Kune akawanda marudzi easphalt pamusika, saka yakawanda sei yatinoziva nezve misimboti yekugadzira yerabha asphalt? Ngatitarisei pamwe chete.
Rubber asphalt yakagadziridzwa asphalt binder zvinhu inoumbwa nekutanga kugadzira marara ekutanga kuita hupfu hwerabha, wozoisanganisa zvinoenderana neimwe coarse uye yakanaka giredhi reshiyo, ichiwedzera akasiyana epamusoro mapolymer modifiers, uye kunyungudika nekuzvimba nematrix asphalt. pasi pekushisa kwepamusoro (pamusoro pe180 ° C) nekusanganiswa kwakakwana. Inowanzo nzwisiswa seasphalt ine rubber yakawedzerwa. Rubber asphalt ine yakanyanya kugadzikana tembiricha, yakaderera tembiricha kuchinjika, anti-kuchembera, anti-kuneta, uye kudzivirira kukuvara kwemvura. Iyo yakanaka yezvakatipoteredza inoshamwaridzana pavement zvinhu uye inonyanya kushandiswa mukudzvinyirira absorption layer uye yepamusoro layer yezvimiro zvemigwagwa.

Pane pfungwa nhatu dzakakurumbira dze "rabha asphalt": "dry method" rubber asphalt, "wet method" rubber asphalt, uye "asphalt depot mixing method" rubber asphalt.
(1) "Dry method" rabha asphalt ndeyekusanganisa poda yerabha neaggregate kutanga, wozowedzera asphalt yekusanganisa. Iyi nzira
Kutarisa hupfu hwerabha sechikamu chemuunganidzwa, asi kazhinji huwandu hwehupfu hwerabha haugone kunge hwakanyanya. Iyi nzira hainyanyi kushandiswa.
(2) "Nzira yemvura" yerabha asphalt ndeyekusanganisa imwe huwandu hwehupfu hwerabha neasphalt kutanga, uye kuita pakupisa kwakanyanya kuita musanganiswa nezvimwe zvinhu. Parizvino ndiyo inonyanya kushandiswa nzira yekugadzira rubber asphalt.
(3) "Asphalt depot yekusanganisa nzira" inoreva kusanganiswa kwemarara erabha poda neasphalt inopisa munzvimbo yekuchenesa kana asphalt depot, wozoendesa kune asphalt kongiri yekusanganisa chiteshi kana nzvimbo yekuvaka. "Asphalt depot yekusanganisa nzira" inogona kunyatso kutorwa semhando ye "wet method" kugadzirwa, asi tsvina yerabha poda yekushandiswa kazhinji haipfuure 10%, kushandiswa kwerabha poda kwakadzikira, uye viscosity yakaderera pane yerabha asphalt. ("wet method" kugadzira). Musanganiswa wakavhenganiswa haugone kuita zvakafanana nerubber asphalt musanganiswa.
Ndezvipi zvakanakira rubber asphalt zvichienzaniswa neyakajairika asphalt?
1. Anti-reflective cracks
Mune rabha asphalt stress absorption layer, yakakwira yakawanda yerabha asphalt inosungirirwa zvakasimba nematombo ehukuru hwechikamu chimwe chete kuti igadzire dhizaini rekuratidzira chimiro chinenge 1cm mukobvu. Kutsemuka kwakasiyana-siyana mumvura-yakagadzika mbiru kana yekare simende pavement ichawana zvakaoma kupinza iyi layer, iyo inogona kunyatso kudzikamisa kuratidzwa kwekutsemuka.
2. Anti-mvura kukanganisa
Nhamba yerabha asphalt yakakura (2.3kg / m2), uye firimu reasphalt rinenge 3mm ukobvu huchaumbwa pamugwagwa wepamusoro, izvo zvinogona kudzivirira zvachose mvura inonaya kuti ipinde pasi uye kudzivirira mugwagwa. Kechipiri, kana uchigadzira asphalt musanganiswa pairi, iyo asphalt yerabha iri pamusoro peiyo asphalt stress absorption layer inonyunguduka kechipiri, uye mushure mekunge nzira yemugwagwa yaumbwa, ichazadza gap pazasi pemusanganiswa wepamusoro. , nokudaro kubvisa mukana wekuchengetedza mvura pakati pezvikamu uye kudzivirira kukanganisa kwemvura.
3. Bonding effect
Rubber asphalt ine super yakasimba viscosity. Inogona kuve yakashongedzwa uye yakasungirirwa kumvura-yakagadzikana layer kana yekare simende pavement yakasimba kwazvo, nekudaro ichitamba basa rekubatanidza nepamusoro pemugwagwa.