Cov kev niaj hnub thiab cov kev hloov pauv tau nce ntxiv, cov kev tsav tsheb tau nce ntxiv, thiab cov kev ua haujlwm ntawm cov khoom siv hloov kho tau ntau dua nyob rau hauv cov peev txheej kub siab;
Txhim kho kev softness thiab tawv, uas yog, muaj peev xwm tiv taus tawg ntawm tsawg kub; Txhim kho cov hnav tsis kam thiab txuas ntxiv lub neej pabcuam. Niaj hnub no vaj tse siv ntev-luv tau prestressed steel ruent, uas yuav tsum muaj sab nrauv cov ntaub ntawv waterproofing yuav tsum tau ua ke rau cov khoom siv loj. Lawv kuj tseem tuaj yeem tiv thaiv nruj thiab muaj huab cua sov tsawg, muaj kev ua haujlwm zoo dua, ua kom yooj yim siv, thiab txo kev ua haujlwm.

Qhov kev hloov no los ntawm kev siv ntuj ib puag ncig pom kev cov nyom loj rau kev ua tau zoo ntawm hloov kho cov khoom siv bitumen. Cov neeg tau txuas nrog qhov tseem ceeb kom hloov cov ntaub ntawv Bitumen hloov kho kom haum lawv rau cov kev siv hluav taws xob saum toj no. Hloov Bitumen cog waterprof cov ntaub ntawv thiab cov cuab yeej tsim duab kos duab feem ntau yog ua rau cov tswv yim hauv qee cov haujlwm engineering.
Txawm li cas los xij, vim tias tus nqi ntawm raw cov ntaub ntawv tom qab cov khoom siv bitumen feem ntau, cov neeg siv khoom siab dua li cov khoom siv uas ua rau lub cev muaj zog ntxiv. Niaj hnub no txoj kev hloov kho txoj kev me me yog siv rau kev pua chaw nyob hauv cov chaw tshwj xeeb, cov chaw nres tsheb hauv av, cov chaw ua si hnyav, cov ces kaum kev sib tshuam. Nyob rau lub sijhawm no, bitumen qhob tau thov rau kev saib xyuas thiab qhov cuab lub zog ntawm txoj kev tes haujlwm, uas tau nce qib kev hloov pauv ntawm kev hloov kho cov khoom ntawm Bitumen.