Sand plays lub luag haujlwm loj hauv kev tsim kho. Nws yog ntxiv rau ntau yam sib tov uas siv los ua cov blocks, pob zeb thiab plaster mortars. Lawv kuj ntxiv dag zog rau embankments thiab txoj kev. Cov khoom siv tsis yog tsuas yog ntuj, tab sis kuj yog khoom siv.
Nyob ntawm hom kev tsim khoom, xuab zeb yog alluvial, quarry, dej los yog hiav txwv. Alluvial (ntxuav) xuab zeb yog cov khoom siv zoo ib puag ncig uas tso cai rau dej hla. Nws muaj yuav luag tsis muaj av nplaum thiab pob zeb.
Kev tsim khoom
Cov khoom yog "khoov tawm" nrog lub siab loj ntawm cov dej hauv txoj kev hydromechanical, tshem tawm tag nrho cov khoom siv. Nws ua me thiab ntau homogeneous, nws qhov zoo nce. Niaj hnub no, cov xuab zeb alluvial yog qhov xav tau loj hauv kev tsim kho.
Features:
- txawv teb chaws hais nyob rau hauv qhov sib tov tsis ntau tshaj 0.3%;
- chav kawm xov tooj cua - thawj;
- densification factor – 1.05-1.52;
- loj filtration factor.
Alluvial xuab zeb tuaj yeem ua tau zoo,medium-grained thiab coarse-grained. Nws tus nqi nruab nrab yog 0.6 hli. Cov xim nyob ntawm seb cov impurities muaj nyob rau hauv cov khoom. Dawb los yog greyish xim muaj ntshiab quartz xuab zeb. Yog tias qhov ntxoov ntxoo yog xim av lossis daj, cov hlau oxides muaj nyob hauv cov khoom.
Daim ntawv thov
Sand alluvial use:
- rau kev tsim cov curbs, kem, reinforced pob zeb rings, paving slabs;
- as muab cov kev daws teeb meem;
- rau kev ua tiav.
Hluav taws kub cov xuab zeb (ntxuav) muaj ntau qhov zoo dua li cov khoom siv hauv chaw txua txiag zeb (tsis tau ntxuav).
Nyob zoo ib tsoom niam txiv kwv tij neej tsas sawv daws.
- Tsis muaj cov av nplaum (tsis zoo li cov xuab zeb uas tsis tau ntxuav, uas yuav tsum tau sieved).
- Tshwj xeeb cov ntsiab lus ntawm pob zeb loj thiab lub ntiaj teb.
- No organic teeb meem.
- Tsis xav tau kev ntxuav ntxiv.
Kev siv pob zeb ntshiab yog qhov tseem ceeb hauv kev tsim kho. Muaj txoj hauv kev los ntxuav cov khoom. Yog hais tias nws yog tsim nyog los ntxuav ib tug me me ntawm cov khoom, ces nws yog sifted thiab dej yog muab. Ua ntej, koj yuav tsum tau txhawj xeeb txog lub thawv uas sib tov yuav nchuav. Cov dej hloov ob peb zaug kom txog thaum cov khoom huv si.
Koj tuaj yeem yuav cov xuab zeb alluvial, tus nqi uas siab dua cov noob. Nws qhov zoo dua yog tias nws twb huv lawm. Muaj ib txoj hauv kev los ntxuav qhov sib tov. Siv ib tug hlau mesh stretched tshaj ib tug ncej. Ua ntej, cov sib tov yog sifted los ntawm ib tug mesh, thiab ces ntxuav nyob rau hauv ib lub thawv.
Muaj cov haujlwm hauv kev tsim kho uas yuav tsum tau siv cov khoom siv lead ua loj. Txhawm rau ua qhov no, coj ib lub thav duab nrog ib daim phiaj ntawm 5-10 mm. Nws yog ntsia nruj nreem horizontally ntawm bricks (4-5 pieces nyob rau hauv txhua lub ces kaum). Lub mesh yog lined nrog burlap. Cov sib tov yog nchuav los ntawm saum toj no, leveling nws, thiab dej yog muab nyob rau hauv siab los ntawm ib tug hose.
Qee zaum cov xuab zeb sib tov nrog impurities ntawm lub ntiaj teb thiab lwm yam kev ncua yog siv hauv kev tsim kho. Nws tuaj yeem siv tau thaum nws tsis tas yuav tsum ua haujlwm tsuas yog siv cov khoom zoo xwb. Piv txwv li, koj yuav tsum tau sau ib daim phiaj saum av los yog ib lub trench.
Ob qho tib si ntuj thiab dag xuab zeb pom nws daim ntawv thov. Lub zog ntawm cov khoom yog nyob ntawm qhov zoo ntawm lub tsev sib tov.
