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Will the steel fibers ball up in the mix?
A properly designed concrete mix is essential for avoiding fiber balling. in order to avoid the potential for fiber balling related to fibers with a high l/d (aspect) ratio (meaning high performing fibers), glued fiber technology has been developed. Glued fiber bundles will spread the glued bundles evenly on “macro level” and during mixing the bundles separate into individual fibers. in essence the glued bundle temporarily lowers the aspect (l/d) ratio of the fibers for easy mixing. that´s how balling can effectively be avoided and a homogenously mix of high performing steel fiber reinforced concrete can be achieved.