Imixube eDense-Graded
Ukuxuba okuxutywayo kwe-asphalt ngumxube oqhelekileyo osetyenziswayo kuba unokubonelela iimpawu ezingapheliyo ezivumela amanzi ukuba abaleke endaweni yomhlaba.
Igama livela kubukhulu obukhulu besetyenziselwa ukuxubusha izinto ezibonakalayo ukwenzela ukuvelisa i-asphaltic composition. Iyakwazi ukwahlukana njenge-graded-graded or grared-graded, ngokuxhomekeke kwininzi labaninzi kwiimveliso zokugqibela.
Olu hlobo lwe-asphalt lulungele zonke izimo zendlela kunye nokusebenza okuhle phantsi kweemeko zesakhiwo, ukuxubana, kunye nokukhupha kunye nokulungisa izidingo.
I-Stone Matrix Asphalt
Lo mxube waveliswa ukuze ukwandise ukuxhatshazwa nokunyaniseka. Ngenxa yenkqubo yokuvelisa, lo mxube we-asphalt ubiza ngakumbi kuneemichibi eziqhelekileyo ezidibeneyo. Ukuyila kwayo kusekelwe kwinqulatho ephezulu ye-asphalt, iguqulelwe njenge-asphalt binder kunye ne-fibers. Uhlobo lwe-asphalt luye lwasetyenziswa ukususela ngo-1980 kwaye lunokusetyenziswa kwiindlela ezininzi zeendlela kunye neendlela zokuhamba.
Ngenxa yeendleko zayo eziphakamileyo, kucetyiswa ukuba kusetyenziswe ezindleleni eziphezulu eziphezulu eziphezulu ukuze zifumane inzuzo ekuqaliseni nokunyamezela kwayo.
Kuya kwandisa ukhuseleko lomqhubi ngenxa yezinto ezinokubangela ukuxhatshazwa ngamathala; kuya kunciphisa umsindo wokukhathala kwaye kuya kunciphisa ukukhwaza okubonakalayo.
Ukuzaliswa kwamaminerali kunye neezongeziweyo zisetyenziselwa ukunciphisa i-asphalt binder drain-down ngexesha lokwakhiwa ngelixa ukwandisa inani le-asphalt binder elisetyenziselwa ukuxuba kunye nokuphucula ukuxuba ukuxuba.
Imixube evuliwe
Ukwahlukana kokuqala kokuqala kunye namaxube avulekileyo kukubonakaliswa kwebala. Umxube otshisiweyo njenge-asphalt yenzelwe kuphela ngamatye aqingqiweyo kunye neentlobo ezimbalwa zesanti edibeneyo. Kukho izigaba ezimbini ezibalulekileyo zolu hlobo lokuxuba:
- I-course-fredction course-fredction course- Air voids imfuno emncinci i-15%, kwaye akukho nxalenye ephezulu yokungafihli komoya . Lo mxube usetyenziswa kuphela kwizifundo zomhlaba. Unomphetho ogqithiseleyo ngaphezu kobuninzi obuninzi. Iindleko zayo eziphantsi zokufakwa zichasene neendleko eziphezulu zokuvelisa. Nangona kunjalo, qiniseka ukuba awuyikugubungela okanye ukutywinwa kwamapolisa njengoko eli nyathelo liza kunciphisa ngokukhawuleza kwaye lihlaziye ukusebenza kwe-asphalt nokuzinza.
- I-Asphalt iphathwe izixhobo ezinobungakanani - Isetyenziselwa kuphela phantsi kwe-dense-graded, ukuxuba ngamatye okanye ikhonkritenti ye-portland yesitraki ye-drainage. Isetyenziselwa iinjongo zokuhambisa amanzi ngaphantsi kwe-density-graded, mix mix stone, okanye ikhonkrithi ye-Portland samente.
Iingcebiso zoKwakha kwi-Asphalt Placement
Ngoku ukuba uyazi iindidi ezintathu ze-asphalt, kufuneka uqaphele ezi zilandelayo ngcebiso ngexesha lokwakha. Okokuqala, umxube otshisiweyo njengothuthi uya kuthunyelwa kwisityalo esiseduze ukuya kwindawo yomsebenzi, kwaye kusondele ngakumbi kukugcina ukushisa okufanelekileyo.
Qiniseka ukuba ungeze umkhiqizo ongekho usetyenziso lwepetroleum kwisihlalo sakho seloli ukuze ugweme umxube wokubambelela kwiloli. Kunconywa ukuba ulungiselele umgangatho ngaphambi kokufaka umxube omtsha we-asphalt ngokugaya indawo.
Inkqubo iya kususa iindawo ezindala ngelixa zibonelela indawo engcono yokubamba indawo yokubeka i-asphalt entsha. Inzuzo eyongeziweyo yenkqubo yokukhwela kukuba iya kuvumela amanzi ukuba aqhube kakuhle ukuze aphephe kunye namagumbi ngokugcina iimpawu zokuhambisa amanzi kunye nommandla wendlela.
Inkqubo yokuqulunqa imele iyenziwe ngokunyamekileyo ukuze igweme ukunyuka kwebala kwaye kufuneka iqale ngelixa umxube ushushu ngenxa yeziphumo ezingcono. Sebenzisa i-wind pneumatic okanye i-steel rollers kwiziphumo ezingcono. Qinisekisa ukujonga ubuninzi be-asphalt ngaphambi kokugqiba ukugqiba ukuba ngaba okanye ingekho i-traffic ingavunyelwa kwi-pavement surface.