CHRYSO®Tard delays the hydration of cement by momentarily blocking the surface of the cement particles and principally retards the initial setting time.
CHRYSO®Tard does not increase the length of time between the beginning and end of setting.
Hence, concrete retarded with CHRYSO®Tard will harden normally as soon as the setting starts and ultimate compressive strengths can be obtained. It is particularly suitable for Ready mix concrete market with stable workability over a longer period.
Longer open time for concreting
Improves retention and workability
No surface tension effects
No change in consistency of concrete
Products
CHRYSO®Tard CXR
CHRYSO® Tard CXR is a Non-Staining retarder for Exposing Aggregate from Concrete. This retards the concrete surface to a depth of approx.4 to6mm when a thin layer is applied on newly placed concrete.
Domains of application
Preferably sprayed on the newly laid concrete surface after the surface water evaporated in the big surface area like raft concrete.
The treated surface with CHRYSO® Tard CXR should be washed with jet water after the bottom concrete get set / attend initial setting to expose the aggregate for subsequent fresh concreting / other treatments for aesthetic look.