Ukutywinwa koludaka kwavela eJamani kwaye kunembali engaphezulu kweminyaka engama-90. Amatywina anodaka anoluhlu olubanzi lwezicelo kwaye angasetyenziselwa ukulungiswa kohola wendlela. Kuba ineengenelo zokonga umbane, ukunciphisa ukungcoliseka kwendalo kunye nokwandisa ixesha lokwakha, iya ithandwa ngakumbi ngamagcisa ohola wendlela kunye nabasebenzi bokulungisa. Umaleko wokutywina wenziwa ngeetshiphusi zamatye okanye isanti ezikumgangatho ngokufanelekileyo, izigcwalisi (isamente, ikalika, uthuthu lwempukane, umgubo wamatye, njl.njl.), iasphalt ene-emulsified, imixube yangaphandle kunye namanzi, athi axutywe eludaka ngokomlinganiselo othile aze asasazeke A. ulwakhiwo lwendlela esebenza njengetywina emva kokuba lugangathiwe, lwaqiniswa, lwaze lwayilwa. Ngenxa yokuba ukuhambelana kwalo mxube we-slurry kuncinci kwaye imilo ifana ne-slurry, ubukhulu be-paving ngokubanzi buphakathi kwe-3-10mm, kwaye ubukhulu becala budlala indima yokukhusela amanzi okanye ukuphucula nokubuyisela umsebenzi we-pavement. Ngophuhliso olukhawulezayo lwe-asphalt ye-polymer-modified emulsified kunye nokuphuculwa kobugcisa bokwakha, i-polymer-modified emulsified asphalt slurry seal ibonakala.
Isitywina sodaka sinemisebenzi elandelayo:
1. Ukuthintela amanzi
Ubungakanani be-aggregate ye-particle yomxube we-slurry ilungile kwaye ine-gradation ethile. Umxube we-asphalt slurry we-emulsified wenziwa emva kokuba i-pavement igayiwe. Iyakwazi ukubambelela ngokuqinileyo kwindlela yokwenza umgangatho oxineneyo, onokuthi uthintele imvula kunye nekhephu ekungeneni kwisiseko kunye nokugcina uzinzo lwesiseko kunye nesiseko somhlaba:
2. I-Anti-slip effect
Ekubeni ubukhulu be-paving ye-emulsified asphalt slurry umxube buncinci, kwaye izinto ezinqabileyo kwi-gradation yazo zisasazwa ngokulinganayo, kwaye ubungakanani be-asphalt bufanelekile, isiganeko sokukhukula kweoli endleleni ayiyi kwenzeka. Umphezulu wendlela unomhlaba omhle orhabaxa. I-coefficient ye-friction yanda kakhulu, kwaye ukusebenza kwe-anti-skid kuphuculwe kakhulu.
3. Ukunxiba ukuxhathisa
I-asphalt ye-Cationic emulsified inokubambelela kakuhle kwizinto zombini ze-acidic kunye ne-alkaline mineral. Ngoko ke, umxube we-slurry unokwenziwa kwizinto eziphezulu zamaminerali ekunzima ukunxiba kunye nokusila, ngoko unokufumana ukuchasana kakuhle kunye nokwandisa ubomi benkonzo yendlela.
4. isiphumo sokuzalisa
Umxube we-asphalt slurry emulsified uqulethe amanzi amaninzi, kwaye emva kokuxuba, i-slurry state kwaye ine-fluidity enhle. Olu daka lunesiphumo sokuzalisa kunye nokulinganisa. Inokumisa iintanda ezincinci kumphezulu wendlela kunye nepavumente engalinganiyo ebangelwa kukukhululeka kunye nokuwa kumphezulu wendlela. I-slurry ingasetyenziselwa ukutywina iintanda kunye nokuzalisa imigodi engekho nzulu ukuphucula ukuguda kwendlela.
Izinto eziluncedo zokutywina eludaka:
1. Inokumelana nokunxiba okungcono, ukusebenza kokungangeni manzi, kunye nokubambelela ngamandla kumaleko angaphantsi;
2. Inokwandisa ubomi beendlela kunye nokunciphisa iindleko ezibanzi zokulungisa;
3. Isantya sokwakha sikhawuleza kwaye sinempembelelo encinci kwi-traffic;
4. Sebenza kwiqondo lobushushu eliqhelekileyo, ucocekile kwaye unobuhlobo nokusingqongileyo.
Iitekhnoloji eziphambili zolwakhiwo lokutywinwa kodaka:
1. Izinto eziphathekayo zihlangabezana neemfuno zobugcisa. I-aggregate inzima, i-gradation ifanelekile, uhlobo lwe-emulsifier lufanelekile, kwaye ukuhambelana kwe-slurry kumodareyitha.
2. Umatshini wokutywina unezixhobo eziphambili kunye nokusebenza okuzinzile.
3. Indlela endala ifuna ukuba amandla apheleleyo endlela endala ahlangabezane neemfuno. Iindawo ezingenamandla aneleyo kufuneka ziqiniswe. Imingxuma kunye neentanda ezinzulu kufuneka zombiwe kwaye zilungiswe. Iibhali kunye neebhodi zokuhlamba kufuneka zicolwe. Iintanda ezinkulu kune-3 mm kufuneka zizaliswe kwangaphambili. Iindlela mazicocwe.
4. Ulawulo lwezithuthi. Sika ngokungqongqo i-traffic ukuthintela izithuthi ekuqhubeni kwi-slurry seal ngaphambi kokuba yomelele.
