Kuv paub tias koj tab tom nrhiav cov khoom siv txhim khu kev qha, thiab cov ntsiab lus "siab" thiab "tsis muaj zog" yuav tsis meej pem. Tsis txhob txhawj xeeb- hnub no peb yuav tsis tham txog cov kev ntsuas qhuav. Hloov chaw, kuv xav coj koj mus rau hauv peb lub Hoobkas rau kev sib tham tus phooj ywg thiab qhia koj li cas lub rooj tsavxwm zoo yog "forged." Thaum kawg, koj yuav nkag siab qhov sib txawv.
Koj tuaj yeem xav txog cov txheej txheem fiber ntau cement board ua cov ci ci.
Cov boards uas tsis muaj zog yog zoo li lub khob cij ci hauv tsev.
Peb sib tov raw cov ntaub ntawv xws li fiber ntau, cement, thiab dej, ncuav sib tov rau hauv pwm, thiab cia nws solidify thiab kho ib txwm. Cov txheej txheem no yog ib qho yooj yim, thiab cov qauv sab hauv ntawm cov khoom yog me ntsis xoob-zoo li cov qhob cij hauv tsev nrog cov pores loj uas tsis ntom heev. Boards ua li no feem ntau hu ua "pressureless boards" los yog "naturally cured boards."
Lawv muaj txiaj ntsig ntawm kev lag luam, tab sis lawv kuj muaj cov kev txwv loj; they have low density meaning lower density (weight) strength, and there can be a number of small voids in the internal structure. Nyob rau hauv cov ntaub ntawv ntawm dej adsorption, lawv tuaj yeem nqus dej tau yooj yim dua. Tsis tas li ntawd, cov khoom siv yuav tsis ua haujlwm zoo li hauv kev cuam tshuam kev thauj khoom. Lawv tsim nyog rau cov ntawv thov uas tsis tas yuav muaj lub zog siab, xws li ceilings lossis yooj yim partitions.
Fiber cement siab boards, ntawm qhov tod tes, tau ua tiav ntau dua li cov khob cij ua hauv cov khob cij tshwj xeeb, ua raws li cov txheej txheem "siab- kev pov thawj siab".
Nyob rau hauv peb lub Hoobkas, tom qab cov ntaub ntawv raw yog sib xyaw thiab txheej, lawv tau muab tso rau hauv ib qho loj, tsim tshwj xeeb xovxwm. Cov xovxwm no siv lub zog loj heev - txhiab (lossis kaum txhiab tons) ntawm lub siab! Picture it as if huge hands were pushing on all of the fiber and cement particles that comprise the raw material, squeezing them into a mass, removing any air pockets/difference in density and adhering them in such a way to bond each particle.
Cov txheej txheem no yog lub hauv paus chiv keeb ntawm lub npe "siab board" thiab cov tseem ceeb zais cia tom qab nws superior kev ua tau zoo.
Tom qab siab - lub siab nias, qhov ceev ntawm lub rooj tsavxwm yuav siab heev, uas ua rau cov qauv ntom ntom. Cov txiaj ntsig ntawm qhov no yog dab tsi?
Stronger "physique": High density txhais tau tias siab zog. Cov boards siab dua thiab muaj zog dua, muaj peev xwm tiv taus qhov cuam tshuam sab nraud ntau dua, thiab tsis tshua muaj kev tawg.
Zoo dua "dej tsis kam": Vim tias cov pores sab hauv yog compressed zoo heev, cov dej molecules muaj teeb meem nkag mus rau cov khoom siv.Vim cov cuab yeej no, cov khoom lag luam siab muaj qhov nqus dej tsawg kawg. Yog li ntawd, lawv yuav tsis o lossis hloov cov duab yooj yim hauv cov huab cua ntub; yog li ntawd, lawv yog cov kev xaiv zoo rau cov ntawv thov xws li cov phab ntsa hauv chav dej, phab ntsa sab nrauv, thiab siv hauv qab av uas muaj dej noo.
Kev ncua lub neej ntev: cov laug cam tsis tshua muaj peev xwm deform vim tias lawv cov compactness, tsis tau muaj kev tiv thaiv ntau dua rau khov -thaw cycles thiab corrosion dua li cov khoom siv. Lawv lub neej expectancy thaum muab tso rau sab nraum zoov thaum cua daj cua dub, tshav ntuj thiab los nag yog ntau dua li qhov siab ntawm - kho cov boards.
Yog li koj pom, txij li lub sijhawm ntawm kev tsim khoom, lub rooj tsavxwm siab thiab lub rooj tsavxwm tsis muaj zog tau pib rau txoj kev sib txawv. Ib qho yog ib txwm tsim- maj mam thiab yooj yim; lwm tus yog forged los ntawm cov txheej txheem nruj -resilient thiab ruaj khov.