Rubber poda yakagadziridzwa bhitumeni (BitumenRubber, inodaidzwa kuti AR) imhando nyowani yemhando yepamusoro inoumbwa zvinhu. Irwo rudzi rutsva rwemhando yepamusoro-soro yakagadzirwa nerabha poda yakagadzirwa kubva kune tsvina matai, iyo inowedzerwa sechigadziridzo kune base bitumen. Iyo inogadzirwa kuburikidza neakatevedzana ezviito senge tembiricha yakakwira, additives uye shear kusanganiswa mune yakakosha midziyo. Material. Inogona kuwedzera hupenyu hwesevhisi yemugwagwa, kuderedza ruzha, kuderedza vibration, kunatsiridza kugadzikana kwemafuta uye kuputika kwemafuta, uye kugadzirisa icing kuramba. Pasi pekuita kwakasanganiswa kwebhitumini inorema, tsvina yerabha poda uye zvakasanganiswa, poda yerabha inotora resin, mahydrocarboni uye mamwe maorganic matter mubhitumini, uye inopinda munhevedzano yekuchinja kwemuviri nemakemikari kunyorovesa uye kuwedzera hupfu hwerabha. Iyo viscosity inowedzera, kupfava kunowedzera, uye viscosity, kusimba, uye elasticity yerabha nebhitumini zvinotariswa, nekudaro kuvandudza mashandiro emugwagwa werabha bhitumeni.
"Rubber poda yakagadziridzwa bhitumeni" inoreva hupfu hwerabha hwakagadzirwa kubva mumarara matai, iyo inowedzerwa sechigadziriso kune hwaro bhitumeni. Iyo inogadzirwa kuburikidza neakatevedzana ezviito senge tembiricha yakakwira, additives uye shear kusanganiswa mune yakakosha midziyo. adhesive zvinhu.
Iyo yekugadziridza musimboti werabha poda yakagadziridzwa bhitumini yakagadziridzwa bhitumeni simende zvinhu inoumbwa nekuzara kuzvimba kuita pakati pevhiri rabha poda zvimedu uye matrix bhitumeni pasi pemamiriro akasanganiswa epamusoro-tembiricha. Rubber poda yakagadziridzwa bhitumeni yakavandudza zvikuru maitirwo ebhitumeni, uye inopfuura bhitumeni yakagadziridzwa yakagadzirwa nemamodhifiri anowanzo shandiswa seSBS, SBR, EVA, nezvimwewo. Nekuona kushanda kwayo kwakanaka uye kubatsira kukuru mukuchengetedzwa kwezvakatipoteredza, dzimwe nyanzvi. kufanotaura kuti rabha poda yakagadziridzwa bhitumeni inotarisirwa kutsiva SBS yakagadziridzwa bhitumini.
advantage

Rubber poda inogona kuwedzerwa kubhitumini mukuvaka migwagwa uye Expressways. Chikumbiro ichi hachina kuitirwa pakutanga sepokuburitsira mavhiri emarara, asi kuti kuvandudza zvimiro zvebhitumini kusvika padanho rakafanana nerebhitumini remhando yepamusoro rine elastomer itsva. Zvakanakira kuwedzera rubber powder kune bitumen zvinosanganisira kuderedza maitiro emugwagwa wekuputika (kunyanya munzvimbo dzinotonhora), kuvandudza kusimba kwemugwagwa, kudzivirira kwayo kwemvura uye kugadzikana kwematombo. Bhitumeni yakagadziridzwa rabha yakasimba, inogara avhareji yemakore manomwe kureba kupfuura misanganiswa yebhitumini yechinyakare.?
Rabha rinoshandiswa kugadzirisa bhitumini i polymer ine elastic yakanyanya. Kuwedzera vulcanized rabha poda kune base bhitumeni kunogona kuwana kana kutopfuura mhedzisiro yakafanana ne styrene-butadiene-styrene block copolymer modified bitumen. Hunhu hwerabha poda yakagadziridzwa bhitumeni inosanganisira:
1. Kupinda kunoderera, kunyorova kunowedzera, uye viscosity inowedzera, zvichiratidza kuti kugadzikana kwepamusoro kwebhitumini kunovandudzwa, uye inogona kuvandudza rutting uye kusundira zviitiko mumugwagwa panguva yekutyaira kwezhizha.
2. Kunzwa kwekushisa kunoderedzwa. Kana kutonhora kwakaderera, bhitumini inova brittle, zvichiita kuti kunetseka kutsemuka mumugwagwa; kana tembiricha yakakwira, mugwagwa unova wakapfava uye unokanganisa pasi pesimba remotokari dzinoitakura. Mushure mekushandurwa nehupfu yerabha, kutaridzika kwekushisa kwebhitumini kunovandudzwa uye kuyerera kwayo kunopesana kunovandudzwa. The viscosity coefficient of the rubber powder modified bitumen yakakura kudarika yebhitumeni yepasi, zvichiratidza kuti bhitumini yakagadziridzwa ine kupikisa kwepamusoro kuyerera kuyerera.
3. Kuderera kwekushisa kwekushanda kunovandudzwa. Rubber poda inogona kuvandudza yakaderera-tembiricha ductility yebhitumini uye kuwedzera kuchinjika kwebhitumini.
4. Kuwedzerwa kunamatira. Sezvo kukora kwerabha bhitumeni firimu yakanamatira pamusoro pedombo kunowedzera, kuramba kwebhitumu pavement kukuvadzwa kwemvura kunogona kuvandudzwa uye hupenyu hwemugwagwa hunogona kuwedzerwa.
5. Deredza kusvibiswa kweruzha.
6. Wedzera kubata pakati pematairi emotokari uye mugwagwa wepamusoro uye uvandudze kuchengetedzwa kwekutyaira.
kuperevedza
Zvisinei, kushandiswa kwehupfu hwerabha nenzira iyi kunowedzera mari yebhitumini, uye kuwedzerwa kwehupfu yerabha kubhitumini kunoita kuti musanganiswa webhitumini uome zvikuru kubata (nyore kunamatira) uye inowedzera nguva yekushanda. Dzimwe nguva bhitumini ine yakawanda yehupfu yerabha iri nyore kubata moto panguva yekunyunguduka, saka zvinokurudzirwa kuti zvinyorwa zverabha powder mu rubber modified bitumen zvinofanira kunge zvisingasviki 10%.