Yob vov tsev cov ntaub ntawv. Zoo, cov disadvantages, lub ntsiab hom

Yob vov tsev cov ntaub ntawv yog lug siv nyob rau hauv lub apparatus ntawm lub-ru tsev. Lub-ru tsev ntawm no yog ib qho ntawm feem pheej yig thiab yooj yim nyob rau hauv raug technology. Txawm tias tus kwv tij cheapness, Yog hais tias tag nrho cov technology plaub-txheej txheej ntawm vov tsev cov ntaub ntawv uas yuav zoo ib yam li, thiab hlau ru tsev ntawm galvanized hlau. Txawm li cas los, lub-ru tsev ntawm vov tsev cov ntaub ntawv uas muaj ib tug tseem ceeb drawback - mas cov.

Mos vov tsev cov ntaub ntawv stacked ob peb khaubncaws sab nraud povtseg, txhua tus uas yog ib txog kev ua. Backsheet yog uncoated khoom (hauv ob sab phlu), thiab lub - coverslips. Lub ntsiab feature ntawm yuav tsum vov ntaub ntawv - yog lub xub ntiag ntawm lub txheej uas muaj posypku (hmoov av zoo li, zoo-grained los yog ntxhib-grained) thiab refractory bitumen.

Cov feem ntau siv yob vov tsev cov ntaub ntawv - nws yog asphalt, vov tsev ntsoov thiab vov tsev cov ntaub ntawv uas. Lawv yog cov heev yooj yim kom haum. Lawv yog siv nyob rau hauv ru tsev nrog ib tug me ntsis nqes hav nyob rau hauv ib-daim puag.

Ib tug ntawm lub ntsiab thaj chaw ntawm mos vov tsev cov ntaub ntawv - cov dej-resistant. Qhov no tej khoom vaj tse yog khaws cia tsuas yog nyob rau hauv tag nrho cov kev ncaj ncees ntawm cov khoom, i.e. hauv lub qhaj ntawv ntawm lub kua muag thiab tej kab nrib pleb.

Yuav kom lub-ru tsev kom tau ib tug zoo, check, yob vov tsev cov ntaub ntawv yuav tsum tau raws li cov qauv hauv qab no:

• Rhuav lub zog (cov ntaub ntawv uas nraus rau hauv ib daim hlab ntawm 5 cm, thiab lub ntau kev rau siab yog li thov, lub zog cov ntaub ntawv uas);
• cov ntaub ntawv uas kuj yuav kub;
• yooj ntawm cov ntaub ntawv uas twb soj ntsuam los ntawm cov qis tshaj kub uas tsis muaj tej kab nrib pleb ntawm lub khoov ntawm lub pas nrig.

Vov tsev cov ntaub ntawv. hom

Nyob rau hauv lub substrate, yob vov tsev cov ntaub ntawv Muaj cov nram qab no:

• rau canvas qauv - yooj yim thiab baseless;
• hom Cheebtsam ntawm lub txheej muaj pes tsawg leeg - polymer, bitumen, bitumen-polymer;
• los ntawm hom cov me nyuam yaus - duab los qhia, asbestos, fiberglass, yas thiab puas;
• nyob rau hauv cov qauv ntawm cov kev tiv thaiv txheej - nrog ib tug ntawv ci los yog zaj duab xis, ib tug flake, pulverized, ntxhib, zoo-grained.

Tsis tas li ntawd, nyob ntawm seb lub binders, lawv yog polymer-bitumen los yog bitumen.

Bituminous vov tsev cov ntaub ntawv muaj uas tsis muaj nqi thiab qis zoo rau sravneniiyu nrog polymer-bitumen. Lub disadvantage yog cov uas tsis muaj te kuj. Txawm li cas los, qhov no cov ntaub ntawv uas yog feem ntau siv rau cov internal qauv ntawm cov waterproofing vim dej kuj.

Polymer-bitumen vov tsev yob ntaub ntawv muaj ntau dua cov kev pab cuam tshaj yav dhau los sawv daws yuav. Txawm li cas los, lawv cov nqi yog siab dua. Lawv muaj ib tug high degree ntawm durability thiab kev cia siab, resistant rau siab heev thiab tsis muaj peevxwm. Cov qualities yog decisive nyob rau hauv lub xaiv ntawm vov tsev cov ntaub ntawv mus rau lub hnyav climatic tej yam kev mob ntawm peb lub teb chaws. Cov ntaub ntawv yuav kav mus txog 25 xyoo, kawm ntau lawm technology thiab pw lub-ru tsev.

Nrog ib tug txaus ntau yam ntawm vov tsev cov ntaub ntawv uas bitumen-polymer yob yog ib lo lus tshiab nyob rau hauv niaj hnub ru tsev npog. Txawm li cas los, thaum xaiv koj yuav tsum muaj ua ntej thiab txiav txim siab dab tsi tseem ceeb: nqi los yog zoo?