The permeability of moulding sand was determined using a standard AFS sample by passing 2000cc of air at a gauge pressure of 10 g/cm² If the time taken for the air to escape was 1 min, the permeabilityNumber is
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The permeability of moulding sand was determined using a standard AFS sample by passing 2000cc of air at a gauge pressure of 10 g/cm² If the time taken for the air to escape was 1 min, the permeabilityNumber is
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- The permeability of moulding sand was determined using a standard AFS sample by passing 2000 cc of air at a gauge pressure of 10 g/cm² If the time taken for the air to escape was 1 min. Find out the permeability number.A sample of 500 g dry, when poured into a 2 litre capacity cylinder which is partially filled with water, displaces 188 cm³ of water. The density of water is 1 g/cm³. The specific gravity of the sand isThe following results were obtained by testing a sample of clay: water content 25.6%, liquid limit 43.5%, plastic limit 19.1%. From this compute the following: (a) Liquidity Index (b) Plasticity Index (c) Shrinkage Limit
- The dry unit weight of a sand sample in the loosest state is 13.34 kN and in the densest state, it is 21.19 kN. Its grain specific gravity is 270 and has a porosity of 33% P.S. Sorry for the question can’t fully grasp what was writtenA sample of sand has a relative density of 40% with a specific gravity of solids of 2.65. The minimum void ratio is 0.50 and the maximum void ratio is 0.95. What is the unit weight (in units of pcf) of this sand in the saturated condition?Pampanga sand with G, = 2.51 is mixed 26% by weight of water and compacted to produce a cylindrical %3D sample of 48 mm diameter and 96 mm long with 7% air porosity. Calculate the mass that will be required and the void ratio of the sample.
- Given: Weight of wet sand sample (Ww) = 500 g Weight of Dry sand sample (Wd) = 490 g Moisture content of the given sand is: 5% 4% 2% 1%The in situ dry density of a sand is 1.68 Mg/m3. The maximum and minimum dry densities, determined by standard laboratory tests, are 1.84 Mg/m3 and 1.47 Mg/m3, respectively. Determine the relative density of the sand. The particle specific gravity of the sand is 2.65. (Density of water 1 Mg/m3)Estimate the coefficient of permeability for a uniform sand where a sieve analysis indicates that the D10 size is 0.15 mm (by Hazen formula). The particle-size distribution curve for a sand indicates that the D15 size is 0.19 mm. If the sand deposit is in the dense or compact state, estimate the coefficient of permeability.
- A sample of dry, coarse-grained material was shaken through a nest of sieves, and the following results were obtained. Determine the following: AASHTO particle distribution: 1. Percentage of gravel. 2. Percentage of coarse sand. 3. Percentage of fine sand. 4. Percentage of silt and clay.An ASTM D 854 test was done on a sand. The data are shown below. Calculate the specific gravity. Mass of pychnometer = 46.1 grams Mass of pychnometer and dry soil = 67.4 grams Mass of pychnometer, dry soil and water = 157.7 grams Mass of pychnometer and water = 140.9 gramsThe result from the sieve analysis is shown: Calculate the coefficient of uniformity. Determine the percentage of sand? What is the effective size of the sample (in mm).