Abstract
In recent years, a large number of researches have focused on building and maintaining infrastructure used regional resources effectively. The purpose of this study is to develop new planting soil mixed with magnesium oxide and rice husk ash (RHA), the waste natural resource, for revegetation fields. In order to develop the good structure material, there needs to examine material properties of the magnesium improved soil mixed with RHA in splitting test. Splitting test was conducted on two types of soil (normal and mixed with RHA). Fracture process was qualitatively evaluated by image analysis and acoustic emission (AE). These results indicate that RHA changes the mechanical property of magnesium improved soil. Two improved soils tend to different characteristics of AE in spitting fracture. By evaluating from image analysis and SiGMA analysis, a relation between concentration of stain, AE event localization and crack mode is correlated.
