Polypropylene (PP) fibers tau dhau los ua kev ua si - hloov pauv hauv kev lag luam pob zeb! Cov khoom siv me me no muab cov txiaj ntsig tseem ceeb, ua kom cov pob zeb ua kom muaj zog, ua haujlwm ntev, thiab tawg ua haujlwm. Txawm hais tias koj yog tus tsim, engineer, lossis tus neeg cog lus, kev nkag siab lub luag haujlwm ntawm PP fibers hauv pob zeb tuaj yeem pab txhim kho qhov zoo thiab kev ua haujlwm ntev ntawm koj cov haujlwm.
PP Fiber yog dab tsi?
Polypropylene (PP) fiber ntau yog cov khoom siv hluavtaws ua los ntawm cov thermoplastic polymer, tshwj xeeb tshaj yog polypropylene resin. Ua los ntawm siab - purity polypropylene, PP fiber yog ib yam khoom uas tsis yog - tshuaj lom thiab hydrophobic. Nws lub ntuj tsis kam rau alkalis thiab acids ua rau nws zoo tagnrho rau qhov hnyav ib puag ncig ntawm cov pob zeb sib xyaw. Nws lub teeb yuag thiab chemical inertness txhais tau tias nws tsis hnov mob nrog cov cement lossis aggregates, ua rau nws siv dav hauv kev tsim kho kev lag luam los txhim kho kev ua tau zoo ntawm pob zeb.
Hom PP Fibers siv hauv pob zeb:
| Hom | Geometric duab | Daim ntawv thov |
| Monofilament fiber ntau | Smooth cylindrical monofilaments | Inhibits yas shrinkage cracking; siv rau hauv nyias- cov khoom siv phab ntsa, cov pob zeb zoo nkauj, thiab tus kheej- cov pob zeb sib xyaw. |
| Fibrillated fiber ntau | Daim ntawv qhia hnub- stretched webs, "Y" lossis "X" zoo li | Txhim kho qhov cuam tshuam tsis kam, qaug zog tiv thaiv, thiab residual flexural zog; haum rau industrial floors, tshav dav hlau runways, thiab tunnel linings. |
| Zoo li / pob fiber ntau | Wavy los yog bundled lug | Hloov steel fiber ntau rau shotcrete thiab lwm yam kev siv cov qauv uas yuav tsum tau muaj kev sib tsoo siab thiab kav ntev. |
PP Fiber Ua li cas hauv pob zeb?
Thaum cov pob zeb ua ntej nchuav, nws tseem nyob hauv lub xeev yas. evaporation ntawm cov av noo tsim capillary tsis zoo siab, uas yooj yim ua rau lub network ntawm shrinkage tawg. Nyob rau theem no, cov polypropylene fibers dispersed nyob rau hauv lub pob zeb ua xws li suav tsis tau cov me me "nruj springs," muab random kev txhawb nqa nyob rau hauv peb qhov ntev, offsetting ib co ntawm shrinkage kev nyuaj siab thiab txo tus naj npawb thiab dav ntawm cov kab nrib pleb thaum ntxov.
Tom qab nkag mus rau theem hardening, microcracks pib tsim nyob rau hauv lub pob zeb. Polypropylene fibers hla cov kab nrib pleb no, "xaws" ob sab ua ke los ntawm lawv qhov roughness thiab mechanical kev koom tes. Raws li cov kab nrib pleb sim qhib ntxiv, cov fibers yog rub los yog me ntsis stretched, dissipating zog. Qhov no txo qhov kev ntxhov siab ntawm qhov tawg tawm thiab ua rau cov kab nrib pleb zuj zus. Yog tias siv cov fibers ntxhib, qhov kev sib txuas no tuaj yeem txuas mus rau micro- tawg me me li millimeters, muab cov pob zeb ua "pseudo- ductility" zoo ib yam li cov hlau.
Cov txiaj ntsig ntawm kev siv PP Fiber hauv pob zeb
Txhim kho Crack Resistance:PP fibers tau zoo heev ntawm kev tswj cov yas shrinkage cracking, tshwj xeeb tshaj yog nyob rau hauv thawj ob peb teev tom qab pouring. Los ntawm kev tsim ib lub micro- txhawb nqa lub network, lawv tiv thaiv kev tawg los ntawm kev ziab, kub hloov, lossis kev sib haum xeeb.
Enhanced Durability thiab Impact Resistance:Qhob infused nrog PP fibers yog tawv dua thiab muaj peev xwm nqus tau ntau dua. Cov fibers txuas microcracks thiab faib kev ntxhov siab, ua kom cov pob zeb tiv taus ntau dua rau kev puas tsuaj, kev cuam tshuam, thiab kev thauj khoom tsis zoo, tshwj xeeb tshaj yog nyob rau hauv kev lag luam thiab siab - kev siv tsheb.
Txo Ntshav Qab Zib thiab Segregation:PP fibers pab kom ruaj khov ntawm cov pob zeb sib xyaw, txo cov ntshav thiab sib sau ua ke. Qhov no ua rau muaj qhov sib xyaw ua ke thiab sib xyaw ua ke ntau dua, ua kom lub ntsej muag zoo dua thiab ua kom ntev ntev -.
Lub teeb thiab Corrosion-Resistant:Tsis zoo li steel mesh lossis hlau fibers, PP fibers yog 100% corrosion-tiv taus thiab sib dua, ua rau lawv yooj yim dua thiab nyab xeeb rau kev thauj thiab sib tov.
Kev siv PP Fiber hauv pob zeb
Cov khoom siv pob zeb Precast
PP fiber yog zoo tagnrho rau precast ntsiab xws li manholes, kav, panels, thiab tuav phab ntsa. Nws txhim kho thaum ntxov - muaj hnub nyoog tawg tiv thaiv thaum demolding thiab tuav, txo cov khoom tsis xws luag thiab pov tseg.
Kev tsim kho vaj tse & kev lag luam
Los ntawm lub hauv paus thiab kev tsav tsheb mus rau phab ntsa thiab lub ru tsev, PP fiber yog qhov kev xaiv zoo tshaj plaws hauv tsev thiab cov tsev lag luam. Nws ua kom ntev -cov txiaj ntsig kav ntev nrog tsawg dua cov kab nrib pleb thiab txhim kho kev ncaj ncees.
Infrastructure Projects
Cov choj, cov pas dej, cov kwj dej, thiab cov qauv hauv hiav txwv tau txais txiaj ntsig los ntawm PP fiber ntau lub teeb yuag, tsis yog -corrosive zog, tshwj xeeb tshaj yog qhov ntev - lub sij hawm kav ntev thiab kev tswj kev tawg yog qhov tseem ceeb.
Yuav Siv PP Fiber li cas hauv kev sib xyaw ua ke
Compatibility nrog Admixtures thiab Reinforcement Materials
Polypropylene fiber ntau ua haujlwm zoo nrog rau feem ntau cov txheej txheem admixtures (plasticizers, retarders, accelerators, thiab lwm yam) thiab siv tau nrog cov tsoos reinforcements xws li Nws ua raws li cov hlau reinforcing los yog steel mesh. Raws li kev txhawb nqa thib ob, nws feem ntau yog siv los tswj kev tawg ntxov ntxov thiab txhim kho matrix kev ncaj ncees.
Uniform Fiber Dispersion
Txhawm rau kom ua tiav cov khoom siv fiber ntau, xyuas kom meej tias cov polypropylene fiber ntau ntxiv rau hauv qhov sib tov maj mam thiab tsis tu ncua thaum lub pob zeb tig. Sib tov yam tsawg kawg 3-5 feeb tom qab ntxiv kom paub meej tias fiber ntau dispersion. Premixing cov fiber ntau rau hauv kev sib xyaw qhuav ntawm cov pob zeb qhuav sib xyaw ua ke kuj tseem siv tau.
PP Fiber vs Steel Fiber vs. iav Fiber
| Kev sib piv | PP Fiber (Polypropylene Fiber) | Hlau Fiber | iav Fiber |
| Nqi | Tus nqi qis, haum rau loj - ntim pob zeb | Tus nqi siab dua, zoo tagnrho rau kev tsim lub zog | Tus nqi nruab nrab, yuav tsum tau kho alkali tsis kam |
| Durability | Zoo, haum rau tsis yog - kev txhim kho durability | Lub zog siab thiab thauj khoom -cov kabmob muaj peev xwm | Tsim nyog, tab sis kev ua tau zoo tuaj yeem txo qis hauv alkaline ib puag ncig |
| Corrosion Resistance | ruaj khov | Yooj yim rau corrosion; xav tau kev tiv thaiv nyob rau hauv ib puag ncig moist los yog chloride | Nruab nrab corrosion kuj; kev ua tau zoo txo qis hauv muaj zog alkali |
Xaus
PP fiber ntau muaj qhov ua tau zoo, ruaj khov, thiab tus nqi - muaj txiaj ntsig zoo rau kev txhim kho kev ua tau zoo. Nws cov khoom tshwj xeeb ua rau nws muaj txiaj ntsig ntxiv rau ntau daim ntawv thov pob zeb, los ntawm cov khoom precast mus rau qhov loj -scale infrastructure. Los ntawm kev sib koom ua ke PP fiber, cov neeg tsim khoom thiab cov kws tsim khoom tuaj yeem txhim kho kev tswj kev tawg, ua kom ntev, thiab tag nrho cov qauv kev ncaj ncees.
