Polypropylene Fiber (PP Fiber)tau tshwm sim los ua ib qho tseem ceeb ntxiv hauv kev ua vaj tse pob zeb, muaj koob npe rau nws lub peev xwmtxhim khu durability,txo kev tawg, thiabtxhim kho kev cuam tshuam tsis zoo. Thaum sib xyaw ua ke kom raug, cov micro-reinforcements ua raws li cov khoom tensile faib, bridging micro-cracks thiab redistributing kev ntxhov siab los txhim kho kev ncaj ncees.

Txawm li cas los xij, kev noj tshuaj tsis raug - txawm tias ntau dhau lossis tsis txaus - tuaj yeem cuam tshuam kev ua haujlwm, qhia txog qhov tseem ceeb ntawm daim ntawv thov raug.

Lub luag haujlwm ntawm PP Fiber hauv kev sib xyaw ua ke

PP Fiber muab peb cov txiaj ntsig engineering:

1. Kev tawg yooj yim: Thaum ntxov-theem kho, nws txwv cov yas shrinkage cracking los ntawm bridging nascent micro-cracks, tiv thaiv lawv propagation rau hauv pom tsis xws luag.

2. Kev ua kom muaj zog: Los ntawm kev txhim kho ductility, PP Fiber txhim khu lub pob zeb muaj peev xwm nqus tau qhov cuam tshuam thiab qaug zog loads, txo cov kev pheej hmoo ntawm pob txha tawg.

3. Durability Augmentation: Los ntawm void-filling thiab tawg refinement, nws txo permeability, tiv thaiv dej ingress, tshuaj corrosion, thiab rebar deterioration.

Cov txiaj ntsig ntawm Non-Fiber Concrete

♦ Yas Shrinkage Cracking

Thaum tsis muaj PP Fiber: Kev ya raws nrawm nrawm ua rau cov kab nrib pleb (0.3-2 mm dav) hauv 24 teev, cuam tshuam qhov kev ncaj ncees ntawm qhov chaw.
Nrog PP Fiber: Fiber-matrix kev sib cuam tshuam txo cov kev tawg thaum ntxov los ntawmtshaj 70%.

♦ Impact Resistance Deficiency

Unreinforced qhob: Muab pov thawj nkig tsis ua hauj lwm nyob rau hauv 30 J cuam tshuam lub zog (xws li, forklift kev sib tsoo los yog dynamic loading).
Fiber-reinforced qhob: Lub zog nqus muaj peev xwm nce2-4 zaug, txo qhov pheej hmoo ntawm pob txha.

♦ Accelerated Durability Degradation

Tsis muaj PP Fiber: Cov kab nrib pleb uas tsis muaj peev xwm pab txhawb dej thiab tshuaj chloride nkag mus, ua kom cov rebar corrosion thiab nto spalling.
Nrog PP Fiber: Tight crack control (60%, extending kev pab cuam lub neej los ntawm8-12 xyoonyob rau hauv ib puag ncig hnyav.

Quantitative Performance Comparison

Cov ntaub ntawv ntau ntxiv hauv qab no qhia txog cov txiaj ntsig zoo ntawm PP Fiber hauv cov ntsuas kev ua haujlwm tseem ceeb:

Kev pheej hmoo ntawm kev siv tsis raug PP Fiber ntau

1. Tsis txaus Fiber Ntxiv

•Crack Tswj Failure: Kev siv tsis txaus tso cai rau cov kab nrib pleb kom nthuav dav los ntawm40%(piv txwv li, hauv kev siv slab).

•Kev cuam tshuam kev ua haujlwm poob qis: Dynamic load peev poob los ntawm30% -50%, ua rau muaj kev cuam tshuam rau kev khiav tsheb lossis seismic loads.

•Corrosion Acceleration: Chloride ingress tus nqi nce los ntawm60%nyob rau hauv marine ib puag ncig, compromising rebar tiv thaiv.

2. Muaj fiber ntau ntxiv

•Segregation & clumping: Agglomerated fibers tsim cov cheeb tsam tsis muaj zog, txo cov compressive zog los ntawm10% -15%.

•Kev ua haujlwm tsis zoo: Slump txo los ntawmntau dua 15%, xav tau dej ntxiv thiab ua kom muaj kev pheej hmoo ntawm dej-cement piv.

•Kev sib haum xeeb muaj zog: Kev cuam tshuam nrog cov cement hydration txo cov kev sib raug zoo, cuam tshuam rau kev ncaj ncees.

Case Sample

A 6 m³ industrial slab mix tsim rau 1.5 kg / m³ PP Fiber (9 kg tag nrho)

•Kev txhaj tshuaj qis dua (0.5 kg / m³): Kev sib tsoo tsis kam poob los ntawm 40%.

•Kev noj ntau dhau (4 kg / m³): Kev ua haujlwm poob qis los ntawm 15% nrog rau qhov tsis xws luag ntawm honeycombing.

Kev Kho Kom Zoo rau Kev Siv Tshuaj Tsis Zoo

Pre-Pouring Adjustments

•Dosage kho: Ntxiv cov fibers uas ploj lawm thiab remix rau ≥5 feeb(Tsis txhob ntxiv cov cement qhuav).

•Kev Txhim Kho Dispersion: Qhia 0.2% polycarboxylate dispersant los daws cov clumping.

•Txhim kho kev ua haujlwm: SivJINJI superplasticizertswj kev poob qistsis cuam tshuam kev sib xyaw tsim.

Post-Pouring (Ua ntej teeb tsa)

•Mechanical Redistribution: Maj mam sib tov qis qis (30 vib nas this) kom rov faib cov fibers, tsis txhob sib sau ua ke.

•Kev kho qhov saum npoo: Tshem tawm cov pob pom los ntawm steel zuag raking.

Tom qab Hardening Solutions

•Kev kuaj tsis yog kev puas tsuaj (NDT): Xyuas kom rov qab rauj nyeem ntawv≥40 MParau structural txaus.

•Crack Rehabilitation: Txhaj epoxy rau hauv cov kab nrib pleb> 0.3 hlisiv ASTM C881 raws tu qauv.

Cov Lus Qhia Txog Kev Ua Haujlwm Zoo

▶ Pom zoo ntau npaum li cas

*Nco tseg: Ib txwm ua kev sim sib xyaw kom siv tau raws li kev sib sau ua ke, hom cement, thiab qhov project specifications(Cov lus saum toj no tsuas yog siv rau kev siv xwb).

▶ Mixing Protocol

•Qhia cov fibersnrog 20% ​​ntawm kev sib sau ua ketiv thaiv clumping.

•Sib tov rau ntau tshaj 90 vib nas thislos xyuas kom meej homogeneous dispersion.

JINJI PP Fiber: Engineered rau kev ntseeg tau

Raws li lub tuam txhab ua lag luam ntawm kev tsim kho tshuaj additives, JINJI CHEMICAL tsis tsuas yog tsimcellulose ether,redispersible polymer hmoov, tab sis kujHPS, PCE, CMC, PP Fiberthiab lwm yam. JINJI ua ke nrog kev txiav-ntug R & D nrog kev tswj xyuas zoo thiab ua haujlwm rau kev lag luam thoob ntiaj teb. Nrog rau kev cog lus rau kev tsim kho tshiab thiab zoo, JINJI's premium PP Fiber muaj:

✅Uniform Dispersion: Proprietary anti-clumping thev naus laus zis ua kom muaj kev faib ua homogeneous.

✅Txhim khu kev txhim kho: Ua kom muaj zog flexural los ntawm 8-12% thiab txo cov kab nrib pleb los ntawm 50% (ASTM C1609).

✅Ntau yam: Haum rau precast, cast-in-place, thiab kho daim ntawv thov.

✅Sustainability: Ua los ntawm 100% rov siv dua polypropylene, ua raws li ISO 9001 thiab ASTM C1116 tus qauv.

✅Ntxiv Compatibility: Zoo heev compatibility nrog ntau additives xws li dej reducer, thickener, dej retention agent, retarder, waterproofing agent, thiab lwm yam.

Hu rauPeb: Rau kev cai sib xyaw tsim lossis kev txhawb nqa, emailcontact@jinjichemical.comlos yog hu+86-159-30812945ncaj qha. Xyuas kom koj cov phiaj xwm pob zeb tau txais txiaj ntsig los ntawm kev pom cov fiber ntau ntxiv!