Ukubuka konke kwe-Rebar
Le bha yensimbi ekhubazekile iyibha evamile yokuqinisa insimbi/ esetshenziswa kukhonkolo eqinisiwe kanye nezakhiwo zamatshe eziqinisiwe. Yakhiwe ngensimbi emnene futhi inikezwa izimbambo zokunamathela okungcono kokungqubuzana kukhonkolo. Ukuguqulwa kwezimbambo ngenxa yendima yezimbambo, futhi ukhonkolo unamandla amakhulu okubopha, angamelana kangcono namandla angaphandle. Ibha yensimbi ekhubazekile iyinduku yensimbi, ibha yensimbi yokuqinisa ithafa eshisekayo, futhi ingasetshenziswa futhi kumameshi ensimbi. Ukuma kwezimbambo eziphambanayo ku-spiral, herringbone, ezintathu ezimise okwecrescent. Ububanzi bokuzisholo bebha yensimbi eqinisiwe ekhubazekile buhambisana nobubanzi obuncane bebha eyindilinga yesigaba esiphambene esilinganayo. Ukhonkolo oqinisiwe ekucindezelekeni okukhulu kwe-tensile.
Ukucaciswa kwe-Rebar
| I-HRB335 | Ukwakheka kwamakhemikhali | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.0-1.6 | 0.4-0.8 | 0.045 Max. | 0.045 Max. | ||||||
| Impahla Mechanical | Amandla esivuno | Amandla aqinile | Ukwelula | |||||||
| ≥335 Mpa | ≥455 Mpa | 17% | ||||||||
| I-HRB400 | Ukwakheka kwamakhemikhali | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.2-1.6 | 0.2-0.8 | 0.045 Max | 0.045 Max | ||||||
| Impahla Mechanical | Amandla esivuno | Amandla aqinile | Ukwelula | |||||||
| ≥400 Mpa | ≥540 Mpa | 16% | ||||||||
| I-HRB500 | Ukwakheka kwamakhemikhali | C | Mn | Si | S | P | ||||
| 0.25 Max | 1.6 Ubukhulu | 0.8 Max | 0.045 Max. | 0.045 Max | ||||||
| Impahla Mechanical | Amandla esivuno | Amandla aqinile | Ukwelula | |||||||
| ≥500 Mpa | ≥630 Mpa | 15% | ||||||||
Izinhlobo zama-Rebars
Kuya ohlotsheni lwento esetshenziswa ekukhiqizeni i-rebar, izinhlobo ezahlukene zama-rebar zikhona
l 1. I-European Rebar
I-rebar yaseYurophu yenziwe nge-manganese, ebenza bagobe kalula. Azilungele ukusetshenziswa ezindaweni ezijwayele ukuba nezimo zezulu ezimbi kakhulu noma imiphumela ye-geological, efana nokuzamazama komhlaba, iziphepho, noma iziphepho. Izindleko zale rebar ziphansi.
l 2. I-Carbon Steel Rebar
Njengoba igama limelela, yenziwe ngensimbi ye-carbon futhi yaziwa kakhulu ngokuthi Ibha Emnyama ngenxa yombala wekhabhoni. I-drawback eyinhloko yale rebar ukuthi iyagqwala, okulimaza ukhonkolo nesakhiwo. Isilinganiso samandla e-tensile esihlanganiswe nevelu senza ibha emnyama ibe yinye yezinketho ezinhle kakhulu.
l 3. I-Epoxy-Coated Rebar
I-rebar eboshwe nge-epoxy iyibha emnyama enejazi le-epoxy. Inamandla afanayo okuqina, kodwa imelana ngokuphindwe izikhathi ezingu-70 kuya kwezingu-1,700 ngaphezu kokugqwala. Kodwa-ke, i-epoxy coating ithambile ngendlela emangalisayo. Umonakalo omkhulu enamathela, ukuncipha ukumelana nokugqwala.
l 4. Ibha Elivundisiwe
I-rebar enamathangi imelana ngokuphindwe kamashumi amane kuphela ekugqwaleni kune-rebar emnyama, kodwa kunzima kakhulu ukulimaza ukumbozwa kwe-rebar eyenziwe nguthayela. Ngaleso sici, inenani eliningi kune-rebar eboshwe nge-epoxy. Kodwa-ke, ibiza cishe ngo-40% kune-rebar ehlanganiswe ne-epoxy.
l 5. I-Glass-Fiber-Reinforced-Polymer (GFRP)
I-GFRP yenziwe nge-carbon fiber. Njengoba yenziwe nge-fiber, ukugoba akuvunyelwe. Iyakwazi ukumelana nokugqwala futhi iyabiza uma iqhathaniswa namanye ama-rebar.
l 6. Ibha yensimbi engagqwali
I-stainless steel rebar iyibha yokuqinisa ebiza kakhulu etholakalayo, cishe izikhathi eziyisishagalombili kunentengo ye-epoxy-coated rebar. Futhi iyi-rebar engcono kakhulu etholakalayo kumaphrojekthi amaningi. Nokho, ukusebenzisa insimbi engagqwali kuzo zonke izimo kodwa ehluke kakhulu ngokuvamile kuvame ukweqisa. Kodwa, kulabo abanesizathu sokuyisebenzisa, insimbi engagqwali iphinda izikhathi eziyi-1,500 ukumelana nokugqwala kunebha emnyama; Imelana kakhulu nomonakalo kunanoma iziphi ezinye izinhlobo ezimelana nokugqwala noma ezivimbela ukugqwala noma i-rebar; futhi ingagotshwa ensimini.
