Raws li cov kev tshawb fawb dhau los thiab kev tshawb nrhiav kev ua haujlwm muaj kev cuam tshuam los ntawm kev sib tw, thiab phov pheeb suab, ua rau muaj kev sib tw, ua rau muaj kev sib tw thiab tsis yooj yim. Nrog kev yaig ntawm cov asphalt, tus muaj ntsis muaj hnub nyoog siab ua rau nws cov ntsiab lus. Asphaltememement nkag mus rau theem laus vim yog cov huab cua, uas lub pob zeb tau raug rau cov khoom me me ntawm txoj kev pavement.

Bitumen yog cov kua dub thiab muaj kuab heev lossis ib nrab khoom ntawm cov roj av. Tej zaum nws yuav pom nyob hauv cov ntxhia pob zeb. Lub ntsiab siv asphalt (70%) yog nyob rau hauv kev kev tsim kev, raws li phau ntawv los yog nplaum rau asphalt qhob. Nws lwm qhov kev siv lub ntsiab yog nyob rau hauv asphalt waterproofing khoom, suav nrog vov tsev noo-pov thawj-pov thawj rau cov ru tsev tiaj tiaj.

Hauv Asphalt ntau lawm, txheej txheem ntsuas kub yog qhov tseem ceeb hauv kev cog cog qoob loo thiab cov khoom ntawm cov kub sib tov. Txhawm rau kom paub meej tias lub sijhawm ntev ntawm txoj kev pavement, tus ntsuas kub yuav tsum tau saib xyuas thaum lub sijhawm sib xyaw ua haujlwm thiab thaum cov kub sib tov yog ?? thau khoom. Txhawm rau kom ntseeg tau tias qhov ntsuas kub tseem nyob hauv kev txwv tshwj xeeb thaum cov khoom siv tau xa mus rau lub tshuab tov khoom, qhov kub yog kev soj ntsuam qhov twg cov ntaub ntawv tawm ntawm lub nruas. Qhov cub tawg yog tswj tau raws li cov ntaub ntawv no. Qhov no yog vim li cas cov khoom siv rau asphalt tov kev siv pyrometers rau cov ntsuas ntsuas ntsuas thiab tswj qhov ntsuas kub.

Txoj kev tsim qauv ntawm kev hloov ua Asphalt txoj kev mas suav nrog cov kauj ruam hauv qab no:

Asphalt txias thaj kev kev siv yog ib qhov project uas muaj feem nrog ntau cov kauj ruam thiab cov ntsiab lus tseem ceeb. Cov hauv qab no yog cov lus qhia ntxaws ntxaws rau cov txheej txheem kev tsim kho:

Nyob rau hauv qhov teeb meem tam sim no ntawm kev txhim kho txuas ntxiv ntawm ntau yam kev lag luam, emulsion bitumen cog tau tsim ntxiv thiab thov. Peb paub tias emulsion bitumen yog emulsion uas yog kua ntawm chav tsev kub tsim los ntawm dispersing aspersing asphalt mus rau hauv dej. Raws li kev paub cov khoom tshiab uas muaj ntau dua 50% ntawm lub zog thiab 10% -20% ntawm asphalt piv nrog kev ua pa kub asphalt, thiab muaj cov pa phem ib puag ncig.