Steel Fiber ñan Industrial Flooring: Slab Depth, Joints im Real Numbers

Bwebwenato

Juun 15, 2013

Kobaik steel fiber ñan juon industrial floor ejjab kōmmane bwe en ejelok an rup. Slab depth, joint spacing im forklift point loads rej jilu kalōk ko reoktak, im juon wōt iaer ej kin fiber eo.

Juon lal ejjab rup kinke ewōr fiber ie

Lal ko ilo jikin jerbal ko rej rup kin lalem un ko: an plastic rup, an rup ñe ej mōrā, an bwil, an rup im elap an rup. Steel fiber ej lukkun kōkōmanmanlok ruo ko moktata, ej jibañ eo kein kajilu jidik wōt, im ejjab kōmman jabdrewot ñan ruo ko eliktata. Ñe juon floor ej kwalok rup ko jilu allōñ elikin an kar likite, unin ej kin an jab jejjet subgrade compaction ak an lap joint spacing jen an jab jejjet dose eo. Kōmman bwe fiber en einwot juon men eo ej kōmman bwe en jab rup ej men eo elaptata an armij ro jinoe ñan juon floor eo ejjab jerbal. Naan eo ejimwe ej bwe fiber ej ukōt juon mōttan eo elap ñan elōn mōttan ko ilo bōran, kōtlok bwe slab eo en maroñ in jolok mōttan ko ilo jimwe jen an kajeoñ in jolok mōttan ko ikijen joñan wōt.

Wāween ko ñan etal jen 200 ñan 150 mm

Juon floor eo ejjab kajoor ej bōk maroñ in an mōkaj jen an mōrā; ilo fiber, maroñ ej itok jen mōttan eo koba ippān kajoor in mōttan eo elikin an rup. Thinning ej maroñ in walok ak ej aikuj jilu men ko ilo juon ien: juon modulus eo eutiej im jimwe an subgrade reaction, eddo ko ilo joñan ko kar kōmmane, im eddo ko remaroñ in liki ilo joint ko. Katak ej kōmman bwe en diiklok 200 mm ñan 150 ak 170 mm ilo ien eo ej kalaplok joñan ñan 35-45 kg/m3. Jabdewōt men eo elaplok jen 25% kōttāik ej aikuj juon lale eo eobrak, jab juon kakien. Juon men ej bin an jako: elañe ediklok slab eo, elaplok an maroñ in bōk jikin. Juon 5 mm oktak iumin juon 3 m straightedge ejjab aorōk ilo 200 mm im ej kōmman jikin ko rebin ilo 150 mm.

Joint Spacing: Etke 6 m Panel ko rej jino eo ekkā

Joint spacing ej kōmman an shrinkage stress. Concrete eo ejelok kobban ej bed ilo 6 m panel ko; ilo steel fiber men in emaron eddeklok ñan 8 ak 10 m kinke fiber eo ej kōmman an lap an kajoor. Kalaplok panel ko ewōr juon an aikuj: joñan an mōttan saw-cut ej aikuj tõbar juon mõttan jilu in slab thickness eo, im cut eo ej aikuj in walok elikin an concrete eo bōk kajoor eo ejejjet ak mokta jen an walok shrinkage crack ko, ekkā an 12 ñan 24 awa ko elikin an lap an toor. Kōmman ilo ien eo emōkaj im slab eo emoj an rup ijo ear kōnaan, innem saw cut eo ejjab kōmman jabdrewot. Men eo juon ejjab lale ej dowel spacing: kalaplok panel ko ilo am kejbãrok dowel ko ilo 300 mm im joint ko renaj bōd.

20-40 kg/m3 ej joñan eo ej jerbal ñan floor ko

Lal ko im concrete ko rej kajerbal joñan eo eoktak. Concrete eo ejjab maroñ in mōjno im mōjno ilo 30 ñan 80 kg/m3; floor ko rejjab maroñ in dikļo k im point load ko, ijo 20 ñan 40 kg/m3 emōj an kōkōmman an rup im floor ko rebin rej etal ñan 45. Ilōñ in 50 kg/m3 ej erom penlok im surface fiber exposure ej laplok. joñan in ej 0.25% ñan 0.5% ilo joñan, eo ej joñan eo wot kar jeje ilo ruo wewein. Iien otemjej kōkmanmanlok pedped eo ilo quotation eo, elañe jab enaj diklok wōnan ilo volume fraction im emmanlok ilo kilogram ñan ejja men eo wot.

Flatness im Surface Fiber Exposure

Floor acceptance ej kalibubu flatness, ekkā an FF/FL ak juon 3 m straightedge, barāinwōt joñan an emman. Elap joñan, elap an mōjno im mōkaj in kadedelok aolep rej jibwe fiber ñan ion im kōmman whiskers. Men eo ej kōmmane ejjab diklok fiber ak jilu men ko: kejbãrok slump ilo 140 ñan 180 mm, jino power floating elikin an vibrate, im dry-shake juon hardener ijo ej aikuj. Fiber eo emoj an walok emaron in mwijbar, ak elaplok jen 3 mm in mwijbar ej jolok mõttan in wear layer eo. Ñan jikin wia ko rej jerbal make im rej aikuj in lukkun mōrā, dāpij joñan eo ilo ak diiklok jen 30 kg/m3 im kōnan 0.55 mm fine fiber.

Forklift im Racking Loads: Point Load Governs

Eddo eo elaptata an dik ilo juon jikin jerbal ej forklift eo. Juon 3 t truck im eobrak kin eddo ej etal ikijen emān wiil ko, innem juon wōt wiil emaron in bōk 4 ñan 6 t ion jejjo dozen square centimetres. Bending eo ilo jikin eo jen joñan eddo eo ekkã an laplok jen joñan eddo eo ejjab oktak. Racking ej laplok an nana: emen uprights ilo juon bay, kajjojo kar kōmmane ñan 10 t. Reinforcement im dose rej aikuj in lale nae point load eo enana tata, jab average service load eo. Enin unin an juon jikin wia eo ej jerbal make ej wōnan elaplok jen 30% jen juon jikin wia eo ej bed ilo ejja jikin eo wot.

Joint ko Steel Fiber rejjab maroñ in bōk jikin

Men eo elaptata an jab melele ilo juon jikin jerbal ej bōk steel fiber einwot juon un ñan jab kōmman saw cuts. Fiber ej kōmman bwe en laplok an maroñ in rup im bin, ej kōmman bwe rup ko ren diklok, rebinlok im mõkaj air bellok, ak ejjab bōbrae concrete jen an diklok, innem aolep joint ko rej aikuj in aikuj in mwijiti. Jerbal eo ekkar ej juon saw eo ej mwijiti ilo column grid eo ilo enañin jiljino mita ettol, ilo juon joñan depakpak in juon mōttan emen in depakpak in slab eo; ediklok ejjab kōmman bwe en rup im ediklok ej kōmman an mōjno mōttan eo. Isolation joints rej bed iturin column ko, kona in wall ko im kein jerbal ko, ijo restraint ej bed ie im ejelok fiber ej maroñ in kōmmane. Juon men ej meloklok kake: slab eo ej aikuj in jenolok jen wall ko ilikin im ground beam ko, elañe jab wall eo ej bōbrae slab eo, pattern eo ej jeblak ej oktak im rup eo ej walok ilo lukwon juon ial in wa ko. Dry-shake hardener ej aikuj an make katak. Aggregate eo ej broadcast mokta jen an kar jinoe set ilo 3 ñan 5 kg/m2; elap an mōkaj im ej tulo, elap an to im ejamin bond. Forklift point load ej juon joñan eo ejenolok. Fiber ej kōkōmanmanlok maroñ in mōn, ak mōttan slab eo iumin eddo ko an wiil ko rejjab maroñ in wiaiki kin joñan; 150 mm ej epaak ñan joñan eo iumin juon wa eo ewōr 5 tonne ie, im jabdewōt men eo ediklok ej aikuj in kōmman bwe en mōrā ak juon steel plate. Floor ko rej tōbrak ak likjab ilo joint layout, sub-base flatness im jiljilimjuon raan ko moktata in curing elaplok jen joñan eo kar jeje ion bag eo.

Lalem men ko juon floor inquiry ej aikuj in kwalok

Juon kajjitōk in steel fiber ñan juon floor ej bōk quote ko rej einlok wot juon ñe ej kwalok lalem men ko: joñan depakpak in slab eo im joñan panel eo, joñan eddo ko (juon wōt im joñan eo elaptata), kain subgrade im modulus in subgrade reaction, joñan ak volume fraction, im joñan eo ej aikuj in tōbrak. Export project ko rej aikuj in naetan ASTM A820 ak EN 14889-1. Men eo ekkā an jako ej modulus in subgrade reaction, im ej lukkun ta eo ej kōmman bebe elañe slab eo emaron in diklok. Ñan lale joñan joñan uno ko im joñan ko ilo jikin jerbal eo, jikin jerbal eo ilo steel fiber product page eo ej kwalok joñan joñan uno ko im joñan pack ko rej oktak ñan joñan container ko.