Abstract
Assessment was made of the creep properties of sodium silicate-grouted sands. A simple measuring method of the creep upper yield value was also examined. Sodium silica grouts used for this experiment can be divided into the following three types. One type is grout that gels when placed in an alkaline condition, and the second gels in an acidic condition. The third is a colloidal sol grout that increased the particle by polymerization. We researched the creep properties of these grouts. As a result, the structures of gel did not influence the creep upper yield value of grouted sand. However, the difference of the gel structure which differed in the type of grouting material affected the creep fracture time of grouted sand. The short term increment method can be used as a simple measuring method to obtain the creep upper yield value.
