Ngaba wakha wazibuza ukuba zenziwa njani iindlela ze-asphalt? Inkqubo iqala ngesixhobo esibalulekileyo esaziwa ngokuba sisityalo sokuxuba i-asphalt. Ukuba usandul' ukufika kwihlabathi lokwakhiwa kweendlela okanye ubunjineli bokwakha, usenokuba ubuza, “Yintoni isityalo sokuxuba i-asphalt?” Kweli nqaku, siza kuhlola izinto ezingaphakathi nezingaphandle kwezityalo zokuxuba i-asphalt, iintlobo zazo, izinto ezisetyenziswa kuzo, kunye nendima yazo kuphuhliso lweziseko zanamhlanje.
Isityalo sokuxuba i-asphalt sisixhobo esisetyenziselwa ukwenza i-asphalt, into ebalulekileyo yokwakha nokugcina iindlela, iindlela ezinkulu, kunye neendawo zokupaka. I-asphalt ngumxube wezinto ezihlanganisiweyo (njengesanti, ilitye eliqhekekileyo, kunye namatye atyumkileyo) kunye ne-bitumen, into emnyama enamathelayo ephuma kwi-oyile eluhlaza. Esi sityalo sidibanisa ezi zinto ngomlinganiselo othile ukuvelisa umphezulu ogudileyo, ohlala ixesha elide, nongangeni manzi.
Makhe ndikuchazele oku: khawucinge ukuba wakha indlela. Udinga izinto ezomeleleyo ngokwaneleyo ukujongana nezithuthi ezininzi kodwa eziguquguqukayo ngokwaneleyo ukumelana notshintsho lobushushu. Kulapho i-asphalt ingena khona, kwaye isityalo sokuxuba i-asphalt kulapho yonke into iqala khona.
Izityalo zokuxuba i-asphalt ziza ngeentlobo ezahlukeneyo, nganye yenzelwe ukuhlangabezana neemfuno ezithile kunye neemfuno zemveliso. Iindidi ezimbini eziphambili zezi:
Izityalo ezixutywe ngamanani amakhulu zivelisa i-asphalt ngokwahlukeneyo. Ibhetshi nganye iyalinganiswa kwaye ixutywe ngokwahlukeneyo, ukuqinisekisa ulawulo oluchanekileyo kwimveliso yokugqibela. Ezi zityalo zilungele iiprojekthi ezincinci ukuya kweziphakathi apho ukuguquguquka koyilo lomxube kubalulekile.
Izityalo ezixutywa rhoqo, njengoko igama lisitsho, zivelisa i-asphalt ngokuhamba rhoqo. Zisebenza kakuhle kwaye zifanelekile kwiiprojekthi ezinkulu apho imveliso eqhubekayo ibalulekile. Ezi zityalo zihlala zisetyenziselwa iiprojekthi zokwakha iindlela ezinkulu.
Isityalo sokuxuba i-asphalt senziwe ngezinto ezibalulekileyo ezininzi ezisebenzisanayo ukuqinisekisa imveliso esebenzayo. Makhe sijonge ngokusondeleyo iindawo eziphambili:
Iibhini ezihlanganisiweyo zigcina izinto eziluhlaza ezifana nesanti, igrabile, kunye namatye atyumkileyo. Ezi zinto zifakwa kwisityalo ngomlinganiselo othile ukuze zenze umxube ofunekayo.
Idrama yokomisa kulapho ii-aggregates zifudunyezwa khona kwaye zomiswe ukuze kususwe umswakama. Idrama yokuxuba emva koko idibanisa ii-aggregates ezomileyo kunye ne-bitumen kunye nezinye izongezo ukwenza umxube wokugqibela we-asphalt.
Ibhitumene igcinwa kwiitanki ezigqunyiweyo ukuze igcine uburhabaxa bayo kwaye ithintele ukuba iphole. Ezi tanki zenzelwe ukuqinisekisa ukuba ibhitumene ihlala ikhona ngexesha lenkqubo yokuxuba.
Inkqubo yolawulo yingqondo yokusebenza. Ijonga kwaye ilawula yonke inkqubo, iqinisekisa ukuba kusetyenziswa umlinganiselo ochanekileyo wee-aggregates kunye ne-bitumen. Izityalo zanamhlanje zihlala zine-automation ephucukileyo ukuze kube nokuchaneka okukhulu nokusebenza kakuhle.
Inkqubo yokuvelisa i-asphalt ibandakanya amanyathelo aliqela. Nantsi inkcazo elula:
Izinto ezisetyenzisiweyo (ii-aggregates) zifakwa kwisityalo zisuka kwiibhini zokugcina. Ubungakanani bezinto ezisetyenzisiweyo bulinganiswa ngononophelo ukuqinisekisa uyilo oluchanekileyo lomxube.
Emva koko ezo zinto zomiswa zize zifudunyezwe kwidrama yokomisa ukuze kususwe naluphi na umswakama kwaye zilungiselelwe ukuxubana.
Ii-aggregates ezomisiweyo zixutywa ne-bitumen kunye nezongezo kwi-mixing drum. Ubungakanani obuchanekileyo bulawulwa yinkqubo yolawulo lwesityalo.
Umxube wokugqibela we-asphalt ukhutshwa kwisityalo uze uthuthwe uye kwindawo yokwakha ukuze ubekwe kwaye uxinaniswe.
Izityalo zokuxuba i-asphalt zidlala indima ebalulekileyo kuphuhliso lweziseko zophuhliso zanamhlanje. Ngaphandle kwazo, ukwakha iindlela ezihlala ixesha elide bekungenakwenzeka. Nazi izizathu ezimbalwa zokuba ezi zityalo zibaluleke kangaka:
Izityalo zokuxuba i-asphalt ziqinisekisa ukuba imveliso yokugqibela ihlangabezana nemigangatho engqongqo yomgangatho. Olu lungelelwaniso lubalulekile ekwakheni iindlela ezinokumelana neemoto ezininzi kunye neemeko zemozulu ezinzima.
Izityalo zokuxuba i-asphalt zanamhlanje zenzelwe ukusebenza kakuhle, nto leyo enciphisa ixesha lokuvelisa kunye neendleko. Oku kuzenza zibe sisisombululo esingabizi kakhulu kwiiprojekthi zokwakha ezinkulu.
Izityalo ezininzi zanamhlanje zixhotyiswe ngolawulo lokusingqongileyo ukunciphisa uthuli kunye nokukhutshwa komoya. Oku kuzenza zibe nobuhlobo nokusingqongileyo kuneemodeli ezindala.
Ngoko ke, yintoni isityalo sokuxuba i-asphalt? Sisakhiwo esinobuchule esidlala indima ebalulekileyo ekuveliseni izixhobo ezifunekayo ekwakheni indlela. Nokuba usebenza kwiprojekthi encinci yasekuhlaleni okanye kwindlela enkulu, isityalo sokuxuba i-asphalt sisixhobo esibalulekileyo sokuqinisekisa umgangatho kunye nokuqina kwemveliso yokugqibela. Ngokuqonda indlela ezisebenza ngayo ezi zityalo, ungayiqonda ngcono ubunjineli kunye nokuchaneka okusetyenziswa ekwakheni iindlela esizisebenzisayo yonke imihla.