Muva nje ngentuthuko esheshayo yokwakhiwa kobunjiniyela bemigwaqo emikhulu, ubuchwepheshe bezakhiwo zekhonkrithi ye-asphalt buthuthuke ngokushesha futhi bufinyelele inani elikhulu lempumelelo yobuchwepheshe evuthiwe nehle kakhulu.
Njengamanje, ukhonkolo we-asphalt usetshenziswe kabanzi emkhakheni wokwakhiwa kwemigwaqo emikhulu, oqokomisa isikhundla sawo esibalulekile kumaphrojekthi okwakha. Kodwa-ke, ngenkathi sibona impumelelo eyenziwe, kufanele futhi sazi ukuthi izinkinga zokuguqulwa kanye nomonakalo wendlela yomgwaqo we-asphalt concrete ziya ngokuya ziba zimbi kakhulu.
Imigodi emikhulu kanye nokuguquguquka komgwaqo kungaba nomthelela omkhulu ekuphepheni kokushayela.Intambo eqoshiwe ye-basalt fiberuhlobo olusha lwezinto zefayibha, ezinezakhiwo zalo ezihlukile zemishini, ukuzinza okuhle, kanye nesilinganiso sokusebenza esibizayo, okwenza kube yinto enhle kakhulu yokuqinisa ukhonkolo.
Ukusebenza kweumucu oqoshiwe we-basalt fiber
Intambo eqoshiwe ye-basalt fiber iyi-fiber yamaminerali engaphili enobude obungaphansi kwama-50mm, esikwa kusuka ku-substrate ye-basalt fiber ehambisanayo futhi ingasakazwa ngokulinganayo kukhonkrithi.
Intambo eqoshiwe ye-basalt fiberinezakhiwo ezinhle kakhulu njengamandla aphezulu okudonsa e-axial kanye ne-modulus ephezulu, enamandla okudonsa angu-2250-2550MPa kanye ne-modulus enwebekayo engaphezu kuka-78 GPa; I-basalt emfushane inokumelana okuhle kakhulu nokushisa okuphezulu, okuvumela ukuthi isebenze ngokuqhubekayo ebangeni eliphakathi kuka--269 kuya ku-650 degrees Celsius; Inokumelana okuphezulu kokugqwala kanye nokuqina kwamakhemikhali ezindaweni ezigqwalisayo (izixazululo ze-asidi, i-alkali, usawoti), futhi ingagcina ukumelana okuphezulu kokugqwala kwe-alkaline ezixazululweni ze-alkaline ezigcwele kanye nesamente kanye nezinye izindawo ze-alkaline. Izinga lokugcina lamandla okuphuka kwentambo eyodwa likhulu kuno-75%; Intambo eqoshiwe ye-basalt fiber ingahambisana nezinamathiselo ezingaphili, ngezinga lokumunca umswakama elingaphansi kuka-1% kanye namandla okumunca angashintshi ngokuhamba kwesikhathi, okufakazela ukuzinza kwazo kwezinto, isikhathi eside sokuphila, kanye nokuhambisana kwemvelo ngesikhathi sokusetshenziswa; Ngaphezu kwalokho, intambo eqoshiwe ye-basalt fiber nayo inokusebenza okuhle kokushisa, ukuhlunga kwezinga lokushisa eliphezulu, ukumelana nemisebe, kanye nokuvuleka okuhle kwamagagasi. Ithebula 1 libonisa izinkomba zokusebenza kobuchwepheshe bentambo eqoshiwe ye-basalt fiber.
Ukuhlaziywa kwesicelo sentambo eqoshiwe ye-basalt fiber epavement yekhonkrithi ye-asphalt
Intambo eqoshiwe ye-basalt fiberIkhonkrithi ye-asphalt yenziwa kakhulu ngokufaka umucu oqoshiwe we-basalt fiber ngesilinganiso esifanele sezinto zekhonkrithi ye-asphalt zemigwaqo, bese uyixuba ngaphansi kwesilinganiso esiqinile sokuxuba, izinga lokushisa, umswakama, isikhathi sokuxuba, nezinye izimo.
Njengoba kwaziwa kahle, ngaphezu kwemicu ye-basalt, izinto zefayibha ezifana nemicu ye-polyester, imicu yokhuni, kanye nemicu yoboya bamaminerali zingasetshenziswa njengezinto zokuqinisa ekuqiniseni ikhonkrithi ye-asphalt. Kodwa-ke, ukusetshenziswa kwale micu iminyaka eminingi kubonisa ukuthi kunezinkinga ezithile lapho isetshenziswa njengezinto zokuqinisa kukhonkrithi ye-asphalt, njengokusebenza okubuthakathaka kokulwa nokuguga, umphumela wokuqinisa obuthakathaka, kanye nokulimaza impilo yabantu.
Ukuvela kwentambo eqoshiwe ye-basalt fibre kugcwalise igebe kokubili ezintweni nasezindleleni, kwaxazulula ngempumelelo izinkinga ezikhona endleleni ekhona yekhonkrithi ye-asphalt futhi kwadlala indima enkulu ekuyikhuthazeni. Indima yayo endleleni ekhona yekhonkrithi ye-asphalt ibonakala kulezi zici ezilandelayo:
(1) Intambo eqoshiwe ye-basalt fiber, ngenxa yokumuncwa kwayo amanzi amancane, ingafakwa kukhonkrithi ye-asphalt ukuze kwandiswe ubukhulu bendlela ye-asphalt, okwenza kube lula ukuqhekeka nokungazinzi komgwaqo ngenxa yokumuncwa kwamanzi nokwanda kwawo.
(2) Intambo eqoshiwe ye-basalt fiber ayikwazi nje ukusebenzisa i-modulus yayo ephezulu kanye namandla okuthamba, njengezintambo zensimbi, ukuvimbela ukwanda okwengeziwe kwemifantu ngemva kokuvela kwayo, kodwa futhi nokugwema izimo lapho izintambo zensimbi zivame ukugoqeka ngesikhathi sokuxuba, okungafaneleki ukupompa, futhi inqubo yokwakha iyinkimbinkimbi.
(3) I-basalt fiber eqoshiwe iyi-nitric acid fiber ejwayelekile, ehambisana kahle. Ngenxa yokuthi ubuso bayo buyathambile, ingamunca i-asphalt, ukuze i-basalt fiber isatshalaliswe ngokulinganayo kukhonkrithi, yakha ungqimba oluqinile lwesixhumi, ukuze kuthuthukiswe ukumelana nokuguga kanye nokuqina kwendlela yekhonkrithi ye-asphalt.
(4) Intambo eqoshiwe ye-basalt fiber inokumelana okuhle kakhulu nokushisa kanye nokucindezeleka. Izinga layo lokushisa lokusebenza liphakathi kuka-270 kuya ku-651 degrees Celsius, futhi ingagcina ukuqina ezindaweni ezishisa kakhulu. Ingavimbela futhi ukushelela kwezinto zamaminerali kukhonkrithi, ithuthukise ukuqina kwayo, futhi ithuthukise ngempumelelo ukumelana nokushisa okuphezulu kokucindezeleka kwe-asphalt concrete pavement.
Ngaphezu kwalokho, umucu oqoshiwe we-basalt fiber nawo unokumelana okuhle kakhulu nokushisa okuphansi, ikakhulukazi ekuthuthukiseni ukumelana kokuqhekeka komgwaqo wekhonkrithi ye-asphalt nokushisa okuphansi.
Ukwengeza umucu oqoshiwe we-basalt fiber kukhonkrithi ye-asphalt kungathuthukisa ukumelana nokushayisana, ukumelana nokugoba, kanye nezakhiwo zemishini zendlela yomgwaqo ye-asphalt concrete. Ngokukhethekile, umucu oqoshiwe we-basalt fiber udlala indima ebalulekile endleleni yomgwaqo ye-asphalt concrete, njengokumelana nokuqhekeka, ukungangeni kwamanzi, ukuqina, ukumelana nokushayisana, amandla okuthamba, kanye nobuhle.
Izindlela zokwakha kanye nezinyathelo zokuphephaumucu oqoshiwe we-basalt fiberukhonkolo we-asphalt
(1) Izinga lokushisa lokwakha
Izinga lokushisa lokwakhiwa kwekhonkrithi ye-asphalt eqoshiwe ye-basalt fiber akufanele libe phansi kakhulu, ngoba i-strand eqoshiwe ye-basalt fiber izothuthukisa i-viscosity ye-asphalt. Ngakho-ke, izinga lokushisa lokwakhiwa kwekhonkrithi ye-asphalt ye-basalt emfushane kufanele libe phezulu kunekhonkrithi evamile ye-asphalt, ngaphandle kwalokho kuzoba lula ukubangela ukuxubana okungalingani.
(2) Ukulawulwa kwekhwalithi yokwakha
Ukulawulwa kwekhwalithi yokwakha kwekhonkrithi ye-asphalt eqoshiwe ye-basalt fiber kufanele kunake ukulawulwa kwekhwalithi yenqubo yokuhlola, yokulinganisa, kanye nokuxuba kwento ngayinye ekhonkrithini ye-basalt fiber eqoshiwe ye-asphalt.
Ekwakhiweni kwangempela, amanani ahlukene e-basalt emfushane kufanele akhethwe ngaphakathi kobubanzi obufanele ngokuya ngezidingo zobunjiniyela. Ngenxa yokuthi umucu oqoshiwe we-basalt fiber ngokwawo awuhlangani nezinye izingxenye zekhonkrithi kanye nezingxube, okuqukethwe kwe-fiber ngeke kushintshe isilinganiso senhlanganisela yekhonkrithi yokuqala.
Ngesikhathi sokwakha, ikhwalithi yezinto ezahlukahlukene kukhonkolo eqiniswe ngentambo ye-basalt fibre eqoshiwe kufanele ibalwe futhi inqunywe ngokusekelwe kusilinganiso senhlanganisela yokwakha kanye nenani lokuxuba kanye. U-He Junyong, uTian Chengyu, nabanye bafunde isilinganiso senhlanganisela esifanele sekhonkolo eqiniswe ngentambo ye-basalt ngokusebenzisa izindlela zokuhlola zokuklama eziqondile. Izici ezinhlanu, okuhlanganisa okuqukethwe yi-fiber, isilinganiso se-samente yamanzi, okuqukethwe komlotha ompunga, isilinganiso sesihlabathi, kanye nokusetshenziswa kwamanzi kweyunithi, kwakhethwa njengezici eziyinhloko ekuhlolweni.
Ithebula 2 libonisa izilinganiso ezingcono kakhulu zekhonkrithi eqinisiwe ye-basalt fiber etholwe ngokuhlolwa.
Ukuhlolwa kubonise ukuthi uma isilinganiso sokuqukethwe kwentambo eqoshiwe ye-basalt fiber, kulapho umphumela wokumelana nokuqhekeka kwekhonkrithi uba ngcono, ku-1.2kg/m³ Ngaphakathi kobubanzi obuthile, amandla okucindezela ekhonkrithi ayanda ngokwanda kokuqukethwe kwentambo eqoshiwe ye-basalt fiber, bese incipha futhi ikhuphuke ngesimo esigobile.
(3) Ukulandelana kokudla kanye nendlela
Enqubweni yokuxubaumucu oqoshiwe we-basalt fiberUma usebenzisa ukhonkolo we-asphalt, ukulandelana kokudla komucu oqoshiwe we-basalt fiber kufanele kucatshangelwe. Uma usebenzisa, engeza umucu oqoshiwe we-basalt fiber kanye nama-aggregates njengesihlabathi netshe. Kungcono ukwengeza isihlabathi netshe ngesikhathi esisodwa. Faka umucu oqoshiwe we-basalt fiber esihlabathini, bese ufaka i-asphalt nengxube emanzi bese uvuselela.
Indlela yokwengeza ifayibha ingahlukaniswa ngokwengeza ngesandla kanye nokwengeza okuzenzakalelayo. Ukwengeza okwenziwayo kubhekisela ekufakeni ngesandla intambo eqoshiwe yefayibha ye-basalt eye yalinganiswa ngemva kokungezwa kwama-aggregates ashisayo ethangini lokuxuba. Kodwa-ke, izinkinga zayo ukuqina okukhulu kwabasebenzi, ukufana okuphansi kokuxuba, kanye nesidingo sokwandisa isikhathi sokuxuba ngokwesimo sangempela ukuqinisekisa ukuthi ifayibha ihlakazeka ngokulinganayo kukhonkrithi ye-asphalt.
Ukondla okuzenzakalelayo kubhekisela ekusetshenzisweni kwe-basalt fiber feeder ukukala ngokuzenzakalelayo inani lezinto ezizongezwa bese zifakwa ebhodweni lokuxuba kanye ne-hot aggregate ye-mixer. I-fiber feeder inezinzuzo ezifana nokulinganisa okuzenzakalelayo, ukuchoboza ngaphambi kokusebenzisa, kanye nendlela yokudlulisa umoya, futhi inemisebenzi elula, esheshayo, nenembile yokwengeza i-fiber. Ezisetshenzisweni ezisebenzayo, izindlela ezifanele kufanele zikhethwe ngokusekelwe esimweni sangempela sokwakha.
(4) Izinyathelo zokuphepha zokugandaya
Okokuqala, kufanele kuqashelwe ukuhlanzeka kwendawo yokugandaya; Bese ufudumeza ipuleti loku-ayina le-paver kusengaphambili libe ngama-degree Celsius angu-120, ngenkathi unaka isivinini sokugandaya, ulilawula cishe ngamamitha amathathu kuya kwamane ngomzuzu; Isilinganiso sokukhululeka kufanele sinqunywe ngokusekelwe ekubekweni kwangempela kwephrojekthi; Izinga lokushisa lokugandaya kufanele ligcinwe kuma-degree Celsius angu-160.
(5) Ukwakha nokulungisa
Ukhonkolo oxutshweumucu oqoshiwe we-basalt fiberakufanele kube nezidingo ezikhethekile ngesikhathi sokubumba, ngaphandle kokuqinisekisa ukuqiniswa okuphelele kwekhonkrithi ye-asphalt. Kufanele iqiniswe ngangokunokwenzeka ngaphansi kwezimo zokushisa okuphezulu.
Izibonelo zokusetshenziswaumucu oqoshiwe we-basalt fiberendaweni egandayiwe ngekhonkrithi ye-asphalt
Umzila Wokuxhumanisa iHaining Interchange weJiashao Expressway (onesakhiwo sendlela esinophahla lwesisekelo samatshe aqoshiwe esingamasentimitha angu-20 kanye nokhonkolo we-asphalt ongu-+6cm (AC-20C) kanye nokhonkolo we-asphalt ongu-+4cm (AC-16C)) kanye noMgwaqo Wesifundazwe ongu-08 kuvunyiwe yiHaining Municipal Science and Technology Bureau. Ukuze kuhlolwe izindlela zesayensi nezisebenzayo zokuthuthukisa ukumelana komgwaqo ne-ruts, kuqinisekiswe ukuphepha nokushelela komgwaqo omkhulu, futhi kulwelwe ukwelapha izifo ze-ruts ngendlela elula nelula, ngesikhathi esifushane sokwakha kanye nezindleko zokulungisa eziphansi, ukuhlolwa kokwelapha kwenziwa kusetshenziswa ukhonkolo we-asphalt oguquliwe ngentambo eqoshiwe ye-basalt fiber.
Ngokombono womphumela wokwelashwa, ukwengeza umucu oqoshiwe we-basalt fiber kuthuthukisa kakhulu ukuzinza kwezinga lokushisa eliphezulu kwendlela yomgwaqo we-asphalt concrete, kuthuthukisa ukuqina kwendlela yomgwaqo, kwandisa isikhathi sayo sokusebenza, futhi kunciphisa ukuvela kwezindlela zesibili, okunikeza isiqinisekiso esinamandla sokuphepha kokushayela.
Isiphetho
Intambo eqoshiwe ye-basalt fiber, ngezakhiwo zazo ezihlukile zemishini, ukuzinza okuhle, kanye nezindleko eziphansi, kuzenza zibe yizinto ezinhle kakhulu zokuqinisa ukhonkolo. Amathemba okusetshenziswa kokhonkolo we-asphalt oqiniswe ngentambo ye-basalt oqoshiwe abanzi kakhulu. Zombili izinzuzo zezomnotho nezenhlalo zizofeza isimo esizuzisa wonke umuntu, futhi zizoba ngenye yezinto zokwakha eziyinhloko emkhakheni wokwakhiwa komgwaqo omkhulu esikhathini esizayo.
I-Shanghai Orisen New Material Technology Co., Ltd
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Email: grahamjin@jhcomposites.com
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Isikhathi sokuthunyelwe: Mashi-13-2024