Retarder

Setting retarders are chemical admixtures used in concrete to delay its setting time, providing several benefits, especially in challenging conditions like hot weather. In high temperatures, concrete tends to set rapidly, reducing workability and potentially compromising its quality. Retarders slow down the chemical hydration process of cement, giving construction teams more time to mix, transport, place, and finish the concrete before it begins to set.

These admixtures are particularly useful for large-scale projects where concrete must be transported over long distances or placed in complex forms. They also help in preventing cold joints by ensuring that successive layers of concrete bond well, as the extended setting time allows for continuous pouring. Additionally, retarders are valuable for projects requiring intricate finishes or precise shaping, as they enhance the flexibility and manageability of the mix during the working phase.

Our Solutions:

CHRYSO®
AL 810

a new generation liquid set retarding plasticizing admixture, for concretes containing classic alumina cements or concretes with Alag cements (aluminous cements and synthetic alumina aggregates).

CHRYSO®
Fondu Retard

Fondu Retard is an admixture specifically formulated for aluminous cement. Fondu Retard is mainly intended to delay the setting of concrete with a base of aluminous cement.