Auracast 270 - High strengths and workability maintenance admixtures
High strengths and workability maintenance admixtures. Dosage: 0.5-2.0% over cement weight.
Auracast 270 is a new generation additive with a high water reduction power that provides high performance concrete to all ages.
Auracast 270 is particularly suitable for the manufacture of concrete with a low A / C ratio.
Used at the same consistency, it allows a strong reduction of kneading water and thus obtain high mechanical strengths in the short and long term. Its accelerating hardening effect is particularly beneficial for the stripping / demolding at early ages.
Suitable for ready-mix concrete.
Prefabricated concrete in which an excellent surface finish is required.
Concrete pretensioned of high end resistances.
Specially designed for precast concrete segments where high initial strengths are required.
Suitable for precast concrete steam cured.
High power reducer.
Important improvement of both initial and final resistances.
It provides a very compact and good looking exterior.
Auracast 270 complies with the standard UNE-EN 934-2: 2010 Tables 3.1. And 3.2. As a high activity / superplasticizer water reducer.
Optimum dosage of Auracast 270 to achieve specific requirements should be determined by testing the materials and conditions under which it will be practiced.
This dosage may range from 0.5% to 2% s.p.c. As a starting point a dose of 0.8% by weight of cement can be used. For prefabricated segments or segments for tunnels, the best dose ranges from 0.6% to 1.0% on weight of cement.
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