Yintoni ekufuneka ihlawulwe ingqalelo ekulawuleni ubushushu ngexesha lokwakhiwa kwe-asphalt kwi-pavement?
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Yintoni ekufuneka ihlawulwe ingqalelo ekulawuleni ubushushu ngexesha lokwakhiwa kwe-asphalt kwi-pavement?
Ixesha lokukhupha:2024-11-07
Funda:
Yabelana:
1. Ubushushu obugangathiweyo bepavumente ye-asphalt budla ngokuba yi-135 ~ 175℃. Ngaphambi kokuhamba nge-asphalt ye-pavement, kuyimfuneko ukususa i-debris kwisiseko se-pavement ukuqinisekisa ukuba isiseko se-pavement somile kwaye sicocekile. Kwangaxeshanye, kuyimfuneko ukuba kuqinisekiswe ingqiqo yoxinaniso kunye nobukhulu bendlela yesiseko, ebeka isiseko esibalulekileyo kwi-asphalt paving.
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2. Ubushushu bekhonkco lokuqala loxinzelelo ngokuqhelekileyo luyi-110 ~ 140 ℃. Emva koxinzelelo lokuqala, abasebenzi bezobugcisa abafanelekileyo kufuneka bajonge ukuthe tyaba kunye ne-arch yendlela ye-pavement, kwaye balungise naziphi na iingxaki ngokukhawuleza. Ukuba kukho i-shift phenomenon ngexesha le-rolling process, unokulinda de iqondo lobushushu lehle ngaphambi kokuqengqeleka. Ukuba kuvela iintanda ezinqamlezileyo, khangela isizathu kwaye uthathe amanyathelo okulungisa ngexesha.
3. Ubushushu bekhonkco lokucofa kwakhona ngokuqhelekileyo yi-120 ~ 130℃. Inani le-rolling kufuneka libe ngaphezu kwamaxesha ama-6. Kungale ndlela kuphela apho uzinzo kunye nokuqina kwe-pavement kuqinisekiswa.
4. Iqondo lobushushu ekupheleni koxinzelelo lokugqibela kufuneka libe likhulu kune-90℃. Uxinzelelo lokugqibela linyathelo lokugqibela lokuphelisa amanqaku evili, iziphene kunye nokuqinisekisa ukuba umaleko womphezulu unomcaba olungileyo. Ekubeni ukunyanzeliswa kokugqibela kufuneka kupheliswe ukungalingani okushiyekileyo kwi-surface layer ngexesha lokulungiswa kwakhona kunye nokuqinisekisa ukunyanzeliswa komgangatho wendlela, umxube we-asphalt kufuneka kwakhona ukuphelisa ukunyanzeliswa kwinqanaba eliphakamileyo kodwa lingekho kakhulu.