Concretum® Q-FLASH 2/20 is a rapid-hardening concrete. It is ready for reloading only two hours after mixing. Furthermore, Concretum® Q-FLASH 2/20 dries very fast which accelerates the construction process.
Applications
All sorts of rapid-hardening concrete applications.
In general for casting concrete structures that dry extremely fast.
Replacement or maintenance of carriageway slabs of airport runways and aircraft stands.
Repair and casting of concrete carriageways with very short off-times.
Maintenance of concrete roads and concrete pavements.
Replacement and maintenance of solid railway basements.
Production of precast concrete elements with short stripping times.
Material properties
Concretum® Q-FLASH 2/20 enables the production of concrete elements which feature a compressive strength fc of at least 20 N/mm² about two hours after concrete mixing.
After 6 hours Concretum® Q-FLASH 2/20 arrives at a moisture content of 4.0 CM-%. This allows continuing working (e.g. application of waterproofing on bridges or building of floorings).
Depending on temperature and water content, the workability of Concretum® Q-FLASH 2/20 is good for 45 to 75 minutes after concrete mixing.
Concretum® Q-FLASH 2/20 features low shrinkage (εcs(t = ∞) max. 0.3 ‰) and low heat of hydration. Therefore, construction units made of Concretum® Q-FLASH 2/20 show low risk of cracking and are immensely durable.
Depending on the application, Concretum® Q-FLASH 2/20 can be reinforced by Concretum® SUPERFIBER and SUPERFIBER H. Please take notice of the product information on SUPERFIBER 40/8 and SUPERFIBER H.
