Puas yog asphalt khoom lossis kua?
Puas yog asphalt khoom lossis kua?

Video: Puas yog asphalt khoom lossis kua?

Video: Puas yog asphalt khoom lossis kua?
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Anonim

Asphalt , los yog bitumen , yog nplaum, dub thiab khov heev ua kua los yog semi- khov kho , yuav luag tag nrho cov roj av. Nws yog tam sim no nyob rau hauv feem ntau cov roj av petroleums thiab hauv qee qhov tso nyiaj ntawm ntuj. Nws yog cov khoom uas ua rau La Brea tar pits.

Kuj nug, yam khoom siv twg yog asphalt?

Asphalt yog ib qho kev sib xyaw khoom ua los ntawm cov ntxhia aggregates thiab bitumen feem ntau siv rau txoj kev, chaw nres tsheb thiab tshav dav hlau. Asphalt tseem hu ua blacktop.

Ib tus kuj tseem yuav nug tau, kua asphalt yog dab tsi? Asphalt (qee zaum hu ua " kua asphalt ”, “ asphalt cement "lossis" asphalt binder") yog nplaum, dub thiab nkig heev kua los yog semi-solid daim ntawv ntawm roj av. Tej zaum nws yuav pom nyob hauv cov nyiaj tso los ntawm ntuj lossis tej zaum yog cov khoom ua kom huv; nws yog ib yam khoom classed raws li lub suab.

Tib neeg kuj nug, puas yog asphalt thiab bitumen tib yam?

Bitumen yog cov kua binder uas tuav asphalt ua ke. A bitumen -sealed nto yog ib txheej ntawm bitumen sprayed thiab ces npog nrog ib tug aggregate. Asphalt yog tsim hauv cov nroj tsuag uas ua kom sov, qhuav thiab sib xyaw ua ke, bitumen thiab xuab zeb rau hauv kev sib xyaw. Nws yog txhua yam zoo kom nkag siab qhov sib txawv ntawm ob.

Puas muaj qib sib txawv ntawm asphalt?

Nyob ntawd yog peb qib sib txawv muaj nyob rau hauv asphalt . Cov qib muaj yog I-2, tseem hu ua puag; I-5, paub tias yog sab saum toj; thiab I-4 lossis kev lag luam saum toj qib . Qhov txawv ntawm tsob ntoo qib yog tias I-2 lossis lub hauv paus muaj ¾ ntiv tes ntawm pob zeb. Lub hauv paus qib feem ntau yog siv rau hauv pob kws stabilizing qib.

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