Ukusetshenziswa komlotha wempukane esisekelweni sendlela kugxile kakhulu ezicini ezimbili: izinto ezizinzile zomlotha wempukane (umlotha we-lime kanye nomlotha wempukane) kanye nezinto ezizinzile zomlotha wempukane we-simende. Lezi zinto ezimbili zihlanganiswe ngezindinganiso zikazwelonke, ubuchwepheshe buvuthiwe, futhi kunezindlela eziningi ezisebenzayo. Ukusetshenziswa komlotha wempukane ezindaweni zendlela ikakhulukazi ubuso obuxubene ne-asphalt kanye nobuso bekhonkrithi yesamente. Ucwaningo lukaJiao Hua waseChang'an University ku-thesis yakhe ye-master lubonisa ukuthi lapho umlotha wempukane uthatha indawo yawo wonke umpuphu we-ore engxubeni ye-asphalt ye-AC-16, unokumelana nokuqhekeka okuphansi kwezinga lokushisa kanye nokuqina okungcono kwezinga lokushisa eliphezulu kunalowo oxutshwe ne-ore powder. , ukuzinza kwamanzi kuthuthukisiwe kodwa umphumela awuvelele. UXie Jun, uWu Shaopeng, nabanye bafunde umphumela wokwelashwa komlotha wempukane kanye ne-coupling agent ekulimaleni komswakama kwengxube ye-asphalt. Ukuhlanganisa i-filler ne-coupling agent kanye nomlotha wempukane kubizwa ngokuthi i-composite fly ash modifier. Izakhiwo ze-composite fly ash modifier zazibonakala kakhulu ngokuskena i-electron microscopy kanye ne-Fourier transform infrared spectroscopy. Njengomgcwalisi, umphumela wayo ekuzweleni komswakama kwezingxube ze-asphalt uhlolwe ngokuhlolwa kwe-modulus yokuqina kwe-tensile engaqondile, i-static creep, kanye nokuhlolwa kokukhathala kwe-tensile engaqondile. Imiphumela ikhombisa ukuthi ingxube ye-asphalt ene-composite fly ash modifier inamandla aphezulu okuqina kwe-indirect kanye nesilinganiso samandla okuqina ngesikhathi seqhwa futhi inokuzwela okuhle kakhulu komswakama. Ngaphezu kwalokho, ingxube ye-asphalt eguquliwe ye-composite fly ash modifier ibonise i-modulus yokuqina engcono, ukumelana nokuguquguquka okuhlala njalo, kanye nokuphila kokukhathala ngemva kokwelashwa komonakalo othile womswakama. Isiphetho: I-composite fly ash modifier ingathuthukisa ngempumelelo ukuzwela komswakama kwengxube ye-asphalt.
Izimbobo zomlotha ophaphayo nazo zisetshenziswa kabanzi kwezobunjiniyela bemigwaqo, ikakhulukazi ezingxenyeni zomgwaqo eziyisisekelo senhlabathi ethambile. Ingasebenzisa ngokugcwele isisindo esincane somlotha ophaphayo ukunciphisa isisindo somlotha kanye nokucindezeleka okwengeziwe kwesisekelo senhlabathi ethambile, ngaleyo ndlela inciphise ukuhlala okuphelele futhi ithuthukise ukuqina komlotha. Ngokufanayo, ukugcwalisa umlotha ophaphayo ngenhlabathi egcwalisa kakhulu ebhulohweni kungathuthukisa inkinga yokugxuma kwebhulohweni okubangelwa ukuhlala okubangelwa isisindo somhlabathi ogcwalisa kakhulu ebhulohweni. ULiu Tiejun wafunda izakhiwo zomshini zomlotha ophaphayo osetshenziswa njengesigcwalisi somlotha futhi wafinyelela eziphethweni ezilandelayo: ubuningi bomlotha ophaphayo bubonise ukuthambekela kokukhula kuqala bese kwehla ngokwanda kokuqukethwe komswakama, kanti ubuningi bomswakama owomile obuphezulu babungu-19%; I-permeability coefficient yomlotha wamalahle iyancipha kakhulu ngokwanda kobuningi bomswakama. Lapho ubuningi bomlotha ophaphayo obuwomile bungaphansi kuka-1.35g/cm3, ubuningi bomlotha obuwomile cishe abunawo umthelela ku-permeability yawo; Ukuhlangana komlotha wempukane kuyanda ngokuqukethwe kwamanzi Lapho okuqukethwe komswakama komlotha wempukane kuyanda futhi kwehla, futhi ukwehla kuhamba kancane lapho okuqukethwe komswakama kungaphansi kuka-26%, ngaphandle kwalokho kwehla ngokushesha; lapho okuqukethwe komswakama komlotha wempukane kukhuphuka ngo-1%, i-engeli yokungqubuzana kwangaphakathi iyancipha cishe ngo-0.25°; Ukuhlangana komlotha wamalahle kuyanda ngokuhambisana nokwanda kwezinga lokuxinana, kuyilapho i-engeli yokungqubuzana kwangaphakathi komlotha wempukane ikhula ngokuphawulekayo ngokwanda kwezinga lokuxinana; okuqukethwe komswakama komlotha wempukane Uma kusondela okuqukethwe komswakama okuphezulu noma uma kusondela u-100% wokuxinana, kulapho kuncipha ukwehla kokuxinana kanye ne-engeli yokungqubuzana kwangaphakathi ngokwanda kwezikhathi zokudlidliza, futhi kulula ukufinyelela esimweni esizinzile esigabeni sokuqala sokudlidliza. UChen Yunyong noGao Liang nabo benze izivivinyo zemodeli yangaphakathi ezinqabeni zomlotha wempukane eziqinisiwe. Ngokomgomo wokufana, la madoda amabili anciphisa umngcele wangempela ngesilinganiso esingu-1:8 futhi asebenzisa i-bidirectional geogrid njengezinto zokuqinisa, futhi enza ucwaningo lokuhlola ngokucindezeleka kanye nobunzima bomngcele oqinisiwe womlotha wempukane. Imiphumela ikhombisa ukuthi ukuhlala okungalingani kwe-fly ash embankment kungancishiswa kakhulu ngokuqinisa i-geogrid, futhi amandla okuthwala i-embankment angathuthukiswa kakhulu.
Umthombo wokuqukethwe: I-Fly Ash Industry Alliance
Isikhathi sokuthunyelwe: Julayi-10-2023