Txheej txheem cej luam ntawm rebar
Qhov no deformed steel bar yog ib qho kev txhawb nqa hlau txhawb nqa / siv hauv kev txhawb nqa pob zeb ua haujlwm thiab txhawb cov qauv Masonry. Nws yog tsim los ntawm cov hlau me me thiab muab pob txha rau cov khoom sib txhuam zoo dua rau cov pob zeb. Deformation ntawm tus tav vim lub luag haujlwm ntawm cov tav, thiab pob zeb muaj peev xwm muaj peev xwm ua tau zoo dua rau kev sib khi, uas tuaj yeem tiv taus sab nraud sab nraud. Lub deformed steel bar yog tus nqaj hlau, ib qho weldable ntshiab kev txhawb nqa hlau bar, thiab tuaj yeem siv thiab rau cov meshes zoo. Cov duab ntawm lub chants transverse yog kauv, herringbone, crescent-puab peb. Lub cheeb tsam nominal ntawm deformed pheej siv cov hlau sib raug zoo mus rau lub cheeb tsam nominal ntawm cov sib npaug sib npaug. Reinforced pob zeb nyob rau hauv lub ntsiab tenile kev ntxhov siab.
Cov lus qhia tshwj xeeb ntawm rebar
| HRB335 | Tshuaj Muaj Tshuaj | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.0-1.6 | 0.4-0.8 | 0.045 Max. | 0.045 Max. | ||||||
| Cov Cuab Yeej Cuab Yeej Cuab Yeej | Paib lub zog | Lub zog tensile | Elongation | |||||||
| ≥335 MPa | ≥455 MPa | 17% | ||||||||
| HRB400 | Tshuaj Muaj Tshuaj | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.2-1.6 | 0.2-0.8 | 0.045 Max | 0.045 Max | ||||||
| Cov Cuab Yeej Cuab Yeej Cuab Yeej | Paib lub zog | Lub zog tensile | Elongation | |||||||
| ≥400 MPA | ≥540 MPa | 16% | ||||||||
| HRB500 | Tshuaj Muaj Tshuaj | C | Mn | Si | S | P | ||||
| 0.25 max | 1.6 Max | 0.8 Max | 0.045 Max. | 0.045 Max | ||||||
| Cov Cuab Yeej Cuab Yeej Cuab Yeej | Paib lub zog | Lub zog tensile | Elongation | |||||||
| ≥500 mpa | ≥630 MPa | 15% | ||||||||
Hom Rebars
Nyob ntawm cov khoom siv uas siv hauv kev tsim cov rebar, sib txawv ntawm cov rebars yog
l 1. European rebar
European Rebar yog ua los ntawm manganese, uas ua rau lawv khoov tau yooj yim. Lawv tsis haum rau kev siv nyob rau hauv cov chaw uas siv rau huab cua huab lossis geological, xws li cov av qeeg, nag xob nag cua, lossis cua daj cua dub. Tus nqi ntawm cov rebar no yog tsawg.
L 2. Cov hlau rebar
Raws li lub npe sawv cev, nws yog tsim los ntawm cov hlau thiab feem ntau tau hu ua Dub Bar vim xim xim. Qhov tseem ceeb ntawm cov rebar no yog tias nws corrodes, uas cuam tshuam cov khoom siv thiab cov qauv. Lub zog tensile piv nrog tus nqi ua rau dub rebar ib qho ntawm cov kev xaiv zoo tshaj plaws.
l 3. Epoxy-coated rebar
Epoxy-coated rebar yog cov rebar dub nrog lub tsho tiv no epoxy. Nws muaj lub zog tib lub zog, tab sis yog 70 txog 1,700 zaug ntau tiv taus corrosion. Txawm li cas los xij, cov txheej epoxy yog qhov zoo heev heev. Qhov ntau dua qhov kev puas tsuaj rau txheej, qhov tsawg tsawg tiv taus corrosion.
l 4. galvanized rebar
Galvanized Rebar tsuas yog plaub caug sijhawm rau corrosion ntau dua li cov rebar dub, tab sis nws nyuaj dua rau kev puas tsuaj ntawm galvanized rebar. Hauv qhov kev hwm ntawd, nws muaj tus nqi ntau dua epoxy-coated rebar. Txawm li cas los xij, nws yog li 40% kim dua epoxy-coated rebar.
l 5. Iav-fiber-fiber-fiberfled-polymer (GFRP)
GFR yog ua los ntawm carbon fiber. Raws li nws tau ua los ntawm fiber ntau, khoov tsis raug tso cai. Nws yog qhov tiv taus corrosion thiab yog kim heev thaum piv rau lwm tus rebars.
l 6. Stainless hlau rebar
Stainless hlau rebar yog qhov tseem ceeb tshaj plaws bar muaj, txog yim zaug tus nqi ntawm epoxy-coated rebar. Nws tseem yog tus rebar zoo tshaj plaws muaj rau cov haujlwm feem ntau. Txawm li cas los xij, siv cov hlau tsis xeb hauv txhua tab sis qhov tshwj xeeb tshaj plaws ntawm cov xwm txheej yog feem ntau overkill. Tab sis, rau cov neeg uas muaj lub laj thawj los siv nws, stainless hlau rebar 1,500 zaug ntau tiv taus corrosion dua li dub bar; Nws yog tiv thaiv ntau dua li ib qho ntawm lwm txoj kev xeb-resistant lossis corrosive hom lossis rebar; Thiab nws tuaj yeem khoov hauv thaj teb.
