1. Ibisobanuro bya powder ya rubber yahinduwe bitumen
Ifu ya reberi yahinduwe bitumen (bitumen Rubber, bita AR) ni ubwoko bushya bwibikoresho byo mu rwego rwo hejuru. Mubikorwa bihuriweho na bitumen iremereye cyane, ifu yipine ya rubber hamwe nivanga, ifu ya reberi ikuramo resin, hydrocarbone nibindi bintu kama muri bitumen, kandi igahinduka nuruhererekane rwumubiri na chimique kugirango ibe nziza kandi yongere ifu ya rubber. Ubukonje bwiyongera, ingingo yoroshye yiyongera, kandi ubwitonzi, ubukana, hamwe na elastique ya reberi na bitumen byitabwaho, bityo bikazamura imikorere yumuhanda wa rubber bitumen.
"Rubber powder yahinduwe bitumen" bivuga ifu ya reberi ikozwe mumapine yimyanda, yongeweho nkibihindura bitumen fatizo. Byakozwe binyuze murukurikirane rwibikorwa nkubushyuhe bwo hejuru, inyongeramusaruro hamwe nogosha kuvanga mubikoresho bidasanzwe. ibikoresho bifatika.
Ihame ryo guhindura ifu ya reberi yahinduwe bitumen ni ibikoresho byahinduwe na sima ya bitumen byakozwe nuburyo bwuzuye bwo kubyimba hagati yifu yifu ya rubber na matrix bitumen bivanze nubushyuhe bwo hejuru. Ifu ya reberi yahinduwe bitumen yazamuye cyane imikorere ya bitumen, kandi iruta bitum yahinduwe ikozwe muri modiferi zikoreshwa cyane nka SBS, SBR, EVA, nibindi. Urebye imikorere myiza n’uruhare runini mu kurengera ibidukikije, abahanga bamwe vuga ko ifu ya rubber yahinduwe bitumen biteganijwe ko izasimbuza SBS yahinduwe bitumen.
2. Ibiranga ifu ya rubber yahinduwe bitumen
Rubber ikoreshwa kuri bitumen yahinduwe ni polymer yoroheje cyane. Ongeramo ifu ya rubber ifata kuri bitumen ishingiro irashobora kugeraho cyangwa ikarenga ingaruka zimwe na styrene-butadiene-styrene block copolymer yahinduwe bitumen. Ibiranga ifu ya rubber yahinduwe bitumen harimo:
2.1. Kwinjira biragabanuka, ahantu horoha hiyongera, kandi ubukonje bwiyongera, byerekana ko ubushyuhe bwo hejuru bwa bitumen bwateye imbere, kandi ibintu byo guhindagurika no gusunika umuhanda mu cyi biratera imbere.
2.2. Ubushyuhe bukabije buragabanuka. Iyo ubushyuhe buri hasi, bitumen iba yoroheje, bigatera guhagarika umutima muri pavement; iyo ubushyuhe buri hejuru, pavement iba yoroshye kandi igahinduka bitewe nibinyabiziga bitwaye. Nyuma yo guhindurwa nifu ya reberi, ubushyuhe bwubushyuhe bwa bitumen buratera imbere kandi birwanya umuvuduko wacyo. Coefficient ya viscosity ya reberi yifu yahinduwe bitum iruta iya bitumen fatizo, byerekana ko bitum yahinduwe ifite imbaraga zo kurwanya ihindagurika.
2.3. Ubushyuhe buke bukorwa neza. Ifu ya reberi irashobora kunoza ubushyuhe buke bwa bitumen no kongera ubworoherane bwa bitumen.
2.4. Kongera imbaraga. Mugihe umubyimba wa firime ya rubber bitumen yometse hejuru yamabuye wiyongera, umuhanda wa bitumen urwanya kwangirika kwamazi urashobora kunozwa kandi ubuzima bwumuhanda burashobora kongerwa.
2.5. Mugabanye kwanduza urusaku.
2.6. Ongera gufata hagati yipine yimodoka nubuso bwumuhanda kandi utezimbere umutekano wo gutwara.