The four limits of consistency are: The jar is weighed empty (M 1). 4) sieve, by means of a water pycnometer. AIM: To determine the specific gravity of fine-grained soil by density bottle method as per IS: 2720 (Part III/Sec 1) – 1980. Water reduces cohesion making it easier to mould. The specific gravity depends upon the mass of solids present, which in turn depends upon the particle size. Specific gravity (G s) is a property of the mineral or rock material forming soil grains. It is defined as Method of measurement For fine soils a 50 ml density bottle may be used; for coarse soils a 500 ml or 1000 ml jar. Specific gravity. Specific gravity (G s) is a property of the mineral or rock material forming soil grains. 4. WATER CONTENT SPECIFIC GRAVITY AND SHRINKAGE LIMIT OF FINE GRAINED SOIL SOLIDS. 1.1 These test methods cover the determination of the specific gravity of soil solids that pass the 4.75-mm (No. Fine grained particles have less void space or pore space and coarse particles have more pore space. A quantity of dry soil is … The density of the soil-water suspension depends upon the concentration and specific gravity of the soil particles and the amount of dispersant added. It is very crucial to observe the range of particle sizes in soil as it heavily influences the key colloidal properties and has great many engineering implications. Soils containing organic matter and porous particles may have specific gravity values below 2.0. A) WATER CONTENT BY OVEN DRYING METHOD The jar is weighed empty (M 1). The water content at which the soil changes from one state to other are known as Atterberg limits or Consistency limits. It is defined as Method of measurement For fine soils a 50 ml density bottle may be used; for coarse soils a 500 ml or 1000 ml jar.
A quantity of dry soil is placed in the jar and the jar weighed (M 2).
The fine grained soil can have plastic state when water is added to it, which then can take any shape given to it. The size of the particles that constitute of soils may vary from that of boulders to that of large molecules.
Specific gravities can vary widely depending upon aggregate type. Some lightweight shales (not used in HMA production) can have specific gravities near 1.050, while other aggregate can have specific gravities above 3.000. Section Name: Soil and Foundation Engineering (CED 43) Designator of Legally Binding Document: IS 2720-3-1 Title of Legally Binding Document: Methods of test for soils, Part 3: Determination of specific gravity, Section 1: Fine grained soils
It is very important properties of fine grained … Hydrometer method is used to determine the particle size distribution of fine-grained soils passing 75 µ sieve.