Indian Standard (IS) Light Compaction test is usually conducted in 3 layers in a 1000 cc mould. How many blows per layer would be necessary if the above test is conducted in a 2250 cc mould?
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- The specific gravity and absorption test (ASTM C128) were performed on fine aggregate. The following data were obtained.Given:Mass of SSD sand = 400.0 gMass of pycnometer with water = 520.0 gMass of pycnometer with water plus sand = 850.0 gMass of dry sand = 397.0 gRequired:a) absorption, in percentb) free moisture if the sand in the stockpile has a moisture content of 3% bbbbbbbbbbbbbbClass No= 5202 A 500 g sample of sand in the SSD condition was placed in a jar, which was then filled with water. The combined weight was (your class Number + 1600) g. The weight of jar filled with water only was 1400g. Estimate the bulk specific gravity (SSD) of the sand.The specific gravity and absorption test (ASTM C128) was performed on fineaggregate and the following data were obtained:Mass of SSD sand = 500.0 gMass of pycnometer with water only = 623.0 gMass of pycnometer with sand and water = 938.2 gMass of dry sand = 495.5 gCalculate the specific gravity values (dry bulk, SSD, and apparent) and theabsorption of the fine aggregate.
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- A test is set up as shown. A cylindrical mold 4" in diameter is filled with silt to height of H1=0.2ft whose coefficient of permeability is 3.6x10^-4 ft/min. A second coaxial mold is placed on the top of the first mold whose inside legs of the square tube is 1.5" and whose height is H2=0.3ft. Its thickness is negligible. The inside of the second mold is filled with sand whose coefficient of permeability is 2.7x10^-3 ft/min but the outside of the second mold is filled with the same silt. The test set up is constant head. Water is placed on molds and maintained at the level 1.25ft above the level of outlet. It may be consider that the system consist of fictitious soil of thickness H1+H2 and the coefficient of permeability of both soils is Kf. What will be the total flow of water in ft^3/min?A test is set up as shown. A cylindrical mold 4" in diameter is filled with silt to height of H1=0.2ft whose coefficient of permeability is 3.6x10^-4 ft/min. A second coaxial mold is placed on the top of the first mold whose inside legs of the square tube is 1.5" and whose height is H2=0.3ft. Its thickness is negligible. The inside of the second mold is filled with sand whose coefficient of permeability is 2.7x10^-3 ft/min but the outside of the second mold is filled with the same silt. The test set up is constant head. Water is placed on molds and maintained at the level 1.25ft above the level of outlet. It may be consider that the system consist of fictitious soil of thickness H1+H2 and the coefficient of permeability of both soils is Kf, determine the Kf in ft/min.A test is set up as shown. A cylindrical mold 4" in diameter is filled with silt to height of H1=0.2ft whose coefficient of permeability is 3.6x10^-4 ft/min. A second coaxial mold is placed on the top of the first mold whose inside legs of the square tube is 1.5" and whose height is H2=0.3ft. Its thickness is negligible. The inside of the second mold is filled with sand whose coefficient of permeability is 2.7x10^-3 ft/min but the outside of the second mold is filled with the same silt. The test set up is constant head. Water is placed on molds and maintained at the level 1.25ft above the level of outlet. It may be consider that the system consist of fictitious soil of thickness H1+H2 and the coefficient of permeability of both soils is Kf, determine the volume of water collected after 55 minutes.