ʻIkepili o Rebar
ʻO kēia pā kila deformed he pā kila hoʻoikaika maʻamau / i hoʻohana ʻia i loko o ka sima hoʻoikaika a me nā hale pōhaku hoʻoikaika. Hana ʻia ia mai ke kila palupalu a hāʻawi ʻia i nā iwi ʻaoʻao no ka hoʻopili maikaʻi ʻana i ka sima. ʻO ka deformation o nā iwi ʻaoʻao ma muli o ke kuleana o nā iwi ʻaoʻao, a ʻoi aku ka hiki o ka sima ke hoʻopaʻa, hiki ke kū i nā ikaika o waho. ʻO ke kila kila deformed he koʻokoʻo hao, he kila hoʻoikaika maʻemaʻe hiki ke hoʻopili ʻia, a hiki ke hoʻohana ʻia no nā ʻupena kila. ʻO ke ʻano o nā iwi transverse he spiral, herringbone, ʻekolu ʻano crescent. ʻO ke anawaena inoa o ke kila kila hoʻoikaika deformed e pili ana i ke anawaena inoa o ke kaʻa pōʻai o ka ʻāpana like. ʻO ka sima hoʻoikaika i ke kaumaha tensile nui.
Nā kikoʻī o ka Rebar
| HRB335 | ʻAno kemika | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.0-1.6 | 0.4-0.8 | 0.045 Max. | 0.045 Max. | ||||||
| Waiwai Mīkini | Ikaika hāʻawi | Ikaika tensile | Hoʻolōʻihi | |||||||
| ≥335 Mpa | ≥455 Mpa | 17% | ||||||||
| HRB400 | ʻAno kemika | C | Mn | Si | S | P | ||||
| 0.17-0.25 | 1.2-1.6 | 0.2-0.8 | 0.045 Max | 0.045 Max | ||||||
| Waiwai Mīkini | Ikaika hāʻawi | Ikaika tensile | Hoʻolōʻihi | |||||||
| ≥400 Mpa | ≥540 Mpa | 16% | ||||||||
| HRB500 | ʻAno kemika | C | Mn | Si | S | P | ||||
| 0.25 Max | 1.6 Max | 0.8 Max | 0.045 Max. | 0.045 Max | ||||||
| Waiwai Mīkini | Ikaika hāʻawi | Ikaika tensile | Hoʻolōʻihi | |||||||
| ≥500 Mpa | ≥630 Mpa | 15% | ||||||||
Nā ʻAno o nā Rebars
Ma muli o ke ʻano o ka mea i hoʻohana ʻia no ka hana ʻana o ka rebar, ʻokoʻa nā ʻano rebars
l 1. Paʻa ʻEulopa
Hana ʻia ka rebar ʻEulopa i ka manganese, ka mea e pelu maʻalahi ai iā lākou. ʻAʻole kūpono lākou no ka hoʻohana ʻana ma nā wahi i maʻalahi i nā kūlana ʻino a i ʻole nā hopena honua, e like me nā ōlaʻi, nā makani ʻino, a i ʻole nā torno. He haʻahaʻa ke kumukūʻai o kēia rebar.
l 2. Paʻa kila kalapona
E like me ka inoa e hōʻike nei, ua hana ʻia ia me ke kila kalapona a ua ʻike nui ʻia ʻo Black Bar ma muli o ke kala kalapona. ʻO ka hemahema nui o kēia rebar, ʻo ia ka pala, kahi e hoʻopilikia maikaʻi ʻole ai i ka sima a me ke ʻano. ʻO ka lakio ikaika tensile i hui pū ʻia me ka waiwai e hoʻolilo i ka rebar ʻeleʻele i kekahi o nā koho maikaʻi loa.
l 3. Paʻa hao i uhi ʻia me ka epoxy
ʻO ka rebar i uhi ʻia me ka epoxy he rebar ʻeleʻele me kahi ʻaʻahu epoxy. Loaʻa iā ia ka ikaika tensile like, akā he 70 a 1,700 mau manawa ʻoi aku ka pale ʻana i ka pala. Eia nō naʻe, he palupalu loa ka uhi epoxy. ʻO ka nui o ka pōʻino i ka uhi, ʻo ka emi ʻana o ke kūpaʻa i ka pala.
l 4. Paʻa hao i hoʻopili ʻia
He kanahā wale nō manawa ʻoi aku ka paʻakikī o ke kūpaʻa ʻana o ka rebar galvanized i ka pala ma mua o ka rebar ʻeleʻele, akā ʻoi aku ka paʻakikī o ka hōʻino ʻana i ka uhi o ka rebar galvanized. Ma ia ʻano, ʻoi aku ka waiwai ma mua o ka rebar i uhi ʻia me ka epoxy. Eia nō naʻe, ʻoi aku ke kumukūʻai ma kahi o 40% ma mua o ka rebar i uhi ʻia me ka epoxy.
l 5. Polymer i hoʻoikaika ʻia me ke aniani (GFRP)
Hana ʻia ʻo GFRP me ke olonā kalapona. Ma muli o ka hana ʻia ʻana me ke olonā, ʻaʻole ʻae ʻia ke kulou ʻana. He kūpaʻa loa ia i ka pala a he pipiʻi ke hoʻohālikelike ʻia me nā rebars ʻē aʻe.
l 6. Paʻa kila kila
ʻO ke kila kila kila ka mea hoʻoikaika pipiʻi loa i loaʻa, ma kahi o ʻewalu manawa ke kumukūʻai o ke kila i uhi ʻia me ka epoxy. ʻO ia nō hoʻi ka kila kila maikaʻi loa i loaʻa no ka hapa nui o nā papahana. Eia nō naʻe, ʻo ka hoʻohana ʻana i ke kila kila ma nā kūlana āpau koe wale nō ka mea kū hoʻokahi loa he hana nui loa ia. Akā, no ka poʻe i loaʻa ke kumu e hoʻohana ai, ʻoi aku ka paʻa o ke kila kila kila i ka palaho ma mua o ka ʻeleʻele; ʻoi aku ka paʻa o ka hōʻino ma mua o nā ʻano ʻē aʻe a i ʻole ke kūpaʻa i ka palaho; a hiki ke kulou ʻia ma ke kahua.
