the fabrication process and the associated design of Prefabricated Link Slabs made using Ultra High-Performance Concrete (UHPC) for bridges hereinafter referred as PLS-UHPC. This disclosure is regarding methods of designing, manufacturing, and installing PLS-UHPC as connections between bridge spans. The invention includes the concept of installing PLS-UHPC which will provide numerous benefits such as faster construction in the field, and better maintenance of established systems.

    Prefabricated Precompressed Deck Joint Systems

    公开(公告)号:US20220349133A1

    公开(公告)日:2022-11-03

    申请号:US17246387

    申请日:2021-04-30

    IPC分类号: E01D19/06

    摘要: This invention is the concept and method of designing, fabricating in a factory environment and installing Deck Joint Systems (DJS) consisting of Ultra High Performance Concrete (UHPC) joint headers sandwiching the joint sealer and pre compressing the sealer using a plurality methods for applying compression. The deterioration of bridges due to the exposure to chlorides, most commonly from leaking joints, has been established as the biggest challenge for bridge owners in the US and abroad. In general, the lack of performance of deck joint systems constructed using state of the art practices is causing accelerated bridge deterioration, especially in areas where deicing chemicals are used.