Lub volumetric hnyav ntawm pob zeb yog ib qho ntawm cov cim tseem ceeb thiab tseem ceeb tshaj plaws, raws li qhov kev ntsuam xyuas zoo ntawm nws lub cev thiab cov yam ntxwv thiab cov khoom, cov qauv thiab cov khoom sib xyaw ua tiav. Yog tias cov qauv tsim thiab cov tsev tsim tau siv cov khoom siv sib zog, lawv yuav pheej yig dua thaum tsim kho, tab sis tib lub sijhawm khaws lawv lub zog thiab kav ntev. Nws yuav tsum tau muab sau tseg tias nyob rau hauv cov ntaub ntawv no tsis tsuas yog raw cov ntaub ntawv tau txais kev cawmdim, tab sis kev thauj mus los thiab lub zog nqi kuj raug txo. Qhov hnyav ntawm pob zeb ncaj qha nyob ntawm qhov ntom ntawm cov kev daws teeb meem, nrog rau cov cim qhia uas qhia txog cov aggregates siv hauv cov txheej txheem ntawm nws cov khoom. Hauv lwm lo lus, nrog rau qhov nce hauv qhov loj ntawm cov ntsiab lus, tib qhov taw qhia ntawm kev daws nws tus kheej nce, thiab rov ua dua.
Cov pob zeb hnyav tshaj plaws
Cov sib tov hnyav heev tau txais yog tias cov khoom siv ntawm cov tshuaj yog cov khoom tsim nyog, feem ntau muaj hlau. Nws lub luag haujlwm feem ntau yog ua los ntawm cov hlau ore, cam khwb cia hlau txhaj tshuaj, barite, limonite thiab lwm yam. Hauv qhov no, qhov hnyav ntawm ib lub cubic meter ntawm pob zeb tuaj yeem tshaj li ob thiab ib nrab txhiab kilograms. Xws li kev sib tov feem ntau ua haujlwmlos tiv thaiv scientific thiab industrial vaj tse thiab cov qauv los ntawm kev nkag mus ntawm hluav taws xob. Nws yuav tsum tau muab sau tseg tias nyob rau hauv cov ntaub ntawv no ib tug loj npaum li cas ntawm hydrant (chemically khi) dej kuj ntxiv rau cov muaj pes tsawg leeg ntawm cov tshuaj. Nyob rau hauv lub luag hauj lwm ntawm fillers, ntom pob zeb nyob rau hauv crushed daim ntawv yuav siv tau. Cov no yog quartz, bas alt, limestone los yog granite xuab zeb, nrog rau pob zeb thiab crushed marble. Nyob rau hauv cov ntaub ntawv no, qhov hnyav ntawm ib lub voos xwmfab ntawm pob zeb yog nyob rau hauv thaj tsam ntawm 1800 mus rau 2500 kilograms, thiab cov sib tov nws tus kheej yog cais raws li hnyav. Nws yuav tsum raug sau tseg tias qhov no yog ntau yam ntau yam, uas feem ntau hu ua "kev tsim vaj tsev dav dav". Nws yog siv rau hauv kev tsim vaj tsev thiab cov qauv, nrog rau thaum lub sij hawm casting ntawm ntau yam khoom siv ntxiv dag zog.
Lub teeb pob zeb
chav kawm tom ntej no yog kev sib xyaw ua ke. Lub volumetric hnyav ntawm pob zeb (ib cubic meter) nyob rau hauv cov ntaub ntawv no yog nyob rau hauv thaj tsam ntawm 500 mus rau 1800 kilograms. Hauv nws qhov chaw tsim khoom, cov fillers yog cov khoom ntxeem tau ntawm lub hauv paus chiv keeb los yog khoom tsim. Lawv hom nto moo tshaj plaws yog suav tias yog xws li nthuav av nplaum pob zeb, tuff pob zeb, pumice pob zeb thiab cinder pob zeb. Feem ntau, chav kawm no yog siv rau kev tsim khoom ntawm cov plag tsev tsis dhau thiab cov phab ntsa loj.
hom kev sib sib zog nqus
Ultralight concretes yog subspecies ntawm chav kawm dhau los. Qhov no suav nrog aerated qhob thiab ua npuas ncauj ua npuas ncauj. Feem ntau lawv yog siv rau thermal rwb thaiv tsev.phab ntsa. Ib tug cubic meter ntawm lawv hnyav dua tsib puas kilograms. Qhov no kuj tseem yuav suav nrog perlite pob zeb nrog vermiculite pob zeb, uas yog lub teeb tshaj plaws ntawm cov pob zeb loj. Lawv qhov hnyav ntawm ib lub cubic meter yog los ntawm 700 mus rau 1200 kilograms. Qhov hnyav ntawm pob zeb no tso cai rau nws los siv rau hauv kev tsim cov txheej txheem, nrog rau cov panels thiab blocks rau phab ntsa ntawm cov tsev.
