ANALYSIS OF SOIL GRAIN SIZE DISTRIBUTION TO DETERMINE SOIL TYPE USING THE ASTM METHOD

Abstract

Soil is defined as material consisting of aggregates (grains) of solid minerals that are not cemented (chemically bound) to each other from weathered organic materials (which are solid particles) accompanied by liquids and gases that fill the spaces. empty between the particles. Soil grains greatly influence the properties of the soil, so that the size of the grains will differentiate the soil in naming and classification categories. The aim of this research is to determine the distribution of soil grain sizes using the Sieve Analysis method and Hydrometer testing and determine the type of soil based on the distribution of soil grain sizes. . The soil samples analyzed were taken from the land excavation project for the construction of the State Finance office building in the city of Jayapura. The results of the laboratory tests carried out were obtained. The grain size distribution of soil samples in the Jayapura Finance Building area which was tested using sieve analysis testing and hydrometer testing, had grain sizes ranging from from 0% Gravel, 54.545% sand, 20.186% Silt and 25.269% Clay. Based on the test results, it can be concluded that the soil in the area of the State Finance Office Building located in the city of Jayapura based on the grain size distribution of the ASTM D 653 method is included in the sandy loam soil type.