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Solva Limekilns
The Solva limekilns are a row of disused limekilns in the harbour of the village of Solva, Pembrokeshire, Wales. The kilns have a Grade II heritage listing. Description The row of four linked limekilns is located on the south side of the harbour above the high water line at the base of the Gribyn headland. The kilns are built from rubble stone and include the foundation outline of a watchman's hut. The kilns are circular, with wall thickness ranging from . Each kiln has (or had) a circular hole at the top, approximately across, and entrance holes at the base. There are straight sections of wall linking the row of kilns. History There were originally twelve limekilns in Solva and the burning of limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ... was one of the main indust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solfach - Kilns
Solva ( cy, Solfach) is a village, community and electoral ward in Pembrokeshire, Wales. The village comprises principally Lower Solva and Upper Solva. The community also includes Middle Mill and Whitchurch. Location Solva lies on the north side of St Bride's Bay, in North Pembrokeshire in the Pembrokeshire Coast National Park and on the Pembrokeshire Coast Path. It lies on a deep valley at the mouth of the River Solva. In the valley is Lower Solva, consisting of a long street ending at the small harbour. Most of the modern development has been in Upper Solva, on the cliff top to the west of the harbour. History The rocks at the entrance to Solva Harbour made it one of the most sheltered anchorages between Fishguard and Milford Haven; it was marked on a 1578 parish map of Pembrokeshire as ''Dolvath Haven''. On a 1748 map it is named ''Solvach''. Solva became the main trading centre of St Bride's Bay in the medieval period, and was important for lime burning. A pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limekiln
A lime kiln is a kiln used for the calcination of limestone ( calcium carbonate) to produce the form of lime called quicklime (calcium oxide). The chemical equation for this reaction is : CaCO3 + heat → CaO + CO2 This reaction can take place at anywhere above 840 °C (1544 °F), but is generally considered to occur at 900 °C(1655 °F) (at which temperature the partial pressure of CO2 is 1 atmosphere), but a temperature around 1000 °C (1832 °F) (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. Early lime use Because it is so readily made by heating limestone, lime must have been known from the earlies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solva
Solva ( cy, Solfach) is a village, community and electoral ward in Pembrokeshire, Wales. The village comprises principally Lower Solva and Upper Solva. The community also includes Middle Mill and Whitchurch. Location Solva lies on the north side of St Bride's Bay, in North Pembrokeshire in the Pembrokeshire Coast National Park and on the Pembrokeshire Coast Path. It lies on a deep valley at the mouth of the River Solva. In the valley is Lower Solva, consisting of a long street ending at the small harbour. Most of the modern development has been in Upper Solva, on the cliff top to the west of the harbour. History The rocks at the entrance to Solva Harbour made it one of the most sheltered anchorages between Fishguard and Milford Haven; it was marked on a 1578 parish map of Pembrokeshire as ''Dolvath Haven''. On a 1748 map it is named ''Solvach''. Solva became the main trading centre of St Bride's Bay in the medieval period, and was important for lime burning. A prominen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pembrokeshire
Pembrokeshire ( ; cy, Sir Benfro ) is a Local government in Wales#Principal areas, county in the South West Wales, south-west of Wales. It is bordered by Carmarthenshire to the east, Ceredigion to the northeast, and the rest by sea. The county is home to Pembrokeshire Coast National Park. The Park occupies more than a third of the area of the county and includes the Preseli Hills in the north as well as the Pembrokeshire Coast Path. Historically, mining and fishing were important activities, while industry nowadays is focused on agriculture (86 per cent of land use), oil and gas, and tourism; Pembrokeshire's beaches have won many awards. The county has a diverse geography with a wide range of geological features, habitats and wildlife. Its prehistory and modern history have been extensively studied, from tribal occupation, through Roman times, to Welsh, Irish, Norman, English, Scandinavian and Flemish influences. Pembrokeshire County Council's headquarters are in the county ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wales
Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in 2021 of 3,107,500 and has a total area of . Wales has over of coastline and is largely mountainous with its higher peaks in the north and central areas, including Snowdon (), its highest summit. The country lies within the Temperateness, north temperate zone and has a changeable, maritime climate. The capital and largest city is Cardiff. Welsh national identity emerged among the Celtic Britons after the Roman withdrawal from Britain in the 5th century, and Wales was formed as a Kingdom of Wales, kingdom under Gruffydd ap Llywelyn in 1055. Wales is regarded as one of the Celtic nations. The Conquest of Wales by Edward I, conquest of Wales by Edward I of England was completed by 1283, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listed Building
In the United Kingdom, a listed building or listed structure is one that has been placed on one of the four statutory lists maintained by Historic England in England, Historic Environment Scotland in Scotland, in Wales, and the Northern Ireland Environment Agency in Northern Ireland. The term has also been used in the Republic of Ireland, where buildings are protected under the Planning and Development Act 2000. The statutory term in Ireland is " protected structure". A listed building may not be demolished, extended, or altered without special permission from the local planning authority, which typically consults the relevant central government agency, particularly for significant alterations to the more notable listed buildings. In England and Wales, a national amenity society must be notified of any work to a listed building which involves any element of demolition. Exemption from secular listed building control is provided for some buildings in current use for worship, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubble Masonry
Rubble stone is rough, uneven building stone not laid in regular courses. It may fill the core of a wall which is faced with unit masonry such as brick or ashlar. Analogously, some medieval cathedral walls are outer shells of ashlar with an inner backfill of mortarless rubble and dirt. Square Rubble Masonry Square Rubble Masonry is where face stones are dressed (squared on all joints and beds) before laying, set in mortar and appear as the outer surface of a wall. History The sack masonry is born as an evolution of embankment covered with boards, stones or bricks. The coating was used to give the embankment greater strength and make it more difficult for the enemies to climb. The Sadd el-Khafara dam, 14 meters high and built in sacking masonry in Wadi Al-Garawi near Helwan in Egypt, dates back to 2900 - 2600 BC The Greeks called the brickwork emplecton and made use of it in particular in the construction of the defensive walls of their poleis. The Romans made extensive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade II Listed Buildings In Pembrokeshire
Grade most commonly refers to: * Grade (education), a measurement of a student's performance * Grade, the number of the year a student has reached in a given educational stage * Grade (slope), the steepness of a slope Grade or grading may also refer to: Music * Grade (music), a formally assessed level of profiency in a musical instrument * Grade (band), punk rock band * Grades (producer), British electronic dance music producer and DJ Science and technology Biology and medicine * Grading (tumors), a measure of the aggressiveness of a tumor in medicine * The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach * Evolutionary grade, a paraphyletic group of organisms Geology * Graded bedding, a description of the variation in grain size through a bed in a sedimentary rock * Metamorphic grade, an indicatation of the degree of metamorphism of rocks * Ore grade, a measure that describes the concentration of a valuable natural material in the surroun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
