what is picnometer test in soil mechanics and which purpose we use

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  • https://gplinks.in/KZzp open the link say Verify and click on "I am not a robot" wherever it shows then it will redirect to YouTube video.
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  • The Pycnometer is used for determination of the specific gravity of soil particles of both fine grained and coarse grained soils.  These test methods cover the determination of the specific gravity of soil solids passing a sieve by means of a water pycnometer. Soil solids for these test methods do not include solids which can be altered by these methods, contaminated with a substance that prohibits the use of these methods, or are highly organic soil solids, such as fibrous matter which floats in water. Procedures for moist specimens such as organic soils, highly plastic fine grained soils, tropical soils, and soils containing halloysite and oven-dry specimens are provided. The apparatus is comprised of water pycnometer which shall be a stoppered flask, stoppered iodine flask, or volumetric flask; balance; drying oven; thermometer; dessicator; a system for entrapped air removal which shall be a hot plate or Bunsen burner or a vacuum pump or water aspirator; insulated container; non-corrosive smooth surface funnel; pycnometer filling tube with lateral vents; sieve; and blender with mixing blades. The specific gravity of the soil solids at the test temperature shall be calculated from the density of the soil solids and the density of water at the test temperature or from the mass of the oven dry soil solids; mass of pycnometer, water, and soil solids at the test temperature; and mass of the pycnometer and water at the test temperature.
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  • Determination of the specific gravity of soil particles of both fine grained and coarse grained soil.
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  • In soil mechanics ,pycnometer is used for determination of specific gravity and water content.
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  • The pycnometer is the instrument used for finding the specific gravity of aggregates
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  • The Pycnometer is used for determination of the specific gravity of soil particles of both fine grained and coarse grained soils.
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  • Pycnometer test is used to determine the water content in soil sample.
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  • Pycnometer is used to determine the specific gravity and water content of soil It looks like horlicks bottle with tapered end Step 1:Measure the empty weight(W1) Step 2:Fill the bottle with 3/4th of soil and weigh it(W2) Step 3:Pour the remaining 1/4th with water and weigh it(W3) Step 4:Remove all and clean it Step 5:Fill empty bottle full of water and weigh it(W4) Specific gravity=(W2-W1)/((W2-W1)-(W3-W4))
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  • Pichnometer test in soil mechanics is to find specific gravity & void ratio of soil using water & soil filled up in pichnometer apparatus one by one & both & weighing One by one
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  • It is used to determine specific gravity of soil.
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  • This method is use to find out the density of the soil.
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  • to determine the specific gravity of soils and also use to calculate the water content.
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  • Used to find specific cavity and water content
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  • pycnometer is use to determine the specific gravity of coarse soil.if the soil is fine grained then density bottle is used
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  • To determine specific gravity we use pycnometer
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  • pycnometer is use to determine the sp.gravity of the sample
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  • it could also be used to find the specific gravity of soils like laterite. if we need to find the specific gravity of cement, we use kerosene instead of water(to prevent hydration of cement)
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  • I am Basically Structural Engineer,I am taking relevent data which require for my work.there so many books for soil mechanics go through it 
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  • Its use to finding the Specific Gravity of Aggregates 
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