UHPC as maintenance and repair material for enhanced durability of transport infrastructures
|CBI Betonginstitutet AB - CBI Betonginstitutet AB - Stockholm
|Funding from Vinnova
|SEK 1 727 000
|October 2016 - September 2020
|The strategic innovation program InfraSweden
Purpose and goal
** Denna text är maskinöversatt ** The project´s aim and objective has been to develop a UHPC with reduced cement content for repair and strengthening as a durable alternative for repair of reinforced concrete structures within the infrastructure.
Expected results and effects
** Denna text är maskinöversatt ** The project developed a durable UHPC with reduced cement content that can be used with conventional repair methods. With good surface treatment of old concrete, a good adhesion can be obtained. With a smaller concrete cover, UHPC can have the same or better durability properties than traditional concrete. UHPC has less need for maintenance & repair, it is an interesting alternative.
Planned approach and implementation
** Denna text är maskinöversatt ** The project started with a state-of-the-art collection of UHPC and repair rules, standards and execution. Then material development began to reduce the cement content while retaining predetermined properties in fresh and hard condition. Then the developed UHPC pre-material properties were tested and as casting materials. Then large-scale tests were performed for the repair of a pillar in the lab. Last LCA & LCC analysis was performed. During the entire project, various presentations of the project took place.