Development of super absorbent polymer jet grout cutting material

- Slurry reduction by improving the cutting force -

Abstract

High-pressure jet grouting is one of the common columnar soil improvements. Although its extensive utilization, a mud-like mixture, slurry, is ancillary generated during the application. The slurry is mainly floating soil particles with water which occurs in two ways: (1)-during the cutting water application and (2)- during the binder material injection. That means most waste slurry arises from the input materials, water, and binder. Therefore, decreasing the inputs might be a basis for the waste slurry reduction. This research suggests using a superabsorbent polymer aqueous solution as a jet grout cutting material for improving cutting performance and substituting the traditional way (water use). The applicability of the recommended method was examined with laboratory and in-situ experiments. In conclusion, the cases which use the superabsorbent solutions generate less slurry than the traditional method, although they have similar engineering performance values (strength and fluidity).