Kongiri Yakagadzirwa Kubva Kudzokororwa Matairi Rubha Inosangana Nekusimba Kwekuvaka
Kongiri Yakagadzirwa Kubva Kudzokororwa Matare Rubha Inosangana Nesimba Mayero
Ingangove nyaya yakanaka yenhau kuchengetedza uye denderedzwa hupfumi yakabuda kubva kuMelbourne uko injini vakatsemura nzira nyowani yekutsiva ese akajairwa aggregates anowanzo shandiswa mukongiri nerabha. Izvi zvakaunganidzwa zvechinyakare zvakaita sedombo rakapwanyika nematombo zvakatsiviwa nerabha yakadzokororwa kubva kumatayi.
Mutungamiriri Munyori uye PhD muongorori, Mohammad Momeen UI Islam, akati,
“Munguva pfupi yadarika, takagadzira hunyanzvi hunotibvumira kugadzira giredhi kongiri isingaremi kuitira kutsiviwa kwakazara kwechinyakare chakakora chakaunganidzwa nemarara erabha aggregates."
Kusvikira munguva ichangopfuura, kuedza kwese kwakaitwa kutsiva zvinhu mukongiri nerabha kwakaguma nemakongiri asina simba asingasviki zvinodiwa zvekuvaka. Nekudaro, mainjiniya kuRoyal Institute of Technology (RMIT) University mu Ositireriya vachangobva kubudirira kutsiva 100% yezvakajairwa aggregates mukongiri, senge matombo uye dombo rakapwanyika nerabha kubva kumatairi akadzokororwa.
Yavo yazvino kudzidza yakafumura nzira yekugadzira yekongiri yezvimiro, isingaremi asi yakasimba umo maaggregates akakomba akaiswa. yakatsiviwa zvachose nerabha.
The kongiri inobuda yakasimba kudarika kongiri yenguva dzose sezvo rubber particles mukati mayo inobvumira kukotama pasi pekumanikidzwa pane kuputsa.
Mohammad Momeen UI Islam, akati,
"Takaratidza kuti nenzira yedu chaiyo yekukanda iyo makumi emakore-yaifungidzirwa kuganhurirwa pakushandisa zvidimbu zvakakura zverabha mukongiri zvino zvinogona kukundwa."
Sekureva kwechikwata, kongiri nyowani iyi inosangana nezviyero zvesimba zvinodikanwa nemirairo yekuvaka.
Zvinotendwa kuti iyi nyowani yakareruka inowirirana kwezvakatipoteredza kongiri ichapawo zvese zviri zviviri zvakatipoteredza nehupfumi. Iyi tire rabha-yakavakirwa kongiri ine mukana wekudzikisa zvakanyanya kugadzira uye mutengo wekutakura.
Sebhonasi, kongiri itsva iyi inogadzirisawo rimwe dambudziko rezvakatipoteredza rekuona kuti matayi anenge amboraswa sei.
Matai akashandiswa anogona kushandiswazve to some extent but most of the time vanongopedzisira vasiiwa mumarashi kana kutsva. Iyo nzira itsva yekugadzira kongiri inodzivirira matayi kutora nzvimbo munzvimbo dzinoraswa marara kana kuburitsa gasi rine muchetura mumhepo.
Muzvinafundo Jie Li, Chidzidzo-munyori-munyori uye Mutungamiriri weChikwata akati:
“Sezvo chikamu chikuru chekongiri yakaomesesa, kutsiva zvese izvi nerabha yakashandiswa yevhiri kunogona kuderedza zvakanyanya kudyiwa kwe. zviwanikwa uye kugadzirisa dambudziko guru rezvakatipoteredza rekuita nematai akashandiswa.”
Pfungwa yekutsiva iyo aggregate inowanikwa mukongiri nematairi erabha haisi itsva.
Masayendisiti ekare akaedza akakundikana. Vatsvakurudzi vepaRoyal Institute of Technology (RMIT) University muAustralia vakaisa kukundikana uku pasi pekubatana kusina kunaka nekuda kwekuoma kwerabha yevhiri. Iyi porosity inokonzeresa kuti pores murabha azadze nemvura kana kongiri yatanga kusanganiswa, zvisinei, kana kongiri yaiswa, mvura inobuda ichisiya isina chinhu parubha / simende interface.
Kugadzirisa dambudziko iri chikwata chemainjiniya chakaisa kongiri yakanyorova mumhando dzesimbi dzakakosha dzinoisa kumanikidza pane kongiri uye kudzvanya zvidimbu nemapores mukati mawo. Izvi zvinoguma nesamende iri nani yakasungirirwa kune 'preload' twumatayi.
Mohammad Momeen UI Islam, Munyori Mukuru uye PhD muongorori akati:
"Tekiniki iyi inosanganisira kushandisa ichangobva kugadzirwa mold yekumisikidza coarse rubber aggregate mukongiri nyowani inosimudzira kushanda kwechivakwa."
Iyi mhando nyowani yekongiri ichiri mudanho rekutanga asi yapedza kuyedza yakabudirira musangano timu iri kuongorora nekutsvaga nzira nyowani dzekusimbisa kongiri, ichiita kuti inyatsokodzera kushandiswa mukati. kuvaka zvirongwa.
Kunyange zvazvo kongiri itsva iyi ichiri mumatanho ekutanga, iri kuratidza zviratidzo zvevimbiso. Kongiri inogadzirwa uchishandisa matai erabha yakasimba kudarika kongiri yechinyakare, yakachipa kugadzira, uye inogadzirisa nyaya dzakawanda dzezvakatipoteredza dzakadai sekugadzirisazve matayi anenge amboshandiswa. Imwe tsvagiridzo inofanirwa kuitwa kutarisa kukodzera kwe zvirongwa zvekuvaka, asi zviratidzo zvekutanga zvinovimbisa.
