Grain size characteristics and coefficient of permeability of carbonate and silica sand

• Main Authors: De Leon, Mario P., Nishi, Ryuichiro, Kitamura, Ryosuke
• Format: text
• Published: Animo Repository 2008
• Subjects: Sand—Philippines—Permeability; Sand—Japan—Permeability; Particles; Geotechnical Engineering
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/6204
• Institution: De La Salle University

This paper deals with the physical characteristics of three types of beach sediments, carbonate, silica and black sand, taken from natural and nourished beaches in the Philippines and Japan. Nineteen sediment samples were collected and analyzed for basic soil properties. Experimental procedures based on the American Society for Testing and Materials (ASTM, 1958)1 standards were applied to determine grain size and coefficient of permeability where the latter was verified by a numerical analysis using Kitamura model (1998)2 . As a result, this study has confirmed that grain size is directly proportional to coefficient of permeability. In addition, the field of coastal engineering uses median grain size D50 to describe beach sediment size and has been conveniently applied to estimate permeability. However, in the field of geotechnical engineering, D10 proves to be technically and empirically recognized as a better index for permeability determination.