How To Use Compaction In A Sentence
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Results show that degree of compaction, compaction water content and saturation state of compacted soil have influence on cohesion and angle of friction of clay, thereby on the shear strength of clay.
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Unsustainable land-use practices can lead to, or exacerbate, various forms of land degradation including wind and soil erosion, soil compaction, waterlogging, salinization and nutrient depletion.
Regional scenarios for Africa's future~ land
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Rocks in intermediate-burial settings experience chemical compaction as well as subsurface cementation and dissolution.
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Prep your lawn - At the beginning of the season, aerate and dethatch your lawn to relieve soil compaction and remove excess thatch.
Baltiblogs
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This could result from the compaction of curved or partially enrolled individuals, or possibly peri-mortem or post-mortem muscle contraction.
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We found that most samples exhibited little or no compaction or distortion from pith to bark along the major axis.
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Bubbles form in compacted glacial ice because the was air between the snow crystals that was trapped during compaction.
Man made global warming? No way!
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The heart with noncompaction can be dilated with decreased pumping function as in dilated cardiomyopathy (see above) or can have normal pumping function.
Cardiomyopathy
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You can reduce this ground compaction and add air to the soil by aerating your entire lawn.
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I thought while looking at this outcrop the last time I stopped, that there might be some faulting or shearing between the whitish layer and the upper, densest part of the welded tuff the reddish gray, bouldery, hard-looking stuff with possible shearing taken up in part in the brighter reddish zone, in which you can still see some compaction foliation.
Geology on the Road: Highway 50 #1
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Cement is an expensive material, which provides a strong incentive for the contractor to "economize" in its use, with mutual distribution of the resulting "savings" Providing water for curing concrete, plaster, or mortar in brickwork, or for moisture control in embankment compaction, can also be a costly item for the contractor, who may have an incentive to reduce or eliminate its use, often with the collaboration of the inspector who may be under considerable pressure to cooperate.
Chapter 13
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Compaction is a key index in controlling roadbed intensity and stability during the roadbed construction.
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Continued compaction by overburden then converts lignite into bituminous coal and finally, anthracite coal.
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Soil compaction is common in civil engineering practice mainly in highway and rail road works, run ways, earth dams, sanitary landfills and backfilling of excavations for substructures and retaining walls.
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Pollution is rife and unsustainable land-use practices lead to various forms of land degradation, including wind and soil erosion, soil compaction, waterlogging, salinization, and nutrient depletion.
Regional scenarios for Africa's future~ land
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Severe compaction sometimes occurs when the spoil or topsoil material is moved when too wet during the reclamation process.
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In most basins sands that can be fluidized are interbedded with ‘leaky’ shales of high permeability (for shales) that do not sustain high overpressure during normal compaction.
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Owing to compactional processes, the more vertical burrow parts may be stacked into each other and commonly are affected by stylolites.
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At low compaction water contents, shrinkage decreases with increasing compactive effort.
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Compaction of backfill materials is normally carried out by mechanical means, to achieve a specified percentage of compactivity.
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The compaction of amalgam into the cavity is not simply a matter of filling the hole.
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The contractor sets the screed rails or side forms, often shimming them during strike-off 1/2 to 3/4 inch higher than the final surface elevation to allow for compaction later with rollers.
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However, this involves compaction and an elision; the self processes memory selectively.
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Compaction reduces the permeability of the soil and increases its shear strength and bearing capacity.
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This compaction subsequently increases the risk of surface run-off of nutrients from fertiliser and slurry
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To ensure subgrade compaction, we must resolve the choice of subgrade soil, moisture control, shop soil thickness control and detection of degree of compaction work.
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As compaction begins, the sensor transmits voltage based on the pressure wave amplitude of the compaction process.
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Immediately after placement in the formwork until achievement of its inherent stability, the concrete mix, under the effect of its own load and of compaction by vibration, exerts lateral pressure on the formwork which is called lateral pressure of the concrete mix.
2. Functional and Load Requirements of Formwork
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Gasoline or diesel engines drive an eccentric weight at a high speed to develop compaction force and vibrations that compact granular soils.
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In the Australian examples this is due to gilgai, in the Sudanese example to differential compaction of the soil on weathering.
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The larger contact area of the baseplate transmits more vibration to the surface producing (deeper soil lifts and) more effective compaction.
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A more advanced level could include compaction mapping, remote sensing, and field scouting.
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Chemical compaction generally is detrimental to reservoir rock characteristics and/or petroleum production.
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Two versions of this compaction tool are available: a smooth drum for sand, gravel, pea rock, and asphalt patching and a padded drum for heavy soils, clay, and clay-based backfill.
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This remarkable compaction can be reproduced in vitro by adding a small amount of condensing agent, such as polyamines, multivalent metal cations, cationic surfactants, or neutral polymers to a DNA solution.
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Soil compaction causes farmers a lot of problems by preventing moisture from seeping down to plant roots and by increasing water runoff and wind erosion.
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Rainfall erosivity is the result of the kinetic energy in raindrops striking the soil; the amount of kinetic energy increases with rainfall intensity; it leads to soil compaction and demolition of aggregates.
2.1. Factors in rainfall erosion
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The land is sinking, due to isostacy and the compaction of sediments, much faster than the sea is rising, because rivers are now embanked and not allowed to deposit new sediment on the flood plains.
Telegraph.co.uk: news, business, sport, the Daily Telegraph newspaper, Sunday Telegraph
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It also requires adequate, trash-free backfill and sufficient soil moisture for compaction, as well as site conditions enabling a trencher to maneuver.
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Due to the single output, the best compaction ratio can Awl - compactor.
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Removal of water from compressible materials such as silt and clay can lead to compaction of the confining unit and subsidence of the land surface.
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There should be a clean section, a uniform base, the material pumped in with binder, a road roller run over it for compaction and a smooth pavement at the end of the repair.
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This could result from the compaction of curved or partially enrolled individuals, or possibly peri-mortem or post-mortem muscle contraction.
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By causing soil particles to flocculate - bunch together - some chemicals improve the soil structure in order to combat the effects of compaction.
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In the case of the Kendrick Formation, however, the system was closed by early compaction of surrounding clays, and diagenesis apparently occurred in a marine phreatic environment.
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Physical compaction is intermediate between these two groups.
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Noncompaction cardiomyopathy is characterized by a spongy appearance of the heart muscle on echocardiography.
Cardiomyopathy
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As a result of the shaly or micritic nature of these formations the decompaction estimates are likely to be minimum estimates, suggesting that subsidence could in fact be considerably greater.
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The effectiveness of this compactional pump diminished over time as void space in the peat gradually collapsed.
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Compaction in sands proceeds by eliminating porosity by mechanical and chemical processes, and then by pressure dissolution.
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In addition, it also resists compaction and promotes decrepitation of the alloy.
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Also site prep, that is, excavation and compaction to receive foundations.
THE VENDETTA DEFENCE
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The compaction foliation and jointing in the red-gray and reddish ash-flow tuff to the right is roughly parallel to jointing in the granitic rock on the left, and roughly parallel to the contact.
Geology on the Road: Highway 50 #1
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Diagnosis of left - ventricular non - compaction in patients with left - ventricular systolic dysfunction a reappraisal of diagnostic criteria?
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Compaction reduces the permeability of the soil and increases its shear strength and bearing capacity.
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Determine Degree of Compaction: Foot-worn areas, rapid browning in dry weather, slow drainage, and waterlogging after rain or watering are signs of soil compaction.
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The membrane formed being elastically deformable and substantially impermeable for functioning as a vacuum bag in Vacuum Assisted Resin Transfer Molding, debulking, compaction, or similar processes.
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Generally, surface compaction only affects one crop year if the field is plowed before the next crop.
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The soil mixtures, with and without additives, were thoroughly mixed with various moisture contents and allowed to equilibrate for 24 hours prior to compaction.
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The quick deposition of these sediments resulted in clay compaction and the isolation of porous and permeable sand with impermeable shales.
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The simplest way to see if your soil has a hardpan or compaction layer below the surface is to take a metal rod and walk around your property sticking it into the ground.
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Four main salts are used: sodium chloride: flocculent and aid to compaction; effective in non-saline soils; calcium chloride: impermeabilizing agent; ferric chloride: powerful coagulant and flocculant; aluminium chloride: electrolytic coagulant, electrochemical consolidation of soil.
Chapter 11
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Birds such as starlings, blackbirds, thrushes and dunnocks will use a lawn to hunt for worms and insects, so maintain good drainage and limit compaction to help them probe in its surface.
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Generally, surface compaction only affects one crop year if the field is plowed before the next crop.
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Rocks in intermediate-burial settings experience chemical compaction as well as subsurface cementation and dissolution.
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This can be due to increasing confining pressure (mechanical compaction), tectonic stress in impervious sediments or hydrothermal activity.
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It also implies, but does not explicitly require, important installation details, such as complete backfilling of the trench and thorough compaction of backfill.
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The Compaction Detector is a soil penetrometer cone and shaft pushed by a hydraulic cylinder, rather than by hand, into the ground.
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Further compaction causes opacities to develop within the lens - cataract formation.
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It also requires adequate, trash-free backfill and sufficient soil moisture for compaction, as well as site conditions enabling a trencher to maneuver.
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Analysis of petrophysical properties measured on horizontal profiles across a normal fault indicated horizontal compactional strain and layer-parallel shortening associated with faulting.
