UK Slate Limited

Transcription

1 Commrcia documnt issud by: EN :2004 CTP Laboratorio Location of th min quarry: UK Sat Limitd Cantra D Cunas, La Cabrra, Lon Dat of samping: May 2015 Dat of tsting: Jun 2015 This documnt rcords th conformity of th product dscribd bow and is incompt without th xpanation of th maning of th tst rsuts and th rquirmnts of EN :2004. th tsts rfrrd to and th critria can b found in EN :2004 Product dscription and commrcia nam Lvnda Bu Back Conformity 1. Dimnsiona torancs Format 320x220mm 5-7mm Dviation from dcard ngth +/- 5mm Ys Dviation from dcard width +/- 5mm Ys Dviation from dcard squarnss +/- 1% Ys Dviation from straightnss of dgs +/- 5mm Ys Sat typ for dviation from fatnss Vry Smooth Smooth Norma Txturd Dviation from fatnss <1.5% 2. Thicknss Sat typ for packd thicknss cacuation V.Smooth Smooth Norma Txturd Nomina thicknss and variation +/- 35% Ys 3. Strngth Charactristic Mo Transvrs 37.8mpa Longitudina 44mpa Ys Man faiur oad Transvrs 49.4mpa Longitudina 54.8mpa Ys 4. Watr absorption A1 0.42% Ys 5. Frz thaw N 6. Thrma cyc tst T1 Ys 7. Carbonat contnt 0.6% Ys 8. Suphur dioxid Exposur tsts 20% carbonat S1 Ys >20% carbonat 9. Non-carbonat carbon contnt 0.4% Ys 10. Extrna fir xposur Dmd to satisfy Ys 11. action to fir Dmd to satisfy cass A1 Ys 12. as of dangrous substancs Non in conditions of us as roofing or xtrna cadding Ys

2 Dat of samping and tsting Product dscription 1. Dimnsiona Torancs Lngth and width Dviation from squar nss Dviation from straightnss of dgs Fatnss: Th imits of dviation from fatnss is dfind for four typs of sat. Th bvd dgs sha b appid to th convx fac. Sats with dviation from fatnss in xcss of th imit may b usd for spcia appications 2. Thicknss 3. Strngth t x x If mor than on dat is appicab to samping or tsting thy shoud b indicatd against th individua tst rsuts Sat for roofing and xtrna cadding or carbonat sat for roofing and xtrna cadding Maximum dviation ± 5mm Maximum dviation 1% of th ngth Sat ngth 500mm Prmittd dviation 5mm Sat ngth >500mm Prmittd dviation 1% of th ngth Sat typ Vry smooth Smooth Norma Txturd Th basic nomina thicknss is dtrmind as a function of th bnding strngth using th quations givn in 3, oca cimat conditions and traditiona construction tchniqus. Th basic nomina thicknss is incrasd in ration to th sat s prformanc in th appropriat sufur dioxid tst (if rquird) as shown in 7 and 8 bow. Longitudina and transvrs bnding strngth and moduus of ruptur; thr is no imit for bnding strngth or moduus. Howvr th basic nomina thicknss is dtrmind as a function of th bnd strngth using th c b quations givn bow, oca cimat conditions and tradition construction tchniqus. Whr is th ongitudina thicknss in miimtrs(mm) t is th transvrs thicknss, in miimtrs (mm) ct b ct c is th ngth of sat, in miimtrs (mm) is th width of th sat, in miimtrs(mm) is th charactristic transvrs moduus of ruptur in mgapascas (MPa) is th charactristic ongitudina moduus of ruptur in mgapascas (Mpa) Nationa factor x Country Transvrs Longitudina Country Transvrs Longitudina Bgium Itay Franc Spain Grmany UK Thos countris that hav not dcard a nationa vau shoud sct a vau or a pair of vaus in ration to thir countris cimat and traditiona construction tchniqus. It shoud not b ss than th minimum vau or pair of vaus givn abov. and t ar dtrmind by using th ngth/ and th width b of th sats. Th maximum vau dtrmind is th basic individua thicknss of th sat bi. Th basic individua thicknss is incrasd in ration to th sats prformanc in th appropriat sufur dioxid tst as shown in 7 and 8 bow. For a significant diffrnc btwn th ongitudina and transvrs moduus of ruptur th t-statistic is gratr than UK Sat Limitd

3 4. Watr absorption Th watr absorption of sats sha not xcd 0.6% unss thy can satisfy th rquirmnts of th fr-thaw tst. Sats with a watr absorption gratr than 0.6% sha show no significant rduction in bnding 5. Frz-thaw tst strngth using a on-sidd Studnt s t-tst at th 2.5% significant v (sats with a watr absorption of 0.6% or ss ar not rquird to undrgo a frz-thaw tst) 6. Thrma cyc tst: Th foowing tab xpains th maning of th tst cods: Cod Obsrvation in th tst Conformity to th standard T1 No changs in apparanc. Surfac oxidation of mtaic minras. Coor changs that nithr affct th structur nor form runs of discooration. Accptab T2 Oxidation or apparanc changs of th mtaic incusions with runs of discooration but without structura changs. Accptab T3 Oxidation or apparanc changs of mtaic minras which pntrat th sat and risk th formation of hos. Accptab subjct to th not bow Not: Sats within cod T3, which potntiay may rsut in watr pntration shoud ony b usd sctivy with suitab mthods of construction that avoid such pntration. Sats showing xfoiation spitting or othr structura changs in this tst ar not accptab. 7. Carbonat contnt. Thr is no imit on carbonat contnt. Howvr, th carbonat contnt dtrmins which sufur dioxid xposur tst procdur shoud b carrid out and, togthr with th strngth, th minimum nomina thicknss of th product. If th carbonat contnt is ss than 20% thn th sufur dioxid xposur tst procdur in EN :2000, 15.1, appis. If th carbonat contnt is 20% or mor, th sufur dioxid xposur tsts procdur in EN :2000, 15.2 appy. Th minimum thicknss is cacuatd using th tab bow. 8. Minima nomina thicknss in ration to carbonat contnt and sufur dioxid xposur cod. SO 2 Carbonat contnt % xposur tst cod from EN :2000, >5.0 <20.0 S1 S2 S3 S1 S2 S3 Dpth of softnd ayr from EN :2000, mm bi bi is th basic individua thicknss obtaind from 3 abov in miimtrs t is th thicknss of th softnd ayr obtaind from EN :2000, 15.2 in miimtrs 9. Non-carbonat carbon contnt: Th non-carbonat contnt sha b ss than 2% Thicknss adjustmnt Non bi +5% bi 8.0 mm or switch to th tst in EN :2000, 15.2 bi +5% bi +10% bi 8.0mm or switch to th tst in EN :2000, mm + 7t UK Sat Limitd

4 BS EN :2004 Tsting Expaind BS EN :2004 is th nw Europan standard for sat and ston products for discontinus roofing or cadding. This rpacs th od BS 680-2:1971. Foowing is a brif xpanation, xpaining th tsts and standards our sat rachs in ordr to conform to th nw standard. 1. Dimnsions Torancs ar providd for th ngth, width, individua thicknss, fatnss, rctanguarity and dg dviation, of th sat bing tstd. Th packd thicknss for 100 sats must b cacuatd for vry pat to aow for th cacuation of th avrag roofing sat thicknss, with a rduction appid on th surfac finish. 2. Fxura Strngth Th sat tst samps ar supportd on two bars and a third cntra bar is pushd down on th sat unti faiur occurs. Th tst is carrid out both para and prpndicuar to th ong dg of th roofing sat. From th rsuts gaind a charactristic moduus of ruptur is cacuatd (basicay a ratio) and th argr of th two vaus is usd for cacuating th minimum individua thicknss of th roofing sat. 4. Watr Absorption Th sat is drid to a constant wight; it is thn immrsd in watr. Th absorption prcntag is dtrmind via th diffrnc in mass. If th vau obtaind is ss than 0.6%, th sat is cassd as A1, whras, if it is abov 0.6% it is cassd A2. 5. Frz-Thaw Tst This tst is ony rquird on A2 cassd sats. Th sat is submittd to 100 cycs of frzing in air, foowd by thawing in watr, onc this is compt th fxura strngth tst is rpatd. If thr is a significant chang in rsuts, th sat is dmd not suitab and dos not pass th Europan standard. Non-Carbonat Contnt This tst vrifis th amount of graphit prsnt in th sat, as w as ois and othr organic mattr. If th sat contains in xcss of 2% graphit, it fais th tst and dos not pass th Europan standard. Carbonat Contnt Ths groups dtrmin th thicknss of th sat. Th groups aso dtrmin th mthod of suphur dioxid tsting, Suphur Dioxid Exposur For Sat With Lss Than 20% Carbonat Th sat is xposd to suphur dioxid at two diffrnt concntrations for a duration of 21 days. Dpnding upon changs during th tst, on of 3 cods wi b givn. Th cod is thn usd to appy a thicknss adjustmnt, dpnding on th carbonat contnt of th sat. UK Sat Limitd

5 Suphur Dioxid Exposur For Sats With Mor Than 20% Carbonat Th sat is subjctd to surfac scraping bfor and aftr xposur to suphur dioxid vapor. Aftr ach xposur thr is an incras in matria rmovd, this carris on unti th dpth of softning is rachd. A thicknss adjustmnt is thn appid to a sats, xcpt for in th cas whr th softnd ayr is gratr than 0.7mm. Thrma Cyc Tst Th sat is subjctd to 20 cycs of immrsion in watr immdiaty foowd by drying at 100 dgrs Csius, upon comption an inspction occurs for th prsnc of potntiay harmfu minra componnts: T1- for sat with coour changs that do not affct th structur and form runs of discooration. T2- for sats with coour runs that do not caus structura chang. T3- for sats whr hos may b formd from th oxidization of incusion. If xfoiation, spitting or othr structura changs occur, th roofing sat dos not pass th tst and is thrfor not up to Europan standard. Ptrographic Examination Googica appraisa that incuds optica microscopy, x-ray diffraction and scanning ctron microscopy. This xamination dtrmins th typ of roofing sat and wathr thr is any prsnc of harmfu or dangrous structurs or minras. UK Sat Limitd