Concrete rebar spacers (tseem hu ua pob zeb npog blocks) txoj hauj lwm steel reinforcement ntawm qhov nrug deb ntawm formwork ua ntej pob zeb pouring. Tsim los ntawm fiber ntau- ntxiv dag zog, siab - ntom ntom cementitious sib tov, cov spacers no phim lub zog compressive, thermal expansion, thiab permeability yam ntxwv ntawm ib puag ncig cov pob zeb. Tsis zoo li cov rooj zaum yas lossis hlau, cov cementitious spacers sib koom ua ke rau hauv cov khoom ua vaj tse, tshem tawm cov micro- tawg, txoj kev corrosion, thiab thermal ciam teb tsis ua hauj lwm hla precast thiab cam khwb cia- hauv - daim ntawv thov.

Cov yam ntxwv tseem ceeb ntawm cov khoom

Monolithic Material Compatibility:Zoo tib yam thermal expansion coefficient rau structural pob zeb tiv thaiv kev sib cais kab sib cais thaum lub caij kub.

Siab Load Capacity:Compressive zog ratings li ntawm 50 MPa mus rau 80 MPa txhawb nqa hnyav rebar lev thiab cov neeg ua hauj lwm ko taw tsheb tsis crushing los yog tilting.

Tsawg Permeability:Cov dej nqus dej qis dua 2.5% tiv thaiv kev ya raws, chloride ion nkag mus, thiab tom qab rebar oxidation.

Hluav taws kub Resistance:Ua tiav Chav Kawm A1 qhov hluav taws kub tsis muaj pa phem lossis kev puas tsuaj ntawm cov txheej txheem ntawm qhov kub siab.

Txoj Kev Ruaj Ntseg Txuas Ntxiv:Muaj nrog kev sib txuas ntawm cov xov hlau mos mos (0.9 hli mus rau 1.2 hli ntsuas) los yog cov khoom siv snaps -nyob rau hauv cov clips los tiv thaiv kev txav thaum lub sij hawm ua vaj tse kev co.

Ntsiab Specifications

Parameter	Specification Range	Kev xeem Standard
Compressive zog	50 N / mm² txog 80 N / mm² (C50/60 txog C70/85)	EN 12390-3 / ASTM C39
Qhob Cover nrug	20mm txog 75mm (Kev Xaiv Ib Leeg, Ob Chav, lossis Triple Cover Options)	BS 8500/DIN 1045
Kev nqus dej	Tsawg dua lossis sib npaug li 2.5%	IB 1881-122
Dimensional kam rau ua	Ntxiv los yog rho tawm 1.0 mm	ISO 2768-m
Cov ntsiab lus chlorides	Tsawg dua lossis sib npaug li 0.10% los ntawm cov cement	TS EN 480-10
Qhov ntom	2,200 kg / m³ txog 2,400 kg / m³	TS EN 12390-7
Kho Hlau	Galvanized steel los yog mos annealed khi hlau (16 mus rau 18 AWG)	ASTM A641 Cov Lus Qhia Tshwj Xeeb

Qib & Standards

Peb cov khoom ua tau raws li cov qauv kev sib xyaw ua ke rau thoob ntiaj teb civil engineering thiab precast ua haujlwm:

BS 7973-1 thiab BS 7973-2:Spacers thiab cov rooj zaum rau steel reinforcement (Qeb H hnyav-cov haujlwm load ratings).

DIN 1045 / DBV Code of Practice:"Spacers" (DBV-c-L2/F/T/A) cov lus qhia rau durability, load bearing, and freeze-thaw resistance.

TS EN 1992-1-1 (Eurocode 2):Yam tsawg kawg nkaus yuav tsum muaj rau kev tiv thaiv corrosion thiab kev ruaj ntseg hluav taws.

SIB 318:Cov txheej txheem tshwj xeeb rau steel qhov chaw tso chaw kam rau ua thiab kev tiv thaiv ib puag ncig.

Daim ntawv thov

Precast Concrete Factories:Slabs, phab ntsa vaj huam sib luag, kab, kab, thiab ua ntej -stressed girders yuav tsum tau precision cover kam rau ua.

Infrastructure & Choj Kev Tsim Kho:Choj decks, piers, abutments, thiab segmental box girders raug rau deicing ntsev thiab huab cua huab cua.

Marine & Offshore Engineering:Seawalls, jetties, docks qhuav, thiab cov chaw nres nkoj ua haujlwm nyob rau hauv cov tshuaj chloride tsis tu ncua.

Underground Structures:Tunnels, foundation rafts, diaphragm phab ntsa, thiab khaws cov qauv yuav tsum muaj kev txhawb nqa hnyav.

Kev teeb tsa

Kev txheeb xyuas:Paub meej tias qhov kev ncua deb npog qhov sib npaug ntawm cov qauv kos duab ua ntej tso.

Spacing & Pitch:Txoj hauj lwm spacers raws qhov kev txhawb nqa ntawm lub sijhawm ntawm 0.8 m txog 1.0 m, tswj qhov siab tshaj plaws ntawm 500 mm nyob ze ntawm qhov kawg thiab cov npoo.

Kev ruaj ntseg:Khi lub integrated mos annealed hlau nruj nreem nyob ib ncig ntawm kev sib tshuam ntawm thawj thiab theem nrab rebar siv ib tug nuv cuab tam.

Kev taw qhia:Txoj hauj lwm ntau- npog thaiv qhov sib txawv (xws li 30/40/50 mm) los nthuav qhia lub ntsej muag kom raug tawm tsam lub vaj huam sib luag formwork.

Formwork Inspection:Xyuas kom lub ntsej muag tiaj tus ntawm lub spacer zaum tawm tsam lub ntsej muag formwork kom tsis txhob nto imprint ncej- stripping.

Zoo & Kev Tshuaj Xyuas

Txhua pawg tsim khoom tau dhau los kuaj cov qauv thiab cov ntaub ntawv pov thawj hauv peb lub chaw kuaj xyuas zoo ua ntej xa khoom xa tuaj:

Compressive Strength Test:Hydraulic xovxwm kuaj ntawm lub voos xwmfab qauv xaiv ib 5,000 units raws li EN 12390-3.

Load Deflection & Crushing Resistance:Vertical point-load pov thawj siv txog li 3.0 kN yam tsis muaj cracking lossis deformation mus tas li.

Dej Permeability & Absorption:72-teev immersion kuaj xyuas qhov ntom ntom thiab porosity txwv.

Txias-Thaw Durability:Cyclic thermal chamber kuaj (-20℃rau +60℃) xyuas qhov kev ncaj ncees ntawm cov micro-spalling.

Batch Traceability:Cov cim batch naj npawb cim cim rau ntawm cov ntim sab nraud qhia txog hnub tsim khoom, cov khoom siv raw, thiab cov ntawv qhia txog kev sim.

Muab & Customization

Ntim Cov Kev Xaiv:UV-cov hnab resistant, corrugated master cartons, los yog tshav kub-cov hnab yas kaw ntim rau ntawm cov ntoo pallets (ISPM 15 tshav kub- kho rau kev xa tawm).

Private Labeling:Customized ntim, thawv luam ntawv, thiab barcoding raws li distributor xav tau.

Custom Concrete Formulations:High-sulfate-resistant (SR) cement formulations, silica fume additives, los yog cov xim tshwj xeeb txuam rau cov vaj tse vaj tse.

Kev cai Profiles:Cov duab txiav, ntau- npog geometry, thiab cov khi tshwj xeeb- hlau ntev (txog 250 hli) tsim los ntawm CAD kos duab.

Yam uas cov neeg yuav khoom yuav tsum muab

Txhawm rau tsim kom muaj qhov tseeb kev hais lus thiab xa cov qauv xa tawm, muab cov ntsiab lus hauv qab no:

Yuav tsum tau pob zeb npog qhov deb (mm) thiab rebar txoj kab uas hla (mm).

Qhob compressive zog chav kawm (xws li C40/50, C50/60) los yog tshwj xeeb ceev xav tau.

Txhim kho hom kev nyiam (kev sib txuas ua ke hlau, clip-on, lossis dawb tsis muaj hlau).

Daim ntawv thov raug rau chav kawm (xws li XC4, XS3, XF4 raws li EN 206).

Qhov xav tau ntau npaum li cas thiab lub hom phiaj chaw nres nkoj xa khoom (FOB / CIF cov nqe lus).

FAQ

Q: Vim li cas thiaj xaiv cov fiber ntau-cov pob zeb ua kom muaj zog dua cov yas yas?

A: Yas spacers nthuav dav ntawm 4 mus rau 6 npaug ntawm tus nqi ntawm cov pob zeb, tsim micro- qhov sib txawv raws li thaj tsam formwork qhov twg dej thiab chlorides nkag mus. Fiber-cov pob zeb ua kom muaj zog ua kom muaj kev sib txuas nrog cov pob zeb sib txuas, tuav cov nqi sib npaug, hluav taws kub tsis kam, thiab kev ua haujlwm zoo.

Q: Lub peev xwm thauj khoom ntawm cov pob zeb rebar spacers yog dab tsi?

A: Heavy-cov haujlwm ua vaj tse pob zeb txhawb nqa cov ntsiab lus siab tshaj 3.0 kN (300 kg). Lawv txhawb nqa hnyav ntau- txheej txheej rebar daim phiaj, tshaj tawm -tensioning cables, thiab kev teeb tsa cov neeg ua haujlwm txav tsis tau tawg lossis swb.

Q: Cov spacers no puas tuaj yeem siv hauv marine lossis siab -chloride ib puag ncig?

A: Yog. Tsim los nrog qis- dej- nqus mortar (tsawg dua lossis sib npaug li 2.5%) thiab xaiv tau sulfate- cov cements resistant, cov spacers no ntsib cov chav kawm raug XS1 txog XS3 thiab XD1 rau XD3 raws li EN 206 rau cov qauv hauv hiav txwv thiab cov choj decks.

Q: Puas yog cov hlua khi stainless hlau lossis galvanized?

A: Standard units feature mos annealed galvanized khi hlau (1.0 hli mus rau 1.2 hli txoj kab uas hla). Rau ib puag ncig nruj, stainless hlau xaim (AISI 304 / 316) lossis tsis yog -hlau kho clips muaj nyob rau ntawm kev thov.

Q: Cov ntawv pov thawj dab tsi nrog cov khoom xa tuaj?

A: Cov khoom xa tuaj suav nrog Daim Ntawv Pov Thawj Kev Ntsuam Xyuas (CoA), EN 10204 3.1 cov ntaub ntawv xeem cov ntaub ntawv, cov txiaj ntsig kev ntsuas lub zog compressive, thiab cov lus tshaj tawm txog cov khoom siv raw.

Q: Dab tsi yog lub sij hawm coj mus kuaj rau qhov loj me lossis siab - ntim xaj?

A: Cov khoom lag luam tus qauv xa tuaj hauv 7 mus rau 10 hnub. Kev cai profiles, tshwj xeeb cement sib tov, los yog ntim ntau tshaj 500,000 units yuav tsum tau 15 mus rau 21 hnub ntau lawm voj voog los ntawm kev pom zoo kos duab.

Cim npe nrov: Tuam Tshoj qhob rebar spacers manufacturers, lwm tus neeg, Hoobkas