Isebenza njani isityalo sokuxuba iAsphalt esiphinda sisetyenziswe?

Abakhi beendlela banokufumana isixhobo sokubopha esidityanisiweyo nesidala kwindlela egayiweyo endaweni yokusiphatha njengenkunkuma. Umngeni kukucubungula loo nto ngaphandle kokulahlekelwa lulawulo lokuphakama, ubushushu, okanye ukuhambelana komxube.

Esi sikhokelo silandela indlela yokuphinda kusetyenziswe izinto ezisetyenzisiweyo ukusuka ekulungiseleleni nasekufudumaleni kwe-RAP ukuya ekulinganiseni, ekuxubeni, ekulawuleni umgangatho, kunye nokusebenza kwesityalo ngokubanzi. Qhubeka ufunda ukuze ufunde okungakumbi malunga isityalo sokuxuba i-asphalt ngokurisayikilisha .

Yintoni isityalo sokuxuba iAsphalt?

Isityalo se-asphalt esiphinda sisetyenziswe sivelisa umxube we-asphalt oshushu kunye ne-asphalt pavement ephinde yasetyenziswa, ebizwa ngokuba yi-RAP. I-RAP ine-aggregate egqunywe nge-asphalt binder endala.

Isityalo kufuneka sibe nobukhulu, silinganise, sifudumale, size sidibanise i-RAP. Injongo kukuxuba okuzinzileyo okuhambelana neresiphi yeprojekthi ngelixa kusetyenziswa izinto ezibuyiselweyo. Ukuphinda kusetyenziswe okushushu kunokudityaniswa kwisityalo okanye kongezwe ngenkqubo yokuphinda kusetyenziswe. Abathengi banakho hlaziya uqwalaselo oludibeneyo lwesityalo sokurisayikilisha esishushu xa kuthelekiswa uyilo.

Indlela i-RAP elungiselelwa ngayo ukuze isetyenziswe kwakhona

Umgangatho we-RAP uqala ngaphambi kokuba izinto zingene kwinqaba yokuxuba. Ukulungiswa okungafanelekanga kudala amazinga okutya angaqinisekanga kwaye kwenza ulawulo lokuxuba lube nzima.

◆ Ukutyumza nokuHlola iRAP:

Indlela egayiweyo ingafika ngobukhulu obuhlukeneyo kwaye inokuba neziqwenga ezinkulu kakhulu. Ukutyumza kunciphisa iziqwenga ezinkulu, ngelixa ukuhluza kwahlula amaqhezu asebenzisekayo. Ukwahlulahlula i-RAP ibe bubukhulu obulawulwayo kuphucula ukuhambelana kokutya. Ikwanika abayili bomxube ulawulo lokwahlulwahlulwa kwemigangatho kunye negalelo le-recycled binder. Inkqubo yokutyumza kunye nokuhlola ye-RAP ezinikeleyo inokulungiselela izinto ezibuyiselweyo ngaphambi kokuba zondliwe izityalo.

◆ Ukugcinwa kunye nokondla kwezinto:

I-RAP kufuneka igcinwe ngokomthombo okanye ubungakanani xa iipropati zahlukile. Oku kunciphisa utshintsho kumanqanaba okanye kumxholo we-binder. Iibhini zokutya emva koko zilinganisa indlela ye-asphalt ebuyiselweyo ngesantya esimiselweyo. Ukuhamba okungavumelekanga kutshintsha ipesenti ephinda isetyenziswe ukusuka kwelinye ibhetshi ukuya kwelinye.

Indlela i-RAP efudunyezwa ngayo kwisityalo sokuxuba

I-RAP yokufudumeza ifuna unyango olwahlukileyo kwi-clean virgin aggregate. I-binder endala sele indala, ngoko ke ubushushu obugqithisileyo bunokuyonakalisa ngakumbi.

✔ Ubushushu be-RAP obulawulwayo:

Inkqubo yokuphinda usebenzise idlulisela ubushushu obaneleyo kwi-RAP ukususa umswakama nokufikelela kwimeko yokuxuba efunekayo. Ukuvezwa komlilo ngqo kufuneka kuthintelwe kwiinkqubo ezenzelwe izinto ezibuyiselweyo. Ezinye izityalo zifudumeza i-RAP kwidrama eyahlukileyo yokuphinda usebenzise. Ezinye zisebenzisa i-hot virgin aggregate ukuhambisa ubushushu ngexesha lokuxuba.

✔ Ulawulo lobushushu:

Ukufuma kwe-RAP kuchaphazela amandla angakanani afunekayo kwinkqubo. Izinto ezimanzi zithatha ixesha elide ukoma kwaye zinokunciphisa imveliso yesityalo. Abaqhubi bajonga ubushushu be-RAP, ubushushu obuhlanganisiweyo obuyi-virgin, kunye nobushushu bomxube wokugqibela kunye. Ibhalansi ixhomekeke kwiresiphi kunye noyilo lwesityalo.

Indlela i-Asphalt ephinda isetyenziswe exutywa ngayo

Nje ukuba ilungisiwe kwaye ifudunyezwe, i-RAP kufuneka ifake iresiphi ngomlinganiselo ochanekileyo. Inkqubo yolawulo idibanisa izinto ezifunyenweyo kunye nezinto ezintsha ezifakiweyo.

▶ Ukwahlulahlula kwe-RAP:

Ipesenti ye-RAP kufuneka ilandele uyilo lomxube oluvunyiweyo. Ukuchaneka kokutya kubalulekile kuba i-RAP inegalelo kwi-aggregate nakwi-aged binder.

▶ Izinto zeVirgin kunye neBinder:

I-aggregate entsha ilungisa uhlengahlengiso apho kufuneka khona. I-asphalt binder entsha ibuyisela umxholo we-binder ofunekayo kwiresiphi. Eminye imixube ingasebenzisa i-recycling okanye i-revivenating agent. Ukusetyenziswa kwayo kuxhomekeke kwimeko ye-binder kunye neemfuno zoyilo lwe-mix.

▶ Ukuxuba nokukhupha umbane:

Umxubi kufuneka asasaze izinto ezibuyiselweyo nezingasebenziyo ngokulinganayo ngaphambi kokuba zikhutshwe. Ixesha lokuxuba kufuneka lixhase ukugqunywa okufanayo ngaphandle kokucothisa imveliso ngokungeyomfuneko. I-asphalt egqityiweyo esetyenzisiweyo emva koko ifuduselwa kwisisele sokugcina okanye kwiilori zokugawula.

Itheyibhile yeNkqubo yoKuphinda usebenzise iAsphalt

Indlela Esi Sityalo Esigcina Ngayo Umgangatho Oxutyiweyo

Inkqubo elungileyo yokuphinda usebenzise ixhomekeke kwiingeniso eziphindaphindwayo kunye nolawulo oluchanekileyo. Utshintsho oluncinci lwezinto lunokuchaphazela umxube wokugqibela ngokukhawuleza.

◇ Ukungaguquguquki kwezinto:

Abaqhubi kufuneka bajonge ukuhlelwa kwe-RAP, ukufuma, kunye nomxholo we-binder. Iimpahla ezigciniweyo ezahlukeneyo ziyanceda xa izinto ezifunyenweyo zivela kwimithombo eyahlukeneyo. Ukufakwa rhoqo kwenza i-asphalt ye-RAP ibe lula ukuyilinganisa kwaye kunciphisa ukulungiswa ngexesha lokuveliswa.

◇ Ulawulo lobushushu:

Ubushushu kufuneka bube phezulu ngokwaneleyo ukuze kuxutywe kakuhle, kodwa kufuneka kuphetshwe ubushushu obungeyomfuneko. Oku kukhusela isibopheleli esidala kwaye kuthintele ukukhutshwa komoya okungafunekiyo.

◇ Ulawulo lweNkqubo oluzenzekelayo:

Ulawulo lwanamhlanje ludibanisa izixhobo zokuphakela, iinkqubo zokulinganisa, amaqondo obushushu, ixesha lokuxuba, kunye neerekhodi zemveliso. Iialamu zinokubonisa iimeko ezingaqhelekanga ngaphambi kokuba ubungakanani buchaphazeleke.

Yintoni Echaphazela Ukusebenza Kwezityalo Eziphinda Zisetyenziswe?

Imveliso yezityalo ixhomekeke kumthamo ongaphezulu komlinganiselo. Imeko yendlela ye-asphalt ebuyiselweyo kunye nepesenti yokurisayikilisha inokutshintsha isantya sokwenyani semveliso.

☀ Umgangatho we-RAP kunye nokufuma:

I-Wet RAP idla ubushushu obuninzi kwaye inokunciphisa ukuphuma kwayo. Ungcoliseko, imithombo exutyiweyo, kunye nobukhulu obungazinzanga kwenza imveliso ingaqikeleleki. Indlela ye-asphalt ebuyiselweyo inokugcina umswakama omninzi ngexesha lokugcina.

☀ Umlinganiselo wokusetyenziswa kwakhona:

Iipesenti eziphezulu ze-RAP zonyusa umthwalo wezinto ezifunyenweyo kwiinkqubo zokufudumeza nokulawula. Umlinganiselo osebenzayo uxhomekeke kubume besityalo kunye noyilo lomxube.

☀ Iimfuneko zeMveliso:

Imveliso efunekayo, utshintsho lweresiphi, umthamo wokugcina, kunye neenkcukacha zeprojekthi zonke zichaphazela ukukhethwa kwesityalo. Tshatisa izixhobo neemeko zokusebenza, kungekuphela nje umthamo wepleyiti yegama.

Isiphelo :

Ukulungiswa kwe-RAP okucwangcisiweyo, ukufudumeza, ukulinganisela kunye nolawulo kuyafuneka kwisityalo sokuxuba i-asphalt esiphinda sisetyenziswe. Ukuphathwa kwezinto kunye nokuphindaphinda kwazo kubaluleke kakhulu kunepesenti yokuphinda sisetyenziswe.

Kwabo bakhi abaceba utyalo-mali, Isityalo se-Asphalt se-TTM   inika indlela esebenzayo yokuya phambili. Sigxile kwizixhobo zokuxuba i-asphalt kunye nokurisayikilisha ukusukela ngo-2004. Indawo yethu inika ingxelo yeepatenti ezingama-562 kunye neentengiso kumazwe angaphezu kwama-60 nakwiindawo.

Njengomvelisi kunye nomthengisi wezityalo zokuxuba i-asphalt, sixhasa ukukhethwa kwezixhobo, ukuqaliswa kokusebenza, inkonzo ekude, kunye neemfuno zezixhobo ezingasetyenziswanga. Sithumelele imeko yakho ye-RAP, umlinganiselo wokusetyenziswa kwakhona okujoliswe kuwo, imveliso efunekayo, kunye neenkcukacha zeprojekthi. Singaziphonononga kwaye sicebise ukuseta imveliso kwiimeko zakho zokusebenza.

Imibuzo ebuzwa rhoqo

Umbuzo 1. I-RAP kufuneka igcinwe njani ngaphambi kokuba ingene kwisityalo se-asphalt se-RAP?

Impendulo: Gcina ii-RAP zicocekile kwaye zahlulwe xa imithombo okanye ubungakanani bahlukile. Nciphisa ukuvezwa komswakama kwaye uphephe iindlela ezidibanisa izinto zibe ngamaqela aqinileyo.

Umbuzo 2. Ngaba isityalo se-asphalt esikhoyo singaphuculwa ngenkqubo yesityalo se-asphalt esiphinda sisetyenziswe?

Impendulo: Ewe, ezinye izityalo zingamkela izixhobo zokuphinda zisetyenziswe ezizimodyuli. Ukuhambelana kwazo kuxhomekeke kuyilo, ulawulo, umthamo womxube, amalungiselelo okufudumeza, kunye nepesenti ye-RAP ekujoliswe kuyo. I-TTM idwelisa izixhobo zokuphinda zisetyenziswe ezishushu ezidityanisiweyo nezongezelelweyo kwinkqubo yayo yangoku yemveliso.

Umbuzo 3. Zeziphi iindawo zolondolozo ezifuna ingqwalasela eyongezelelweyo xa kusetyenzwa i-asphalt esetyenzisiweyo?

Impendulo: Bukela ii-RAP feeders, ii-screens, ii-conveyors, ii-drums, ii-temperature sensors, ukuqokelelwa kothuli, kunye nokuguguleka kwe-mixer. Izinto ezinamathelayo ezibuyiselweyo zinokwandisa ukwakheka kwiindawo zokudlulisela.