Admixture for cementitious grouts for pre-stressing cables. Dosage: 0.5-1.5% over cement weight.
Cebex NK is supplied as a powder additive. The material is a combination of additives that allow the use of a low water / cement ratio with the consequent increase in strength and durability.
An expansion that prevents the natural settlement and plastic retraction of the grout helping to its stability and cohesion, and at the same time completely eliminating the segregation and exudation of the grout.
Cebex NK complies with UNE-EN 934-4: 2010 Table 1 as an additive for grout.
Tests carried out on cement slurries show that these slurries meet the requirements specified in the standard UNE-EN445: 2010 "Pretender tendon grouts. "Test Methods".