Development of Connection Structures and Grouting Materials for Prestressed Concrete Precast Pavement Slabs
First written in FY2020. 3 of 4 entries say "Advanced", first in FY2021. Latest entry: FY2023.
5 other companies' latest entry also says "Advanced".
- FY2023AdvancedAnnual report
「In fiscal 2022, the company completed development of a new joint structure that facilitates partial replacement of pavement slabs and began marketing it. It also used a grouting material with further improved durability in actual airport pavement construction.」
For precast PC pavement slabs, the company completed development of a new joint structure and began marketing it, and progressed to using the improved grouting material in actual airport construction. - FY2022AdvancedAnnual report
「In fiscal 2021, the company conducted a trial installation of precast PC pavement slabs using a new joint structure at the container yard of Oi Pier in Tokyo Bay. It also completed development and construction testing of a grouting material with further improved durability, and planned actual construction for fiscal 2022.」
For precast PC pavement slabs, the company completed trial installation of a new joint structure and development and construction testing of grouting materials, progressing to plans for actual construction in fiscal 2022. - FY2021AdvancedAnnual report
「In fiscal 2020, the company conducted a trial installation at Tokyo International Airport, filling voids between precast PC pavement slabs and the ground with an improved grouting material, and confirmed its workability and filling performance.」
For precast PC pavement slab connection and grouting materials, the company conducted a trial installation at Tokyo International Airport and confirmed workability and filling performance. - FY2020First statedAnnual report
「There remains room for improvement in the connection structures between precast PC pavement slabs and in the grouting materials used to fill voids between the slabs and the ground. The company is developing new connection structures and grouting materials and plans to conduct demonstration tests toward practical application.」
For precast PC pavement slabs, the company is developing connection structures and grouting materials and plans to conduct demonstration tests toward practical application.