Development of fiber-reinforced calcia-modified soil and expansion into port applications
First written in FY2018. 5 of 6 entries say "Advanced", first in FY2019. Latest entry: FY2026.
No other company in this theme has enough history to compare yet.
- FY2026AdvancedAnnual report
「During the consolidated fiscal year, calcia-modified soil placed using a drop-mixing method was applied to a seaweed-bed creation project and a deep-dredging excavation backfill project. The Company gained experience in large-scale construction addressing the technical challenges of securing early strength for rapid creation and suppressing turbidity during backfilling.」
For calcia-modified soil, development progressed from mixing buckets, tremie pipes and other equipment to large-scale construction for seaweed-bed creation and backfilling of deep-dredging excavations. - FY2023AdvancedAnnual report
「Five companies jointly developed a batch-type in-situ mixing method using calcia-modified soil to enable surface improvement of soft seabed ground.」
For calcia-modified soil, development expanded beyond the use of mixing buckets and tremie pipes to a batch-type in-situ mixing method jointly developed by 5 companies. - FY2022AdvancedAnnual report
「During the consolidated fiscal year, calcia-modified soil was placed underwater using a newly developed tremie pipe in a shallow-water area creation project. The Company confirmed that rapid construction could be achieved while maintaining the quality of the calcia-modified soil and protecting the marine environment.」
For calcia-modified soil, following the introduction of the mixing bucket at construction sites, underwater placement using a tremie pipe was achieved, confirming that quality, environmental protection and rapid construction could be achieved together. - FY2020AdvancedAnnual report
「During the consolidated fiscal year, with a view to promoting the use of calcia-modified soil in port areas, the Company worked on developing technologies for dewatering, mixing and placement to improve construction efficiency. It developed a mixing bucket that enables more effective mixing of dredged soil and calcia-modifying material and introduced it at an actual construction site.」
For calcia-modified soil, the initiative progressed from developing mixing and placement technologies to introducing a mixing bucket at an actual construction site. - FY2019AdvancedAnnual report
「The Company is also developing efficient mixing methods and appropriate quality-control methods for calcia-modified soil, as well as high-performance calcia-modified soil technologies that can be applied to new uses through the addition of water-absorbing modifiers and short fibers.」
For calcia-modified soil, the Company is advancing efficient mixing and quality control, along with performance enhancement using water-absorbing modifiers and short fibers and expansion into new applications. - FY2018First statedAnnual report
「The Company developed fiber-reinforced calcia-modified soil with greater toughness than conventional calcia-modified soil and obtained an evaluation certificate through the private-sector port technology verification and evaluation program conducted by the Coastal Development Institute of Technology.」
The Company developed fiber-reinforced calcia-modified soil and obtained an evaluation certificate for private-sector port technology.