On Quality Control for Shallow Soil Stabilization Method by Cement

Abstract

In general, the effect of shallow soil stabilization is examined by the unconfined compressive strength of soil mixed with stabilizer in laboratory. Therefore, the in-situ strength of ground stabilized has not been conformed to be satisfied the criteria. In this paper, the author proposes a new evaluating method of shallow soil stabilization, i.e. the impact value of repulsion power of rammer fell down. The relation between the impact value and K value was examined for it, and it was found that the impact value was proportional to K-value. The author applied the impact value and the K-value to a quality control of ground in a factory. The other items used for the quality control are the unconfined compressive strength and a color identification test by phenolphthalein.