concrete

CHRYSO®Tard CE

Set Retarding admixture

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CHRYSO^® Tard CE is classified as a set retarding admixture according to SANS 50934-2 (EN 934-2). The admixture thus induces the following major effects in a concrete mix:
Extends the time of commencement of transition of the mix, from the plastic to the rigid state.

CHRYSO^® Tard CE modifies the hydrating reactions of the concrete and principally retards the time of initial setting.
CHRYSO^®Tard CE does not increase the length of time between the beginning and end of setting. Therefore, concrete retarded with CHRYSO^®Tard CE will harden normally as soon as setting starts and high early and ultimate strengths can be obtained. Therefore, with the use of CHRYSO^®Tard CE, concrete will remain in a state, which enables the revival of consistency (workability) lost over time, through the addition of appropriate admixtures.
CHRYSO^®Tard CE has no surface tension effects. Its use in concrete, in no way modifies the consistency (workability) of the concrete.