Specific gravity is the ratio of the mass of unit volume of soil at a stated temperature to the mass of the same volume of gas-free distilled water at a stated temperature. The soil sample (50g) should if necessary be ground to pass through a 2mm IS Sieve. It is clear from (table 1) in the theory part that the test was done on a sand sample of soil due to the range of the values of specific gravity.
This is done by multiplying its specific gravity by the density of water (at proper temperature).
4.1.1 The specific gravity of soil solids is used to calculate the density of the soil solids. Specific gravity is commonly used in industry as a simple means of obtaining information about the concentration of solutions of various materials, or of quality control for polymer materials: to evaluate physical changes, or determine the degree of uniformity between samples or lots. Specific gravity, ratio of the density of a substance to that of a standard substance. Absolute or true specific gravity. Conclusion and Evaluation: The average value of specific gravity of the tested soil sample equals to 2.6474.
Apparatus: In this method, a pycnometer of 900-mL capacity is used for determination of specific gravity. The Gs value range should be between 2.60 and 2.80 (Coduto, 2011).
This is done by multiplying its specific gravity by the density of water (at proper temperature). M 3 = mass of bottle, soil …
DETERMINING THE SPECIFIC GRAVITY OF SOILS TXDOT DESIGNATION: TEX-108-E CONSTRUCTION DIVISION 3 – 4 LAST REVIEWED: SEPTEMBER 2014 6. 4.2 The term soil solids is typically assumed to mean naturally occurring mineral particles or soil … Calculate the specific gravity of soil solids using the following formula: Specific Gravity, G S …
The specific gravity of soil solids is defined as the weight of soil solids to the weight of an equal volume of water. Pycnometer method 2.
ADVERTISEMENTS: There are two basic methods of determining specific gravity of soils: 1. Absolute or true specific gravity If all the internal voids of soil particles (permeable and impermeable) are excluded for determining the true volume of solids, the specific gravity obtained is called absolute or true specific gravity. Unless or otherwise specified specific gravity values reported shall be based on water at 27 0 C. So the specific gravity at 27 0 C = K ´ Sp. All of the materials in our environment have a fixed specific gravity. M 2 = mass of the bottle and dry soil. The specific gravity of solid particles refers to the proportion of the mass density of solids to the proportion of water.