Limela tsa asphalt tse matla li etselitsoe sekontiri sa majoe sa mastic
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Limela tsa asphalt tse matla li etselitsoe sekontiri sa majoe sa mastic
Nako ea ho Lokolla:2023-10-30
Bala:
Arolelana:
Limela tsa asphalt tsa matla li etselitsoe tlhahiso ea asphalt ea majoe 'me re na le module tsamaisong ea rona ea software.Hape re hlahisa cellulose dosing unit.Ka basebetsi ba rona ba nang le phihlelo, ha re fane ka thekiso ea limela feela, empa hape le ts'ehetso ea ts'ebetso ea morao-rao le koetliso ea basebetsi.

SMA e batla e le tšesaane (12.5–40 mm) e nang le lekhalo, e teteaneng, HMA e sebelisoang e le thupelo ea holim'a kaho e ncha le ho nchafatsa bokaholimo. Ke motsoako oa samente ea asphalt, aggregate e mahoashe, lehlabathe le pshatlehileng, le lisebelisoa. Metsoako ena e fapane le metsoako e tloaelehileng ea sehlopha sa HMA e teteaneng ka hore ho na le palo e kholoanyane ea kakaretso e mahoashe ka har'a motsoako oa SMA. E ka sebelisoa litseleng tse kholo tse nang le sephethephethe se seholo. Sehlahisoa sena se fana ka mokhoa oa ho roala o sa khoneng ho apara le ho hanyetsa ketso e hlabang ea lithaere tse koetsoeng. Sesebelisoa sena se boetse se fana ka botsofali butle le ts'ebetso e ntle ea mocheso o tlase.

SMA e sebelisoa ho holisa tšebelisano le khokahano lipakeng tsa karolo e kopaneng ea HMA. Samente ea asphalt le likarolo tse kopaneng tse kopaneng li fana ka mastic e ts'oereng lejoe le haufi. Moetso o tloaelehileng oa motsoako ka kakaretso o tla ba le 6.0–7.0% samente ea sekontiri se mahareng (kapa polymer-modified AC), 8–13% filler, 70% bonyane aggregate e kholo ho feta 2 mm (No 10) sieve, le 0.3–1.5% likhoele ka boima ba motsoako. Hangata likhoele li sebelisoa ho tsitsisa mastic, 'me sena se fokotsa ho tsoa ha binder motsoakong. Hangata li-voids li bolokiloe pakeng tsa 3% le 4%. Boholo ba boholo ba likaroloana bo tloha ho 5 ho isa ho 20 mm (0.2 ho 0.8 in.).

Ho kopanya, ho tsamaisa, le ho beoa ha SMA ho sebelisa lisebelisoa le litloaelo tse tloaelehileng ka mefuta e meng. Mohlala, mocheso o phahameng oa ho kopanya o ka bang 175 ° C (347 ° F) hangata oa hlokahala ka lebaka la kakaretso e mahoashe, li-additives, le asphalt e batlang e le holimo ka har'a metsoako ea SMA. Hape, ha ho sebelisoa likhoele tsa cellulose, nako ea ho kopanya e lokela ho eketsoa ho lumella ho kopanya hantle. Ho roala ho qala hang ka mor'a hore ho behoe ho finyella boima ka potlako pele mocheso oa motsoako o fokotseha haholo. Hangata compaction e etsoa ka tšebeliso ea lirolara tse mabili a tšepe tse boima ba lithane tse 9–11 (lithane tse 10–12). Vibratory rolling e ka boela ea sebelisoa ka hloko. Ha e bapisoa le HMA e tloaelehileng e teteaneng, SMA e na le khanyetso e ntle ea ho kuta, ho hanyetsa ho senya, ho hanyetsa ho phunyeha, le ho hanyetsa skid, 'me e lekana le tlhahiso ea lerata. Letlapa la 10.7 le emela papiso ea kabo ea SMA e sebelisoang United States le Europe.