Grout tes tsho rebar couplers hloov tensile thiab compressive rog ntawm reinforcing tuav nyob rau hauv precast qhob structural sib txuas. Tsim feem ntau rau kab ntsug- mus rau - lub hauv paus, phab ntsa- mus rau - lub hauv paus, thiab kev sib txuas ntawm cov phab ntsa, cov khoom siv sib txuas no vam khom siab - lub zog tsis yog -shrink grout rau thauj tog rau nkoj deformed rebars nyob rau hauv ib tug cam khwb cia hlau los yog steel vaj tse.

Cov yam ntxwv tseem ceeb ntawm cov khoom

Hom Variations:Muaj nyob rau hauv Full -Grouted (grout anchored ntawm ob qho kawg) thiab Ib nrab-Grouted (ib kawg threaded mechanically, ib kawg grouted) configurations.

Internal Interlocking Profile:Precision- nrum annular ribs hauv kab noj hniav ua kom cov neeg kho tshuab cuam tshuam nrog kev kho grout, tiv thaiv slippage nyob rau hauv siab dynamic thiab zoo li qub loading.

Integrated Grouting Ports:Moulded inlet thiab qhov hluav taws xob cov chaw nres nkoj tso cai hauv qab - nce siab grouting, kom ntseeg tau tias tsis muaj dab tsi - pub dawb mortar filling.

Compact Footprint:Engineered sab nraud diameters tso cai nruj rebar sib nrug thiab txo cov pob zeb npog qhov yuav tsum tau ua.

Cov ntsiab lus tseem ceeb

Parameter	Puv -Grouted Tsho	Ib nrab -Grouted Tes Tsho
Siv tau Rebar Sizes	#4 txog #18 (12mm - 40mm)	#4 txog #18 (12mm - 40mm)
Txuas kawg 1	Grout kab noj hniav (Annular ribs)	Parallel ISO Metric Xov (M14-M45)
Txuas kawg 2	Grout kab noj hniav (Annular ribs)	Grout kab noj hniav (Annular ribs)
Yield Strength Target	>= 125% tau teev tseg rebar tawm los	>= 125% tau teev tseg rebar tawm los
Tensile Lub Zog Lub Hom Phiaj	Tag nrho bar so (Hom 2 splice)	Tag nrho bar so (Hom 2 splice)
Grout Compressive zog	>= 85 MPa (12,300 psi) ntawm 28 hnub	>= 85 MPa (12,300 psi) ntawm 28 hnub

Qib & Standards

Khoom Qib:Nodular Ductile Iron QT500-7 / QT450-10 (ASTM A536 Qib 65-45-12) lossis Seamless Structural Steel Tubes (20 # / Carbon Steel 1020).

International Standards Ua raws li:
• ACI 318: Txaus siab rau Hom 1 thiab Hom 2 cov txheej txheem kev sib txuas tshuab.
• ICC-ES AC133: Splice systems rau rebar nyob rau hauv pob zeb ua qauv nyob rau hauv cyclic loading.
• EN 1992-1-1 (Eurocode 2): Mechanical coupling ntawm reinforcing steel.
• JGJ 107 / JGJ 355: Technical specification rau grouted tes tsho splicing.

Daim ntawv thov

Precast Shear phab ntsa:Txuas vaj huam sib luag- mus rau - lub hauv paus thiab ntsug vaj huam sib luag - mus rau - vaj huam sib luag hauv vaj tse thiab kev lag luam.

Precast Kem & Beams:Load-cov kabmob sib txuas uas yuav tsum tau ua haujlwm puv sijhawm.

Civil Infrastructure:Choj piers, abutments, precast retaining phab ntsa, thiab cov khoom siv hluav taws xob.

Seismic Zones:Cov pob qij txha tseem ceeb uas xav tau siab -ductility cyclic loading resilience (Seismic Design Categories A–F).

Kev teeb tsa

Ua ntej- Casting Preparation:Ruaj ntseg lub tes tsho hauv lub formwork siv muab cov roj hmab ntsaws los yog daim hlau mounting. Rau ib nrab -gouted variants, xov mus rau cov tuav siv lub siab rebar thaum uas tig mus threading tshuab los teev torque nqis.

Ntawm -Site Alignment:Tsawg precast ntsiab dhau qhov projecting foundation rebar. Txheeb xyuas qhov tob tob qhov sib tw lub tes tsho ntev cov cim.

Joint Sealing:Kaw qhov sib txawv hauv qab cov khoom precast uas tsis yog -shrink mortar txaj kom muaj grout siab.

Grout Txhaj:Pump tshwj xeeb siab -lub zog tsis yog-shrink grout rau hauv qab inlet chaw nres nkoj kom txog thaum nruam ntws tawm ntawm qhov chaw nres nkoj sab saum toj. Cap ports tam sim ntawd kom tswj lub taub hau siab.

Zoo & Kev Xeem

Tensile & Ductility Testing:Uniaxial nro kev ntsuam xyuas kev puas tsuaj; txheeb xyuas kom dhau qhov kawg bar zog (bar so tsis ua hauj lwm hom).

Cyclic Loading Test:Siab -kev nyuaj siab thiab loj- mob qis- kev sim qaug zog ib puag ncig ICC-ES AC133 raws tu qauv.

Kev tshuaj xyuas metallurgical:100% magnetic particle los yog ultrasonic soj ntsuam ntawm cov hlau hlau castings kom paub tseeb tias xoom hauv blowholes los yog shrinkage kab noj hniav.

Dimensional Verification:Xov xov pitch gauge pov thawj thiab lub tes tsho kab noj hniav nyob rau hauv $\\pm 0.5\\text{mm}$.

Traceability & Cov ntaub ntawv:ISO 9001 kev tswj hwm qhov zoo nrog EN 10204 3.1 Cov Ntaub Ntawv Xeem Xeem (MTR) muab rau txhua pawg.

Muab & Customization

Custom Dimensions:Customized inner/outer diameters, length extensions, and wall thicknesses for specific edges -txoj kev deb.

Xov Customization:Parallel metric threads, UNC/UNF threads, los yog kev cai xov pitches rau ib nrab -grouted variants.

Kev kho deg:Plain dub, epoxy coated, kub-dip galvanized, los yog zinc{1}}nplua nuj primer txheej rau marine thiab corrosive ib puag ncig.

OEM Marking:Cam khwb cia- nyob rau hauv batch tooj, rebar loj identifiers, thiab kev cai logo branding ntawm lub tes tsho sab nrauv.

Dab tsi cov neeg yuav khoom yuav tsum muab

Yuav kom tau txais cov lus hais txog engineering hauv 24 teev, xa:

Rebar Specifications:Qib steel (piv txwv li, ASTM A615 Qib 60/80, BS 4449 Qib B500B) thiab nominal bar diameters.

Hom Coupler:Tag nrho -grouted lossis ib nrab- grouted lub tes tsho yuav tsum.

Txoj Haujlwm Ua Raws Li Txoj Cai:Kev pom zoo tshwj xeeb hauv cheeb tsam tus qauv (ACI 318, ICC-ES, EN cov qauv).

Coating Requirements:Plain tiav, kub-dip galvanizing, lossis epoxy txheej.

Quantity & Teem sijhawm:Daim ntawv suav rau ib qhov ntev thiab lub sijhawm xa khoom.

FAQ

Q: Dab tsi compressive zog yuav tsum tau rau lub grout?

A: Qhov tsis yog -shrink grout yuav tsum ncav cuag qhov tsawg kawg nkaus 28-hnub compressive zog ntawm 85 MPa (12,300 psi) kom ua tiav qhov yuav tsum tau shear bond zog ntawm bar thiab lub tes tsho phab ntsa.

Q: Dab tsi yog qhov txawv ntawm qhov puv -gouted thiab ib nrab- lub tes tsho grouted?

A: Tag nrho- lub tes tsho grouted txais teb- ntxig rebar los ntawm ob qho kawg thiab yuav tsum tau grouting rau ob qho tib si. Ib nrab- lub tes tsho grouted feature Hoobkas-prethreaded kev sib txuas ntawm ib kawg thiab grout txhaj rau ntawm qhov kawg, txuag precast vaj huam sib luag thickness thiab lub sij hawm npaj.

Q: Cov couplers puas tuaj yeem siv rau hauv thaj chaw siab seismic?

A: Yog. Cov khoom ua raws li ACI 318 Hom 2 thiab ICC-ES AC133 cyclic stress protocols raug ntsuas rau Seismic Design Categories A txog F.

Q: Koj ua li cas tiv thaiv grout to thaum lub sij hawm txhaj tshuaj?

A: Rubber sealing rings haum ntawm lub tes tsho xaus kaw cov ntsiab lus nkag bar, thaum lub txaj grout muab tso rau hauv qab lub vaj huam sib luag muaj lub siab hauv qab thaum txhaj tshuaj.

Q: Puas yog kev cai rebar qhov ntau thiab tsawg txhawb?

A: Lub tes tsho tuaj yeem ua tau raws li kev cai- tshuab lossis cam khwb cia rau tsis yog- tus qauv bar diameters, kev cai xov profiles, lossis kev hloov pauv txuas nrog ob qhov sib txawv rebar ntau thiab tsawg.

Q: Cov ntaub ntawv zoo li cas nrog cov khoom xa tuaj?

A: Txhua qhov ntau lawm suav nrog EN 10204 3.1 Cov Ntawv Qhia Txog Cov Khoom Siv (MTR), piav qhia cov tshuaj muaj pes tsawg leeg, cov ntaub ntawv ntsuas tensile, thiab cov ntawv tshuaj xyuas qhov ntev.

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