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BRICK. By - Phuwanat Sangkhayanon 5310751259 - Preutipong Mongkolkijngam 5310755060. A brick is a block of caramic material used in masonry construction , usually laid using various kinds of mortar . Methods of manufacture Brick making at the beginning of the 20th century.
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BRICK By - PhuwanatSangkhayanon 5310751259 - PreutipongMongkolkijngam 5310755060
Abrickis a blockofcaramicmaterialusedinmasonryconstruction, usuallylaidusingvariouskindsofmortar.
Methodsofmanufacture • Brickmakingatthebeginningofthe 20th century. • Madefromclay, shale, softslate, calciumsilicate, concrete, orshapedfromquarriedstone.Clayisthemostcommonmaterial, withmodernclaybricksformedinoneofthreeprocesses - softmud, drypress, orextruded. • ingredients: • Silica (sand) - 50% to 60% byweight • Alumina (clay) - 20% to 30% byweight • Lime - 2 to 5% byweight • Ironoxide - 5 to 6% (notgreaterthan 7%) byweight • Magnesia - lessthan 1% byweight
SolfMudbricks • - SoftMudMethodisthemostcommon. • RawClay+ 25-30% Sand+ Water • Theshapedclayisthenfired ("burned“) • at 900-1000 °C • to achieve it’s strength,But in • modern brickworks, this is • usually done in a continuously • fired tunnel kiln.
Drypressedbricks • Similartomudbrickbutstartswith a muchthickerclay. • It formsmoreaccurate, sharper-edgedbricks. • Greaterforceinpressingandthelongerburn • Makethismethodmoreexpensive
Extrudedbricks • Claywith 10-15% water (stiffextrusion) or 20-25% water (softextrusion). • Moststructuralbricksaremadebythismethod, asitproduceshard, densebricks. • - Hollowinbricksarelighterandeasiertohandle, • andhavethermalpropertiesdifferentfromsolidbricks. • Cutbricksarehardenedbydryingfor 20 to 40 hoursat 50 to 150 °C
Application • Bricks have been usedforbuildingandpavement for centuries. Untilrecently, almostallhouseswerebuiltalmostentirelyfrombricks. • Althoughmanyhousesarenowbuiltusing a mixtureofconcreteblocksandothermaterials, manyhousesareskinnedwith a layerofbricksontheoutsideforaestheticappeal.
Characteristic Of Good Brick • - GoodThermalShockResistance • - Refractoriness UnderLoad • - HighMeltingPoint • - SatisfactoryPorosity.
References http://en.wikipedia.org/wiki/Brick http://www.thailand-world.com/Ang-Thong-Brick.html