Cov ntaub ntawv vov tsev yog siv dav hauv kev tsim kho lub ru tsev. Lub ru tsev ntawm lawv yog ib qho pheej yig tshaj plaws thiab yooj yim ntawm kev tsim tshuab. Txawm hais tias tus txheeb ze pheej yig, nrog rau kev ua raws li tag nrho cov thev naus laus zis, plaub txheej txheej ntawm cov khoom siv vov tsev yuav ua haujlwm ntev npaum li lub ru tsev hlau ua los ntawm galvanized steel. Txawm li cas los xij, lub ru tsev ua los ntawm cov khoom siv vov tsev muaj ib qho teeb meem tseem ceeb - nws yog cov nplaim taws heev.
cov ntaub ntawv vov tsev mos yog muab tso rau hauv ob peb txheej, txhua tus muaj cov haujlwm tshwj xeeb. Cov txheej hauv qab yog cov ntaub ntawv tsis muaj npog (hauv ob sab phlu), thiab cov txheej saum toj kawg nkaus yog npog. Lub ntsiab feature ntawm txheej txheej yog lub xub ntiag ntawm ib txheej uas muaj hnav khaub ncaws (pulverized, nplua-grained los yog coarse-grained) thiab refractory bitumen.
Cov ntaub ntawv uas siv ntau tshaj plaws yog cov iav iav, vov tsev thiab cov khoom siv vov tsev. Lawv yooj yim heev kom haum. Lawv siv rau ntawm lub ru tsev nrog txoj kab nqes me ntsis ntawm lub hauv paus ruaj khov.
Ib tugCov khoom tseem ceeb ntawm cov khoom siv vov tsev yog cov dej nruj. Cov cuab yeej no tsuas yog khaws cia nrog kev ua tiav ntawm cov khoom siv, uas yog, tsis muaj qhov khoob thiab tawg.
Yuav kom lub ru tsev zoo thiab ruaj khov, cov ntaub ntawv yob vov tsev yuav tsum ua raws li cov hauv qab no:
- lub zog ntawm kev tawg (cov khoom raug torn rau hauv ib daim hlab ntawm 5cm, thiab siv zog ntau dua, cov khoom muaj zog dua);
- khoom tiv thaiv tshav kub;
- Kev hloov pauv ntawm cov khoom raug ntsuas los ntawm qhov ntsuas kub qis tshaj plaws uas cov kab nrib pleb tsis tshwm sim thaum khoov ntawm tus pas nrig.
cov ntaub ntawv vov tsev. Hom
Nyob ntawm lub hauv paus, cov ntaub ntawv vov tsev yog cov hauv qab no:
- raws li tus qauv tsim ntawm canvas - baseless thiab yooj yim;
- los ntawm hom khoom ntawm txheej txheej - polymer, bitumen, bitumen-polymer;
- los ntawm hom puag - duab los qhia, asbestos, fiberglass, polymer thiab ua ke;
- raws li cov qauv ntawm txheej tiv thaiv - nrog ntawv ci lossis zaj duab xis, nrog scaly, plua plav, coarse-grained, nplua-grained.
Tsis tas li, nyob ntawm cov khoom sib txuas, lawv yog polymer-bitumen lossis bituminous.
cov ntaub ntawv vov tsev bitumen muaj tus nqi qis thiab qis dua piv rau polymer-bitumen. Qhov tsis zoo yog qhov qis ntawm Frost tsis kam. Txawm li cas los xij, cov khoom siv no feem ntau yog siv rau kev tiv thaiv sab hauv ntawm cov tsev, vim muaj dej tsis kam.
Polymer-bitumen vov tsev yobcov ntaub ntawv muaj ntau yam zoo dua li yav dhau los. Txawm li cas los xij, lawv tus nqi kuj tseem siab dua. Lawv muaj cov qib siab ntawm lub zog thiab kev ntseeg siab, tiv taus qhov kub thiab txias heev. Cov kev zoo no yog qhov txiav txim siab thaum xaiv cov ntaub ntawv vov tsev rau cov huab cua hnyav ntawm peb lub teb chaws. Cov ntaub ntawv no tuaj yeem siv tau li ntawm 25 xyoo, raws li kev siv tshuab tsim thiab tso lub ru tsev.
Nrog rau ntau yam khoom siv vov tsev, bitumen-polymer yob yog lo lus tshiab niaj hnub hauv vov tsev. Txawm li cas los xij, thaum xaiv, koj yuav tsum ua qhov tseem ceeb ntawm koj tus kheej thiab txiav txim siab seb qhov twg yog qhov tseem ceeb tshaj rau koj: nqe lossis zoo?
