Limekiln
A lime kiln is a kiln used for the calcination of limestone (calcium carbonate) to produce the form of lime (material), lime called ''quicklime'' (calcium oxide). The chemical equation for this chemical reaction, reaction is: Calcium carbonate, CaCO3 + heat → Calcium oxide, CaO + Carbon dioxide, CO2 This reaction can take place at anywhere above , but is generally considered to occur at (at which temperature the partial pressure of CO2 is 1 atmosphere (unit), atmosphere), but a temperature around (at which temperature the partial pressure of CO2 is 3.8 atmospheres) is usually used to make the reaction proceed quickly.Parkes, G.D. and Mellor, J.W. (1939). ''Mellor's Modern Inorganic Chemistry'' London: Longmans, Green and Co. Excessive temperature is avoided because it produces unreactive, "dead-burned" lime. Slaked lime (calcium hydroxide) can be formed by mixing quicklime with water. History Pre-pottery Neolithic In plaster, proto-pottery, and mortar Because it ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Annery Kiln
Annery kiln is a former limekiln of the estate of Annery, Monkleigh, Annery, in the parish of Monkleigh, North Devon. It is situated on the left bank of the River Torridge near Half-Penny Bridge, built in 1835,Scrutton, Sue, Lord Rolle's Canal, Great Torrington, 2006, p. 23. which connects the parishes of Monkleigh and Weare Giffard. Running by it today is A386 road from Bideford to Great Torrington. Weare Giffard is the start of the tidal section of the River Torridge, and thus the kiln was sited here to import by river raw materials for the kiln, the product of which was lime fertiliser for use on inland agricultural fields. The old lime kiln is thus situated between the River Torridge and the now filled-in Rolle Canal built ''circa'' 1827Minchinton, Walter (1974), ''Devon at work: Past and Present.'' Pub. David & Charles; Newton Abbot. . P. 82. and railway that ran formerly from Bideford to Torrington, opened in 1872 and closed in 1966. The old trackbed now forms a str ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Lime Plant, Wyoming
Lime most commonly refers to: * Lime (fruit), a green citrus fruit * Lime (material), inorganic materials containing calcium, usually calcium oxide or calcium hydroxide * Lime (color), a color between yellow and green Lime may also refer to: Botany * Australian lime, a species of ''Citrus'' native to Australia and Papua New Guinea * Key lime, a citrus hybrid with a spherical fruit * Persian lime, a citrus fruit species of hybrid origin * ''Tilia'', a genus of trees known in Britain as lime trees, lime-wood, basswood, or linden * Wild lime or ''Zanthoxylum fagara'', a green fruit native to the Americas Chemistry * Agricultural lime, a soil additive containing calcium carbonate and other ingredients * Birdlime, a sticky substance spread on branches to trap small birds * Calcium hydroxide, a.k.a. slaked lime, slack lime, limewater, pickling lime or hydrated lime ** Hydraulic lime, used to make lime mortar ** Limewater or calcium hydroxide, saturated calcium hydroxide solution * Cal ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Mortar (masonry)
Mortar is a workable paste which hardens to bind building blocks such as stones, bricks, and concrete masonry units, to fill and seal the irregular gaps between them, spread the weight of them evenly, and sometimes to add decorative colours or patterns to masonry walls. In its broadest sense, mortar includes pitch, asphalt, and soft clay, as those used between bricks, as well as cement mortar. The word "mortar" comes from the Old French word ''mortier'', "builder's mortar, plaster; bowl for mixing." (13c.). Cement mortar becomes hard when it cures, resulting in a rigid aggregate (composite) , aggregate structure; however, the mortar functions as a weaker component than the building blocks and serves as the sacrificial element in the masonry, because mortar is easier and less expensive to repair than the building blocks. Bricklayers typically make mortars using a mixture of sand, a binder, and water. The most common binder since the early 20th century is Portland cement, but ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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River Torridge
The River Torridge is a river in Devon in England; it rises near Meddon. The river describes a long loop through Devon farming country where its tributaries the Lew and Okement join before meeting the Taw at Appledore and flowing into the Bristol Channel. The river is spate dependent and often flows between wooded banks which can be steep. The Torridge local government district is named after the river. It was the home of Tarka the Otter in Henry Williamson's book. Route The river rises close to the border with Cornwall (north of the source of the River Tamar). Its two primary sources are Seckington Water, which rises near Baxworthy Cross, and Clifford Water, the longer of the two, which rises alongside the A39 at Higher Clovelly. These run south and join to form the Torridge at Huddisford. It then flows generally east, passing between East Putford and West Putford, and near Bradford it is joined by the River Waldon, then heads east past Black Torrington and Sheepwash. ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Rolle Canal
The Rolle Canal (or Torrington Canal) in north Devon, England, extends from its mouth into the River Torridge at Landcross, Devon, Landcross 6 miles southwards to the industrial mills and corn-mills at Town Mills, Rosemoor, Great TorringtonLost canals and Waterways of Britain ''Ronald Russell'' page 96 and beyond to Healand Docks and weir on the Torridge, where survive the ruins of Lord Rolle's limekilns, upstream of today's Rosemoor Garden. Town Mills were built by Lord Rolle and were powered by a stream which flowed past his seat of Stevenstone to the east of Great Torrington and also supplied water to the canal. Rosemoor and North and South Healand farms were part of Lord Rolle's Stevenstone estate on the east bank of the Torridge. Description The canal comprises a sea lock at Landcross, a 60-foot Canal inclined plane, inclined plane at Weare Giffard and an Navigable aqueduct, aqueduct of five arches over the River Torridge at Beam, Great Torrington, Beam.''Indu ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Great Torrington
Great Torrington (often abbreviated to Torrington, though the villages of Little Torrington and Black Torrington are situated in the same region) is a market town in Devon, England. Parts of it are sited on high ground with steep drops down to the River Torridge below, with the lower-lying parts of the town prone to occasional flooding. Torrington is in the centre of Tarka Country, a landscape captured by Henry Williamson in his novel ''Tarka the Otter'' in 1927. Great Torrington has one of the most active volunteering communities in the United Kingdom. In July 2019, Great Torrington was reported to be the healthiest place to live in Britain. Researchers from the University of Liverpool found that the area had low levels of pollution, good access to green space and health services, along with few retail outlets. History There were Iron Age and medieval castles and forts in Torrington, located on the Castle Hill, Torrington, Castle Hill. Great Torrington had strategic sign ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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England
England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It shares Anglo-Scottish border, a land border with Scotland to the north and England–Wales border, another land border with Wales to the west, and is otherwise surrounded by the North Sea to the east, the English Channel to the south, the Celtic Sea to the south-west, and the Irish Sea to the west. Continental Europe lies to the south-east, and Ireland to the west. At the 2021 United Kingdom census, 2021 census, the population was 56,490,048. London is both List of urban areas in the United Kingdom, the largest city and the Capital city, capital. The area now called England was first inhabited by modern humans during the Upper Paleolithic. It takes its name from the Angles (tribe), Angles, a Germanic peoples, Germanic tribe who settled du ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Devon
Devon ( ; historically also known as Devonshire , ) is a ceremonial county in South West England. It is bordered by the Bristol Channel to the north, Somerset and Dorset to the east, the English Channel to the south, and Cornwall to the west. The city of Plymouth is the largest settlement, and the city of Exeter is the county town. The county has an area of and a population of 1,194,166. The largest settlements after Plymouth (264,695) are the city of Exeter (130,709) and the Seaside resort, seaside resorts of Torquay and Paignton, which have a combined population of 115,410. They all are located along the south coast, which is the most populous part of the county; Barnstaple (31,275) and Tiverton, Devon, Tiverton (22,291) are the largest towns in the north and centre respectively. For local government purposes Devon comprises a non-metropolitan county, with eight districts, and the Unitary authorities of England, unitary authority areas of Plymouth City Council, Plymouth an ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Loss On Ignition
Loss on ignition (LOI) is a test used in inorganic analytical chemistry and soil science, particularly in the analysis of minerals and the chemical makeup of soil. It consists of strongly heating ( "igniting") a sample of the material at a specified temperature, allowing volatile substances to escape, until its mass ceases to change. This may be done in air or in some other reactive or inert atmosphere. The simple test typically consists of placing a few grams of the material in a tared, pre-ignited crucible and determining its mass, placing it in a temperature-controlled furnace for a set time, cooling it in a controlled (e.g., water-free, CO2-free) atmosphere, and re-determining the mass. The process may be repeated to show that the mass change is complete. A variant of the test in which mass change is continually monitored as the temperature changes is called thermogravimetry. Theory The loss on ignition is reported as part of an elemental or oxide analysis of a mineral. ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Tonne
The tonne ( or ; symbol: t) is a unit of mass equal to 1,000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton in the United States to distinguish it from the non-metric units of the short ton ( United States customary units) and the long ton ( British imperial units). It is equivalent to approximately 2,204.6 pounds, 1.102 short tons, and 0.984 long tons. The official SI unit is the megagram (Mg), a less common way to express the same amount. Symbol and abbreviations The BIPM symbol for the tonne is t, adopted at the same time as the unit in 1879.Table 6 . BIPM. Retrieved on 2011-07-10. Its use is also official for the metric ton in the United States, having been adopted by the United States [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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English Heritage
English Heritage (officially the English Heritage Trust) is a charity that manages over 400 historic monuments, buildings and places. These include prehistoric sites, a battlefield, medieval castles, Roman forts, historic industrial sites, Listed building, listed ruins, and architecturally notable English country houses. The charity states that it uses these properties to "bring the story of England to life for over 10 million people each year". Within its portfolio are Stonehenge, Dover Castle, Tintagel Castle, and the "best-preserved" parts of Hadrian's Wall. English Heritage also manages the London blue plaque scheme, which links influential historical figures to particular buildings. When originally formed in 1983, English Heritage was the operating name of an executive non-departmental public body of the Her Majesty's Government, British Government, officially titled the Historic Buildings and Monuments Commission for England, that ran the national system of heritage prot ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |