Determining the Plastic Limit and Plasticity Index of Soil (Referenced Document: ASTM D 4318) OBJECTIVE: To determine the plastic limit and plasticity index of soil. APPARATUS AND SUPPLIES Evaporating dish Spatula Ground-glass plate—at least 30 cm (12 in.) square by 1 cm (3⁄8 in.) thick for mixing soil and rolling plastic limit threads Balance (with accuracy to 0.01 g) Containers Oven PREPARATION OF TEST SPECIMEN Select a 20-g portion of soil from the material prepared for the liquid limit
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Examine some of the ways in which Marxists explain crime. (12 marks) Ttraditional Marxists see crime as inevitable in capitalist society because it breeds poverty‚ ccompetition and greed. All classes commit crime‚ but because the ruling class control the state‚ they make and enforce laws in their own interests‚ criminalising the working class while escaping punishment for their corporate crimes. Traditional Marxism is criticised for ignoring non-class inequalities that affect crime and for determinism
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Erosion caused by waves can be as subtle as the gentle wave constantly hitting the shoreline‚ or it can be a violent interaction between lake Michigan or inland lakes and the earth around them during ever during severe storms. In Michigan‚ there are primarily two types of material found on the shoreline. Bedrock‚ which is the harder of the two‚ known a consolidated substance and the effects of the water cause less erosion. Then there are the items like sand and clay‚ which are move and
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dead plants which have accumulated under water for tens to thousands of year. Decomposition or humification involves the loss of organic matter either in gas or in solution‚ the disappearance of physical structure and the change in chemical state. Peat is generally found in thick layers in limited areas‚ has low shear strength and high compressive deformation which often results in difficulties when construction work is undertaken on the deposit. Peat represents the extreme form of soft soil. It is an
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TYPES OF SOIL TYPE OF SOIL FORMATION CHEMICAL COMPOSITION AREAS CROPS ALLUVIAL SOIL They are because of deposition of silt brought down by rivers Rich in minerals such as potash‚ phosphoric acid and lime. These soils also extend in Rajasthan and Gujarat. Found in the deltas of Mahanadi‚ Kaveri‚ Krishna‚ Godavari rivers hence are called deltaic soil. Wheat Types of alluvial soil :khaddar ‚banger Coarse soils are common in Chos‚ Duars and Terai BLACK SOIL Formed by weathering of solidifying
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Soil Mechanics Soil is the most misunderstood term in the field. The problem arises in the reasons for which different groups or professions study soils. Soil scientists are interested in soils as a medium for plant growth. So soil scientists focus on the organic rich part of the soils horizon and refer to the sediments below the weathered zone as parent material. Classification is based on physical‚ chemical‚ and biological properties that can be observed and measured. Soils engineers think
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production – scope and importance. Climate is of fundamental importance in the development of fruit cluster. Fruit has been a major food for mankind from time immemorial. Primitive man‚ the food habit was based mainly on fruits and also tubers which were found wild in the forests. In fact Adam who is considered to be the progenitor of man was said to have temptingly given the apple. In Ramanaya and Mahabaratha the cultivation and consumption of fruits were described. Tamil literature - Mukkanigal
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Title L6 – Soil Permeability – Constant Head Test Introduction Permeability is measured in term of water flow through the soil in a given time. The soil permeability is a very important factor to study the behavior of soil in its natural condition with respect to water flow. The size of pore space and interconnectivity of the spaces help determine permeability‚ so shape and arrangement of grains play a role. Often the term hydraulic conductivity is used when discussing groundwater properties
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Soil formation‚ or pedogenesis‚ is the combined effect of physical‚ chemical‚ biological and anthropogenic processes on soil parent material. Soil is said to be formed when organic matter has accumulated and colloids washed downward‚ leaving deposits of clay‚ humus‚ iron oxide‚ carbonate‚ and gypsum. As a result‚ horizons form in the soil profile. These constituents are moved (translocated) from one level to another by water and animal activity. The alteration and movement of materials within a soil
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Explore the ways in which Paul D’s Struggle with identity as a free man is presented in ‘Beloved’? In the highly acclaimed novel ‘Beloved’ by Toni Morrison‚ there are a range of themes that she explores throughout the novel‚ but the most predominant theme is the effects of slavery on the identity of the major characters. In this case Paul D. Throughout the novel‚ Paul D struggles to identify himself as society’s ideal man due to the terrible things that he had to endure while at Sweet Home. Morrison
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