Li-granule tsa rabara ke lihlahisoa tsa bohlokoa tse nkiloeng lits'ebetsong tsa ho fetola lithaere tsa litšila, tse sebetsang e le khokahano ea bohlokoa pakeng tsa ho lahla litšila tsa rabara le tšebeliso e ncha ea mehloli. Ho fapana le thepa ea rabara e tala, li-granule tsa rabara li sebelisa lithaere tse lahliloeng, tse ngata ebile li theko e tlase, e leng se etsang hore li be ntle bakeng sa lits'ebetso tse fapaneng tsa indasteri le tsa sechaba. Tlhahiso ea li-granule tsa rabara e kenyelletsa mehato e mengata e thata ho kenyeletsoa ho pshatla lithaere, karohano ea terata ea tšepe, ho pshatla rabara, ho tlosa litšila le ho hlophisa. Ho pshatla lithaere ho roba lithaere tse kholo tse lahliloeng likotoana tse nyane tsa rabara bakeng sa ts'ebetso e latelang; karohano ea terata ea tšepe e tlosa likarolo tsa tšepe tse kentsoeng ka har'a lithaere ka theknoloji ea karohano ea makenete ho netefatsa bohloeki ba rabara; ho pshatla rabara ho fokotsa likotoana tsa rabara ka likaroloana tse ntle; ho tlosa litšila ho felisa lithōle tse setseng tse kang faeba le lerōle; ho hlophisa ho arola likaroloana ka litlhaloso tse fapaneng ho latela litlhoko tsa ts'ebeliso. Mohato o mong le o mong o entsoe ka hloko ho boloka ho tenyetseha ha rabara le ho hanyetsa ho tsofala ha o ntse o etsa likaroloana tse tšoanang tse fihlelang litekanyetso tse fapaneng tsa ts'ebeliso. Thepa e ikhethang ea 'mele ea li-granule tsa rabara, joalo ka ho monya ho ts'oaroa ho hoholo, ts'ebetso e tšepahalang ea ho thibela ho thella le ho hanyetsa ho bola ho matla, ho li etsa hore li be le mekhoa e mengata masimong a mangata ho feta liindasteri tsa setso.
Indasteri ea ho sebelisa hape lithaere e itšetlehile haholo ka li-granule tsa rabara e le lihlahisoa tsa mantlha, kaha li fokotsa khatello ea tikoloho e bakoang ke ho tlatsoa ha lithaere le ho chesoa ha tsona—mekhoa e 'meli ea ho lahla e atisang ho lebisa tšilafalong le litšila tsa mehloli. Nakong ea ts'ebetso ea ho sebelisa hape, li-granule tsa rabara tse nang le bokhabane bo fapaneng li hlahisoa ho latela litlhoko tse fapaneng: li-granule tse ntle tsa rabara, tse nang le boholo bo bonyenyane le bo ts'oanang ba likaroloana, li loketse ho kopanngoa le lisebelisoa tse ling tse kang li-polymer le bitumen ho ntlafatsa ts'ebetso ea sehlahisoa, ha li-granule tsa rabara tse mahoashe, tse nang le boholo bo boholo ba likaroloana le boima bo phahameng, hangata li sebelisoa bakeng sa ho tlatsa le ho tlatsa mererong ea kaho. Li-granule tsa rabara tse sebelisitsoeng hape li boetse li bontša ho lumellana ho hoholo le li-polymer, bitumen le konkreite, e leng se li nolofalletsang ho sebelisoa haholo tlhahisong ea thepa e kopaneng le kaho ea meaho e fapaneng, ka hona ho atolosa boholo ba ts'ebeliso ea tsona makaleng a kaho le tlhahiso. Likhoebo tse ngata tsa taolo ea litšila li shebana le ho ntlafatsa lits'ebetso tsa tlhahiso, joalo ka ho ntlafatsa lisebelisoa tsa ho sila le ho ntlafatsa ho nepahala ha ho hlophisoa, ho ntlafatsa chai le boleng ba li-granule tsa rabara, ho netefatsa hore ts'ebetso ea ho sebelisa hape e sebetsa hantle ebile ea tšepahala.
Ntlafatso ea bokaholimo ba lipapali ke sebaka se seng sa bohlokoa moo li-granule tsa rabara li bapalang karolo e ke keng ea nkeloa sebaka. Mabala a khale a lipapali le litsela tsa ho matha hangata li na le bothata ba ho senyeha ha bokaholimo, ho petsoha le ho lahleheloa ke ho monngoa ke tšabo ka lebaka la tšebeliso ea nako e telele le khoholeho ea tlhaho, 'me li-granule tsa rabara li fetoha thepa e loketseng bakeng sa ntlafatso ka lebaka la thepa ea tsona e ikhethang. Ha li sebelisoa ho li-roll tsa ho matha tse nchafatsang bokaholimo, li-granule tsa rabara hangata li kopanngoa le li-binder tsa polyurethane ho etsa bokaholimo bo teteaneng le bo tenyetsehang bo fokotsang tšusumetso lisebelisoa tsa lipapali, bo fokotsa ho tsofala le ho taboha ha lisebelisoa, le ho ntlafatsa polokeho ka kakaretso ea libaka. Ntlafatsong ea joang ba maiketsetso bakeng sa mabala a bolo ea maoto le libaka tsa ho bapala, li-granule tsa rabara li sebelisoa e le thepa ea ho tlatsa ho tsosolosa ho otloloha ha faeba ea joang—ho thibela likhoele hore li se ke tsa batalatsoa ke ho hatakeloa khafetsa—le ho ntlafatsa bonolo ba bokaholimo, ho fana ka boiphihlelo bo phutholohileng le bo sireletsehileng ba lipapali. Li-granule tsa rabara tse mebala, tse sebetsoang ka ho eketsa mebala e mosa tikolohong, le tsona li sebelisoa haholo ntlafatsong ea bokaholimo ba lipapali. Li ka sebelisoa ho theha lipaterone tse fapaneng le li-block tsa mebala ho nchafatsa ponahalo ea sebaka ha li ntse li boloka khanyetso e ntle ea boemo ba leholimo le botsitso ba UV, ho netefatsa hore mebala ha e fifale habonolo tlas'a khanya ea letsatsi ea nako e telele. Merero ea ntlafatso e sebelisang li-granule tsa rabara hangata e hloka khetho e tiileng ea thepa ho netefatsa hore li-granule tsa rabara li fihlela maemo a loketseng a tikoloho le ts'ebetso, joalo ka ho feto-fetoha ho tlase le ho hanyetsa ho tsofala ho hoholo.
Lekala la indasteri le boetse le bona ts'ebeliso e ntseng e hola ea li-granule tsa rabara, 'me thepa ea tsona e sebelisoa ka botlalo maemong a fapaneng a tlhahiso le ts'ebetso. Tlhahisong ea li-mat le mesamo ea indasteri, li-granule tsa rabara li kopantsoe le thepa ea maiketsetso joalo ka PVC le EVA ho hlahisa lihlahisoa tse nang le litlamorao tse ntlafalitsoeng tsa ho monya le ho fokotsa lerata. Lihlahisoa tsena li sebelisoa haholo lifekthering, matlong a polokelo le litsing tsa thepa - mohlala, li beoa tlas'a mechini e boima ho fokotsa ho thothomela le lerata, kapa li sebelisoa e le li-mat tse thibelang mokhathala bakeng sa basebetsi ba emeng nako e telele. Li-granule tsa rabara li boetse li eketsoa ho li-coat tse sa keneleng metsi ho ntlafatsa ho tenyetseha ha li-coat le ho hanyetsa mapetso, ho nolofalletsa li-coat ho ikamahanya le ho fetoha hanyane ha meaho ea meaho ntle le ho petsoha, ka hona ho eketsa bophelo ba ts'ebeletso ea ho haha li-layer tse sa keneleng metsi. Tlhokomelong ea litsela, li-granule tsa rabara tse kopantsoeng le asphalt li sebelisoa bakeng sa ho lokisa li-pothole le ho koala bokaholimo. Motsoako ona o na le khokahano e matla holim'a bokaholimo ba tsela ea pele, o ka tlatsa li-pothole kapele le ho koala mapetso, o thibela metsi a pula ho kena ka har'a motheo oa tsela le ho baka tšenyo e eketsehileng holim'a libaka tsa litsela. Ts'ebeliso ena ea indasteri e sebelisa thepa ea 'mele ea li-granule tsa rabara ka botlalo, e tlisa melemo ea moruo ho likhoebo ka ho fokotsa litšenyehelo tsa tlhokomelo le ho ntlafatsa ts'ebetso e sebetsang ha ho ntse ho rarolla mathata a sebetsang tlhahiso le ts'ebetso.
Mefuta e fapaneng ea li-granule tsa rabara e na le litšobotsi tse ikhethang tse ikamahanyang le lits'ebetso tse ikhethileng, tse fihlelang litlhoko tse fapaneng tsa liindasteri tse fapaneng. Li-granule tsa rabara tsa mabili a sebelisitsoeng hape, tse entsoeng ka lithaere tse lahliloeng, li theko e tlase ebile li tsamaisana hantle le thepa e ngata, kahoo li sebelisoa haholo masimong a ho tlatsa le ho haha joalo ka ho tlatsa motheo oa litsela le ho koahela motheo oa moaho. Li-granule tsa rabara tsa maiketsetso tse kang li-granule tsa rabara tsa SBR le EPDM, tse hlahisoang ka ho kopanya lik'hemik'hale, li na le botsitso bo betere ba lik'hemik'hale, matla a ho tensile a phahameng le ho hanyetsa botsofali le oxidation hamolemo ha li bapisoa le li-granule tsa rabara tsa mabili a sebelisitsoeng hape. Ka hona, li loketse maemo a batloang haholo joalo ka libaka tsa lipapali tsa litsebi—moo tšebeliso ea nako e telele le maemo a thata a tikoloho a hlokang ts'ebetso e phahameng ea thepa—le lisebelisoa tsa indasteri tse hlokang ho hanela ho bola ha lik'hemik'hale. Ts'ebetso ea tlhahiso ea li-granule tsa rabara tsa maiketsetso e kenyelletsa ho lekanya ka nepo thepa le taolo e tiileng ea ts'ebetso ea mocheso ho netefatsa boholo bo tsitsitseng ba likaroloana le ts'ebetso e tsitsitseng ea sehlahisoa sa ho qetela. Li-granule tsa rabara tse sebelisitsoeng hape le tsa maiketsetso ka bobeli li hlahlojoa ka thata boleng pele li tloha fekthering, li akaretsa likarolo tse kang kabo ea boholo ba likaroloana, matla a ho tensile, khanyetso ea botsofali le litaba tse feto-fetohang ho netefatsa hore li fihlela litlhoko tsa ts'ebeliso.
Nako ea poso: Tshitwe-22-2025



