Concrete M350 yog cov khoom siv zoo heev uas ua rau nws tuaj yeem tsim cov qauv tseem ceeb rau ntau lub hom phiaj thiab ntau yam khoom siv ua ntej. Tom qab hardening, qhov muaj pes tsawg leeg yog tus yam ntxwv los ntawm kev ua haujlwm siab rau sab nraud influences, muaj cov yam ntxwv zoo, tshwj xeeb tshaj yog compressive zog. Hauv kev tsim kho niaj hnub no, nws yog B25 chav ua vaj tsev uas yog tus thawj coj hauv kev muaj koob meej thiab kev muag khoom.
khoom siv
Qhob M350 chav B25 yog siv rau yuav luag txhua hom kev tsim kho. Pem teb slabs, monolithic foundations, phab ntsa, crossbars, kab, reinforced pob zeb lug thiab lwm yam structural ntsiab ntawm lub tsev, industrial thiab tswj vaj tse uas nqa hnyav loads yog tsim los ntawm nws. Tsis tas li ntawd, txoj kev tshav dav hlau slabs yog tsim los ntawm cov mortar no, ua haujlwm raws li cov xwm txheej ntawm qhov siab tshaj plaws.
Cia peb xav paub meej txog cov yam ntxwv uas cov khoom siv hauv tsev no muaj.
Ntse
Xav txog lub zog ntawm qhov teeb tsacompression. Nws yog ntsuas hauv MPa, txiav txim siab los ntawm chav kawm B25 (1 m3 ntawm cov khoom tsis ua txhaum kev ncaj ncees muaj peev xwm tiv taus lub siab ntawm 25 MPa). Lub zog ntawm B25 tau ua tiav vim tias muaj cov cement ntau dua hauv qhov sib tov. Ntxiv nrog rau lub zog, lub hom cement no muaj lwm cov cim tseem ceeb sib npaug: Frost tsis kam, kev txav mus los thiab dej tsis kam.
Kev
Qhov ntsuas no txawv ntawm P2 txog P4. Tab sis qib ntawm lub zog tuaj yeem nce mus rau qhov muaj txiaj ntsig loj yog tias cov pob zeb tau ntxiv nrog cov khoom ntxiv tshwj xeeb - plasticizers.
Nyob zoo dej hiav txwv
Concrete B25 muaj qhov ntsuas dej permeability - W8. Qhov kev ntsuas no qhia tau hais tias cov khoom siv tsis tuaj yeem dhau los ntawm nws tus kheej, txawm tias nws ua rau nws nyob rau hauv lub siab tseem ceeb. Ua tsaug rau qhov no, qib M350 pob zeb tuaj yeem siv rau thaj chaw uas muaj dej hauv av siab.
Frost resistance
Frost resistance Performance index F200 qhia tias cov khoom no yuav tsis poob nws cov khoom thiab kev ncaj ncees ntawm cov qauv tom qab ob puas voj voog ntawm khov thiab thawing. Cov pob zeb zoo li no tuaj yeem siv rau hauv huab cua hnyav.
ntim hnyav
Qhov ntsuas no hauv M350 pob zeb yog 1800-2500 kg / m³. Txawm li cas los xij, feem ntau qhov ntom ntom (qhov ntom) ntawm cov khoom no txawv ntawm 2200 txog 2400 kg / m³.
Main Components
M350 pob zeb feem ntau yog ua los ntawm cov cement, dej, xuab zeb thiab tawv aggregate xws li crushed gravel.los yog granite. Txhawm rau txhim kho cov khoom ntawm cov khoom siv no, cov khoom siv ntxiv thiab cov yas tau muab sib xyaw rau hauv nws cov muaj pes tsawg leeg, yog li nthuav dav ntawm hom pob zeb no
Rau qhov tsim khoom ntawm chav kawm B25 mortar siv:
- cement;
- sand;
- rubble;
- dej;
- plasticizers;
- antifreeze additives.
Nws yuav tsum tau muab sau tseg tias cov khoom siv los npaj cov tshuaj yuav txawv ntawm lawv cov yam ntxwv thiab cov yam ntxwv, xws li particle loj, lub zog, purity, noo noo.
Piv txwv li, ua tus muab tub lim tuaj yeem pab:
- xuab zeb ntawm nplua-grained, ntxhib lossis nruab nrab feem;
- gravel (txiv qaub lossis granite);
- rubble thiab tshuaj ntsuam.
Nws tseem tsim nyog sau cia tias B25 pob zeb muaj qhov feem pua ntawm cov cement ntau ntxiv, uas ua rau kom muaj zog sai sai.
Txoj kev
To npaj 1m3 ntawm cov khoom no koj yuav xav tau:
- 400 kg cement M400 lossis M500;
- 752 kg ntawm xuab zeb, ntxuav ntawm impurities;
- 175 litres dej;
- 1 tuj khoom muab tub lim (piv txwv li pob zeb crushed).
Yuav kom tau txais cov khoom zoo thiab ruaj khov M350, nws yog ib qho tseem ceeb tsis yog tsuas yog ua tib zoo saib xyuas cov proportions ntawm cov muaj pes tsawg leeg ib 1 m3, tab sis kuj sib tov tag nrho. cov khoom kom lub resulting loj yog homogeneous. Kev sib xyaw ua ke tsis zoo ua rau txo lub zog ntawm cov khoom siv no.
Npaj cov tshuaj
- Ua ntej koj yuav tsum taupob zeb sib tov ntxiv cov khoom xyaw qhuav (cement thiab xuab zeb) thiab sib tov kom huv si.
- Ntxiv dej. Nyob rau tib theem, ib tug plasticizer los yog lwm yam additive yog poured rau hauv cov tshuaj.
- pob zeb los yog pob zeb ntub dej ntxiv.
- Txoj kev sib tov sib xyaw.
Concrete M350: nqe
Cov neeg tsim khoom lawv tus kheej teeb tsa tus nqi rau cov khoom siv los ntawm kev suav tag nrho cov nqi, qhov tseem ceeb ntawm cov uas ntog ntawm cov pob zeb thiab cov cement. Yuav kom tau txais txiaj ntsig, kev lag luam margin yog ua ntau tshaj ntawm tus nqi nqi. Tias yog vim li cas txhua tus neeg tsim khoom tau txais nws tus nqi "tus kheej" kawg, uas feem ntau nyob ntawm tus nqi ntawm cov khoom siv raw.
Txhua tus tsim tawm xaiv los ntawm leej twg yuav M350 pob zeb. Tus nqi nruab nrab ntawm cov khoom siv nrog gravel filler yam tsis muaj kev xa khoom yuav yog los ntawm 3,000 rubles. rau 1 cubic meter sib tov, nrog crushed granite - los ntawm 3,700 rubles.
Yog tias cov tshuaj tiv thaiv kab mob ua kom tsis muaj zog ntxiv, tus nqi yuav pib los ntawm 4,000 rubles. Tsis tas li ntawd, tus nqi ntawm pob zeb yog cuam tshuam los ntawm nws cov dej tsis kam - qhov ntsuas no siab dua, tus nqi kim dua. Yog li, peb tuaj yeem txiav txim siab tias tus nqi ntawm cov khoom siv yog nyob ntawm tus neeg tsim khoom thiab tus nqi ntawm kev tau txais cov khoom sib xyaw.
