Tirohanga Whānui o te Rebar
He mea hanga tēnei paera rino kua whakapōturitia hei paera whakakaha rino noa/ e whakamahia ana i roto i te raima whakakaha me ngā hanganga kohatu whakakaha. He mea hanga mai i te rino ngawari, ā, he rara hei āwhina i te piri pai ki te raima. Nā te mahi a ngā rara, ka nui ake te kaha o te raima ki te hono, ā, ka pai ake te tu atu ki ngā kaha o waho. He tokotoko rino te paera rino whakapōturitia, he paera rino mātotoru ka taea te whakarewa, ā, ka taea hoki te whakamahi mō ngā mata maitai. Ko te āhua o ngā rara whakawhiti he porowhita, he wheua hereni, he āhua marama-toru. Ko te diameter ingoa o te paera rino whakakaha kua whakapōturitia e rite ana ki te diameter ingoa o te paera porowhita o te wāhanga whakawhiti ōrite. Ko te raima whakakaha i roto i te ahotea kume matua.
Whakatakotoranga o te Rebar
| HRB335 | Te hanganga matū | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.0-1.6 | 0.4-0.8 | 0.045 Teitei | 0.045 Teitei | ||||||
| Āhuatanga Mīhini | Te kaha o te hua | Te kaha o te kume | Te whakaroa | |||||||
| ≥335 Mpa | ≥455 Mpa | 17% | ||||||||
| HRB400 | Te hanganga matū | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.2-1.6 | 0.2-0.8 | 0.045 Teitei | 0.045 Teitei | ||||||
| Āhuatanga Mīhini | Te kaha o te hua | Te kaha o te kume | Te whakaroa | |||||||
| ≥400 Mpa | ≥540 Mpa | 16% | ||||||||
| HRB500 | Te hanganga matū | C | Mn | Si | S | P | ||||
| 0.25 Teitei | 1.6 Teitei | 0.8 Teitei | 0.045 Teitei | 0.045 Teitei | ||||||
| Āhuatanga Mīhini | Te kaha o te hua | Te kaha o te kume | Te whakaroa | |||||||
| ≥500 Mpa | ≥630 Mpa | 15% | ||||||||
Ngā momo parepare
I runga i te momo rauemi e whakamahia ana mō te hanga rebar, he rerekē ngā momo rebar
l 1. Pāreti Pākehā
He konupora te mea hanga o te rino Pākehā, ā, ka ngāwari te piko. Kāore e pai mō te whakamahi i ngā wāhi e pāngia ana e ngā āhuatanga huarere kino, ngā pānga whenua rānei, pērā i ngā rū whenua, ngā awhiowhio, ngā awhiowhio rānei. He iti te utu mō tēnei rino.
l 2. Paerewa maitai waro
E ai ki te ingoa, he mea hanga ki te maitai waro, ā, e mōhiotia whānuitia ana ko te Black Bar nā te tae waro. Ko te ngoikoretanga matua o tēnei rebar ko tōna waikura, ā, ka pā kino ki te raima me te hanganga. Nā te ōwehenga kaha kume me te uara e pai ai te rebar pango.
l 3. Paera Panipani-Epoxy
He rino pango te rino pania ki te epoxy, he paninga epoxy anō hoki. He rite tonu te kaha kume, engari he 70 ki te 1,700 ngā wā ka nui ake tōna ātete ki te waikura. Heoi anō, he tino ngāwari te paninga epoxy. Ka nui ake te kino o te paninga, ka iti ake te ātete ki te waikura.
l 4. He reera piauau
E whā tekau noa iho ngā wā ka kaha ake te ātete o te rino kōwiri ki te waikura i te rino pango, engari he uaua ake te pakaru i te paninga o te rino kōwiri. Nō reira, he nui ake tōna uara i te rino pania ki te epoxy. Heoi, tata ki te 40% te utu nui atu i te rino pania ki te epoxy.
5. Pūmua Whakakaha-Muka-Karāhe (GFRP)
He muka waro te mea hanga o te GFRP. Nā te mea he muka, kāore e whakaaetia te piko. He tino ātete ki te waikura, ā, he utu nui hoki ina whakaritea ki ētahi atu parepare.
l 6. Paerewa Kowiri tira
Ko te rino kowiri tira te paera whakapakari utu nui rawa atu e wātea ana, e waru ngā wā te utu o te rino pania ki te epoxy. Koinei hoki te rino pai rawa atu e wātea ana mō te nuinga o ngā kaupapa. Heoi, he nui rawa te whakamahi i te rino kowiri tira i ngā āhuatanga katoa engari ko te mea tino ahurei. Engari, mō te hunga he take hei whakamahi, he 1,500 ngā wā te ātete o te rino kowiri tira ki te waikura i te paera pango; he ātete ake ki te kino i tētahi atu momo rino ātete waikura, ātete waikura rānei; ā, ka taea te piko i te whenua.
