It has been established that the abrasive slurry jet (ASJ) or DIAjet system can outperforma conventional abrasive water jet (AWJ). This is, in part, because the ASJ deliverscomparable performance at a much lower pressure than the conventional abrasive waterjet (AWJ). It has been shown that the introduction of a small amount of polymer into theASJ process leads to a significant improvement in cutting performance. Variouspolymers impact the cutting performance of abrasive suspension jets differently due todifferences in their rheological properties. The study compares the effectiveness ofpolyacrylamide and xanthan based polymers in an abrasive slurry jet system. Theparameters studied include hydration time, the gel strength, ability to hold the abrasive instable suspension, and, viscosity variations with shear-rate. Jet penetration distance inconcrete blocks was used as a measure of the effectiveness of the different polymers andconcentrations.
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