Poly Fiber Balls in Concrete: Why they happen and how to mix without clumps
Introduction Poly fiber balls are clumps that form when poly fiber additives ball up in wet concrete. They look like stringy lumps that don’t disperse evenly through the mix. Understanding why helps you avoid them when you’re DIY mixing. Causes include too much fiber, uneven distribution, and mixing too aggressively. Add fibers gradually, mix at […]
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