STUDY ON EVALUATION OF BOND CHARACTERISTIC FOR SPRAYING MATERIAL WITH BAMBOO

Abstract

In this study, bamboo and solidification material are used as spraying materials and their bond characteristic with the mortar as the base material is evaluated. Four different proportions of specimens are prepared as the spraying material. The types of fine aggregate, the mixing ratio, and the bamboo content are applied as the different parameters. The box shear test is used in this study to investigate these characteristics. As a result, under the same mixing ratio, the bond strength of the spraying material mixed with flying sand is greater than that of the splayed material mixed with decomposed granite soil. Also, the strength of the spraying material using flying sand decreases with increasing the bamboo fiber amount, while the strength of the spraying material using decomposed granite soil increases. Therefore, it is clarified that although using flying sand is effective as the spraying material, in the case of using decomposed granite soil, increasing the bamboo fiber amount is required.