Kudzidza pamusoro pekuita kwekunamatira kwebasalt fiber yakasimbisa simenti zvinhu neBFRP tendons

Core inopesvedzera zvinhu zve bonding performance

1. Fiber vhoriyamu doping uye kureba

Kuwanda kwedoping ye Basalt shinda-pfupi-pfupi ine mhedzisiro yakakosha pakusimba kwekubatanidza, uye bvunzo inoratidza kuti vhoriyamu doping ye0.2% ine yakanakisa mhedzisiro yekubatanidza simba rekusimudzira, uye yakawandisa doping inogona kutungamira mukudzikira kwekuita nekuda kwefiber agglomeration.

Kureba kweFaibha (eg 6mm ne18mm) ine simba shoma pakusimba kwechisungo, asi mafiber mapfupi anoparadzirwa zviri nyore kuderedza kukanganisa kwechiso.

2. Simba kirasi yekongiri yakashandiswa zvakare

Kuwedzera giredhi resimba rekongiri yakadzokororwa (semuenzaniso, kubva kuC30 kusvika kuC40) inosimudzira kusimba kwechisungo pakati peB.Frp Kusimbisa uye iyo substrate, asi iyo inowedzera ishoma, uye iyo interface inotapukirwa ne brittle peeling kana giredhi resimba rakanyanyisa.

3. Interface kurapwa uye coupling agent

Sandblasting pamusoro pe BFRP kusimbisa kunogona kuwedzera roughness uye kunatsiridza mechanical kuruma simba; kuwedzera silane coupling agent inogona kukwirisa kemikari yekubatanidza pakati pefiber uye resin matrix uye kuderedza kutsvedza kwemukati.

Miedzo uye nzira dzekunamatira zvinhu

1. Center kudhonza-kunze bvunzo

Iyo bond-slip curve yakadzidzwa kuburikidza neiyo pullout bvunzo, uye zvakaonekwa kuti bond kukuvara kwemaitiro ainyanya kudhonza tendon kana kupatsanura kongiri. Kuwedzera kwe basalt fibers inogona kunonoka brittle kukuvara kwekongiri uye kuwedzera ductility.

Iyo yakajairika bond simba renji ndeye 6-12 MPa, uye iyo chaiyo kukosha inokanganiswa nefiber dosage, yekusimbisa dhayamita (semuenzaniso, 16 mm) uye interface yekurapa maitiro.

2. Bond stress kugovera modhi

Kushungurudzika kwechisungo kunogoverwa kusina mutsara pamwe chete nehurefu hwekusimbisa, uye kushushikana kwepamusoro kunoiswa pamagumo ekurodha. Iyo theoretical modhi inoda kufunga nezve crack yekuwedzera kuramba uye interface friction mhedzisiro yefiber-yakasimbiswa kongiri.

Mabhenefiti ekushandisa uye makesi einjiniya

1. Corrosion resistance uye durability

BFRP reinforcement inochengeta zvinopfuura 90% yesimba rayo rechisungo munzvimbo dze chloride ion erosion (semuenzaniso, marine engineering), iri nani zvakanyanya kupfuura simbi nefiberglass yekusimbisa mbariro.

Nyaya iripo: Qingdao Cross-Sea Bridge inotora BFRP yekusimbisa kutsiva simbi yekusimbisa, uye hupenyu hwayo hwakawedzerwa kusvika makore anopfuura zana.

2. Huremu uye Seismic Performance

Iyo density yeBFRP yekusimbisa ingori 1/4 yeiyo yesimbi, iyo inogona kushandiswa kusimbisa kongiri matanda kudzikisa chimiro uremu ne20% -30%, uye panguva imwechete inosimudzira seismic simba rekushandisa simba nekuputira iyo yekusimbisa.

Matambudziko Aripo uye Mafambiro Ekugadzirisa

1. Interfacial bond kusimbisa

Dambudziko riripo: Kubatana pakati pemafiber uye simende matrix kunowanzo kupeuka nekuda kwekunetsekana, uye nano-modified interfacial agents (semuenzaniso, nano-SiO₂ doped) inoda kuvandudzwa kuti iwedzere makemikari bonding.

2. Kushanda kwenguva refu uye kumira

Kushaikwa kwedata renguva refu yekudonha pasi pekushisa kwepamusoro uye hunyoro hwepamusoro (semuenzaniso, anopfuura makore gumi), kukurumidza kuchembera bvunzo dzinodiwa kuti uone; dhizaini haisati yafanana nenyika dzese, uye kunyangwe China yakaburitsa iyo GB/T 38143-2019 standard, iyo dhizaini dhizaini ichiri kuda kuvandudzwa.

3. Multi-scale yekubatana dhizaini

Mune ramangwana, tinogona kuongorora tekinoroji yakasanganiswa ye BFRP kusimbisa uye simbi faibha / kabhoni faibha yekuvaka gradient macomposites uye kuenzanisa simba uye ductility.

Remangwana Rekutsvaga Mazano  

1. Hungwaru kutarisa uye dhijitari modhi

Yakamisikidzwa fiber optic sensors muBFRP tendons, chaiyo-nguva yekutarisisa yebhondi interface dhizaini uye kuputika kwekukura, yakasanganiswa neinogumira chinhu simulation kukwirisa dhizaini.

2. Low-carbon gadziriro nzira

Deredza iyo basalt fiber kunyunguduka uye kudhirowa tembiricha (ikozvino 1400-1500 ℃), kuvandudza yakaderera-tembiricha kurapa resin kuderedza kushandiswa kwesimba.

3. Kushandiswa zvakanaka kwezvinhu zvakashandiswa patsva

Sanganisa iyo yakadzokororwa aggregate uye basalt fiber nemarara ekuvaka kusimudzira "zvese-zvinovandudzwa" girinhi zvivakwa zvekuvaka uye kuderedza kushandiswa kwezviwanikwa.

Summary

Tsvagiridzo pamusoro pekuita kwekubatana kwebasalt fiber-yakasimbiswa simenti zvinhu uye BFRP tendon yakawana mhedzisiro yenhanho-ne-nhanho, asi iyo yakakura-chiyero chikumbiro ichiri kufanira kutyora nepakati pemabhodhoro ekugadzirisa kwemukati, kusimba kwekugara kwenguva refu uye dhizaini yakajairwa. Mune ramangwana, kuburikidza nemhando dzakasiyana-siyana dzekuyambuka-innovation (semuenzaniso, zvinhu zvakangwara, yakaderera-kabhoni maitiro), zvinotarisirwa kuona mabhindauko etekinoroji muminda yeinjiniya yegungwa uye kusimba kwekudengenyeka kwepasi, uye kubatsira kusimudzira zvivakwa zvinogara.