Asphalt ntau yam piav no yog ua los ntawm ib tug qhia tshwj xeeb uas formulated nrog qhov tseeb kev faib ua feem ntawm tshwj xeeb Cheebtsam: xuab zeb, mineral hmoov, gravel ntawm txawv ntau thiab tsawg, raws li zoo raws li tej yam ntawm bitumen npaj rau txoj kev. Asphalt sib tov siv rau lub arrangement ntawm lub hauv paus thiab hau ntawm lub txojkev nyob rau hauv yuav luag tag nrho tej yam kev mob. Koj yuav pom ntau ntawm cov ntaub ntawv.
Asphalt sib tov yog muab faib mus rau hauv kub thiab txias rau lub hauv paus ntsiab lus ntawm stacking. Tus thawj yog cov feem ntau zoo-paub rau hnub tim, thiab yog nquag siv. Lawv installation yog ua nyob rau ntawm ib tug kub ntawm 140-170 degrees Celsius. Lub tiav lawm kub asphalt qhob sib tov yog tauj mus rau ib tug tshwj xeeb cov txheej txheem. Nws cawm cov muaj pes tsawg leeg kub. Thaum lub installation no tiav lawm, lub tsiaj hiav txwv yog ua los ntawm txhais tau tias ntawm asphalt chais. Tom qab muaj pes tsawg leeg hardens, tau txheej muaj siab zoo.
Kev npaj ntawm cov mixtures yog nqa tawm siv ib tug khov bitumen. Cov sib tov yuav tsum tau siv tam sim ntawd tom qab kev npaj, nws yuav ua tsis tau txias. Thaum pw asphalt kub yuav tsum 120 degrees los yog ntau tshaj. Qhov no technology yog siv rau tej kev ua hauj lwm thiab nyob rau hauv yuav luag tag nrho cov latitudes. Muaj me nta. Lub sab sauv khaubncaws sab nraud povtseg yog stacked nrog coatings siv losis tswvyim dabtsi ballasts uas factionalism yog 20-40 millimeters, uas muaj feem xyuam rau lub zuag qhia tag nrho tus nqi ntawm lub lag luam. Kub mix asphalt yog lub feem ntau enduring active lub sij hawm uas yuav ua tau tiav los ntawm kev siv ntawm bitumens. Nyob rau hauv no txoj kev, muaj ib qho tseem ceeb heev kom zoo dua - qhov qhib zog ntawm tus kho thaj chaw tej zaum yuav tam sim ntawd tom qab lub sib tov tau txias mus rau ambient kub, uas yog, nws yuav siv sij hawm xwb ob peb teev. Qhov no lub sij hawm txaus rau cov sib tov kom muaj lub sij hawm kom dhau ntawm txoj kev theem, tom qab uas nws yog npaj txhij rau lub lag luam.
Yog hais tias asphalt sib tov raug xaiv los ua cov ntaub ntawv uas rau kho ua hauj lwm rau txoj kev nto, lawv yuav tsum tau xaiv lub muaj pes tsawg leeg raws li nyob ze rau qhov muaj pes tsawg leeg niaj kho. Thaum lub tob ntawm lub defect mus rau tsib centimeters yog ua rau hauv ib lub txheej stacking, thiab ib tug khub ntawm ntug txaj yuav tsum tau siv ntau tshaj cov nyiaj potholes. Me deg hauv cheeb tsam no yuav tsum tau muab los ntawm txoj kev pneumatic khoom, thiab ntau uas nws kim heev - nrog vibrating Compactor.
Ntau hom kev asphalt mixtures siv rau kho thiab airfield Pavements, hydraulic lug, plag tsev thiab tiaj tus ru tsev. Yuav khoom ntawm tej ntaub ntawv yuav tsum tau nqa tawm nyob rau qhauj kev khiav hauj lwm nyob rau hauv nruj ua raws li nrog tag nrho cov kev siv technology tshiab nta ntawm lawv cov khoom, thiab tus nqi yuav pom. Nws yog to taub hais tias ib tug sib tov ntawm fine-grained asphalt qhob yog kim kim, raws li nws nruab nrab yog ib tug ntau dua zoo khoom npaj rau kev kho heev du chaw. Nyob rau hauv dav dav, lub nqi ntawm xws siv cov ntaub ntawv uas nyob ntawm ntau yam, xws li cov pej xeem tseem ceeb heev zoo, cov khoom thiab technology siv thaum lub sij hawm kev lag luam, raws li tau zoo raws li ob peb lwm yam.