Triaxial Lab Report Example | Topics and Well Written Essays - 1250 words

Triaxial - Lab Report Example The clisp studio was then set up followed by completing the Pressurising Triaxial Cell checklist. The test stages were then made to run. After completing the stages, the test was terminated using the Clip Studio. The next procedure was completing the Draining Triaxial Cell checklist. The end point was the mohr cicle, for each of the sampled, the angle of shearing resistance of the soil and the apparent cohesion Introduction The triaxial shear test is a method that is commonly used in measuring the mechanical properties of deformable solids such as rock, granular materials, powder, and soil (Byrne 34). For loose granular material such as gravel or sand, the material is often contained in cylindrical latex sleeve with platen closing off the bottom and top ends (Byrne 25). Such as cylinder is immersed in a water bath or any other fluid, which provides pressure along the cylinder sides. Then the top platen is mechanically driven along the cylinder axis with a view to squeeze the material . Generally, there are a number of variations on the test. Although the term triaxial tends to suggest that stresses may be different in 3 directions, this may not be true. In this test with water or oil as a confining medium, confining pressures are all equal in all the directions. This means that for a compressed test, in principle stresses, for compression test, ?1 ? ?2 = ?3, while for tensile test, ?1 = ?2 ? ?3) (Chen 32). Therefore, it is only in true triaxial test that the stresses in all directions (?1 ? ?2 ? ?3) can be different. The distance travelled by the upper platen is then measure as a function of force needed to push it while the pressure of the water surrounding it is carefully controlled (Chen 24). For cohesive materials such as rock, and clay, the test is quite similar to that of loose granular materials (Ferrari 56). However, the test for cohesive materials takes more time than the test for loose materials. For testing of rocks, the sleeve is always a thin metal sheet rather than latex. It is rare to perform a triaxial testing on a rock because the high pressures and forces has to break the rock sample. This is makes it cumbersome and costly.This experiment was focused on undrained triaxial compression test (Ferrari 44). The aim of this lab experiment was to determine the undrained shear strength of soil using triaxial compression test. Procedure The sample was extruded from a tube and trimmed to size with the diameter of the soil as 38mm and its leagth of 76mm. The sample was sleeved with a rubber membrane. The sample was placed on the pedestal at the botton side of the seal and cell using a rubber ring. The loading cap was then placed at the top of a sample and sealed with rubber ring. The top drainage tube was then secured. The cell was mounted over the sample and filled according to the flooding Triaxial cell checklist. The clisp studio was then set up followed by completing the Pressurising Triaxial Cell checklist. The test stages were then made to run. After completing the stages, the test was terminated using the Clip Studio. The next procedure was completing the Draining Triaxial Cell checklist. Results In this lab experiment, the moisture content were calculated as shown in table 1 Table 1: Moisture content Container No. 1 2 3 4 Mass of wet soil + container (m2) g 75.4 48.2 N/A N/A Mass of dry soil + container (m3) g 63.2 42.0 N/A N/A Mass container (m1) g 5.2 5.4 N/A N/A Mass of moisture

Inventory management in The Tate and Lyle Sugar Company Essay

Inventory management in The Tate and Lyle Sugar Company - Essay Example There are also inventories for goods that are yet to be completely processed or semi-finished goods by different departments of the firm. In addition, Tate and Lyle hold finished good inventories at distribution centers, plant sites and stores to avoid process stoppages. The other important components of inventory for Tate and Lyle are raw materials and finished goods in transit in different locations, away from the firm’s premises. However, whether these inventories are under the jurisdiction of Tate and Lyle depends on the ownership of an inventory at a given time. That is, Tate and Lyle or its dealers/partners may own a finished goods inventory before it reaches the market and end consumers. The other type of inventory important for Tate and Lyle is a spare part inventory, for spare parts used in servicing its sugar production processes. Generally, Tate and Lyle categorises its inventories based on their functions as input, process and output inventories. Under its input in ventories are raw materials, consumables for processing such as fuel, stationary, bolts, and nuts. Others are maintenance items/consumables, packing materials and local purchased items required for production (Twede, 2005). Among process inventories are semi finished production in various stages in different departments such as production, marketing, quality assurance, packing and packaging. In addition, production wastes and scrap, rejections and defectives also form part of the firm’s process inventories (Napolitano, 2003). Tate and Lyle’s output inventories cover finished goods, finished goods in transit, spare parts stocks and bought out items, repaired stock and parts, finished goods with dealers, defectives, rejects and sales returns, sales promotion and sample... This paper aims to establish the economic reasons, for which manufacturing and production firms such as Tate and Lyle and Silvertown still use various types of warehouses, despite the assertion by many theorists that inventory holding is a practice that should be minimised. it is imperative that every business ensures that its inventory is performing optimally at all times, cognizant of the fact that such practices ensure it avoids over or under inventory, which would affect the financial standings of any firm. Because inventory is a dynamic business aspect, it is essential that firms constantly evaluate, monitor, review and plan the internal and external factors of inventory management. In many businesses, inventory management functions are assigned to separate and specific departments made up of personnel competent in inventory control, monitoring, and reviewing inventories. Importantly inventory departments ensure healthy relationship and interface between inventory and procurement, production and finance departments For processing firms such as Tate and Lyle Sugar Company, Inventories refer to all the physical stock that is idle but has economic value. These stocks may be in various forms waiting processing, packing, transformation, use or future sale Inventory management and practices are thus necessary for Tate and Lyle, which is involved in sugar production, trading, sale and service of products. Tate and Lyle hold inventories for speculative purposes, functional purposes and for physical necessities.