Then the moist soil in the mould was compacted in 3 equal layers, with 25 blows from the 2.6 Kg rammer on each layer. The extension was removed and the compacted soil was levelled off carefully to the top of the mould by means of a straight edge. Then the mould and soil was weighed. The soil was removed from the mould and a representative soil sample was obtained for water content determination. The process repeated again after adding suitable amount of water to the soil in an increasing order.
Calculate the density of the soil 14. Make the surface of the soil in the shear box plane. 15. Carefully place the upper gripper plate/stone and loading block on top of levelled soil in the shear box. 16.
Assemble the shear box as indicated in Figure 1. Test specimen being the soil sample. Place the shear box in position in the carriage and adjust the worm drive unit and tailstock (by hand), so that contact is just
5. Place 3-5 seeds in each indentation, then push some soil over top of them to cover them and make the surface relatively level. 6. Poke a hole in the cap of the plastic water bottle, and use this to lightly water the seeds, making the soil damp. 7.
MODEL PARAMETERS The silty sand used in this study was processed by mixing 40% quarry dust into the fine sand. The fine sand is collected from Cherthala, Kerala and quarry dust is procured from Blue Diamond M-sand manufacturers, Kattangal, Kerala. For preparing the soil combination, the ingredients were put into a container and mixed thoroughly to have a homogeneous soil mix until there was no noticeable colour difference and segregation. All the basic properties tests were performed on the soil combinations, and the properties are listed in Tables 1. A combined dry sieve and hydrometer analysis was carried out to obtain the particle size distribution.
According to Grobler etl[5], selected a cut level of CT through the superior vertebral end-plate of the lower vertebra and parallel to the inferior vertebral end-plate of the superior vertebra , then three lines (line a,b,c)were marked ,among them, line a is the tangent through trailing edge of the vertebral body and line a,b through anteromedial and posterolateral point of the corresponding facet joint respectively. Angle ab and angle ac(Figure 1) as the corresponding facet joint angle were recoded. Tropism The definition of tropism is first proposed by Brailsford JF[12] .It refers to the asymmetry of bilateral facet joint, the absolute value of the angle difference of bilateral articular facet joint as the tropism quantitative value Pfirrmann grading Intervertebral disc was classified into gradeⅠ- Ⅴ (图2) by Pfirrmann et al [13] based on image of sagittal MRI T2-weighted images（图3） The angle of the facet joint was measured by two independent individuals. If the difference between the two data does not exceed 2 degrees, the average of the two measurements is taken as the angle of the corresponding facet joint. If, on the contrary, the two measured values differ by more than 2 degrees, repeat the measurement until the standard is
5. INSTALLATION DETAILS The porous asphalt is installed over a 1” layer of chocker course and bed of uniformly graded, clean washed crushed rock that is usually 18-36” deep. A layer of geotextile fabric separates the crushed rock from the underlying soil to prevent any fines from moving up into the storage bed. The bottom of the recharge bed is excavated to a level surface and is not compacted to allow the water to distribute and infiltrate evenly over the entire bottom bed area. STEP-1 Leveling of road sub base
Mould with base plate is weighted and grease is applied lightly on the interior surfaces of the mould. Water is added to the soil its moisture content is started from 8% or 10% and then mixed thoroughly using the trowel until the soil gets a uniform colour. Compact the moist soil in three equal layers using a rammer of mass 2.6 kg and having free fall of 31 cm. Distribute the blows evenly, and apply 25 blows in each layer. Rotate the collar so as to remove it, trim off the compacted soil flush with the top of the mould, and weigh the mould with soil and base plate.
SUITABILITY OF CRUSHER SAND ON CO2 MOULDING PROCESS PrabhuShankar.Na, P.Karunakaranb a PG Scholar, Erode Sengunthar Engineering College, Erode b Assistant Professor, Erode Sengunthar Engineering College, Erode Abstract The silica sand as a single source of supply for construction and foundry applications has lead to the depletion of the resource and makes it availability doubtful in the future. Thus the increased consumption rate of silica sand has lead to increase in price of foundry sand and we are in need to search for other resources which suitably replaces silica sand in foundry industry to meet the industrial demands. The “Crusher Sand” that is the available by-product from the manufacture of construction aggregates,
While, Geologist distinguish soils as the disintegrated rock material which has move away from the origin place. But, the civil engineer believed that soil as "the loose unconsolidated inorganic material on the earth's surface produced by the disintegration of rocks, overlying hard rock with or without organic matter".