Jun 15, 2011
Di sɛntɛns we dia pas ɔl na stɛl fayba inkwyuizhɔ na "wi nid wan tan stɛl fayba". Tide aspek rεshכ, tεnsil strכng εn dכz dεn fiks, dεn nכ kכmpεr nכ kotεshכn.
Inquiries de kam evride we de rid: duya kot stɛl fayba, wi nid wan tan. I luk spesifik ɛn i nɔ pɔsibul fɔ prayz, bikɔs stɛl fayba nɔto prɔdak bɔt na famili fɔ prɔdak. Wan 0.2 mm kɔpa-plet maykro waya ɛn wan 0.75 mm kol-drɔ huk waya kin difrɛn tri tɛm pan prayz ɛn i kin jɔs ɔvalap insay aplikeshɔn. Put ɔl tu biɛn wan wɔd ɛn di faktri kin jɔs gɛs, ɛn di kɔst fɔ gɛs land na di sayt pas na di kot. Wan inkwyuiz we de wok nɔ se stɛl fayba spɔlayt Chaina; i se industrial flo, 150 mm slab, riples welded mesh, 25 kg/m3, ASTM A820 ripɔt nid. Di sɛkɔn wan kin gɛt ansa di sem de.
Aspek rεshכn na di lεngth we dεn divayd bay ikwal dayamita. i de disayd if di fayv kin grip di matris: tu lכw εn i de pul kכmכt wit kכlכsכl nכ frikshכn, tu hכy εn i de bכl we i de miks. Strukchɔral stɛl fayba nɔmal fɔ sidɔm bitwin 40 ɛn 80. Tɛnsil trɛnk na di sɛkɔn nɔmba: kol-drɔ lɔw-kabɔn waya de rɔn 800 to 1150 MPa we kɔpa-plet maykro waya de rich 2850 MPa. Dɛn tin ya nɔ gud ɛn bɛtɛ, dɛn na difrɛn wok dɛn, di fɔs wan fɔ mas strɔkchɔ, di sɛkɔn wan fɔ UHPC ɛn tin wɔl. Di doz na di tɔd wan, we dɛn gi as volyum frakshɔn ɔ kilogram fɔ wan kubik mita. 30 to 80 kg/m3 de kɔba strɔkchɔral kɔnkrit; 90 to 268 kg/m3 dɔn ɔlrɛdi bi UHPC teritɔri.
Bɔku tɛm, spɛsifikɛshɔn dɛn kin push aspek rɛsɛshɔn ɔp lɛk se di nɔmba nɔmɔ min pefɔmɛns. di opozit na tru: di hכy rεshכn, di mכr di fayv dεm de intafεr insay di miksa, εn pas wetin di matris εn agregεt kin akomoda dεn de fכm bכl dεm. Bɔl na sɔntin we nɔ fayn, nɔto fɔ mek pɔsin gɛt mɔ trɛnk. Praktis de put pɔmp ɛn sprɛy dɔŋ 60, prɛkas ɛn sɛlf-kɔmpakt miks na 65 to 70, ɛn ɛnitin we pas 80 nɔmɔ na ɔlta-hay pefɔmɛns matris usay di agrɛgat fayn ɛn di paste viskɔs fɔ mek di fayv dɛn separet. Aks aw dɛn go put di kɔnkrit bifo yu aks fɔ aspek rɛtɛshɔn.
Kol-drɔ lɔw-kabɔn waya fayba we de 800 to 1150 MPa de kam insay 0.55, 0.75 ɛn 1.0 mm dayamita, 30 to 60 mm lɔng, we dɛn huk na ɔl tu di ɛnd dɛn. I ikɔnomik, kɔnsistɛns ɛn i kɔmpitabl ɔlsay, frɔm ɔdinari kɔnkrit to RPC. Kכpa-plet maykro waya na 2850 MPa na כnli 0.2 mm in dayamita wit 6 to 20 mm lεngth εn aspek rεshכn 30 to 100; i de insay UHPC brij dɛk, tin prɛkas sɛkshɔn ɛn prɛsishɔn ɛlimɛnt dɛn. If yu yuz maykro waya na mas flo de west mɔni, ɛn kɔs waya jɔs nɔ go fit 30 mm wɔl. Di fɔs kwɛstyɔn we yu go pik na di tik we di sɛkshɔn tik ɛn di kɔva we klia, nɔto di trɛnk.
Doz na di nɔmba we dɛn kin lɛf vague pan kot. Strukchɔral kɔnkrit de yuz 30 to 80 kg/m3, lɛk 0.4% to 1.0% bay volyum; kכpa-plet maykro waya insay UHPC dεn rεkomεnd fכ 90 to 268 kg/m3, we pas tri tεm hכy. So wan tan fayv de kɔba 25 to 30 kubik mita flɔ kɔnkrit bɔt na 4 to 10 kubik mita nɔmɔ UHPC. Lɛf di doz aut ɛn di faktri kot di strɔkchɔral rɛnj, di yunit prays luk smɔl, ɛn di kɔst fɔ wan kubik mita fɔ kɔnkrit kwayɛt wan de dɛbul.
Wan inkwyuiz we gɛt ansa di sem de kin gɛt siks layn dɛn: aplikeshɔn (flɔ, shotkrit, prɛkas, rifraktɔri), sɛkshɔn tik ɛn klia kɔva, di spɛsifikɛd tɛnsiɛl ɛn flekshɔnal tafnɛs valyu, doz ɔ volyum frakshɔn, di standad we fɔ mit (ASTM A820 ɔ EN 14889-1), ɛn pak plus dɛstineshɔn pɔt. Ad wan layn fɔ no if dɛn nid fɔ gɛt CE diklareshɔn ɛn di faktri no if fɔ rɔn wan sɛtifiket batch. Wit dɛn siks layn dɛn de, kot dɛn kin kam togɛda frɔm tri tɛm spred to insay tɛn pasɛnt, bikɔs ɔlman de dɔn fɔ rid di sem pepa. Rayt di aplikeshɔn insay di pɔsin we bay in yon wɔd dɛn bak: stɛl fayba fɔ kɔnkrit riinfɔsmɛnt, fɔ industrial flooring, fɔ tanɛl shotkrit ɔ fɔ refractory layn. Wan fayv famili kin sav sɔm pan dɛn, bɔt di kot kin chenj wit di wɔd dɛn, ɛn na so bak di tɛst ripɔt we di faktri kin ataya to am.
Di fayl dɛn na wan spɛshal shit nɔ kin rili bi rɔng nɔmba, dɛn na misalign yunit dɛn. Wan Chaynish shit se di doz we na 25 kg/m3; wan Inglish-spik bayer konvayt na 1.685 en rid 42 lb/yd3, den riply wit di single nomba 42, en di faktri kot 42 kg/m3 bak. Di prayz de gro kwayɛt wan bay 68 pasɛnt. Tεnsil trεnk de kכri di sem trap: di fכktכ bitwin MPa εn ksi na 6.895, so 1150 MPa na bכt 167 ksi, εn wan misplεs dεsima de bi tεnfold mistek. Aspek rεshכn luk sef εn stil gεt difinishכn prכblεm, bikɔs di dεnominεt kin bi ikwal dayamita כ nominal dayamita; fɔ waya we gɛt huk i nɔ rili impɔtant, fɔ waya we dɛn dɔn insay ɛn wev i de muv di nɔmba bay 15 pasɛnt. Di robust fix na fɔ print ɔl tu di yunit sistem dɛn na di sheet ɛn stet di kɔnvɔshɔn faktɔ dɛn na di hεda. Net wet na di sɛkɔn dispyut we kin apin bak: if 25 kg katon na gros ɔ net shift ful kɔntena bay 400 kg. Di tɔd wan na di kɔnfyushɔn bitwin di doz ɛn di tin we de insay, usay di doz na kilogram we dɛn ad pan wan kubik mita kɔnkrit ɛn di tin we de insay na di volyum shea na di prodak we dɔn, tu figa dɛn we dɛn separet bay di density fɔ stɛl. Sɛtul dɛn kɔnvɛnshɔn ya na di fɔs imel ɛn ɛvri leta tɛknikal klarifyeshɔn nɔ de igen.
Wan tri-fol spred pan di sem nominal spɛsifikɛshɔn nɔ kin rili bi fɔ ful. Bɔku tɛm, na tri difrɛns dɛn we dɛn nɔ tɔk bɔt. Raw matirial: kol-drɔ lɔw-kabɔn waya versus ri-mɛlt skrap de gi difrɛn ɔda fɔ trɛnk kɔnsistɛns. Kכt: tru hot-dip kכpa vεrs kכsmεtik εlektroplεtin difrεnt tri to et tεm insay sכl spεray. Inspekshɔn: 28 in-layn chɛk versus shipmɛnt sampling na rial kɔst difrɛns. Rayt ɔl tri insay di inkwyuizhɔ, aks fɔ batch ripɔt wit di shipmɛnt, ɛn di spred go bi ɛksplen. Fɔ kɔmpia di aktual valyu dɛn, wok frɔm di mɔdel ɛn mɛzhɔ data tebul dɛn na di stɛl fayba prodak pej pas fɔ tred diskripshɔn dɛn bay imel.
Tɛl wi yu prɔjek sɛnɛriɔ ɛn wetin yu nid, ɛn wi go mach di rayt sɔlvishɔn ɛn gi wi kot insay 24 awa.
Gɛt wan Fri KɔtKɔpa-plet maykrowayr, kol drɔ huk ɛnd tayp, glu in row, grɔn tayp, 304 / 310S / 446 stenlɛs stiɛl ɛn mɛlt-drɔ ɔt-rɛsistant fayba, UHPC spɛshal sintetik fayba, dayamita 0.2 to 1.0 mm, lɔng 6 to 60 mm, tɛnsiɛl trɛnk 700 to 2850 MPa, kɔntinyu kכvεreshכn 0.5% to 2% volyum rεt εn 30 to 268 kg/m3. Dɛn kin ɔganayz di prodakshɔn akɔdin to ASTM A820 ɔ EN 14889-1 ɛn dɛn kin gi batch inspekshɔn ripɔt. Tri kayn pak dɛn de sɔpɔt: katon, tɔn bag ɛn bɔlk. Tred tɛm dɛn na opshɔnal EXW / FOB / CIF / DDP.
Lan bɔt stɛl fayba sɛlɛkshɔn ɛn kot →