Bayanin Rebar
Wannan ƙaƙƙarfan sandar ƙarfe shine shingen ƙarfafa ƙarfe na gama-gari/ wanda ake amfani dashi a cikin ƙaƙƙarfan simintin da aka ƙarfafa da kuma ƙarfafa gine-gine. An kafa shi daga karfe mai laushi kuma ana ba shi hakarkarin don ingantacciyar mannewa mai jujjuyawa zuwa kankare. Lalacewar haƙarƙari saboda rawar haƙarƙari, da siminti suna da mafi girman ikon haɗin gwiwa, wanda zai iya jure wa sojojin waje. Karfe da aka lalatar sandar ƙarfe ce, sandar ƙarfe mai ƙarfi mai walƙiya, kuma ana iya amfani da ita da mashin ƙarfe. Siffar haƙarƙari mai jujjuyawa shine karkace, herringbone, mai siffar jinjirin wata uku. Matsakaicin ƙaƙƙarfan diamita na ƙaƙƙarfan sandar ƙarfe mai ƙaƙƙarfan ƙaƙƙarfan ya yi daidai da ƙaƙƙarfan diamita na madauwari mai madauwari daidai sashin giciye. Ƙarfafa kankare a cikin babban damuwa mai ƙarfi.
Bayanin Rebar
| HRB335 | Abubuwan sinadaran | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.0-1.6 | 0.4-0.8 | 0.045 Max. | 0.045 Max. | ||||||
| Kayan Injiniya | Ƙarfin bayarwa | Ƙarfin ƙarfi | Tsawaitawa | |||||||
| ≥335 Mpa | ≥455 Mpa | 17% | ||||||||
| HRB400 | Abubuwan sinadaran | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.2-1.6 | 0.2-0.8 | 0.045 Max | 0.045 Max | ||||||
| Kayan Injiniya | Ƙarfin bayarwa | Ƙarfin ƙarfi | Tsawaitawa | |||||||
| ≥400 Mpa | ≥540 Mpa | 16% | ||||||||
| HRB500 | Abubuwan sinadaran | C | Mn | Si | S | P | ||||
| 0.25 Max | 1.6 Max | 0.8 Max | 0.045 Max. | 0.045 Max | ||||||
| Kayan Injiniya | Ƙarfin bayarwa | Ƙarfin ƙarfi | Tsawaitawa | |||||||
| ≥500 Mpa | ≥630 Mpa | 15% | ||||||||
Nau'in Rebars
Dangane da nau'in kayan da aka yi amfani da su wajen samar da rebar, nau'ikan rebar iri-iri ne
l 1. Turai Rebar
An yi rebar na Turai da manganese, wanda ke sa su lanƙwasa cikin sauƙi. Ba su dace da amfani da su ba a wuraren da ke fuskantar matsanancin yanayi ko tasirin yanayin ƙasa, kamar girgizar ƙasa, guguwa, ko mahaukaciyar guguwa. Kudin wannan rebar yayi kadan.
l 2. Karfe Karfe Rebar
Kamar yadda sunan ke wakilta, an yi shi da ƙarfe na carbon kuma an fi sani da Black Bar saboda launin carbon. Babban koma baya na wannan rebar shi ne cewa ya lalace, wanda ke yin illa ga siminti da tsarin. Matsakaicin ƙarfin ƙwanƙwasa haɗe tare da ƙima yana sanya baƙar fata rebar ɗaya daga cikin mafi kyawun zaɓi.
l 3. Rebar mai rufin Epoxy
Rebar mai rufin Epoxy baƙar fata ce mai rufi tare da gashin epoxy. Yana da ƙarfi iri ɗaya, amma yana da juriya sau 70 zuwa 1,700 ga lalata. Koyaya, murfin epoxy yana da ban sha'awa sosai. Mafi girman lalacewa ga sutura, ƙarancin juriya ga lalata.
l 4. Galvanized Rebar
Galvanized rebar sau arba'in ne kacal ya fi juriya ga lalata fiye da baƙar fata, amma yana da wahala a lalata rufin rebar galvanized. A wannan yanayin, yana da ƙima fiye da rebar mai rufin epoxy. Koyaya, kusan 40% ya fi tsada fiye da rebar mai rufin epoxy.
l 5. Glass-Fiber-Reinforced-Polymer (GFRP)
GFRP an yi shi da carbon fiber. Kamar yadda aka yi shi da fiber, ba a yarda lankwasawa. Yana da matukar juriya ga lalata kuma yana da tsada idan aka kwatanta da sauran rebars.
l 6. Bakin Karfe Rebar
Rebar Bakin Karfe shine mashaya ƙarfafa mafi tsada da ake samu, kusan sau takwas farashin mashin mai mai rufin epoxy. Hakanan shine mafi kyawun rebar da ake samu don yawancin ayyuka. Duk da haka, yin amfani da bakin karfe a cikin duka amma mafi musamman na yanayi sau da yawa wuce kima. Amma, ga waɗanda suke da dalilin amfani da shi, bakin karfe rebar sau 1,500 mafi juriya ga lalata fiye da baƙar fata; yana da juriya ga lalacewa fiye da kowane nau'in juriya mai lalacewa ko ɓarna-ƙira ko rebar; kuma ana iya lankwasa shi a filin.
