Lub ntsiab qhob kev faib

Ib suam ntawm qhob yog raws li nyob rau hauv peb lub ntsiab no: los ntawm lub sij hawm, nyob rau ntawm ib tug nruab nrab ceev, raws li zoo raws li los ntawm hom ntawm phau ntawv nyob rau hauv lub ntoos sib xyaw. Rau nws npaj lub hom phiaj, qhov no cov ntaub ntawv uas yuav ua tau muab faib mus rau hauv ib tug plurality ntawm subclasses. Piv txwv li, nyob rau hauv ib co tej yam kev mob xav tau ntau dua thaum tshav kub kub kuj, nyob rau hauv lwm yam -. Tej yam kuj, thiab lwm yam Nyob rau hauv txhua rooj plaub, lub pom muaj pes tsawg leeg yog xaiv uas tsis tso cai rau cov qauv los cev qhuav dej thaum lub sij hawm lub lag luam.

Nyob rau hauv dav dav, lub nram qab no faib ua vaj tse ua rau lub hom phiaj:

- tshwj xeeb lub hom phiaj ntaub ntawv (siv nyob rau hauv siab tawg tej yam kev mob nyob rau hauv acidic ib puag ncig, thiab cov zoo li);

- rau pavement sib tov, txoj kev, airfields;

- ib txwm ua vaj tse (nws yog ua cov me nyuam yaus, cov plag tsev, ib tug ntau yam ntawm kev reinforced lug);

- hydraulic kuaj (siv rau kev tsim ib tug dej phwj, dams, canals, thiab lwm yam).

Ib suam ntawm qhob ceev yog nyob ntawm seb hom ntawm ntxhib aggregates nkag tau rau hauv muaj pes tsawg leeg. Yog hais tias lub sib tov yog pumice, tuff, thiab lwm yam ntxeem tau povntawv, tej zaum nws yuav luj los ntawm 0.5 mus 1.8 tonnes ib cubic Meter (Hnav concretes, xws li ib tug slag ua vaj tse, pumice pob zeb, txhab av nplaum). Nyob rau hauv thiaj li yuav tau ib tug tshwj xeeb hnyav kuaj (ntau tshaj li 2.5 tons / cu. 'Meter') nkag tau rau hauv cov pob zeb, hlau filings. Tej mixtures siv nyob rau hauv cov creation ntawm kev tiv thaiv lug. Heavy qhob (1.8-2.5 tons / cu. 'Meter') yog muaj li ntawm diabase, granite los yog limestone.

Qhob Classification kuj muaj ib sib tov ntawm ultra-lub teeb, zoo li aerated qhob, aerated qhob los yog foamed silicate. Lawv cov luj ib cubic Meter ntawm tsawg tshaj li ib nrab ib tug ton. Qhob ntawm no hauv chav kawm ntawv vim lub zog cellularity muaj tsawg thermal conductivity, tab sis tsis tshua muaj zog thiab nyob rau tib lub sij hawm. Yog li ntawd cia li, lawv yog siv raws li txojkev cov ntaub ntawv.

qhob Classification los ntawm hom ntawm losis tswvyim dabtsi agents ntau tshaj uas nws kim heev. Feem ntau cov uas tsis yog-loj hlob cov neeg ua hauj hnub no yog silicates nrog cov qauv ntawm cov tua nyob rau hauv ib tug autoclave. Tsis tas li ntawd ncaw pom mixtures raws li nyob rau hauv cov dej iav, stekloschelochnyh cheebtsam uas yuav tsum tau rau cov tsim ntawm tshav kub resistant qhob.

Feem ntau yog cov ntaub ntawv raws li nyob rau hauv gypsum, ntawm uas ua rau trim qhov chaw, nrog cov phab ntsa, thiab kom tau ib tug sib tov ntawm dej-resistant coatings. Nyob rau hauv tas li ntawd, muaj yog lug siv nyob rau hauv cement qhob (xws li Portland MAAs), slag-alkaline (a tus tshiab cov khoom nyob rau hauv kev tsim kho kev ua lag luam), polymer muaj pes tsawg leeg.

Classification thiab thaj chaw ntawm qhob uas yuav tsum tau nyob rau hauv kev txiav txim los mus txiav txim qhov yooj yim tsis ntawm sib tov thiab lub neej yav tom ntej tsim. Nyob rau hauv kev, xws compositions yog cais cov yam ntxwv xws li cov muaj (cov muaj peev xwm ntws nyob rau hauv nws tus kheej yuag), dej kuj (a siab uas ib tug qauv ntawm 0.15 meter yog dej), thiab cov uas yog tseem ceeb heev rau Lavxias teb sab, te. Piv txwv li, qhob F1000 npav yuav mas phav phav ntawm thaw-thaw mus, uas yog tshwj xeeb tshaj yog ib qho tseem ceeb nyob rau hauv cov cheeb tsam nrog tsis ruaj tsis khov huab cua, thiab ib tug qauv ntawm F50 - tsuas yog 50 xws cycles.