Ukusetyenziswa kothuthu lwempukane kwisiseko sepavumente kugxininiswe kakhulu kwimiba emibini: uthuthu lwempukane (ikalika kunye nothuthu lwempukane) izinto ezizinzileyo kunye nezixhobo ezizinzisiweyo zesamente. Ezi zinto zimbini zihlanganiswe kwimigangatho yelizwe, iteknoloji ikhulile, kwaye zininzi izicelo ezisebenzayo. Ukufakwa kothuthu lwempukane kumphezulu wepavumente ubukhulu becala ngumxube weasphalt nomphezulu wesamente. UJiao Hua wophando lweYunivesithi yaseChang'an kwithisisi yenkosi yakhe ubonisa ukuba xa uthuthu lwempukane luthatha indawo yawo wonke umgubo we-ore kumxube we-asphalt we-AC-16, inokumelana nokuqhekeka okuphantsi kobushushu obuphantsi kunye nozinzo olungcono lobushushu obuphezulu kunolo luxutywe nomgubo wentsimbi. , ukuzinza kwamanzi kuye kwaphuculwa kodwa umphumo awukho. U-Xie Jun, uWu Shaopeng, kunye nabanye bafunde isiphumo sonyango lomphezulu lwempukane uthuthu kunye nearhente yokudibanisa kumonakalo wokufuma womxube we-asphalt. Ukudibanisa i-filler kunye ne-agent edibeneyo kunye ne-fly ash ibizwa ngokuba yi-composite fly ash modifier. Iimpawu zesilungisi sothuthu lwempukane edibeneyo zibonakaliswe ikakhulu ngokuskena i-electron microscopy kunye neFourier transform infrared spectroscopy. Njengesihluzi, isiphumo saso kubuzaza bobumanzi bemixube ye-asphalt yavavanywa ngovavanyo lwemodyuli yokuqina kwe-tensile engathanga ngqo, i-static creep, kunye novavanyo olungathanga ngqo lokudinwa. Iziphumo zibonisa ukuba umxube we-asphalt onedizayini yothuthu lwempukane unamandla angathanga ngqo angathanga ngqo kunye nomlinganiselo wamandla okuqina ngexesha leqabaka kwaye unovakalelo olubalaseleyo lokufuma. Ukongeza, i-composite fly ash modifier modified asphalt umxube ubonise ukuqina okungcono kwemodyuli, ukuchasana nokuguqulwa okusisigxina, kunye nobomi bokudinwa emva konyango oluthile lomonakalo wokufuma. Isiphelo: I-composite fly ash modifier inokuphucula ngokufanelekileyo uvakalelo lokufuma komxube we-asphalt.
Iimfumba zothuthu lweentyantyambo zikwasetyenziswa ngokubanzi kubunjineli bendlela, ngakumbi kumacandelo endlela asisiseko somhlaba othambileyo. Ingasebenzisa ngokupheleleyo ubunzima obulula bothuthu lwempukane ukunciphisa ubunzima boluqobo kunye noxinzelelo olongezelelweyo lwesiseko somhlaba othambileyo, ngaloo ndlela kuncitshiswe ukuhlaliswa ngokupheleleyo kunye nokuphucula uzinzo. Ngokufanayo, ukuzalisa i-fly ash ngomhlaba ophezulu wokuzalisa kwi-bridgehead kunokuphucula ingxaki yokutsiba i-bridgehead ebangelwa ukuhlaliswa okubangelwa ukuzimela kobunzima bomhlaba ophezulu wokuzalisa kwi-bridgehead. U-Liu Tiejun wafunda iimpawu zoomatshini bothuthu lwempukane olusetyenziswa njengesizalisi sokugquma waza wafikelela kwezi zigqibo zilandelayo: ingxinano eyomileyo yothuthu lwempukane yabonisa umkhwa wokunyuka kuqala kwaye iyancipha ngokunyuka kokunyakama, kunye nobuninzi bobomileyo bokufuma. ibiyi-19%; I-coefficient ye-permeability ye-ash yamalahle iyancipha ngokukhawuleza ngokunyuka koxinzelelo olomileyo. Xa ingxinano eyomileyo ye-fly ash ingaphantsi kwe-1.35g / cm3, ubuninzi obomileyo buphantse bungabi nampembelelo kwi-coefficient yayo yokungena; Ukudityaniswa kothuthu lwempukane kuyanda kunye nomthamo wamanzi Xa isiqulatho sokufuma kwimpukane inyuka kwaye iyancipha, kwaye ukuncipha kucotha xa ubumanzi bungaphantsi kwama-26%, kungenjalo buyancipha ngokukhawuleza; xa umthamo wokufuma we-fly ash ukhula nge-1%, i-angle ye-friction yangaphakathi iyancipha malunga ne-0.25 °; Ukudityaniswa kothuthu lwamalahle kwandisa ngokulandelelana ngokunyuka kweqondo lokudibanisa, ngelixa i-angle ye-friction yangaphakathi ye-fly ash inyuka ngokunyuka kweqondo lokunyuka; Isiqulatho sokufuma sothuthu lwempukane Ukusondela kowona mxholo wokufuma okanye usondele kwi-100% ukubumbana, okukhona ukuncipha kokudibana kunye ne-angle ye-friction yangaphakathi kunye nokwanda kwamaxesha okungcangcazela, kwaye kulula ukufikelela kwisimo esizinzileyo ekuqaleni. inqanaba lokungcangcazela. U-Chen Yunyong kunye no-Gao Liang nabo baqhuba uvavanyo lwemodeli yangaphakathi kwimibhobho yothuthu lwempukane eyomeleziweyo. Ngokomgaqo wokufana, la madoda mabini ehlise elona thango ngokomlinganiselo we-1:8 kwaye asebenzisa i-geogrid ephindwe kabini njengesixhobo sokuqinisa, kwaye aqhuba uphando lovavanyo kuxinzelelo kunye noxinzelelo lwempukane yothuthu olomeleziweyo. Iziphumo zibonisa ukuba ukuhlaliswa okungalinganiyo kwe-fly ash ebankment kunokuncitshiswa kakhulu ngokuqiniswa kwe-geogrid, kunye nomthamo wokuthwala we-embankment unokuphuculwa kakhulu.
Umthombo womxholo: I-Fly Ash Industry Alliance
Ixesha lokuposa: Jul-10-2023