Incamake ya Rebar
Uru rubaho rw'icyuma rwangiritse ni urubaho rusanzwe rwo gushimangira icyuma / rukoreshwa muri sima ikomeye n'inyubako z'amabuye zikomejwe. Rukozwe mu cyuma cyoroshye kandi ruhabwa imbavu kugira ngo rufatanye neza na sima. Guhinduka kw'imbavu bitewe n'uruhare rw'imbavu, na sima bifite ubushobozi bwo gufatana, bishobora kwihanganira imbaraga zo hanze. Urubaho rw'icyuma rwangiritse ni inkoni y'icyuma, urubaho rw'icyuma rusanzwe rushobora gusukurwa, kandi rushobora no gukoreshwa ku mashini z'icyuma. Imiterere y'imbavu zirenga ni uruziga, igufwa rya herringbone, eshatu zifite ishusho y'umurambararo. Umurambararo w'urubaho rw'icyuma cyangiritse uhuye n'umurambararo w'urubaho rw'uruziga rw'igice kingana. Sima ikomeye mu muvuduko mukuru wo gukurura.
Ibisobanuro bya Rebar
| HRB335 | Ibikubiye mu ruganda | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.0-1.6 | 0.4-0.8 | 0.045 Ntarengwa. | 0.045 Ntarengwa. | ||||||
| Imitungo ya Mekanike | Imbaraga z'umusaruro | Imbaraga zo gukurura | Kurekura | |||||||
| ≥335 Mpa | ≥455 Mpa | 17% | ||||||||
| HRB400 | Ibikubiye mu ruganda | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.2-1.6 | 0.2-0.8 | 0.045 Ntarengwa | 0.045 Ntarengwa | ||||||
| Imitungo ya Mekanike | Imbaraga z'umusaruro | Imbaraga zo gukurura | Kurekura | |||||||
| ≥400 Mpa | ≥540 Mpa | 16% | ||||||||
| HRB500 | Ibikubiye mu ruganda | C | Mn | Si | S | P | ||||
| 0.25 Ntarengwa | 1.6 Max | 0.8 Ntarengwa | 0.045 Ntarengwa. | 0.045 Ntarengwa | ||||||
| Imitungo ya Mekanike | Imbaraga z'umusaruro | Imbaraga zo gukurura | Kurekura | |||||||
| ≥500 Mpa | ≥630 Mpa | 15% | ||||||||
Ubwoko bwa Rebars
Bitewe n'ubwoko bw'ibikoresho byakoreshejwe mu gukora rebar, ubwoko butandukanye bwa rebar
l 1. Inzu y'uburemere y'i Burayi
Rebar y'i Burayi ikozwe muri manganese, ituma igorama byoroshye. Ntibikwiriye gukoreshwa mu turere dushobora kwibasirwa n'ikirere kibi cyane cyangwa ingaruka za geologi, nk'imitingito, inkubi y'umuyaga, cyangwa inkubi y'umuyaga. Igiciro cy'iyi rebar ni gito.
l 2. Icyuma cya karuboni gisubiramo
Nk'uko izina ribigaragaza, igizwe n'icyuma cya karuboni kandi izwi cyane nka Black Bar bitewe n'ibara rya karuboni. Ingorane nyamukuru y'iyi rebar ni uko irangirika, ibyo bikaba byagira ingaruka mbi kuri sima n'imiterere yayo. Igipimo cy'imbaraga zo gukurura hamwe n'agaciro bituma rebar y'umukara iba imwe mu mahitamo meza.
l 3. Rebar ifite epoxy-coated
Rebar ifite epoxy-coated ni rebar y'umukara ifite epoxy coat. Ifite imbaraga zimwe zo gukurura, ariko irwanya ingese inshuro 70 kugeza ku 1.700. Ariko, epoxy coat ni nziza cyane. Uko irangi ryangiritse cyane, ni ko irwanya ingese nke.
l 4. Agakoresho ko gushyiramo ibyuma karimo icyuma gishyushya
Rebar ya galvanised irwanya ingese inshuro mirongo ine gusa kurusha rebar y'umukara, ariko biragoye kwangiza irangi rya rebar ya galvanised. Muri urwo rwego, ifite agaciro kanini kurusha rebar ya epoxy-coated. Ariko, ihenze cyane ku kigero cya 40% kurusha rebar ya epoxy-coated.
l 5. Ikirahure-Fibre-Reinforced-Polymer (GFRP)
GFRP igizwe na fibre ya karuboni. Kubera ko igizwe na fibre, kuyigonda ntibyemewe. Irwanya ingese cyane kandi irahenze ugereranyije n'izindi rebar.
l 6. Icyuma gikozwe mu cyuma kidasesagura
Rebar y'icyuma kidashonga niyo rebar ihenze cyane iboneka, igura hafi inshuro umunani ugereranyije na rebar ya epoxy-coated. Ni nayo rebar nziza iboneka mu mishinga myinshi. Ariko, gukoresha icyuma kidashonga mu bihe byose ariko bidasanzwe akenshi birarenze urugero. Ariko, ku bafite impamvu yo kuyikoresha, rebar y'icyuma kidashonga irwanya ingese inshuro 1.500 kurusha black bar; irwanya kwangirika kurusha izindi rebar cyangwa rebar zirwanya ingese; kandi ishobora gupfunyika mu murima.
