How are they used in pre-mixed concrete?
ultra-fine particle powder pigments are packed in Ability’s Concrete Friendly® Paper Sacks. These are placed in the mixer barrel of a concrete transit truck with the wet ‘plastic’ concrete raw materials and mixed at the mixing barrel speed for at least ten (10) minutes. At this speed, and for this time, the bags disintegrate and disappear completely; even the sack stitching dissolves! Beneficially this proper mixing process ensures that the pigment grains are adequately distributed or ‘dispersed’. Proper pigment dispersion ensures uniformity of colour and the development of maximum colour strength.
